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Ma KC, Mena E, Lindenberg L, Lay NS, Eclarinal P, Citrin DE, Pinto PA, Wood BJ, Dahut WL, Gulley JL, Madan RA, Choyke PL, Turkbey IB, Harmon SA. Deep learning-based whole-body PSMA PET/CT attenuation correction utilizing Pix-2-Pix GAN. Oncotarget 2024; 15:288-300. [PMID: 38712741 DOI: 10.18632/oncotarget.28583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024] Open
Abstract
PURPOSE Sequential PET/CT studies oncology patients can undergo during their treatment follow-up course is limited by radiation dosage. We propose an artificial intelligence (AI) tool to produce attenuation-corrected PET (AC-PET) images from non-attenuation-corrected PET (NAC-PET) images to reduce need for low-dose CT scans. METHODS A deep learning algorithm based on 2D Pix-2-Pix generative adversarial network (GAN) architecture was developed from paired AC-PET and NAC-PET images. 18F-DCFPyL PSMA PET-CT studies from 302 prostate cancer patients, split into training, validation, and testing cohorts (n = 183, 60, 59, respectively). Models were trained with two normalization strategies: Standard Uptake Value (SUV)-based and SUV-Nyul-based. Scan-level performance was evaluated by normalized mean square error (NMSE), mean absolute error (MAE), structural similarity index (SSIM), and peak signal-to-noise ratio (PSNR). Lesion-level analysis was performed in regions-of-interest prospectively from nuclear medicine physicians. SUV metrics were evaluated using intraclass correlation coefficient (ICC), repeatability coefficient (RC), and linear mixed-effects modeling. RESULTS Median NMSE, MAE, SSIM, and PSNR were 13.26%, 3.59%, 0.891, and 26.82, respectively, in the independent test cohort. ICC for SUVmax and SUVmean were 0.88 and 0.89, which indicated a high correlation between original and AI-generated quantitative imaging markers. Lesion location, density (Hounsfield units), and lesion uptake were all shown to impact relative error in generated SUV metrics (all p < 0.05). CONCLUSION The Pix-2-Pix GAN model for generating AC-PET demonstrates SUV metrics that highly correlate with original images. AI-generated PET images show clinical potential for reducing the need for CT scans for attenuation correction while preserving quantitative markers and image quality.
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Affiliation(s)
- Kevin C Ma
- Artificial Intelligence Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nathan S Lay
- Artificial Intelligence Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Phillip Eclarinal
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Deborah E Citrin
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Peter A Pinto
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Bradford J Wood
- Center for Interventional Oncology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - James L Gulley
- Center for Immuno-Oncology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Peter L Choyke
- Artificial Intelligence Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ismail Baris Turkbey
- Artificial Intelligence Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Stephanie A Harmon
- Artificial Intelligence Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Einstein DJ, Aragon-Ching JB, Karzai F, Madan RA. Biochemically recurrent prostate cancer in the era of EMBARK and PSMA PET imaging: everything has changed, except the patients. Curr Opin Oncol 2024; 36:164-168. [PMID: 38573205 DOI: 10.1097/cco.0000000000001030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
PURPOSE OF REVIEW Patients with biochemically recurrent prostate cancer (BCR) after unsuccessful curative therapies frequently have an indolent and asymptomatic disease course for years. There are no prospective data showing that treating BCR improves overall survival despite new imaging strategies and emerging therapeutic data. Managing BCR requires a unique perspective in oncology that balances toxicities and disease kinetics. RECENT FINDINGS Prostate specific membrane antigen (PSMA) imaging is now widely available and can define subclinical disease in patients with BCR who otherwise have negative CT and bone scans, but limited data exists showing that treating PSMA-positive disease has long term impact. A phase 3 trial demonstrated that the androgen receptor pathway inhibitor enzalutamide either alone or with androgen deprivation therapy (ADT) was superior in delaying metastasis, relative to ADT alone. Survival benefits from this study remain unknown. SUMMARY BCR is a heterogeneous population where overtreatment may present greater risk to patients than a disease course that is often indolent. Management of BCR should be individualized based on disease kinetics. Given the unique biology of BCR, future therapeutic research should emphasize an approach that alters disease trajectory without accompanying side effects and should explore options beyond ADT-based strategies.
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Affiliation(s)
| | | | - Fatima Karzai
- Genitorurinary Malignancies Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitorurinary Malignancies Branch, National Cancer Institute, Bethesda, Maryland, USA
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Madan RA, Yu EY, Posadas EM, Lee RJ, Karzai F, Choyke PL. Restaging With Prostate-Specific Membrane Antigen Imaging in Metastatic Castration-Resistant Prostate Cancer: When Seeing More Is Detrimental to Care. J Clin Oncol 2024:JCO2302727. [PMID: 38489582 DOI: 10.1200/jco.23.02727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/23/2024] [Accepted: 02/13/2024] [Indexed: 03/17/2024] Open
Abstract
#PSMA is amazing new tech but is using it to expedite the call of disease progression helping #ProstateCancer patients?
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Affiliation(s)
- Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | - Evan Y Yu
- University of Washington and Fred Hutchinson Cancer Center, Seattle, WA
| | - Edwin M Posadas
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Richard J Lee
- Department of Medicine, Harvard Medical School, Massachusetts General Hospital Cancer Center, Boston, MA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD
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Serritella AV, Beltran H, Lotan TL, VanderWeele DJ, Karzai F, Madan RA, Hussain M. Large Cell Neuroendocrine Prostate Cancer: Large Is Not Small. Oncologist 2024; 29:185-189. [PMID: 38206818 PMCID: PMC10911908 DOI: 10.1093/oncolo/oyad344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/22/2023] [Indexed: 01/13/2024] Open
Abstract
Neuroendocrine prostate cancer is complex, comprising a wide spectrum of phenotypes, which has led to very different entities being inappropriately lumped together or assumed to behave like more common entities. Elucidating subtle differences is critical for treatment decision making, as this commentary describes.
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Affiliation(s)
- Anthony V Serritella
- Robert H. Lurie Comprehensive Cancer Center; Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Himisha Beltran
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Tamara L Lotan
- Department of Pathology, Department of Urology, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David J VanderWeele
- Robert H. Lurie Comprehensive Cancer Center; Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Maha Hussain
- Robert H. Lurie Comprehensive Cancer Center; Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Karzai F, Madan RA, Figg WD. How far does a new horizon extend for rucaparib in metastatic prostate cancer? Transl Cancer Res 2024; 13:11-14. [PMID: 38410224 PMCID: PMC10894334 DOI: 10.21037/tcr-23-1563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/12/2023] [Indexed: 02/28/2024]
Affiliation(s)
- Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William D Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Belue MJ, Harmon SA, Yang D, An JY, Gaur S, Law YM, Turkbey E, Xu Z, Tetreault J, Lay NS, Yilmaz EC, Phelps TE, Simon B, Lindenberg L, Mena E, Pinto PA, Bagci U, Wood BJ, Citrin DE, Dahut WL, Madan RA, Gulley JL, Xu D, Choyke PL, Turkbey B. Deep Learning-Based Detection and Classification of Bone Lesions on Staging Computed Tomography in Prostate Cancer: A Development Study. Acad Radiol 2024:S1076-6332(24)00008-4. [PMID: 38262813 DOI: 10.1016/j.acra.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/25/2024]
Abstract
RATIONALE AND OBJECTIVES Efficiently detecting and characterizing metastatic bone lesions on staging CT is crucial for prostate cancer (PCa) care. However, it demands significant expert time and additional imaging such as PET/CT. We aimed to develop an ensemble of two automated deep learning AI models for 1) bone lesion detection and segmentation and 2) benign vs. metastatic lesion classification on staging CTs and to compare its performance with radiologists. MATERIALS AND METHODS This retrospective study developed two AI models using 297 staging CT scans (81 metastatic) with 4601 benign and 1911 metastatic lesions in PCa patients. Metastases were validated by follow-up scans, bone biopsy, or PET/CT. Segmentation AI (3DAISeg) was developed using the lesion contours delineated by a radiologist. 3DAISeg performance was evaluated with the Dice similarity coefficient, and classification AI (3DAIClass) performance on AI and radiologist contours was assessed with F1-score and accuracy. Training/validation/testing data partitions of 70:15:15 were used. A multi-reader study was performed with two junior and two senior radiologists within a subset of the testing dataset (n = 36). RESULTS In 45 unseen staging CT scans (12 metastatic PCa) with 669 benign and 364 metastatic lesions, 3DAISeg detected 73.1% of metastatic (266/364) and 72.4% of benign lesions (484/669). Each scan averaged 12 extra segmentations (range: 1-31). All metastatic scans had at least one detected metastatic lesion, achieving a 100% patient-level detection. The mean Dice score for 3DAISeg was 0.53 (median: 0.59, range: 0-0.87). The F1 for 3DAIClass was 94.8% (radiologist contours) and 92.4% (3DAISeg contours), with a median false positive of 0 (range: 0-3). Using radiologist contours, 3DAIClass had PPV and NPV rates comparable to junior and senior radiologists: PPV (semi-automated approach AI 40.0% vs. Juniors 32.0% vs. Seniors 50.0%) and NPV (AI 96.2% vs. Juniors 95.7% vs. Seniors 91.9%). When using 3DAISeg, 3DAIClass mimicked junior radiologists in PPV (pure-AI 20.0% vs. Juniors 32.0% vs. Seniors 50.0%) but surpassed seniors in NPV (pure-AI 93.8% vs. Juniors 95.7% vs. Seniors 91.9%). CONCLUSION Our lesion detection and classification AI model performs on par with junior and senior radiologists in discerning benign and metastatic lesions on staging CTs obtained for PCa.
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Affiliation(s)
- Mason J Belue
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Stephanie A Harmon
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Dong Yang
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Julie Y An
- Department of Radiology, University of California, San Diego, California, USA (J.Y.A.)
| | - Sonia Gaur
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA (S.G.)
| | - Yan Mee Law
- Department of Radiology, Singapore General Hospital, Singapore (Y.M.L.)
| | - Evrim Turkbey
- Department of Radiology, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA (E.T., B.J.W.)
| | - Ziyue Xu
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Jesse Tetreault
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Nathan S Lay
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Enis C Yilmaz
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Tim E Phelps
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Benjamin Simon
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Peter A Pinto
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (P.A.P.)
| | - Ulas Bagci
- Radiology and Biomedical Engineering Department, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA (U.B.)
| | - Bradford J Wood
- Department of Radiology, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA (E.T., B.J.W.); Center for Interventional Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (B.J.W.)
| | - Deborah E Citrin
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (D.E.C.)
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (W.L.D., R.A.M.)
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (W.L.D., R.A.M.)
| | - James L Gulley
- Center for Immuno-Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (J.L.G.)
| | - Daguang Xu
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.).
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Madan RA, Karzai F, VanderWeele DJ, Cheng HH, de Bono JS. Poly(ADP-ribose) Polymerase Inhibitor Combinations in First-Line Metastatic Castration-Resistant Prostate Cancer: Increasing Toxicity With Unclear Benefits. J Clin Oncol 2023; 41:5501-5504. [PMID: 37847874 PMCID: PMC10861006 DOI: 10.1200/jco.23.01502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/01/2023] [Accepted: 08/23/2023] [Indexed: 10/19/2023] Open
Abstract
Positive phase III trials are not truly practice changing if they do not accurately inform on the best options for patients
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Affiliation(s)
- Ravi A. Madan
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | - Fatima Karzai
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | - David J. VanderWeele
- Division of Hematology/Oncology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Heather H. Cheng
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA
| | - Johann S. de Bono
- The Institute of Cancer Research, London, United Kingdom
- The Royal Marsden NHS Foundation Trust, London, United Kingdom
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Gandhy SU, Karzai FH, Bilusic M, McMahon S, Cordes LM, Marte J, Weisman AJ, Perk TG, Lindenberg L, Mena E, Turkbey B, Arlen PM, Dahut WL, Figg WD, Choyke P, Gulley JL, Madan RA. Quantitative Analysis of Serial Positron Emission Tomography Imaging in Men with Metastatic Castration-resistant Prostate Cancer Treated with Enzalutamide. Eur Urol Oncol 2023:S2588-9311(23)00205-5. [PMID: 37858437 PMCID: PMC11021375 DOI: 10.1016/j.euo.2023.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/18/2023] [Accepted: 09/11/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND The emergence of positron emission tomography (PET) in prostate cancer is impacting clinical practice, but little is known about PET imaging as a tool to determine treatment failure in metastatic castration-resistant prostate cancer (mCRPC). OBJECTIVE To evaluate PET imaging dynamics in mCRPC patients on enzalutamide with stable computed tomography (CT) and technetium-99m (Tc99) bone scans. DESIGN, SETTING, AND PARTICIPANTS All patients were on treatment with enzalutamide for first-line mCRPC in a clinical trial at the National Cancer Institute (Bethesda, MD, USA). A volunteer sample had serial 18F-sodium fluoride (NaF) PET in parallel with CT and Tc99. Regions of interest (ROIs) on NaF were analyzed quantitatively for response. INTERVENTION Patients were randomized to enzalutamide with/without a cancer immunotherapy, Prostvac. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS A post hoc, descriptive analysis was performed comparing the changes seen on CT and Tc99 as per RECIST 1.1 with NaF PET scans including the use of a quantitative analysis. RESULTS AND LIMITATIONS Eighteen mCRPC patients had 67 NaF scans. A total of 233 ROIs resolved after treatment, 52 (22%) of which eventually retuned while on therapy. In all, 394 new ROIs were seen, but 112(28%) resolved subsequently. Of 18 patients, 14 had new ROIs that ultimately resolved after appearing. Many patients experienced progression in a minority of lesions, and one patient with radiation intervention to oligoprogression had a remarkable response. This study is limited by its small number of patients and post hoc nature. CONCLUSIONS These data highlight the dynamic nature of NaF PET in mCRPC patients treated with enzalutamide, where not all new findings were ultimately related to disease progression. This analysis also provides a potential strategy to identify and intervene in oligoprogression in prostate cancer. PATIENT SUMMARY In this small analysis of patients with prostate cancer on enzalutamide, changes on 18F-sodium fluoride positron emission tomography (PET) imaging were not always associated with treatment failure. Caution may be indicated when using PET imaging to determine whether new therapy is needed.
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Affiliation(s)
- Shruti U Gandhy
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Fatima H Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sheri McMahon
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jennifer Marte
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Philip M Arlen
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William D Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Peter Choyke
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - James L Gulley
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Bowling GC, Swargaloganathan P, Heintz C, Madan RA, Eldhose B, Dobi A, Chesnut GT. Hematological Toxicities with PARP Inhibitors in Prostate Cancer: A Systematic Review and Meta-Analysis of Phase II/III Randomized Controlled Trials. Cancers (Basel) 2023; 15:4904. [PMID: 37835597 PMCID: PMC10571760 DOI: 10.3390/cancers15194904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Poly ADP-ribose polymerase inhibitors (PARPis) are an important class of therapeutics for metastatic castration-resistant prostate cancer (mCRPC). Unlike hormone-based treatments for mCRPC, PARPis are not without drug-related hematological adverse events. OBJECTIVE To review the evidence on hematological toxicities, including anemia, thrombocytopenia, and neutropenia from PARPis in prostate cancer. STUDY METHODOLOGY A systematic review and meta-analysis using the PRISMA guidelines was performed for phase II and III randomized controlled trials (RCTs) of PARPis in prostate cancer. PubMed, Embase, and Ovid All EBM reviews-Cochrane were queried from inception to 9 June 2023. The Mantel-Haenszel method was used to report risk ratios (RR) and 95% confidence intervals (CI) for all-grade and high-grade anemia, thrombocytopenia, and neutropenia toxicities. RESULTS The systematic review retrieved eight phase II and III RCTs; specifically, eight were included in the anemia, five in the all-grade thrombocytopenia and neutropenia, and four in the high-grade thrombocytopenia and neutropenia outcomes. Compared to a placebo and/or other non-PARPi treatments, PARPi use was associated with an increased risk of all-grade anemia (RR, 3.37; 95% CI, 2.37-4.79; p < 0.00001), thrombocytopenia (RR, 4.54; 95% CI, 1.97-10.44; p = 0.0004), and neutropenia (RR, 3.11; 95% CI, 1.60-6.03; p = 0.0008). High-grade anemia (RR, 6.94; 95% CI, 4.06-11.86; p < 0.00001) and thrombocytopenia (RR, 5.52; 95% CI, 2.80-10.88; p < 0.00001) were also associated with an increased risk, while high-grade neutropenia (RR, 3.63; 95% CI, 0.77-17.23; p = 0.10) showed no significant association. Subgroup stratification analyses showed differences in various all-grade and high-grade toxicities. CONCLUSION PARPis were associated with an increased risk of hematological AEs. Future studies with more pooled RCTs will enhance this understanding and continue to inform patient-physician shared decision-making. Future studies may also have a role in improving the current management strategies for these AEs.
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Affiliation(s)
- Gartrell C. Bowling
- School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
- Center for Prostate Disease Research, Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
| | | | - Carly Heintz
- School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
| | - Ravi A. Madan
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Binil Eldhose
- Center for Prostate Disease Research, Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
- Henry M Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
| | - Albert Dobi
- Center for Prostate Disease Research, Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
- Henry M Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
| | - Gregory T. Chesnut
- Center for Prostate Disease Research, Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
- Henry M Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
- Urology Service, Walter Reed National Medical Center, Bethesda, MD 20814, USA
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10
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Redman JM, O’Sullivan Coyne G, Reed CT, Madan RA, Strauss J, Steinberg SJ, Marté J, Cordes L, Heery C, Gulley JL. Avelumab in Patients With Metastatic Colorectal Cancer. Oncologist 2023; 28:823-e804. [PMID: 37310790 PMCID: PMC10485289 DOI: 10.1093/oncolo/oyad162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/07/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND Metastatic colorectal cancer (mCRC) is incurable, and median overall survival is less than 2½ years. Although monoclonal antibodies that block PD-1/PD-L1 interactions are active in microsatellite unstable/mismatch repair deficient tumors, a growing dataset shows that most patients with microsatellite stable/mismatch repair proficient tumors will not benefit from the blockade of PD-1/PD-L1 interactions. Here we present results from patients with mCRC (n = 22) treated with the anti-PD-L1 monoclonal antibody avelumab. METHODS Patients received treatment on a phase I, open-label, dose-escalation trial via a consecutive parallel-group expansion in colorectal cancer. Patients aged 18 years and older with mCRC measurable by RECIST v1.1 who had received at least 1 line of systemic therapy for metastatic disease enrolled. Patients with prior immune checkpoint inhibitor treatment were excluded. Patients received avelumab 10 mg/kg intravenously every 2 weeks. The primary endpoint was the objective response rate. RESULTS Twenty-two participants received treatment from July 2013 to August 2014. There were no objective responses and median progression-free survival was 2.1 months (95% CI: 1.4-5.5 months). There were 5 grade 3 treatment-related adverse events: GGT elevation (n = 2), PRESS (n = 1), lymphopenia (n = 1), and asymptomatic amylase/lipase elevation (n = 1). CONCLUSION As demonstrated with other anti-PD-1/PD-L1 monoclonal antibodies, avelumab is not active in unselected patients with mCRC (ClinicalTrials.gov Identifier: NCT01772004).
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Affiliation(s)
- Jason M Redman
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Geraldine O’Sullivan Coyne
- Developmental Therapeutics Clinic, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, MD, USA
| | - Clay T Reed
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Julius Strauss
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Seth J Steinberg
- Biostatistics and Data Management Section, Office of the Clinical Director, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Jennifer Marté
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Lisa Cordes
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Christopher Heery
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - James L Gulley
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
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11
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Cordes LM, Karzai F, Figg WD, Madan RA. Relugolix in Clinical Practice: The Best Route for All? Oncologist 2023:7159219. [PMID: 37162497 PMCID: PMC10400131 DOI: 10.1093/oncolo/oyad099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/23/2023] [Indexed: 05/11/2023] Open
Abstract
Androgen deprivation therapy (ADT) has been a mainstay of prostate cancer treatment for decades. Relugolix was FDA-approved in 2020 and is currently the only ADT option via an oral route. While the opportunity to use an oral medication for this indication has some advantages, a balanced discussion is required to understand in what clinical settings this agent truly has benefit over long-acting injectable formulations of ADT. Furthermore, patient preference, compliance, financial toxicity, and perhaps most importantly, pharmacologic characteristics must be considered.
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Affiliation(s)
- Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
- Office of Clinical Research, National Institutes of Health, Bethesda, MD, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - William D Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
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12
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Madan RA, Bilusic M, Stein MN, Donahue RN, Arlen PM, Karzai F, Plimack E, Wong YN, Geynisman DM, Zibelman M, Mayer T, Strauss J, Chen G, Rauckhorst M, McMahon S, Couvillon A, Steinberg S, Figg WD, Dahut WL, Schlom J, Gulley JL. Flutamide With or Without PROSTVAC in Non-metastatic Castration Resistant (M0) Prostate Cancer. Oncologist 2023:7150994. [PMID: 37134294 DOI: 10.1093/oncolo/oyad058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/10/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Before 2018, there was no standard of care for non-metastatic (M0) castration resistant prostate cancer nmCRPC. Androgen receptor antagonists (ARAs) were commonly used sequentially nmCRPC. METHODS This was a multicenter, randomized clinical trial comparing the ARA flutamide+/-PROSTVAC, a pox viral vaccine targeting PSA that includes T-cell co-stimulatory molecules. Eligible men had negative CT and Tc99 bone scans, and rising PSA on ADT. Previous treatment with ARA was a stratification factor. Patients were also evaluated for antigen-specific immune responses using intracellular cytokine staining. RESULTS Thirty-three patients randomized to flutamide and 31 to flutamide+vaccine. The median age was 71.8 and 69.8 years, respectively. The median time to treatment failure after a median potential follow-up of 46.7 months was, 4.5 months (range 2-70) for flutamide alone vs. 6.9 months (2.5-40; P = .38) with flutamide+vaccine. Seven patients in each arm had a >50% PSA response. Antigen-specific responses were similar in both arms (58% of patients in flutamide alone and 56% in flutamide+vaccine). The treatments were well tolerated. The most common side effect > grade 2 was injection site reaction seen in 29/31 vaccine patients which were self-limiting. CONCLUSION The combination of flutamide+PROSTVAC did not improve outcomes in men with nmCRPC compared with flutamide alone. (ClinicalTrials.gov Identifier: NCT00450463).
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Affiliation(s)
| | | | - Mark N Stein
- Division of Hematology/Oncology, Columbia University Medical Center, New York, NY, USA
| | | | | | | | - Elizabeth Plimack
- Department of Hematology/Oncology, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, USA
| | | | - Daniel M Geynisman
- Department of Hematology/Oncology, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, USA
| | - Matthew Zibelman
- Department of Hematology/Oncology, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, USA
| | - Tina Mayer
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | | | - Gang Chen
- National Cancer Institute, Bethesda, MD, USA
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13
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Madan RA, Redman JM, Karzai F, Dahut WL, Cordes L, Fakhrejahani F, Vu T, Sheikh N, Schlom J, Gulley JL. Avelumab in Men With Metastatic Castration-Resistant Prostate Cancer, Enriched for Patients Treated Previously With a Therapeutic Cancer Vaccine. J Immunother 2023; 46:145-151. [PMID: 36821354 PMCID: PMC10072211 DOI: 10.1097/cji.0000000000000459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 01/25/2023] [Indexed: 02/24/2023]
Abstract
Therapeutic cancer vaccines including sipuleucel- T , a prostatic acid phosphatase (PAP) targeted vaccine that improves survival in metastatic castration-resistant prostate cancer (mCRPC), can produce immune responses that translate to clinical benefit. The effects of sequential checkpoint inhibitors after therapeutic vaccine on immune responses are unknown. Avelumab is an anti-programmed death ligand-1 monoclonal antibody evaluated in patients with mCRPC in the JAVELIN solid tumor phase 1 trial expansion cohort, enriched for patients with a previous therapeutic prostate cancer-targeted vaccine. mCRPC patients received intravenous avelumab 10 mg/kg every 2 weeks with imaging every 6 weeks. Peripheral blood T-cell responses to PAP and to PA2024, the peptide containing PAP utilized by the vaccine, were evaluated pre and posttreatment. Eighteen patients enrolled, and previous treatments included abiraterone or enzalutamide in 14 (78%), therapeutic cancer vaccine in 14 (78%), and chemotherapy in 4 (22%). Avelumab had a manageable safety profile. There were no sustained prostate specific antigen decreases. Of 17 patients evaluable for best overall response by RECISTv1.1, 12 had stable disease (SD) and 5 had progressive disease. Seven patients had SD for >24 weeks posttreatment. Fourteen patients had previously received therapeutic cancer vaccines. Eleven (79%) had SD as the best overall response. Of these 14 patients, 9 had previously received sipuleucel T . Analysis of antigen-specific T-cell responses pre and postavelumab treatment did not demonstrate changes in interferon-γ production or proliferation in response to PAP or PA2024. This unplanned analysis does not support the use of sequential therapeutic cancer vaccine therapy followed by programmed death ligand-1 inhibition in mCRPC.
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Affiliation(s)
- Ravi A. Madan
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Jason M. Redman
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Fatima Karzai
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - William L. Dahut
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Lisa Cordes
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Farhad Fakhrejahani
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | | | | | - Jeffrey Schlom
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - James L. Gulley
- Genitourinary Malignancies Branch Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
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14
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Parsons JK, Pinto PA, Pavlovich CP, Uchio E, Nguyen MN, Kim HL, Gulley JL, Sater HA, Jamieson C, Hsu CH, Wojtowicz M, House M, Schlom J, Donahue RN, Dahut WL, Madan RA, Bailey S, Centuori S, Bauman JE, Parnes HL, Chow HHS. A Phase 2, Double-blind, Randomized Controlled Trial of PROSTVAC in Prostate Cancer Patients on Active Surveillance. Eur Urol Focus 2023; 9:447-454. [PMID: 36517408 PMCID: PMC10258223 DOI: 10.1016/j.euf.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/17/2022] [Accepted: 12/01/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND There is an unmet clinical need for interventions to prevent disease progression in patients with localized prostate cancer on active surveillance (AS). OBJECTIVE To determine the immunologic response to the PROSTVAC vaccine and the clinical indicators of disease progression in patients with localized prostate cancer on AS. DESIGN, SETTING, AND PARTICIPANTS This was a phase 2, double-blind, randomized controlled trial in 154 men with low- or intermediate-risk prostate cancer on AS. INTERVENTION Participants were randomized (2:1) to receive seven doses of subcutaneous PROSTVAC, a vaccinia/fowlpox viral vector-based immunotherapy containing a prostate-specific antigen (PSA) transgene and three T-cell co-stimulatory molecules, or an empty fowlpox vector (EV) over 140 d. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary outcome was the change from baseline in CD4 and CD8 T-cell infiltration in biopsy tumor tissue. Key secondary outcomes were safety and changes in prostate biopsy tumor pathology, peripheral antigen-specific T cells, and serum PSA. Continuous variables were compared using nonparametric tests. Categorical variables were compared using Fisher's exact test. RESULTS AND LIMITATIONS The PROSTVAC/EV vaccination was well tolerated. All except one participant completed the vaccination series. Changes in CD4 or CD8 density in biopsy tumor tissue did not differ between the PROSTVAC and EV arms. The proportions of patients with Gleason upgrading to grade group 3 after treatment was similar between the arms. There were no differences in postvaccination peripheral T-cell responses or the PSA change from baseline to 6-mo post-treatment follow-up between the groups. CONCLUSIONS In this first-of-kind trial of immunotherapy in patients on AS for prostate cancer, PROSTVAC did not elicit more favorable prostate tissue or peripheral T-cell responses than the EV. There was no difference between the arms in clinicopathologic effects. Despite the null findings, this is the first study reporting the feasibility and acceptability of an immunotherapy intervention in the AS setting. PATIENT SUMMARY We looked at responses after an experimental prostate cancer vaccine in patients with prostate cancer on active surveillance (AS). Participants who received the vaccine did not show more favorable outcomes than those receiving the control. Despite these findings, this is the first report showing the feasibility and acceptability of immunotherapy for prostate cancer in patients on AS.
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Affiliation(s)
- J Kellogg Parsons
- Department of Urology, UC San Diego Moores Cancer Center, La Jolla, CA, USA
| | | | | | - Edward Uchio
- Department of Urology, UC Irvine, Orange, CA, USA
| | - Mike N Nguyen
- Department of Urology, University of Southern California, Los Angeles, CA, USA
| | - Hyung L Kim
- Division of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | | | - Christina Jamieson
- Department of Urology, UC San Diego Moores Cancer Center, La Jolla, CA, USA
| | | | | | | | | | | | | | | | | | - Sara Centuori
- University of Arizona Cancer Center, Tucson, AZ, USA
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15
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Atiq M, Chandran E, Karzai F, Madan RA, Aragon-Ching JB. Emerging treatment options for prostate cancer. Expert Rev Anticancer Ther 2023; 23:625-631. [PMID: 37101345 DOI: 10.1080/14737140.2023.2208352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
INTRODUCTION Prostate cancer treatment has rapidly evolved in the last few years. Androgen deprivation therapy has been the backbone of treatment for locally advanced and metastatic prostate cancer but incremental benefits in survival has been shown by adding androgen-receptor pathway inhibitors (ARPI) across various spectrums of disease state. In addition, docetaxel chemotherapy remains the first-line chemotherapy regimen available with survival benefits shown with triplet therapy in those who are chemotherapy-eligible. However, disease progression remains inevitable and novel agents such as radioligand therapy with lutetium have shown improvement in survival. AREAS COVERED This review discusses the pivotal trials that led to the US FDA approval of agents utilized in metastatic prostate cancer and explores the use of novel agents including PSMA-targeting agents, radioligands, cell-based therapy, CAR-T, BiTE, and antibody drug conjugates. EXPERT OPINION Treatment landscape for metastatic castrate-resistant prostate cancer (mCRPC) has evolved beyond additional agents with ARPI and/or docetaxel, including other treatments with sipuleucel-T, radium, cabazitaxel, PARP inhibitors, and lutetium, which have specific indications and role in sequencing. Novel therapies remain critically needed after progression from lutetium.
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Affiliation(s)
- Mohammad Atiq
- Genitourinary Malignancy Branch, Cancer Institute, Bethesda, MD, United States
| | - Elias Chandran
- Genitourinary Malignancy Branch, Cancer Institute, Bethesda, MD, United States
| | - Fatima Karzai
- Genitourinary Malignancy Branch, Cancer Institute, Bethesda, MD, United States
| | - Ravi A Madan
- Genitourinary Malignancy Branch, Cancer Institute, Bethesda, MD, United States
| | - Jeanny B Aragon-Ching
- GU Medical Oncology, Inova Schar Cancer Institute, Fairfax, VA, United States
- Medical Education, University of Virginia, Charlottesville, VA, United States
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16
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Phelps TE, Harmon SA, Mena E, Lindenberg L, Shih JH, Citrin DE, Pinto PA, Wood BJ, Dahut WL, Gulley JL, Madan RA, Choyke PL, Turkbey B. Predicting Outcomes of Indeterminate Bone Lesions on 18F-DCFPyL PSMA PET/CT Scans in the Setting of High-Risk Primary or Recurrent Prostate Cancer. J Nucl Med 2023; 64:395-401. [PMID: 36265908 DOI: 10.2967/jnumed.122.264334] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Indeterminate bone lesions (IBLs) on prostate-specific membrane antigen (PSMA) PET/CT are common. This study aimed to define variables that predict whether such lesions are likely malignant or benign using features on PSMA PET/CT. Methods: 18F-DCFPyL PET/CT imaging was performed on 243 consecutive patients with high-risk primary or biochemically recurrent prostate cancer. IBLs identified on PSMA PET/CT could not definitively be interpreted as benign or malignant. Medical records of patients with IBLs were reviewed to determine the ultimate status of each lesion. IBLs were deemed malignant or benign on the basis of evidence of progression or stability at follow-up, respectively, or by biopsy results; IBLs were deemed equivocal when insufficient or unclear evidence existed. Post hoc patient, lesion, and scan variables accounting for clustered data were evaluated using Wilcoxon rank-sum and χ2 tests to determine features that favored benign or malignant interpretation. Results: Overall, 98 IBLs within 267 bone lesions (36.7%) were identified in 48 of 243 patients (19.8%). Thirty-seven of 98 IBLs were deemed benign, and 42 were deemed malignant, of which 8 had histologic verification; 19 remained equivocal. Location and SUVmax categorical variables were predictive of IBL interpretation (P = 0.0201 and P = 0.0230, respectively). For IBLs with new interpretations, 34 of 37 (91.9%) considered benign showed an SUVmax of less than 5 or exhibited focal uptake without coexisting bone metastases; 37 of 42 (88.1%) deemed malignant demonstrated an SUVmax of at least 5 or were present with coexisting bone metastases. Logistic regression predicted IBLs with a high SUVmax (univariable: odds ratio [OR], 9.29 [P = 0.0016]; multivariable: OR, 13.87 [P = 0.0089]) or present with other bone metastases (univariable: OR, 9.87 [P = 0.0112]; multivariable: OR, 11.35 [P = 0.003]) to be malignant. Conclusion: IBLs on PSMA PET/CT are concerning; however, characterizing their location, SUV, and additional scan findings can aid interpretation. IBLs displaying an SUVmax of at least 5 or present with other bone metastases favor malignancy. IBLs without accompanying bone metastases that exhibit an SUVmax of less than 5 and are observed only in atypical locations favor benign processes. These guidelines may assist in the interpretation of IBLs on PSMA PET/CT.
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Affiliation(s)
- Tim E Phelps
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland;
| | - Stephanie A Harmon
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Joanna H Shih
- Biometric Research Program, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Deborah E Citrin
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Peter A Pinto
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Bradford J Wood
- Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, Maryland.,Center for Interventional Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland; and
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - James L Gulley
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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17
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Autio KA, Higano CS, Nordquist L, Appleman LJ, Zhang T, Zhu XH, Babiker H, Vogelzang NJ, Prasad SM, Schweizer MT, Madan RA, Billotte S, Cavazos N, Bogg O, Li R, Chan K, Cho H, Kaneda M, Wang IM, Zheng J, Tang SY, Hollingsworth R, Kern KA, Petrylak DP. First-in-human, phase 1 study of PF-06753512, a vaccine-based immunotherapy regimen (VBIR), in non-metastatic hormone-sensitive biochemical recurrence and metastatic castration-resistant prostate cancer (mCRPC). J Immunother Cancer 2023; 11:jitc-2022-005702. [PMID: 36948505 PMCID: PMC10040068 DOI: 10.1136/jitc-2022-005702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2022] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND This phase 1 study evaluated PF-06753512, a vaccine-based immunotherapy regimen (PrCa VBIR), in two clinical states of prostate cancer (PC), metastatic castration-resistant PC (mCRPC) and biochemical recurrence (BCR). METHODS For dose escalation, patients with mCRPC received intramuscular PrCa VBIR (adenovirus vector and plasmid DNA expressing prostate-specific membrane antigen (PSMA), prostate-specific antigen (PSA), and prostate stem cell antigen (PSCA)) with or without immune checkpoint inhibitors (ICIs, tremelimumab 40 or 80 mg with or without sasanlimab 130 or 300 mg, both subcutaneous). For dose expansion, patients with mCRPC received recommended phase 2 dose (RP2D) of PrCa VBIR plus tremelimumab 80 mg and sasanlimab 300 mg; patients with BCR received PrCa VBIR plus tremelimumab 80 mg (Cohort 1B-BCR) or tremelimumab 80 mg plus sasanlimab 130 mg (Cohort 5B-BCR) without androgen deprivation therapy (ADT). The primary endpoint was safety. RESULTS Ninety-one patients were treated in dose escalation (mCRPC=38) and expansion (BCR=35, mCRPC=18). Overall, treatment-related and immune-related adverse events occurred in 64 (70.3%) and 39 (42.9%) patients, with fatigue (40.7%), influenza-like illness (30.8%), diarrhea (23.1%), and immune-related thyroid dysfunction (19.8%) and rash (15.4%), as the most common. In patients with mCRPC, the objective response rate (ORR, 95% CI) was 5.6% (1.2% to 15.4%) and the median radiographic progression-free survival (rPFS) was 5.6 (3.5 to not estimable) months for all; the ORR was 16.7% (3.6% to 41.4%) and 6-month rPFS rate was 45.5% (24.9% to 64.1%) for those who received RP2D with measurable disease (n=18). 7.4% of patients with mCRPC achieved a ≥50% decline in baseline PSA (PSA-50), with a median duration of 4.6 (1.2-45.2) months. In patients with BCR, 9 (25.7%) achieved PSA-50; the median duration of PSA response was 3.9 (1.9-4.2) and 10.1 (6.9-28.8) months for Cohorts 5B-BCR and 1B-BCR. Overall, antigen specific T-cell response was 88.0% to PSMA, 84.0% to PSA, and 80.0% to PSCA. CONCLUSIONS PrCa VBIR overall demonstrated safety signals similar to other ICI combination trials; significant side effects were seen in some patients with BCR. It stimulated antigen-specific immunity across all cohorts and resulted in modest antitumor activity in patients with BCR without using ADT. TRIAL REGISTRATION NUMBER NCT02616185.
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Affiliation(s)
- Karen A Autio
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Celestia S Higano
- University of Washington, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | - Tian Zhang
- Duke Cancer Institute, Durham, North Carolina, USA
- UT Southwestern Medical Center, Dallas, Texas, USA
| | - Xin-Hua Zhu
- Northwell Health Cancer Institute, New Hyde Park, New York, USA
| | - Hani Babiker
- University of Arizona Cancer Center, Tucson, Arizona, USA
| | | | - Sandip M Prasad
- Morristown Medical Center/Atlantic Health System, Morristown, New Jersey, USA
| | - Michael T Schweizer
- University of Washington, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Ravi A Madan
- National Cancer Institute, Bethesda, Maryland, USA
| | | | | | | | - Ray Li
- Pfizer Inc, New York, New York, USA
| | - Kam Chan
- Pfizer Inc, New York, New York, USA
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Gatti-Mays ME, Tschernia NP, Strauss J, Madan RA, Karzai FH, Bilusic M, Redman J, Sater HA, Floudas CS, Toney NJ, Donahue RN, Jochems C, Marté JL, Francis D, McMahon S, Lamping E, Cordes L, Schlom J, Gulley JL. A Phase I Single-Arm Study of Biweekly NHS-IL12 in Patients With Metastatic Solid Tumors. Oncologist 2023; 28:364-e217. [PMID: 36640137 PMCID: PMC10078919 DOI: 10.1093/oncolo/oyac244] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/14/2022] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND NHS-IL12 is a first-in-class, recombinant fusion protein composed of the human monoclonal antibody NHS76 (binds exposed DNA/histones at sites of intratumoral necrosis) fused to 2 IL-12 heterodimers. The maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of NHS-IL12 monotherapy given subcutaneously (SC) every 4 weeks was previously reported. The study was expanded to include a high-exposure cohort with NHS-IL12 SC every 2 weeks (q2w). METHODS This single-arm, phase I trial evaluated NHS-IL12 12 µg/kg SC q2w or 16.8µg/kg SC q2w in patients with metastatic solid tumors. The primary endpoint was safety. RESULTS Using a 3+3 design, 13 patients with advanced cancer were enrolled and 12 were dose-limiting toxicity (DLT) evaluable. There was 1 DLT (Grade 3 aspartate transaminase/alanine transaminase [AST/ALT] elevation). Other grade 3 toxicities included: flu-like symptoms 1/13 (8%), decreased absolute lymphocyte count (ALC) 1/13 (8%), decreased white blood cell count (WBC) 1/13 (8%), but most adverse events reported were low grade and self-limiting grade. Fifty percent of evaluable patients (6/12) experienced stable disease (SD) with 42% (5/12) developing progressive disease (PD) at the first restaging. CONCLUSION Biweekly NHS-IL12 was well tolerated in this small phase I study. Additional studies incorporating NHS-IL12 with other immunomodulating agents are underway. (ClinicalTrials.gov Identifier: NCT01417546).
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Affiliation(s)
- Margaret E Gatti-Mays
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nicholas P Tschernia
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Julius Strauss
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Fatima H Karzai
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marijo Bilusic
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jason Redman
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Houssein Abdul Sater
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Charalampos S Floudas
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nicole J Toney
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Caroline Jochems
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jennifer L Marté
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Deneise Francis
- Office of Research Nursing, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD, USA
| | - Sheri McMahon
- Office of Research Nursing, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD, USA
| | - Elizabeth Lamping
- Office of Research Nursing, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD, USA
| | - Lisa Cordes
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - James L Gulley
- Genitourinary Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Atiq MO, Pastor DM, Karzai F, Hankin AR, Turkbey B, Cordes LM, Brownell I, Liu Y, Chesnut GT, Madan RA. First-line pembrolizumab plus androgen deprivation therapy for locally advanced microsatellite instability-high prostate cancer in a patient with Muir-Torre syndrome: A case report. Front Oncol 2023; 13:1126476. [PMID: 36937405 PMCID: PMC10022659 DOI: 10.3389/fonc.2023.1126476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/16/2023] [Indexed: 03/06/2023] Open
Abstract
The risks of development of colorectal and endometrial cancers in individuals with Lynch syndrome (LS) are well known and have been widely studied. In recent years, the potential association of other malignancies, including prostate cancer, with LS has been considered. Decision-making regarding screening for prostate cancer in the generalized population can be complicated; accounting for the possibility of a higher risk of cancer conferred by a potential genetic predisposition confounds the creation of salient guidelines even further. Although tissue-agnostic treatment approvals have been granted to several immune checkpoint inhibitors (ICIs) for their use in the treatment of subsets of patients whose tumors exhibit high levels of microsatellite instability or high tumor mutational burden, a paucity of data exists regarding the use of ICIs in the first line treatment of patients with locally advanced prostate cancer harboring these features. A significant reduction in tumor volume in response to the combination of immune checkpoint inhibition and androgen deprivation therapy is described in this report of a male with Muir-Torre syndrome who was found to have locally advanced adenocarcinoma of the prostate. While anecdotal, the anti-tumor activity of this combination of therapy is notable and calls attention to the importance of considering further investigation of the use of immune checkpoint blockade as a primary therapeutic option in patients with localized prostate cancer.
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Affiliation(s)
- Mohammad O. Atiq
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Danielle M. Pastor
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Danielle M. Pastor,
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Amy R. Hankin
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Baris Turkbey
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Lisa M. Cordes
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Isaac Brownell
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
- Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Yi Liu
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Gregory T. Chesnut
- Urology Service, Department of Surgery, Walter Reed National Military Medical Center, Bethesda, MD, United States
- Center for Prostate Disease Research, Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Ravi A. Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
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20
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Karzai F, Madan RA. Deciphering the enigma of neuroendocrine prostate cancer. J Clin Invest 2022; 132:e164611. [PMID: 36317631 PMCID: PMC9621125 DOI: 10.1172/jci164611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Despite the clinical advances in managing metastatic prostate cancer in the last 20 years, treatments for patients with metastatic disease only offer a brief respite from disease progression, especially after first-line therapies. Research into treatment resistance has defined a subset of patients with neuroendocrine differentiation of their prostate adenocarcinoma. Although neuroendocrine findings in conjunction with prostate adenocarcinoma can be seen in pathology samples at all stages of disease, the neuroendocrine variant of prostate cancer associated with poor outcomes occurs in approximately 20% of men with advanced disease. In this issue of JCI, Zhao, Sperger, and colleagues present data for a promising biomarker platform that can detect neuroendocrine prostate cancer after serial sampling of patients' blood with a high degree of sensitivity and specificity. This assay will be tested in several current and future trials to better define its potential clinical role and perhaps provide a greater understanding of neuroendocrine prostate cancer itself.
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21
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Madan RA, Mena E, Lindenberg L, Choyke PL. With New Technology Comes Great Responsibility: Prostate-Specific Membrane Antigen Imaging in Recurrent Prostate Cancer. J Clin Oncol 2022; 40:3015-3019. [PMID: 35658513 PMCID: PMC9851688 DOI: 10.1200/jco.22.00493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/28/2022] [Accepted: 04/27/2022] [Indexed: 01/22/2023] Open
Affiliation(s)
- Ravi A. Madan
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD
| | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD
| | - Peter L. Choyke
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD
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22
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Schmidt KT, Karzai F, Bilusic M, Cordes LM, Chau CH, Peer CJ, Wroblewski S, Huitema ADR, Schellens JHM, Gulley JL, Dahut WL, Figg WD, Madan RA. A Single-arm Phase II Study Combining NLG207, a Nanoparticle Camptothecin, with Enzalutamide in Advanced Metastatic Castration-resistant Prostate Cancer Post-Enzalutamide. Oncologist 2022; 27:718-e694. [PMID: 35640474 PMCID: PMC9438911 DOI: 10.1093/oncolo/oyac100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/06/2022] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Despite the clinical efficacy of enzalutamide monotherapy in patients with advanced prostate cancer, therapeutic resistance and disease progression are inevitable. We proposed a study to evaluate NLG207, a nanoparticle-drug conjugate (NDC) of the potent topoisomerase I inhibitor camptothecin, in combination with enzalutamide, in patients with metastatic castration-resistant prostate cancer (mCRPC) following progression on enzalutamide. METHODS This was a single-arm, optimal two-stage, phase II study to evaluate the efficacy of NLG207 in combination with enzalutamide in patients with mCRPC who received prior enzalutamide. A lead-in dose escalation evaluated the recommended phase 2 dose of NLG207 in combination with enzalutamide. Patients received NLG207 via IV infusion every 2 weeks and enzalutamide 160 mg orally once daily. RESULTS Between March 2019 and June 2021, four patients were accrued to the lead-in dose escalation. Two of the four patients were evaluable and both experienced DLTs at the NLG207 12 mg/m2 dose level; one DLT was related to a dose delay for noninfective cystitis and myelosuppression, the other a grade 3 noninfective cystitis. Further evaluation of NLG207 in combination with enzalutamide was halted and the study was ultimately terminated. PSA declines from baseline were observed in two patients. CONCLUSION NLG207 12 mg/m2 in combination with enzalutamide was not well tolerated in patients with mCRPC following several lines of the standard of care therapy. CLINICALTRIALS.GOV IDENTIFIER NCT03531827.
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Affiliation(s)
- Keith T Schmidt
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Cindy H Chau
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Cody J Peer
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Susan Wroblewski
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Alwin D R Huitema
- Department Pharmacy & Pharmacology, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jan H M Schellens
- Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William D Figg
- Corresponding author: William D. Figg, 9000 Rockville Pike, Building 10/Room 5A03, Bethesda, MD 20892, USA. Tel: +1 240 760 6179;
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23
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Abstract
INTRODUCTION Despite FDA approval of sipuleucel-T in 2010, endeavors to use immune checkpoint inhibitors in unselected prostate cancer patients have not improved clinical outcomes. These efforts include studies with anti-PD1/PD-L1 and anti-CTLA-4 alone and in combination with existing standards of care. These strategies are generally T-cell centric and disregard the broader complex and pleiotropic components of the prostate cancer tumor microenvironment such as natural killer cells, myeloid-derived suppressor cells and tumor associated macrophages. AREAS COVERED We performed an online literature search and undertook a review of existing pre-clinical and clinical literature for cytokine-based therapy relating to prostate cancer, specifically on interleukin (IL)-2, IL-15, IL-12, IL-23, IL-8 and transforming growth factor (TGF)-β. EXPERT OPINION Cytokine-based therapies present an alternative immune strategy to target the pleiotropic prostate cancer tumor microenvironment beyond T-cells. Future immunotherapy strategies in prostate cancer should address these immune cell populations which may play more important roles in the prostate cancer tumor microenvironment.
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Affiliation(s)
- Elias Chandran
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Luke Meininger
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Chen MS, Lee RJ, Madan RA, Ta Park V, Shinagawa SM, Sun T, Gomez SL. Charting a Path Towards Asian American Cancer Health Equity: A Way Forward. J Natl Cancer Inst 2022; 114:792-799. [PMID: 35437573 PMCID: PMC9194616 DOI: 10.1093/jnci/djac055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/17/2022] [Accepted: 02/24/2022] [Indexed: 12/30/2022] Open
Abstract
On July 29, 2021, the US Food and Drug Administration’s Oncology Center of Excellence convened Conversations on Cancer. This Conversation, the first ever by the US Food and Drug Administration, focused on Asian Americans and served as the platform for this Commentary. Panelists elaborated on topics ranging from heterogeneity in Asian American demographics to racism through a path to health equity and supplemented this Commentary with literature citations. Asian Americans are the fastest-growing US race group, yet data aggregation obscures distinctions and cancer disparities within the more than 24 million Asians living in the United States with harmful impacts on communities and patients, as illustrated by breast cancer survivor Susan Shinagawa’s patient-to-advocate journey. Bigotry against Asian Americans has been pervasive since the 19th century, but especially during the COVID-19 pandemic. Asian Americans are unique as the first US population to experience cancer as the leading cause of death. Asian Americans are disproportionately affected by cancers because of infectious origins and have the highest rates of lung cancer among never-smoking women. The infinitesimal proportion of the National Institutes of Health’s budget compared with experiencing the highest percentage increases of any US racial population more than 3 decades highlights the dearth of focused research among Asian Americans. Recognizing the heterogeneity of Asian Americans and that disaggregated data are critical for accurately characterizing distinct ethnic groups, focusing on the impact of racism and COVID-19 on cancer disparities, and focusing and prioritizing funding resources are necessary steps forward for achieving health equity for Asian Americans.
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Affiliation(s)
- Moon S Chen
- Department of Internal Medicine, UC Davis School of Medicine, Sacramento, CA, USA
| | - Richard J Lee
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Van Ta Park
- Department of Community Health Systems, School of Nursing, University of California, San Francisco, CA, USA
| | - Susan M Shinagawa
- Asian and Pacific Islander National Cancer Survivors Network, Spring Valley, CA, USA
| | - Tracy Sun
- Asian and Pacific Islander American Health Forum, Washington, DC, USA
| | - Scarlett L Gomez
- Department of Epidemiology and Biostatistics, UC San Francisco School of Medicine and the Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
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Bilusic M, Toney NJ, Donahue RN, Wroblewski S, Zibelman M, Ghatalia P, Ross EA, Karzai F, Madan RA, Dahut WL, Gulley JL, Schlom J, Plimack ER, Geynisman DM. A randomized phase 2 study of bicalutamide with or without metformin for biochemical recurrence in overweight or obese prostate cancer patients (BIMET-1). Prostate Cancer Prostatic Dis 2022; 25:735-740. [PMID: 35079115 PMCID: PMC9309187 DOI: 10.1038/s41391-022-00492-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/17/2021] [Accepted: 01/11/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Metformin may have anticancer effects that are independent of its hypoglycemic effects. Retrospective studies have shown that metformin use is associated with decreased incidence of prostate cancer and prostate cancer-specific mortality. Preclinical studies suggesting additive anticancer effects of combining metformin and bicalutamide prompted this clinical trial (NCT02614859). METHODS This open-label, randomized, phase 2 trial enrolled non-diabetic patients with biochemically recurrent prostate cancer, a PSADT of 3-9 months, BMI > 25 and normal testosterone. Patients were randomized 1:2 to observation for an initial 8 weeks (Arm A) or metformin 1000 mg twice daily (Arm B). Bicalutamide 50 mg/day was added after 8 weeks to both arms. The primary objective was to evaluate the number of patients with undetectable PSA ( < 0.2 ng/mL) at the end of 32 weeks. Immune correlatives were assessed as exploratory endpoints. RESULTS A total of 29 patients were enrolled from March 2015 to January 2020. No difference was seen between the 2 arms in the proportion of patients with undetectable PSA. Modest PSA decrease ranging from 4% to 24% were seen in 40.0% (95% CI: 19.1-64.0%) of patients with metformin monotherapy, compared to 11.1% (95% CI: 0.3-48.3%) in the observation arm. Metformin monotherapy reduced PD-1+ NK cells, and increased NKG2D+ NK cells. The combination of metformin and bicalutamide led to greater reductions in PD-1 expressing NK, CD4+ T, and CD8+ T-cell subsets compared to bicalutamide alone. The trial was stopped early due to predicted inability to achieve its primary endpoint. CONCLUSIONS Although metformin plus bicalutamide was well tolerated, there was no improvement in rates of achieving undetectable PSA at 32 weeks. Metformin monotherapy induced modest PSA declines in 40% of patients after 8 weeks. Metformin, given alone and in combination with bicalutamide, displayed immune modifying effects, primarily within NK and T cells subsets. TRIAL REGISTRATION Trial Registration Number: NCT02614859.
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Affiliation(s)
- Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
- Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, FL, 33136, USA.
| | - Nicole J Toney
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Susan Wroblewski
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Matthew Zibelman
- Department of Hematology Oncology, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - Pooja Ghatalia
- Department of Hematology Oncology, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - Eric A Ross
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Elizabeth R Plimack
- Department of Hematology Oncology, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - Daniel M Geynisman
- Department of Hematology Oncology, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
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Strauss J, Gatti-Mays ME, Cho BC, Hill A, Salas S, McClay E, Redman JM, Sater HA, Donahue RN, Jochems C, Lamping E, Burmeister A, Marté JL, Cordes LM, Bilusic M, Karzai F, Ojalvo LS, Jehl G, Rolfe PA, Hinrichs CS, Madan RA, Schlom J, Gulley JL. Bintrafusp alfa, a bifunctional fusion protein targeting TGF-β and PD-L1, in patients with human papillomavirus-associated malignancies. J Immunother Cancer 2021; 8:jitc-2020-001395. [PMID: 33323462 PMCID: PMC7745517 DOI: 10.1136/jitc-2020-001395] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Bintrafusp alfa is a first-in-class bifunctional fusion protein composed of the extracellular domain of transforming growth factor (TGF)-βRII (a TGF-β 'trap') fused to a human IgG1 mAb blocking programmed cell death ligand 1. This is the largest analysis of patients with advanced, pretreated human papillomavirus (HPV)-associated malignancies treated with bintrafusp alfa. METHODS In these phase 1 (NCT02517398) and phase 2 trials (NCT03427411), 59 patients with advanced, pretreated, checkpoint inhibitor-naive HPV-associated cancers received bintrafusp alfa intravenously every 2 weeks until progressive disease, unacceptable toxicity, or withdrawal. Primary endpoint was best overall response per Response Evaluation Criteria in Solid Tumors (RECIST) V.1.1; other endpoints included safety. RESULTS As of April 17, 2019 (phase 1), and October 4, 2019 (phase 2), the confirmed objective response rate per RECIST V.1.1 in the checkpoint inhibitor-naive, full-analysis population was 30.5% (95% CI, 19.2% to 43.9%; five complete responses); eight patients had stable disease (disease control rate, 44.1% (95% CI, 31.2% to 57.6%)). In addition, three patients experienced a delayed partial response after initial disease progression, for a total clinical response rate of 35.6% (95% CI, 23.6% to 49.1%). An additional patient with vulvar cancer had an unconfirmed response. Forty-nine patients (83.1%) experienced treatment-related adverse events, which were grade 3/4 in 16 patients (27.1%). No treatment-related deaths occurred. CONCLUSION Bintrafusp alfa showed clinical activity and manageable safety and is a promising treatment in HPV-associated cancers. These findings support further investigation of bintrafusp alfa in patients with advanced, pretreated HPV-associated cancers.
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Affiliation(s)
- Julius Strauss
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Margaret E Gatti-Mays
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Byoung Chul Cho
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Andrew Hill
- Tasman Oncology Research Ltd, Southport, Queensland, Australia
| | - Sébastien Salas
- CEPCM Assistance Publique des Hôpitaux de Marseille; Aix-Marseille Université, Marseille, France
| | - Edward McClay
- California Cancer Associates for Research and Excellence, Encinitas, California, USA
| | - Jason M Redman
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Houssein A Sater
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Caroline Jochems
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Elizabeth Lamping
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Andrea Burmeister
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.,Leidos Biomedical Research, Frederick, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Laureen S Ojalvo
- EMD Serono Research & Development Institute, Inc, Billerica, Massachusetts, USA; an affiliate of Merck KGaA, Darmstadt, Germany
| | | | - P Alexander Rolfe
- EMD Serono Research & Development Institute, Inc, Billerica, Massachusetts, USA; an affiliate of Merck KGaA, Darmstadt, Germany
| | - Christian S Hinrichs
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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DeMaria PJ, Lee-Wisdom K, Donahue RN, Madan RA, Karzai F, Schwab A, Palena C, Jochems C, Floudas C, Strauss J, Marté JL, Redman JM, Dombi E, Widemann B, Korchin B, Adams T, Pico-Navarro C, Heery C, Schlom J, Gulley JL, Bilusic M. Phase 1 open-label trial of intravenous administration of MVA-BN-brachyury-TRICOM vaccine in patients with advanced cancer. J Immunother Cancer 2021; 9:jitc-2021-003238. [PMID: 34479925 PMCID: PMC8420671 DOI: 10.1136/jitc-2021-003238] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2021] [Indexed: 01/06/2023] Open
Abstract
Background MVA-BN-brachyury-TRICOM is a recombinant vector-based therapeutic cancer vaccine designed to induce an immune response against brachyury. Brachyury, a transcription factor overexpressed in advanced cancers, has been associated with treatment resistance, epithelial-to-mesenchymal transition, and metastatic potential. MVA-BN-brachyury-TRICOM has demonstrated immunogenicity and safety in previous clinical trials of subcutaneously administered vaccine. Preclinical studies have suggested that intravenous administration of therapeutic vaccines can induce superior CD8+ T cell responses, higher levels of systemic cytokine release, and stronger natural killer cell activation and proliferation. This is the first-in-human study of the intravenous administration of MVA-BN-brachyury-TRICOM. Methods Between January 2020 and March 2021, 13 patients were treated on a phase 1, open-label, 3+3 design, dose-escalation study at the National Institutes of Health Clinical Center. The study population was adults with advanced solid tumors and was enriched for chordoma, a rare sarcoma of the notochord that overexpresses brachyury. Vaccine was administered intravenously at three DLs on days 1, 22, and 43. Blood samples were taken to assess drug pharmacokinetics and immune activation. Imaging was conducted at baseline, 1 month, and 3 months post-treatment. The primary endpoint was safety and tolerability as determined by the frequency of dose-limiting toxicities; a secondary endpoint was determination of the recommended phase 2 dose. Results No dose-limiting toxicities were observed and no serious adverse events were attributed to the vaccine. Vaccine-related toxicities were consistent with class profile (ie, influenza-like symptoms). Cytokine release syndrome up to grade 2 was observed with no adverse outcomes. Dose-effect trend was observed for fever, chills/rigor, and hypotension. Efficacy analysis of objective response rate per RECIST 1.1 at the end of study showed one patient with a partial response, four with stable disease, and eight with progressive disease. Three patients with stable disease experienced clinical benefit in the form of improvement in pain. Immune correlatives showed T cell activation against brachyury and other tumor-associated cascade antigens. Conclusions Intravenous administration of MVA-BN-brachyury-TRICOM vaccine was safe and tolerable. Maximum tolerated dose was not reached. The maximum administered dose was 109 infectious units every 3 weeks for three doses. This dose was selected as the recommended phase 2 dose. Trial registration number NCT04134312.
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Affiliation(s)
- Peter J DeMaria
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Katherine Lee-Wisdom
- Medical Oncology Service, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Angie Schwab
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Claudia Palena
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Caroline Jochems
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Charalampos Floudas
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Julius Strauss
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jason Mark Redman
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Eva Dombi
- Pediatric Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Brigitte Widemann
- Pediatric Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Borys Korchin
- Oncology Strategy, Bavarian Nordic Inc, Morrisville, North Carolina, USA
| | | | - Cesar Pico-Navarro
- Oncology Strategy, Bavarian Nordic Inc, Morrisville, North Carolina, USA
| | | | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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Fourquet A, Rosenberg A, Mena E, Shih JJ, Turkbey B, Blain M, Bergvall E, Lin FI, Adler S, Lim I, Madan RA, Karzai F, Gulley JL, Dahut WL, Wood BJ, Chang R, Levy E, Choyke PL, Lindenberg L. A comparison of 18F-DCFPyL, 18F-NaF and 18F-FDG PET/CT in a prospective cohort of men with metastatic prostate cancer. J Nucl Med 2021; 63:735-741. [PMID: 34475237 DOI: 10.2967/jnumed.121.262371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/05/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction: 18F-DCFPyL, 18F-NaF and 18F-FDG PET/CT were compared in a prospective cohort of men with metastatic prostate cancer (PCa). Materials and Methods: 67 men (Group 1) with documented metastatic PCa underwent 18F-DCFPyL and 18F-NaF PET/CT and a subgroup of 30 men (Group 2) underwent additional imaging with 18F-FDG PET/CT. The tracers were compared for their detection rates, imaging concordance, associations with Prostate Specific Antigen (PSA), treatment at the time of imaging and castration status. Results: Overall, 61 men had metastatic disease detected on one or more scans, while 6 men were negative. In Group 1, 18F-NaF detected significantly more metastatic lesions than 18F-DCFPyL (median of 3 lesions versus 2, P = 0.001) even after eliminating benign causes of 18F-NaF uptake. This difference was particularly clear for men receiving treatment (P = 0.005) or who were castrate resistant (P = 0.014). The median percentage of bone lesions that were concordant on 18F-DCFPyL and 18F-NaF was 50%. In Group 2, 18F-DCFPyL detected more lesions than 18F-FDG (median of 5 lesions versus 2, P = 0.0003), regardless of PSA level, castration status or treatment. The median percentage of lesions that were concordant on 18F-DCFPyL and 18F-FDG was 22.2%. This percentage was slightly higher for castrate-resistant than castrate-sensitive men (P = 0.048). Conclusion: 18F-DCFPyL PET/CT is the most versatile of the three PET agents for metastatic PCa however, 18F-NaF detects more bone metastases. Imaging reveals substantial tumor heterogeneity with only 50% concordance between 18F-DCFPyL and 18F-NaF and 22% concordance for 18F-DCFPyL and 18F-FDG. This indicates considerable phenotypic differences among metastatic lesions.
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Affiliation(s)
| | | | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, NIH
| | - Joanna J Shih
- Division of Cancer treatment and Diagnosis : Biometric Research Program, National Cancer Institute, NIH
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, NIH
| | - Maxime Blain
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Cancer Institute, NIH
| | - Ethan Bergvall
- Molecular Imaging Branch, National Cancer Institute, NIH
| | - Frank I Lin
- Molecular Imaging Branch, National Cancer Institute, NIH
| | - Stephen Adler
- Clinical Research Directorate, Frederick National Laboratory for Cancer Research
| | - Ilhan Lim
- Department of Nuclear Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, NIH
| | - Fatima Karzai
- Genitourinary Malignancies Branch, National Cancer Institute, NIH
| | - James L Gulley
- Genitourinary Malignancies Branch, National Cancer Institute, NIH
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, NIH
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Cancer Institute, NIH
| | - Richard Chang
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Cancer Institute, NIH
| | - Elliot Levy
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Cancer Institute, NIH
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, NIH
| | - Liza Lindenberg
- 1.Molecular Imaging Branch, National Cancer Institute, NIH 2 .F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, United States
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Cordes LM, Schmidt KT, Peer CJ, Chau CH, Redmond E, Francis D, Karzai F, Madan RA, Figg WD. Study to Compare Capsule and Liquid Formulations of Enzalutamide After Single-Dose Administration Under Fasting Conditions in Prostate Cancer. Oncologist 2021; 26:729-e1493. [PMID: 34333820 DOI: 10.1002/onco.13919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/26/2021] [Indexed: 11/07/2022] Open
Abstract
LESSONS LEARNED Limited evidence suggests an acceptable pharmacokinetic profile when enzalutamide is administered via a liquid formulation extracted from the commercially available liquid-filled soft-gelatin capsules. Tolerability may limit use in clinical practice. BACKGROUND Enzalutamide is an established standard-of-care treatment for advanced prostate cancer with a commercially available formulation that may be inconvenient for some patients. We proposed a study to evaluate the bioequivalence of a liquid formulation to provide an alternative method of administration. METHODS This was a single-dose, randomized, open-label, two-way crossover pilot bioequivalence study to compare two oral formulations of enzalutamide: four enzalutamide 40 mg liquid-filled soft-gelatin capsules (commercially available) administered whole versus enzalutamide 160 mg liquid (extracted from capsules) administered via oral syringe. To assess bioequivalence, patients were randomized to receive a single dose of one formulation, then cross over to receive the alternative formulation following a 42-day washout period; serial plasma samples were collected over the course of 24 hours, followed by collections at 3, 8, and 42 days after the dose for both formulations. Bioequivalence of the formulations was assessed via comparisons of area under the plasma concentration-time curve (AUC) calculations per U.S. Food and Drug Administration (FDA) guidance. The study also assessed the safety and tolerability of the formulations. RESULTS The study failed to meet proposed accrual, with only one patient enrolled, thus limiting the bioequivalence evaluation. Based on the data from a single patient, the drug exposure (measured by AUC) of enzalutamide and N-desmethyl enzalutamide (primary active metabolite) for the liquid formulation was 112% and 117%, respectively, compared with the capsule formulation. Although both formulations appeared well tolerated with no adverse events reported, the tolerability assessment questionnaire revealed an unpleasant taste of the liquid formulation. CONCLUSION Preliminary evidence suggests a similar pharmacokinetic profile when administering liquid extracted from enzalutamide soft-gelatin capsules compared with intact capsules in patients with prostate cancer.
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Affiliation(s)
- Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
- Office of Clinical Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Keith T Schmidt
- Clinical Pharmacology Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Cody J Peer
- Clinical Pharmacology Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Cindy H Chau
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Erica Redmond
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Deneise Francis
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
| | - William D Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, Maryland, USA
- Clinical Pharmacology Program, National Institutes of Health, Bethesda, Maryland, USA
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Affiliation(s)
- Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Claudia Palena
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Abdul Sater H, Marté JL, Donahue RN, Walter-Rodriguez B, Heery CR, Steinberg SM, Cordes LM, Chun G, Karzai F, Bilusic M, Harmon SA, Turkbey IB, Choyke PL, Schlom J, Dahut WL, Madan RA, Pinto PA, Gulley JL. Neoadjuvant PROSTVAC prior to radical prostatectomy enhances T-cell infiltration into the tumor immune microenvironment in men with prostate cancer. J Immunother Cancer 2021; 8:jitc-2020-000655. [PMID: 32269146 PMCID: PMC7174144 DOI: 10.1136/jitc-2020-000655] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2020] [Indexed: 02/07/2023] Open
Abstract
Background Clinical trials have shown the ability of therapeutic vaccines to generate immune responses to tumor-associated antigens (TAAs). What is relatively less known is if this translates into immune-cell (IC) infiltration into the tumor microenvironment. This study examined whether neoadjuvant prostate-specific antigen (PSA)-targeted vaccination with PROSTVAC could induce T-cell immunity, particularly at the tumor site. Methods An open-label, phase II study of neoadjuvant PROSTVAC vaccine enrolled 27 patients with localized prostate cancer awaiting radical prostatectomy (RP). We evaluated increases in CD4 and CD8 T-cell infiltrates (RP tissue vs baseline biopsies) using a six-color multiplex immunofluorescence Opal method. Antigen-specific responses were assessed by intracellular cytokine staining after in vitro stimulation of peripheral blood mononuclear cells with overlapping 15-mer peptide pools encoding the TAAs PSA, brachyury and MUC-1. Results Of 27 vaccinated patients, 26 had matched prevaccination (biopsy) and postvaccination (RP) prostate samples available for non-compartmentalized analysis (NCA) and compartmentalized analysis (CA). Tumor CD4 T-cell infiltrates were significantly increased in postvaccination RP specimens compared with baseline biopsies by NCA (median 176/mm² vs 152/mm²; IQR 136–317/mm² vs 69–284/mm²; p=0.0249; median ratio 1.20; IQR 0.64–2.25). By CA, an increase in both CD4 T-cell infiltrates at the tumor infiltrative margin (median 198/mm² vs 151/mm²; IQR 123–500/mm² vs 85–256/mm²; p=0.042; median ratio 1.44; IQR 0.59–4.17) and in CD8 T-cell infiltrates at the tumor core (median 140/mm² vs 105/mm²; IQR 91–175/mm² vs 83–163/mm²; p=0.036; median ratio 1.25; IQR 0.88–2.09) were noted in postvaccination RP specimens compared with baseline biopsies. A total of 13/25 patients (52%) developed peripheral T-cell responses to any of the three tested TAAs (non-neoantigens); five of these had responses to more than one antigen of the three evaluated. Conclusion Neoadjuvant PROSTVAC can induce both tumor immune response and peripheral immune response. Trial registration number NCT02153918.
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Affiliation(s)
- Houssein Abdul Sater
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Beatriz Walter-Rodriguez
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Seth M Steinberg
- Biostatistics and Data Management Section, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Guinevere Chun
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Stephanie A Harmon
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.,Clinical Research Directorate, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, Maryland, USA
| | - Ismail Baris Turkbey
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Peter L Choyke
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Peter A Pinto
- Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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Chau V, Madan RA, Bilusic M, Owens H, Cordes LM, Marte JL, Gulley JL, Lee JM, Dahut WL, Karzai F. Anaplastic Features in Advanced Prostate Cancer With and Without DNA Damage Repair Mutations. Clin Genitourin Cancer 2021; 19:e352-e359. [PMID: 34116956 DOI: 10.1016/j.clgc.2021.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/15/2021] [Accepted: 05/03/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Anaplastic prostate cancer has a poor prognosis with limited treatment options. Seven clinical features of anaplastic prostate cancer have been prospectively identified. In this phase II clinical trial, we identified mutations, including DNA damage repair (DDR) mutations, in patients with metastatic castration-resistant prostate cancer (mCRPC) who were treated with durvalumab and olaparib and determined how many of them can be described as anaplastic, and we examined the overlap between anaplastic features and DDR mutations. METHODS Eligible patients with mCRPC received prior enzalutamide, abiraterone, or both. Patients were treated with durvalumab 1500 mg i.v. every 28 days and olaparib 300 mg p.o. every 12 hours until disease progression or unacceptable toxicity. Patients underwent mandatory baseline biopsies of metastatic lesions. RESULTS Baseline characteristics were similar between anaplastic and nonanaplastic patients. Eleven patients (20%) displayed clear anaplastic features, and 43 (78.2%) lacked anaplastic features. In the anaplastic group, 2/11 (18.2%) had germline DRR mutations, and 4/11 (36.3%) had somatic DDR mutations. In the nonanaplastic group, 7/43 (16.3%) had germline mutations, and 13/43 (30.2%) had somatic mutations. Median progression-free survival (PFS) times in patients with anaplastic features (6.5 months) and without anaplastic features (5.1 months) were similar (hazard ratio 0.998, P = .996). CONCLUSIONS Patients with and without anaplastic features appear to have similar total rates of DDR mutations and also similar rates of somatic and germline DDR mutations. Patients with anaplastic features have a trend toward improved PFS when treated with olaparib and durvalumab compared with nonanaplastic patients.
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Affiliation(s)
- Vincent Chau
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Helen Owens
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Jennifer L Marte
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Jung-Min Lee
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD.
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Abstract
INTRODUCTION Protein kinases have emerged as targetable pathways used in metastatic prostate cancer given their role in prostatic tumor growth, proliferation and metastases. Protein kinase inhibitors are small molecules that target varying pathways including the breakpoint cluster region (BCR)-Abelson tyrosine kinase (ABL), colony stimulating factor-1 receptor (CSF1R), vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR) and phosphoinositide 3-kinase (PI3K) pathways and have been studied in prostate cancer trials with variable results. In particular, cabozantinib when used in combination trials and ipatasertib, when used with abiraterone in patients who harbor phosphatase and tensin homologue (PTEN) loss, have been promising. AREAS COVERED This article reviews the key early and late phase clinical trials currently investigating the use of protein kinase inhibitors in prostate cancer. EXPERT OPINION While multiple kinase inhibitors show promising results in prostate cancer, none have yet garnered Food and Drug Administration (FDA) approval. Studies are ongoing with the best candidate drugs discussed herein. However, multiple drugs have failed primary endpoints in prostate cancer. Therefore, further understanding of the potential mechanisms of resistance, combination and trial design of combination therapy may help pave the way for targeting kinase inhibition in prostate cancer.
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Affiliation(s)
- Vincent Chau
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jeanny B Aragon-Ching
- Genitourinary Cancers, Inova Medical Group, Inova Schar Cancer Institute, Fairfax, VA, USA.,Department of Internal Medicine, University of Virginia University School of Medicine, Charlottesville, VA, USA
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DeMaria PJ, Bilusic M, Park DM, Heery CR, Donahue RN, Madan RA, Bagheri MH, Strauss J, Shen V, Marté JL, Steinberg SM, Schlom J, Gilbert MR, Gulley JL. Randomized, Double-Blind, Placebo-Controlled Phase II Study of Yeast-Brachyury Vaccine (GI-6301) in Combination with Standard-of-Care Radiotherapy in Locally Advanced, Unresectable Chordoma. Oncologist 2021; 26:e847-e858. [PMID: 33594772 PMCID: PMC8100546 DOI: 10.1002/onco.13720] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/05/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Brachyury is a transcription factor overexpressed in chordoma and is associated with chemotherapy resistance and epithelial-to-mesenchymal transition. GI-6301 is a recombinant, heat-killed Saccharomyces cerevisiae yeast-based vaccine targeting brachyury. A previous phase I trial of GI-6301 demonstrated a signal of clinical activity in chordomas. This trial evaluated synergistic effects of GI-6301 vaccine plus radiation. MATERIALS AND METHODS Adults with locally advanced, unresectable chordoma were treated on a randomized, placebo-controlled trial. Patients received three doses of GI-6301 (80 × 107 yeast cells) or placebo followed by radiation, followed by continued vaccine or placebo until progression. Primary endpoint was overall response rate, defined as a complete response (CR) or partial response (PR) in the irradiated tumor site at 24 months. Immune assays were conducted to evaluate immunogenicity. RESULTS Between May 2015 and September 2019, 24 patients enrolled on the first randomized phase II study in chordoma. There was one PR in each arm; no CRs were observed. Median progressive-free survival for vaccine and placebo arms was 20.6 months (95% confidence interval [CI], 5.7-37.5 months) and 25.9 months (95% CI, 9.2-30.8 months), respectively. Hazard ratio was 1.02 (95% CI, 0.38-2.71). Vaccine was well tolerated with no vaccine-related serious adverse events. Preexisting brachyury-specific T cells were detected in most patients in both arms. Most patients developed T-cell responses during therapy, with no difference between arms in frequency or magnitude of response. CONCLUSION No difference in overall response rate was observed, leading to early discontinuation of this trial due to low conditional power to detect statistical difference at the planned end of accrual. IMPLICATIONS FOR PRACTICE Chordoma is a rare neoplasm lacking effective systemic therapies for advanced, unresectable disease. Lack of clinically actionable somatic mutations in chordoma makes development of targeted therapy quite challenging. While the combination of yeast-brachyury vaccine (GI-6301) and standard radiation therapy did not demonstrate synergistic antitumor effects, brachyury still remains a good target for developmental therapeutics in chordoma. Patients and their oncologists should consider early referral to centers with expertise in chordoma (or sarcoma) and encourage participation in clinical trials.
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Affiliation(s)
- Peter Joseph DeMaria
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Deric M Park
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- University of Chicago, Chicago, Illinois, USA
| | - Christopher R Heery
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- Precision Biosciences, Durham, North Carolina, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Mohammad Hadi Bagheri
- Clinical Image Processing Service, National Institutes of Health, Bethesda, Maryland, USA
| | - Julius Strauss
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Victoria Shen
- Clinical Image Processing Service, National Institutes of Health, Bethesda, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Seth M Steinberg
- Biostatistics and Data Management Section, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Mark R Gilbert
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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Masoudi S, Mehralivand S, Harmon SA, Lay N, Lindenberg L, Mena E, Pinto PA, Citrin DE, Gulley JL, Wood BJ, Dahut WL, Madan RA, Bagci U, Choyke PL, Turkbey B. Deep Learning Based Staging of Bone Lesions From Computed Tomography Scans. IEEE Access 2021; 9:87531-87542. [PMID: 34733603 PMCID: PMC8562651 DOI: 10.1109/access.2021.3074051] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In this study, we formulated an efficient deep learning-based classification strategy for characterizing metastatic bone lesions using computed tomography scans (CTs) of prostate cancer patients. For this purpose, 2,880 annotated bone lesions from CT scans of 114 patients diagnosed with prostate cancer were used for training, validation, and final evaluation. These annotations were in the form of lesion full segmentation, lesion type and labels of either benign or malignant. In this work, we present our approach in developing the state-of-the-art model to classify bone lesions as benign or malignant, where (1) we introduce a valuable dataset to address a clinically important problem, (2) we increase the reliability of our model by patient-level stratification of our dataset following lesion-aware distribution at each of the training, validation, and test splits, (3) we explore the impact of lesion texture, morphology, size, location, and volumetric information on the classification performance, (4) we investigate the functionality of lesion classification using different algorithms including lesion-based average 2D ResNet-50, lesion-based average 2D ResNeXt-50, 3D ResNet-18, 3D ResNet-50, as well as the ensemble of 2D ResNet-50 and 3D ResNet-18. For this purpose, we employed a train/validation/test split equal to 75%/12%/13% with several data augmentation methods applied to the training dataset to avoid overfitting and to increase reliability. We achieved an accuracy of 92.2% for correct classification of benign vs. malignant bone lesions in the test set using an ensemble of lesion-based average 2D ResNet-50 and 3D ResNet-18 with texture, volumetric information, and morphology having the greatest discriminative power respectively. To the best of our knowledge, this is the highest ever achieved lesion-level accuracy having a very comprehensive data set for such a clinically important problem. This level of classification performance in the early stages of metastasis development bodes well for clinical translation of this strategy.
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Affiliation(s)
- Samira Masoudi
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sherif Mehralivand
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Stephanie A Harmon
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nathan Lay
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Peter A Pinto
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Deborah E Citrin
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - James L Gulley
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Bradford J Wood
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - William L Dahut
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ravi A Madan
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ulas Bagci
- Department of Radiology, Northwestern University, Chicago, IL 60611, USA
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Wilkinson S, Ye H, Karzai F, Harmon SA, Terrigino NT, VanderWeele DJ, Bright JR, Atway R, Trostel SY, Carrabba NV, Whitlock NC, Walker SM, Lis RT, Abdul Sater H, Capaldo BJ, Madan RA, Gulley JL, Chun G, Merino MJ, Pinto PA, Salles DC, Kaur HB, Lotan TL, Venzon DJ, Choyke PL, Turkbey B, Dahut WL, Sowalsky AG. Nascent Prostate Cancer Heterogeneity Drives Evolution and Resistance to Intense Hormonal Therapy. Eur Urol 2021; 80:746-757. [PMID: 33785256 DOI: 10.1016/j.eururo.2021.03.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/11/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Patients diagnosed with high risk localized prostate cancer have variable outcomes following surgery. Trials of intense neoadjuvant androgen deprivation therapy (NADT) have shown lower rates of recurrence among patients with minimal residual disease after treatment. The molecular features that distinguish exceptional responders from poor responders are not known. OBJECTIVE To identify genomic and histologic features associated with treatment resistance at baseline. DESIGN, SETTING, AND PARTICIPANTS Targeted biopsies were obtained from 37 men with intermediate- to high-risk prostate cancer before receiving 6 mo of ADT plus enzalutamide. Biopsy tissues were used for whole-exome sequencing and immunohistochemistry (IHC). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS We assessed the relationship of molecular features with final pathologic response using a cutpoint of 0.05 cm3 for residual cancer burden to compare exceptional responders to incomplete and nonresponders. We assessed intratumoral heterogeneity at the tissue and genomic level, and compared the volume of residual disease to the Shannon diversity index for each tumor. We generated multivariate models of resistance based on three molecular features and one histologic feature, with and without multiparametric magnetic resonance imaging estimates of baseline tumor volume. RESULTS AND LIMITATIONS Loss of chromosome 10q (containing PTEN) and alterations to TP53 were predictive of poor response, as were the expression of nuclear ERG on IHC and the presence of intraductal carcinoma of the prostate. Patients with incompletely and nonresponding tumors harbored greater tumor diversity as estimated via phylogenetic tree reconstruction from DNA sequencing and analysis of IHC staining. Our four-factor binary model (area under the receiver operating characteristic curve [AUC] 0.89) to predict poor response correlated with greater diversity in our cohort and a validation cohort of 57 Gleason score 8-10 prostate cancers from The Cancer Genome Atlas. When baseline tumor volume was added to the model, it distinguished poor response to NADT with an AUC of 0.98. Prospective use of this model requires further retrospective validation with biopsies from additional trials. CONCLUSIONS A subset of prostate cancers exhibit greater histologic and genomic diversity at the time of diagnosis, and these localized tumors have greater fitness to resist therapy. PATIENT SUMMARY Some prostate cancer tumors do not respond well to a hormonal treatment called androgen deprivation therapy (ADT). We used tumor volume and four other parameters to develop a model to identify tumors that will not respond well to ADT. Treatments other than ADT should be considered for these patients.
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Affiliation(s)
- Scott Wilkinson
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - Huihui Ye
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA, USA; Department of Pathology and Department of Urology, University of California-Los Angeles, Los Angeles, CA, USA
| | - Fatima Karzai
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD, USA
| | - Stephanie A Harmon
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD, USA; Clinical Research Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Nicholas T Terrigino
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - David J VanderWeele
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA; Department of Medicine, Feinberg School of Medicine, Chicago, IL, USA
| | - John R Bright
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - Rayann Atway
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - Shana Y Trostel
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - Nicole V Carrabba
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - Nichelle C Whitlock
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | | | - Rosina T Lis
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | | | - Brian J Capaldo
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD, USA
| | - Guinevere Chun
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD, USA
| | - Maria J Merino
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA
| | - Peter A Pinto
- Urologic Oncology Branch, National Cancer Institute, Bethesda, MD, USA
| | - Daniela C Salles
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Harsimar B Kaur
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Tamara L Lotan
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - David J Venzon
- Biostatistics and Data Management Section, National Cancer Institute, Rockville, MD, USA
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD, USA
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD, USA
| | - Adam G Sowalsky
- Laboratory of Genitourinary Cancer Pathogenesis, National Cancer Institute, Bethesda, MD, USA.
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Bilusic M, McMahon S, Madan RA, Karzai F, Tsai YT, Donahue RN, Palena C, Jochems C, Marté JL, Floudas C, Strauss J, Redman J, Abdul Sater H, Rabizadeh S, Soon-Shiong P, Schlom J, Gulley JL. Phase I study of a multitargeted recombinant Ad5 PSA/MUC-1/brachyury-based immunotherapy vaccine in patients with metastatic castration-resistant prostate cancer (mCRPC). J Immunother Cancer 2021; 9:jitc-2021-002374. [PMID: 33762322 PMCID: PMC7993215 DOI: 10.1136/jitc-2021-002374] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2021] [Indexed: 02/07/2023] Open
Abstract
Background Antitumor vaccines targeting tumor-associated antigens (TAAs) can generate antitumor immune response. A novel vaccine platform using adenovirus 5 (Ad5) vectors [E1–, E2b–] targeting three TAAs—prostate-specific antigen (PSA), brachyury, and MUC-1—has been developed. Both brachyury and the C-terminus of MUC-1 are overexpressed in metastatic castration-resistant prostate cancer (mCRPC) and have been shown to play an important role in resistance to chemotherapy, epithelial–mesenchymal transition, and metastasis. The transgenes for PSA, brachyury, and MUC-1 all contain epitope modifications for the expression of CD8+ T-cell enhancer agonist epitopes. We report here the first-in-human trial of this vaccine platform. Methods Patients with mCRPC were given concurrently three vaccines targeting PSA, brachyury, and MUC-1 at 5×1011 viral particles (VP) each, subcutaneously every 3 weeks for a maximum of three doses (dose de-escalation cohort), followed by a booster vaccine every 8 weeks for 1 year (dose-expansion cohort only). The primary objective was to determine the safety and the recommended phase II dose. Immune assays and clinical responses were evaluated. Results Eighteen patients with mCRPC were enrolled between July 2018 and September 2019 and received at least one vaccination. Median PSA was 25.58 ng/mL (range, 0.65–1006 ng/mL). The vaccine was tolerable and safe, and no grade >3 treatment-related adverse events or dose-limiting toxicities (DLTs) were observed. One patient had a partial response, while five patients had confirmed PSA decline and five had stable disease for >6 months. Median progression-free survival was 22 weeks (95% CI: 19.1 to 34). Seventeen (100%) of 17 patients mounted T-cell responses to at least one TAA, whereras 8 (47%) of 17 patients mounted immune responses to all three TAAs. Multifunctional T-cell responses to PSA, MUC-1, and brachyury were also detected after vaccination in the majority of the patients. Conclusions Ad5 PSA/MUC-1/brachyury vaccine is well tolerated. The primary end points were met and there were no DLTs. The recommended phase II dose is 5×1011 VP. The vaccine demonstrated clinical activity, including one partial response and confirmed PSA responses in five patients. Three patients with prolonged PSA responses received palliative radiation therapy. Further research is needed to evaluate the clinical benefit and immunogenicity of this vaccine in combination with other immuno-oncology agents and/or palliative radiation therapy. Trial registration number NCT03481816.
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Affiliation(s)
- Marijo Bilusic
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Sheri McMahon
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Yo-Ting Tsai
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Claudia Palena
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Caroline Jochems
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Charalampos Floudas
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Julius Strauss
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - Jason Redman
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Houssein Abdul Sater
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
| | | | | | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancy Branch, National Cancer Institute, Bethesda, Maryland, USA
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Lee RJ, Madan RA, Kim J, Posadas EM, Yu EY. Disparities in Cancer Care and the Asian American Population. Oncologist 2021; 26:453-460. [PMID: 33683795 DOI: 10.1002/onco.13748] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/16/2021] [Indexed: 11/09/2022] Open
Abstract
Asian Americans are the only racial/ethnic group in the U.S. for whom cancer is the leading cause of death in men and women, unlike heart disease for all other groups. Asian Americans face a confluence of cancer risks, with high rates of cancers endemic to their countries of origin due to infectious and cultural reasons, as well as increasing rates of "Western" cancers that are due in part to assimilation to the American diet and lifestyle. Despite the clear mortality risk, Asian Americans are screened for cancers at lower rates than the majority of Americans. Solutions to eliminate the disparity in cancer care are complicated by language and cultural concerns of this very heterogeneous group. This review addresses the disparities in cancer screening, the historical causes, the potential contribution of racism, the importance of cultural perceptions of health care, and potential strategies to address a very complicated problem. Noting that the health care disparities faced by Asian Americans may be less conspicuous than the structural racism that has inflicted significant damage to the health of Black Americans over more than four centuries, this review is meant to raise awareness and to compel the medical establishment to recognize the urgent need to eliminate health disparities for all. IMPLICATIONS FOR PRACTICE: Cancer is the leading cause of death in Asian Americans, who face cancers endemic to their native countries, perhaps because of infectious and cultural factors, as well as those faced by all Americans, perhaps because of "Westernization" in terms of diet and lifestyle. Despite the mortality rates, Asian Americans have less cancer screening than other Americans. This review highlights the need to educate Asian Americans to improve cancer literacy and health care providers to understand the important cancer risks of the fastest-growing racial/ethnic group in the U.S. Eliminating disparities is critical to achieving an equitable society for all Americans.
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Affiliation(s)
- Richard J Lee
- Harvard Medical School and Massachusetts General Hospital Cancer Center, Boston, Massachusetts, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jayoung Kim
- Department of Surgery, Cedars-Sinai Medical Center, California, Los Angeles, USA.,Department of Biomedical Sciences, Cedars-Sinai Medical Center, California, Los Angeles, USA.,Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, California, Los Angeles, USA
| | - Edwin M Posadas
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, California, Los Angeles, USA
| | - Evan Y Yu
- University of Washington and Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
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Madan RA, Karzai F, Donahue RN, Al-Harthy M, Bilusic M, Rosner II, Singh H, Arlen PM, Theoret MR, Marté JL, Cordes L, Couvillon A, Hankin A, Williams M, Owens H, Lochrin SE, Chau CH, Steinberg S, Figg WD, Dahut W, Schlom J, Gulley JL. Clinical and immunologic impact of short-course enzalutamide alone and with immunotherapy in non-metastatic castration sensitive prostate cancer. J Immunother Cancer 2021; 9:e001556. [PMID: 33664086 PMCID: PMC7934713 DOI: 10.1136/jitc-2020-001556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The standard treatment for non-metastatic castration sensitive prostate cancer (nmCSPC) is androgen deprivation therapy (ADT) or surveillance. This study evaluated the potential synergy of immunotherapy and enzalutamide (without ADT) in nmCSPC. In addition, the immunologic impact of enzalutamide was also evaluated in men with normal testosterone. METHODS Patients with rising prostate-specific antigen (PSA) after definitive therapy, normal testosterone and no radiographic metastasis were randomized to enzalutamide for 3 months with/without PROSTVAC for 6 months. Thereafter, patients could be retreated with another 3 month course of enzalutamide when PSA returned to baseline. Immune profiles were evaluated in these patients. RESULTS Thirty-eight patients were randomized with a median PSA=4.38 ng/dL and PSA doubling time=4.1 months. No difference was observed between the two groups for PSA growth kinetics, but PSA responses to enzalutamide were noteworthy regardless of PROSTVAC. The median PSA decline after short-course enzalutamide without ADT/testosterone lowering therapy was 99% in both courses. The median time to PSA recovery to baseline after each 84-day course of enzalutamide was also noteworthy because of the duration of response after enzalutamide was discontinued. After the first and second 3 month cycle of enzalutamide, PSA recovery to baseline took a median 224 (range 84-1246) and 189 days (78-400), respectively. The most common adverse events related to the enzalutamide were grade 1 fatigue (71%) and grade 1 breast pain/nipple tenderness (81%). The only grade 3 toxicity was aspartate aminotransferase (AST)/alanine aminotransferase (ALT) elevation in two patients. Enzalutamide was independently associated with immune changes, increasing natural killer cells, naïve-T cells, and decreasing myeloid-derived suppressor cells. CONCLUSIONS Three months of enzalutamide without ADT induced substantial PSA control beyond the treatment period and was repeatable, perhaps representing an alternative to intermittent ADT in nmCSPC. In addition, enzalutamide was associated with immune changes that could be relevant as future immune combinations are developed. TRAIL REGISTRATION NUMBER: clinicaltrials.gov (NCT01875250).
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Affiliation(s)
- Ravi A Madan
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Munjid Al-Harthy
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Marijo Bilusic
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Inger I Rosner
- The Center for Prostate Disease Research, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Harpreet Singh
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Philip M Arlen
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Marc R Theoret
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Lisa Cordes
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Anna Couvillon
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Amy Hankin
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Moniquea Williams
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Helen Owens
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Sarah E Lochrin
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Cindy H Chau
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Seth Steinberg
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - William Douglas Figg
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - William Dahut
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
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Gubbi S, Cordes LM, Klubo-Gwiezdzinska J, Madan RA, Nieman LK, Gulley JL, Del Rivero J. In Reply. Oncologist 2020; 26:e192-e193. [PMID: 33150998 DOI: 10.1002/onco.13589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/28/2020] [Indexed: 11/07/2022] Open
Affiliation(s)
- Sriram Gubbi
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Joanna Klubo-Gwiezdzinska
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Lynnette K Nieman
- Diabetes, Endocrine, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jaydira Del Rivero
- Developmental Therapeutics Branch, National Cancer Institute, National Institute of Health, Bethesda, Maryland, USA
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Bilusic M, Einstein DJ, Karzai FH, Dahut WL, Gulley JL, Aragon-Ching JB, Madan RA. The Potential Role for Immunotherapy in Biochemically Recurrent Prostate Cancer. Urol Clin North Am 2020; 47:457-467. [PMID: 33008496 PMCID: PMC8177734 DOI: 10.1016/j.ucl.2020.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Biochemically recurrent prostate cancer represents a stage of prostate cancer where conventional (continued on next page) computed tomography and technetium Tc 99m bone scan imaging are unable to detect disease after curative intervention despite rising prostate-specific antigen. There is no clear standard of care and no systemic therapy has been shown to improve survival. Immunotherapy-based treatments potentially are attractive options relative to androgen deprivation therapy due to the generally more favorable side-effect profile. Biochemically recurrent prostate cancer patients have a low tumor burden and likely lymph node-based disease, which may make them more likely to respond to immunotherapy.
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Affiliation(s)
- Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, 13n240b, Bethesda, MD 20892, USA
| | - David J Einstein
- Division of Medical Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Fatima H Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, 13n240b, Bethesda, MD 20892, USA
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, 13n240b, Bethesda, MD 20892, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, 13n240b, Bethesda, MD 20892, USA
| | | | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, 13n240b, Bethesda, MD 20892, USA.
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Madan RA, Karzai FH, Al Harthy M, Petrylak DP, Kim JW, Arlen PM, Rosner I, Theoret MR, Cordes L, Bilusic M, Peer CJ, Dawson NA, Couvillon A, Hankin A, Williams M, Chun G, Owens H, Marte JL, Lee MJ, Tomita Y, Yuno A, Trepel JB, Lee S, Steinberg SM, Gulley JL, Figg WD, Dahut WL. Cabozantinib plus docetaxel and prednisone in metastatic castration-resistant prostate cancer. BJU Int 2020; 127:435-444. [PMID: 32969563 DOI: 10.1111/bju.15227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the safety and efficacy of cabozantinib combined with docetaxel. PATIENTS AND METHODS This was a phase 1/2 multicentre study in patients with metastatic castration-resistant prostate cancer (mCRPC). Docetaxel (75 mg/m2 every 3 weeks with daily prednisone 10 mg) was combined with escalating doses of daily cabozantinib (20, 40 and 60 mg). Based on the results of the phase 1 study, the investigation was expanded into a randomized study of docetaxel with prednisone (hereafter 'docetaxel/prednisone') plus the maximum tolerated dose (MTD) of cabozantinib compared with docetaxel/prednisone alone. RESULTS A total of 44 men with mCRPC were enrolled in this phase 1/2 trial. An MTD of 40 mg cabozantinib plus docetaxel/prednisone was determined. Dose-limiting toxicities were neutropenic fever and palmar-plantar erythrodysesthesia, and there was one death attributable to a thromboembolic event. In addition, grade 3 or 4 myelosuppression, hypophosphataemia and neuropathy were seen in three or more patients. In the phase 1 study, the median time to progression (TTP) and overall survival (OS) time were 13.6 and 16.3 months, respectively. In the phase 2 study, which was terminated early because of poor accrual, the median TTP and OS favoured the combination (n = 13) compared to docetaxel/prednisone alone (n = 12; 21.0 vs 6.6 months; P = 0.035 and 23.8 vs 15.6 months; P = 0.072, respectively). CONCLUSION Despite the limited number of patients in this study, preliminary data suggest that cabozantinib can be safely added to docetaxel/prednisone with possible enhanced efficacy.
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Affiliation(s)
- Ravi A Madan
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | | | | | | | | | - Philip M Arlen
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Inger Rosner
- Center for Prostate Disease Research, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Marc R Theoret
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Lisa Cordes
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Cody J Peer
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Nancy A Dawson
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Anna Couvillon
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Amy Hankin
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | | | - Guin Chun
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Helen Owens
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | | | - Min-Jung Lee
- Developmental Therapeutics Branch, NCI, Bethesda, MD, USA
| | - Yusuke Tomita
- Developmental Therapeutics Branch, NCI, Bethesda, MD, USA
| | - Akira Yuno
- Developmental Therapeutics Branch, NCI, Bethesda, MD, USA
| | - Jane B Trepel
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - Sunmin Lee
- Developmental Therapeutics Branch, NCI, Bethesda, MD, USA
| | - Seth M Steinberg
- Biostatistics and Data Management Section, Center for Cancer Research, NCI, Bethesda, MD, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
| | - William D Figg
- Genitourinary Malignancies Branch, NCI, Bethesda, MD, USA
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Aragon-Ching JB, Madan RA. Life under the CABOSUN: Cabozantinib improves quality-adjusted survival in comparison with sunitinib. Cancer 2020; 126:5210-5212. [PMID: 33022092 DOI: 10.1002/cncr.33168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 08/07/2020] [Indexed: 11/12/2022]
Affiliation(s)
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
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Karzai F, Walker SM, Wilkinson S, Madan RA, Shih JH, Merino MJ, Harmon SA, VanderWeele DJ, Cordes LM, Carrabba NV, Bright JR, Terrigino NT, Chun G, Bilusic M, Couvillon A, Hankin A, Williams MN, Lis RT, Ye H, Choyke PL, Gulley JL, Sowalsky AG, Turkbey B, Pinto PA, Dahut WL. Sequential Prostate Magnetic Resonance Imaging in Newly Diagnosed High-risk Prostate Cancer Treated with Neoadjuvant Enzalutamide is Predictive of Therapeutic Response. Clin Cancer Res 2020; 27:429-437. [PMID: 33023952 DOI: 10.1158/1078-0432.ccr-20-2344] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/26/2020] [Accepted: 10/01/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE For high-risk prostate cancer, standard treatment options include radical prostatectomy (RP) or radiotherapy plus androgen deprivation therapy (ADT). Despite definitive therapy, many patients will have disease recurrence. Imaging has the potential to better define characteristics of response and resistance. In this study, we evaluated prostate multiparametric MRI (mpMRI) before and after neoadjuvant enzalutamide plus ADT. PATIENTS AND METHODS Men with localized intermediate- or high-risk prostate cancer underwent a baseline mpMRI and mpMRI-targeted biopsy followed by a second mpMRI after 6 months of enzalutamide and ADT prior to RP. Specimens were sectioned in the same plane as mpMRI using patient-specific 3D-printed molds to permit mpMRI-targeted biopsies to be compared with the same lesion from the RP. Specimens were analyzed for imaging and histologic correlates of response. RESULTS Of 39 patients enrolled, 36 completed imaging and RP. Most patients (92%) had high-risk disease. Fifty-eight lesions were detected on baseline mpMRI, of which 40 (69%) remained measurable at 6-month follow-up imaging. Fifty-five of 59 lesions (93%) demonstrated >50% volume reduction on posttreatment mpMRI. Three of 59 lesions (5%) demonstrated growth in size at follow-up imaging, with two lesions increasing more than 3-fold in volume. On whole-mount pathology, 15 patients demonstrated minimal residual disease (MRD) of <0.05 cc or pathologic complete response. Low initial mpMRI relative tumor burden was most predictive of MRD on final pathology. CONCLUSIONS Low relative lesion volume at baseline mpMRI was predictive of pathologic response. A subset of patients had limited response. Selection of patients based on these metrics may improve outcomes in high-risk disease.
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Affiliation(s)
- Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | | | - Scott Wilkinson
- Laboratory for Genitourinary Cancer Pathogenesis, NCI, NIH, Bethesda, Maryland
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Joanna H Shih
- Division of Cancer Treatment and Diagnosis, Biometric Research Program, NCI, NIH, Rockville, Maryland
| | | | - Stephanie A Harmon
- Clinical Research Directorate/Clinical Monitoring Research Program, Leidos Biomedical Research, Inc., NCI Campus at Frederick, Frederick, Maryland
| | - David J VanderWeele
- Laboratory for Genitourinary Cancer Pathogenesis, NCI, NIH, Bethesda, Maryland
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Nicole V Carrabba
- Laboratory for Genitourinary Cancer Pathogenesis, NCI, NIH, Bethesda, Maryland
| | - John R Bright
- Laboratory for Genitourinary Cancer Pathogenesis, NCI, NIH, Bethesda, Maryland
| | - Nicolas T Terrigino
- Laboratory for Genitourinary Cancer Pathogenesis, NCI, NIH, Bethesda, Maryland
| | - Guinevere Chun
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Anna Couvillon
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Amy Hankin
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Monique N Williams
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Rosina T Lis
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Huihui Ye
- Department of Pathology, Ronald Reagan UCLA Medical Center, Los Angeles, California
| | | | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Adam G Sowalsky
- Laboratory for Genitourinary Cancer Pathogenesis, NCI, NIH, Bethesda, Maryland
| | - Baris Turkbey
- Molecular Imaging Program, NCI, NIH, Bethesda, Maryland
| | - Peter A Pinto
- Urologic Oncology Branch, NCI, NIH, Bethesda, Maryland
| | - William L Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland.
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Schmidt KT, Huitema ADR, Dorlo TPC, Peer CJ, Cordes LM, Sciuto L, Wroblewski S, Pommier Y, Madan RA, Thomas A, Figg WD. Population pharmacokinetic analysis of nanoparticle-bound and free camptothecin after administration of NLG207 in adults with advanced solid tumors. Cancer Chemother Pharmacol 2020; 86:475-486. [PMID: 32897402 PMCID: PMC7515962 DOI: 10.1007/s00280-020-04134-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/22/2020] [Indexed: 12/27/2022]
Abstract
PURPOSE NLG207 (formerly CRLX101) is a nanoparticle-drug conjugate (NDC) of the potent topoisomerase I inhibitor, camptothecin (CPT). The present study sought to characterize the complex pharmacokinetics (PK) of NLG207 and better describe CPT release from nanoparticles using a population PK (popPK) model. METHODS From 27 patients enrolled on two phase II clinical trials (NCT02769962 and NCT03531827), dense sampling was performed up to 48 h post-administration of NLG207 during cycle one and six of treatment; samples were also collected at ~ 360 h post-dose. Conjugated and free CPT concentrations were quantified from each sample, resulting in 477 observations to build a popPK model using non-linear mixed-effects modeling. RESULTS The PK of NLG207 was characterized by combining two linear two-compartment models with first-order kinetics each to describe nanoparticle-bound (conjugated) and free CPT. Allometric scaling based on body weight provided the best body-size descriptor for all PK parameters. The typical volumes of distribution of the conjugated CPT central and free CPT central compartments were 3.16 L (BSV CV%; 18.1%) and 21.1 L (CV%; 79.8%), respectively. CPT release from the nanoparticle formulation was characterized via an initial rapid clearance of 5.71 L/h (CV%; 62.6%), which decreased via first-order decay (estimated half-life of 0.307 h) to the steady-state value of 0.0988 L/h (CV%; 33.5%) by ~ 4 h after end of infusion. Renal clearance of free CPT was 0.874 L/h (CV%; 42.2%). CONCLUSION The popPK model confirmed nanoparticle behavior of conjugated CPT and mechanistically characterized CPT release from NLG207. The current analysis provides a strong foundation for future study as a potential predictive tool in ongoing NLG207 clinical trials.
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Affiliation(s)
- Keith T Schmidt
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 10/Room 5A03, Bethesda, MD, 20892, USA
| | - Alwin D R Huitema
- Department Pharmacy and Pharmacology, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Thomas P C Dorlo
- Department Pharmacy and Pharmacology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Cody J Peer
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 10/Room 5A03, Bethesda, MD, 20892, USA
| | - Lisa M Cordes
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Linda Sciuto
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Susan Wroblewski
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yves Pommier
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Anish Thomas
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William D Figg
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 10/Room 5A03, Bethesda, MD, 20892, USA.
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Abstract
The PROfound trial highlights that there is a benefit in testing genes involved in homologous recombination (HR) and forms the rationale for testing in all patients with metastatic, castration-resistant prostate cancer (mCRPC). This trial also demostrates that olaparib improves progression free survival (PFS), objective response rate (ORR), and time to pain progression in patients who harbor alterations in BRCA1, BRCA2, and ATM. These are groundbreaking findings - this is the first trial that demonstrates the efficacy of olaparib versus standard therapy in a genomically-selected patient population with metastatic prostate cancer. Although this trial does not demonstrate improvements in overall survival (OS), we believe that this may be an underestimation based on trial-design. Future studies of olaparib are likely to yield further promising results.
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Affiliation(s)
- Vincent Chau
- Genitourinary Malignancies Branch, National Institutes of Health , Bethesda, MD, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Institutes of Health , Bethesda, MD, USA
| | - William D Figg
- Genitourinary Malignancies Branch, National Institutes of Health , Bethesda, MD, USA
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Merino MJ, Dikoglu E, Pinto P, Turkbey B, Dahut W, Chun G, Madan RA, Karzai F. Abstract 618: The morphologic effects of treatment with neoadjuvant enzalutamide and androgen deprivation therapy in high risk prostatic cancer: What the pathologist needs to know. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: In this study we report the effects of neoadjuvant enzalutamide (enza) plus androgen deprivation therapy (ADT) in the prostatectomy specimens of patients receiving this therapy, and the immunoprofile of the tumors. Prostate cancer is the most common cancer in men, affecting 1 out of 9 men in the US. Treatment for newly diagnosed, non-metastatic, high-risk disease includes surgery or radiation in combination with ADT. Enza, an androgen receptor antagonist, is FDA approved for non-metastatic and metastatic castrate-resistant prostate cancer. Studies have shown intensive androgen receptor targeting for localized disease can lead to complete responses.
Design: Single institution study (NCT02430480) evaluating 6 months of neoadjuvant enza (160 mg daily) plus ADT in patients with high risk non-metastatic prostatic cancer. Twenty-two prostatectomy specimens were evaluated. Specimens were fixed in formalin and paraffin embedded following the protocol established for these specimens. Detailed morphological evaluation was performed and tumors compared with prior diagnostic biopsies. Correlation with prior multiparametric MRI (mpMRI) was done. Sections with tumor were obtained (4mm thickness) and stained for IHC for PTEN antibody (Cell signaling), AR (Abcam) and ERG (Abcam)
Results: Patients ranged in age from 43 to 73 years (med 61years). Prior biopsies included Gleason scores of 7(3+4,5 cases); 7(4+3, 3 cases), 8(4+4, 5 cases),9(4+5, 8 cases), 10(1 case). Grossly, the prostatectomy specimens appeared smaller in size. Reviewing prior mpMRI, it was noted that the median prostate volume decreased by 50.7% after 6 months of treatment. No tumor was identified in 2 cases; one with multiple Gleason grade 8 biopsies and the other one Gleason grade 9 in all prior biopsies. In all except 2 cases, the most striking histologic change was the tumor cells that often resembled fusiform histiocytes growing in discrete clusters or individual cells. Occasional small gland formation was present in some cases. Prominent basal cell hyperplasia was present as well as nodular stromal hyperplasia that in MRI mimic cancer. The amount of tumor present varied from bilateral involvement to 10% of one lobe. Most cases were stage pT2 and pT3. 20 cases were positive for AR, 3 had loss of PTEN and 5 had ERG expression (total 22 cases).
Conclusions: Enzalutamide is a potent antiandrogen with promising results in the neoadjuvant treatment of high-risk prostatic cancer. We report in this study the effect and morphologic changes that occur in the tumor as the result of this therapy. Recognition of these morphologic changes is important since the residual tumor may appear different than the prior diagnostic biopsies.
Citation Format: Maria J. Merino, Esra Dikoglu, Peter Pinto, Baris Turkbey, William Dahut, Guinevere Chun, Ravi A. Madan, Fatima Karzai. The morphologic effects of treatment with neoadjuvant enzalutamide and androgen deprivation therapy in high risk prostatic cancer: What the pathologist needs to know [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 618.
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Affiliation(s)
- Maria J. Merino
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Esra Dikoglu
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Peter Pinto
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Baris Turkbey
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - William Dahut
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Guinevere Chun
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Ravi A. Madan
- National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Fatima Karzai
- National Cancer Institute, National Institutes of Health, Bethesda, MD
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Abstract
Immune checkpoint inhibitor (ICI) therapy and therapeutic cancer vaccines have continued to demonstrate survival benefit and durable clinical response in patients with renal cell cancer, prostate cancer and bladder cancer, with limited responses in testicular cancer. The role of immunotherapy in combination with chemotherapy or other targeted therapies in the neo-adjuvant, adjuvant and metastatic setting is actively being explored. We describe the current immunotherapy-related treatment modalities approved for genitourinary cancers, focusing on immune checkpoint inhibitors, vaccines and other modalities, and highlight ongoing studies involving immunotherapy in these cancer types.
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Affiliation(s)
- Shruti U Gandhy
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Karzai F, Madan RA, Dahut WL. The World of Clinical Trial Development Post COVID-19: Lessons Learned from a Global Pandemic. Clin Cancer Res 2020; 26:4198-4200. [DOI: 10.1158/1078-0432.ccr-20-1914] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/22/2020] [Accepted: 06/02/2020] [Indexed: 11/16/2022]
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Madan RA, Antonarakis ES, Drake CG, Fong L, Yu EY, McNeel DG, Lin DW, Chang NN, Sheikh NA, Gulley JL. Putting the Pieces Together: Completing the Mechanism of Action Jigsaw for Sipuleucel-T. J Natl Cancer Inst 2020; 112:562-573. [PMID: 32145020 PMCID: PMC7301097 DOI: 10.1093/jnci/djaa021] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/23/2020] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
Sipuleucel-T is an autologous cellular immunotherapy that induces an immune response targeted against prostatic acid phosphatase (PAP) to treat asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer. In the phase III IMPACT study, sipuleucel-T was associated with a statistically significantly increased overall survival (OS) (median = 4.1 months) vs placebo. Patients with baseline prostate-specific antigen levels in the lowest quartile (≤22.1 ng/mL) exhibited a 13-month improvement in OS with sipuleucel-T. Together, this led sipuleucel-T to be approved and recommended as first-line therapy in various guidelines for treatment of metastatic castration-resistant prostate cancer. This review discusses the varied findings about the mechanisms of action of sipuleucel-T, bringing them together to form a more coherent picture. These pieces include inducing a statistically significant increase in antigen-presenting cell activation; inducing a peripheral immune response specific to the target (PAP) and/or immunizing (PA2024) antigens; stimulating systemic cytotoxic T-lymphocyte activity; and mediating antigen spread (ie, increased antibody responses to secondary proteins in addition to PAP and PA2024). Each of these pieces individually correlates with OS. Sipuleucel-T also traffics T cells to the prostate and is associated with long-term immune memory such that a second course of treatment induces an anamnestic immune response. Prostate cancer does not have a strongly inflamed microenvironment, thus its response to immune checkpoint inhibitors is limited. Because sipuleucel-T is able to traffic T cells to the tumor, it may be an ideal combination partner with immunotherapies including immune checkpoint inhibitors or with radiation therapy.
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Affiliation(s)
- Ravi A Madan
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Charles G Drake
- Columbia University Herbert Irving Comprehensive Cancer Center, New York, NY, USA
| | - Lawrence Fong
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA
| | - Evan Y Yu
- University of Washington and Seattle Cancer Care Alliance, Seattle, WA, USA
| | | | - Daniel W Lin
- University of Washington and Seattle Cancer Care Alliance, Seattle, WA, USA
| | | | | | - James L Gulley
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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