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Srkalovic G, Rothe M, Mangat PK, Garrett-Mayer E, Ahn ER, Brouse G, Chan J, Mehmi I, Khalil M, Duvivier HL, Gaba A, Leuva H, Thota R, Yost KJ, Grantham GN, Gregory A, Hinshaw DC, Halabi S, Schilsky RL. Talazoparib in Patients With Solid Tumors With BRCA1/ 2 Mutation: Results From the Targeted Agent and Profiling Utilization Registry Study. JCO Precis Oncol 2024; 8:e2400026. [PMID: 38865672 DOI: 10.1200/po.24.00026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/22/2024] [Accepted: 04/04/2024] [Indexed: 06/14/2024] Open
Abstract
PURPOSE The Targeted Agent and Profiling Utilization Registry Study is a phase II basket trial evaluating the antitumor activity of commercially available targeted agents in patients with advanced cancer and genomic alterations known to be drug targets. Results of a cohort of patients with various solid tumors with germline or somatic BRCA1/2 mutations treated with talazoparib are reported. METHODS Eligible patients had advanced solid tumors, measurable disease (RECIST), Eastern Cooperative Oncology Group performance status 0-2, adequate organ function, and no standard treatment options. Patients with germline BRCA-mutated human epidermal growth factor receptor 2-negative locally advanced or metastatic breast cancer were not eligible for this study. Primary end point was disease control (DC) determined by investigator assessment of objective response (OR) or stable disease (SD) of at least 16 weeks duration (SD16+). The results were evaluated on the basis of a one-sided exact binomial test with a null DC rate of 15% versus 35% (power = 0.82; α = .10). Secondary end points were OR, progression-free survival, overall survival, duration of response, duration of SD, and safety. RESULTS Twenty-eight patients (20 cancer types) with BRCA1/2 mutations were enrolled from December 2019 to September 2021 and collapsed into a single histology pooled cohort for analysis. All patients were evaluable for efficacy. One complete response, nine partial response, and six SD16+ were observed for DC and OR rates of 57% (one-sided 90% CI, 43 to 100) and 36% (95% CI, 19 to 56), respectively. The null hypothesis of a 15% DC rate was rejected (P < .001). Patients with OR had the following tumor types: breast (2), nonmelanoma skin, mesothelioma, stomach, uterus, non-small cell lung cancer, ovary, hepatocellular carcinoma, and pancreas. Thirteen patients had at least one grade 3-5 adverse event (AE) or serious AE at least possibly related to talazoparib. All were consistent with the drug label except bilirubin increase and hyponatremia (both grade 3 AEs). CONCLUSION Talazoparib demonstrated antitumor activity in patients with advanced solid tumors and BRCA1/2 mutations, including cancer types for which poly ADP-ribose polymerase inhibitors are not yet US Food and Drug Administration-approved.
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Affiliation(s)
- Gordan Srkalovic
- Herbert-Herman Cancer Center, Lansing, MI
- Michigan Cancer Research Consortium, Ypsilanti, MI
| | - Michael Rothe
- American Society of Clinical Oncology, Alexandria, VA
| | - Pam K Mangat
- American Society of Clinical Oncology, Alexandria, VA
| | | | | | | | - John Chan
- Sutter Cancer Research Consortium, San Francisco, CA
| | - Inderjit Mehmi
- The Angeles Clinic and Research Institute, A Cedars-Sinai Affiliate, Los Angeles, CA
| | - Maya Khalil
- O'Neal Comprehensive Cancer Center at the University of Alabama at Birmingham School of Medicine, Birmingham, AL
| | | | | | | | | | - Kathleen J Yost
- Cancer Research Consortium of West Michigan, Grand Rapids, MI
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Fallah J, Xu J, Weinstock C, Gao X, Heiss BL, Maguire WF, Chang E, Agrawal S, Tang S, Amiri-Kordestani L, Pazdur R, Kluetz PG, Suzman DL. Efficacy of Poly(ADP-ribose) Polymerase Inhibitors by Individual Genes in Homologous Recombination Repair Gene-Mutated Metastatic Castration-Resistant Prostate Cancer: A US Food and Drug Administration Pooled Analysis. J Clin Oncol 2024; 42:1687-1698. [PMID: 38484203 PMCID: PMC11095872 DOI: 10.1200/jco.23.02105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/29/2023] [Accepted: 12/20/2023] [Indexed: 05/09/2024] Open
Abstract
PURPOSE We performed a pooled analysis of multiple trials of poly(ADP-ribose) polymerase inhibitors (PARPi) in metastatic castration-resistant prostate cancer (mCRPC) to investigate the efficacy of PARPi in each individual homologous recombination repair (HRR) mutated (m) gene. PATIENTS AND METHODS We pooled patient-level data from trials of PARPi in mCRPC that reported mutation status in individual HRR genes. Any HRR gene with available data across all the randomized trials of PARPi in first-line mCRPC was selected. The hazard ratios (HRs; 95% CI) for radiographic progression-free survival (rPFS; by blinded independent review) and overall survival (OS) of a PARPi plus an androgen receptor pathway inhibitor (ARPI) relative to placebo plus an ARPI in the pool of three randomized trials in first-line mCRPC were calculated using Kaplan-Meier estimates and a Cox proportional hazards model. RESULTS In ATMm (N = 268), rPFS HR was 1.05 (0.74 to 1.49) and OS HR was 1.18 (0.82 to 1.71). In BRCA1m (N = 64), rPFS HR was 0.51 (0.23 to 1.1) and OS HR was 0.74 (0.34 to 1.61). In BRCA2m (N = 422), rPFS HR was 0.31 (0.23 to 0.42) and OS HR was 0.66 (0.49 to 0.89). In CDK12m (N = 164), rPFS HR was 0.50 (0.32 to 0.80) and OS HR was 0.63 (0.39 to 0.99). In CHEK2m (N = 172), rPFS HR was 1.06 (0.67 to 1.66) and OS HR was 1.53 (0.95 to 2.46). In PALB2m (N = 41) rPFS HR was 0.52 (0.23 to 1.17) and OS HR was 0.78 (0.34 to 1.8). CONCLUSION In this pooled analysis, benefit from PARPi appeared greatest for patients with BRCA1m, BRCA2m, CDK12m, and PALB2m. Given limitations of this exploratory analysis, the apparent lack of benefit from PARPi in patients with CHEK2m or ATMm should be further explored in future clinical trials.
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Affiliation(s)
- Jaleh Fallah
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Jianjin Xu
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Chana Weinstock
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Xin Gao
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Brian L. Heiss
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - William F. Maguire
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Elaine Chang
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Sundeep Agrawal
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Shenghui Tang
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
| | - Laleh Amiri-Kordestani
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
- Oncology Center of Excellence (OCE), U.S. Food and Drug Administration, Silver Spring, MD
| | - Richard Pazdur
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
- Oncology Center of Excellence (OCE), U.S. Food and Drug Administration, Silver Spring, MD
| | - Paul G. Kluetz
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
- Oncology Center of Excellence (OCE), U.S. Food and Drug Administration, Silver Spring, MD
| | - Daniel L. Suzman
- Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration, Silver Spring, MD
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Arcieri M, Tius V, Andreetta C, Restaino S, Biasioli A, Poletto E, Damante G, Ercoli A, Driul L, Fagotti A, Lorusso D, Scambia G, Vizzielli G. How BRCA and homologous recombination deficiency change therapeutic strategies in ovarian cancer: a review of literature. Front Oncol 2024; 14:1335196. [PMID: 38525421 PMCID: PMC10957789 DOI: 10.3389/fonc.2024.1335196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/09/2024] [Indexed: 03/26/2024] Open
Abstract
About 50% of High Grade Serous Ovarian Cancer exhibit a high degree of genomic instability due to mutation of genes involved in Homologous Recombination (HRD) and such defect accounts for synthetic lethality mechanism of PARP inhibitors (PARP-i). Several clinical trials have shown how BRCA and HRD mutational status profoundly affect first line chemotherapy as well as response to maintenance therapy with PARP-i, hence Progression Free Survival and Overall Survival. Consequently, there is urgent need for the development of increasingly reliable HRD tests, overcoming present limitations, as they play a key role in the diagnostic and therapeutic process as well as have a prognostic and predictive value. In this review we offer an overview of the state of the art regarding the actual knowledge about BRCA and HRD mutational status, the rationale of PARPi use and HRD testing (current and in development assays) and their implications in clinical practice and in the treatment decision process, in order to optimize and choose the best tailored therapy in patients with ovarian cancer.
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Affiliation(s)
- Martina Arcieri
- Clinic of Obstetrics and Gynecology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
- Department of Biomedical, Dental, Morphological and Functional Imaging Science, University of Messina, Messina, Italy
| | - Veronica Tius
- Medical Area Department (DAME), in Department of Medicine (DMED), University of Udine, Udine, Italy
| | - Claudia Andreetta
- Department of Medical Oncology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
| | - Stefano Restaino
- Clinic of Obstetrics and Gynecology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
| | - Anna Biasioli
- Clinic of Obstetrics and Gynecology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
| | - Elena Poletto
- Department of Medical Oncology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
| | - Giuseppe Damante
- Medical Area Department (DAME), in Department of Medicine (DMED), University of Udine, Udine, Italy
- Medical Genetics Institute, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
| | - Alfredo Ercoli
- Department of Human Pathology in Adult and Childhood “G. Barresi”, Unit of Gynecology and Obstetrics, University of Messina, Messina, Italy
| | - Lorenza Driul
- Clinic of Obstetrics and Gynecology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
- Medical Area Department (DAME), in Department of Medicine (DMED), University of Udine, Udine, Italy
| | - Anna Fagotti
- Dipartimento per le Scienze Della Salute Della Donna, del Bambino e di Sanità Pubblica, UOC Ginecologia Oncologica, in Division of Gynecologic Oncology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Domenica Lorusso
- Dipartimento per le Scienze Della Salute Della Donna, del Bambino e di Sanità Pubblica, UOC Ginecologia Oncologica, in Division of Gynecologic Oncology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Giovanni Scambia
- Dipartimento per le Scienze Della Salute Della Donna, del Bambino e di Sanità Pubblica, UOC Ginecologia Oncologica, in Division of Gynecologic Oncology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Giuseppe Vizzielli
- Clinic of Obstetrics and Gynecology, “S. Maria della Misericordia” University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy
- Medical Area Department (DAME), in Department of Medicine (DMED), University of Udine, Udine, Italy
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Does Molecular Profiling of KRAS-Mutant Non-Squamous Non-Small Cell Lung Cancer (NSCLC) Help in Treatment Strategy Planning? Curr Oncol 2022; 29:4779-4790. [PMID: 35877239 PMCID: PMC9315614 DOI: 10.3390/curroncol29070379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Several studies suggest that patients with KRAS-mutant NSCLC fail to benefit from standard systemic therapies and do not respond to EGFR inhibitors. Most recently, KRAS 12c data suggest specific treatment for improving ORR and OS. There is a clear need for therapies specifically developed for these patients. Moreover, data that might be suggestive of a response to specific therapies, such as BRCA1, are needed, and two mutations that were studied in other malignancies show more response to PARP inhibitors. Molecular profiling has the potential to identify other potential targets that may provide better treatment and novel targeted therapy for KRAS-mutated NSCLC. Methods: We purified RNA from archived tissues of patients with stage I and II NSCLC with wild-type (wt) and mutant (mt) KRAS tumors; paired normal tissue adjacent to the tumor from 20 and 17 patients, respectively, and assessed, using real-time reverse transcriptase−polymerase chain reaction (RT-PCR), the expression of four genes involved in DNA synthesis and repair, including thymidylate synthase (TS), BRCA1, ECCR1, RAP80, and the proto-oncogene SRC. Additionally, we assessed the expression of PD-L1 in mt KRAS tumors with immunohistochemistry using an antibody against PD-L1. Results: Our results show that in mtKRAS tumors, the level of expression of ERCC1, TS, and SRC was significantly increased in comparison to paired normal lung tissue (p ≤ 0.04). The expression of BRCA1 and RAP80 was similar in both mt KRAS tumors and paired normal tissue. Furthermore, the expression of BRCA1, TS, and SRC was significantly increased in wt KRAS tumors relative to their expression in the normal lung tissue (p < 0.044). The expression of ERCC1 and RAP80 was similar in wt KRAS tumors and paired normal tissue. Interestingly, SRC expression in mtKRAS tumors was decreased in comparison to wt KRAS tumors. Notably, there was an expression of PD-L1 in the tumor and stromal cells in a few (5 out of 20) mtKRAS tumors. Our results suggest that a greater ERCC1 expression in mt KRAS tumors might increase platinum resistance in this group of patients, whereas the greater expression of BRCA1 in wt KRAS tumor might be suggestive of the sensitivity of taxanes. Our data also suggest that the combination of an SRC inhibitor with a TS inhibitor, such as pemetrexed, might improve the outcome of patients with NSCLC and in particular, patients with wt KRAS tumors. PD-L1 expression in tumors, and especially stromal cells, suggests a better outcome. Conclusion: mt KRAS NSCLC patients might benefit from a treatment strategy that targets KRAS in combination with therapeutic agents based on pharmacogenomic markers, such as SRC and BRCA1. mtKRAS tumors are likely to be platinum-, taxane-, and pemetrexed-resistant, as well as having a low level of PD-L1 expression; thus, they are less likely to receive single-agent immunotherapy, such as pembrolizumab, as the first-line therapy. wt KRAS tumors with BRCA1 positivity tend to be sensitive to taxane therapy and, potentially, platinum. Our results suggest the need to develop targeted therapies for KRAS-mutant NSCLC or combine the targeting of oncogenic KRAS in addition to other therapeutic agents specific to the molecular profile of the tumor.
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The BRCA Gene in Epithelial Ovarian Cancer. Cancers (Basel) 2022; 14:cancers14051235. [PMID: 35267543 PMCID: PMC8909050 DOI: 10.3390/cancers14051235] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 01/27/2023] Open
Abstract
Simple Summary Epithelial ovarian cancer (EOC) is still the most lethal gynecological cancer. In the recent years, the germline alterations in breast cancer 1 (gBRCA1) and breast cancer 2 (gBRCA2) genes are of key importance not only for genetic counseling purposes, but for its therapeutic implications, as well as somatic mutations, for the latter. The integration of poly-(ADP ribose) polymerase inhibitors (PARPis) as part of the therapeutic options has changed EOC natural history. Abstract Epithelial ovarian cancer (EOC) is still the most lethal gynecological cancer. Germline alterations in breast cancer 1 (gBRCA1) and breast cancer 2 (gBRCA2) genes have been identified in up to 18% of women diagnosed with EOC, and somatic mutations are found in an additional 7%. Testing of BRCA at the primary diagnosis of patients with EOC is recommended due to the implications in the genomic counseling of the patients and their families, as well as for the therapeutic implications. Indeed, the introduction of poly-(ADP ribose) polymerase inhibitors (PARPis) has changed the natural history of patients harboring a mutation in BRCA, and has resulted in a new era in the treatment of patients with ovarian cancer harboring a BRCA mutation.
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Yordanova M, Hubert A, Hassan S. Expanding the Use of PARP Inhibitors as Monotherapy and in Combination in Triple-Negative Breast Cancer. Pharmaceuticals (Basel) 2021; 14:1270. [PMID: 34959671 PMCID: PMC8709256 DOI: 10.3390/ph14121270] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer, and is known to be associated with a poor prognosis and limited therapeutic options. Poly (ADP-ribose) polymerase inhibitors (PARPi) are targeted therapeutics that have demonstrated efficacy as monotherapy in metastatic BRCA-mutant (BRCAMUT) TNBC patients. Improved efficacy of PARPi has been demonstrated in BRCAMUT breast cancer patients who have either received fewer lines of chemotherapy or in chemotherapy-naïve patients in the metastatic, adjuvant, and neoadjuvant settings. Moreover, recent trials in smaller cohorts have identified anti-tumor activity of PARPi in TNBC patients, regardless of BRCA-mutation status. While there have been concerns regarding the efficacy and toxicity of the use of PARPi in combination with chemotherapy, these challenges can be mitigated with careful attention to PARPi dosing strategies. To better identify a patient subpopulation that will best respond to PARPi, several genomic biomarkers of homologous recombination deficiency have been tested. However, gene expression signatures associated with PARPi response can integrate different pathways in addition to homologous recombination deficiency and can be implemented in the clinic more readily. Taken together, PARPi have great potential for use in TNBC patients beyond BRCAMUT status, both as a single-agent and in combination.
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Affiliation(s)
- Mariya Yordanova
- Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
| | - Audrey Hubert
- Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3T5, Canada;
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), l’Institut de Cancer de Montreal, Montreal, QC H2X 0A9, Canada
| | - Saima Hassan
- Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3T5, Canada;
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), l’Institut de Cancer de Montreal, Montreal, QC H2X 0A9, Canada
- Division of Surgical Oncology, Department of Surgery, Centre Hospitalier de l’Université de Montréal (CHUM), Montreal, QC H2X 0C1, Canada
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