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Beaton L, Tregidgo HFJ, Znati SA, Forsyth S, Counsell N, Clarkson MJ, Bandula S, Chouhan M, Lowe HL, Thin MZ, Hague J, Sharma D, Pollok JM, Davidson BR, Raja J, Munneke G, Stuckey DJ, Bascal ZA, Wilde PE, Cooper S, Ryan S, Czuczman P, Boucher E, Hartley JA, Atkinson D, Lewis AL, Jansen M, Meyer T, Sharma RA. Phase 0 Study of Vandetanib-Eluting Radiopaque Embolics as a Preoperative Embolization Treatment in Patients with Resectable Liver Malignancies. J Vasc Interv Radiol 2022; 33:1034-1044.e29. [PMID: 35526675 DOI: 10.1016/j.jvir.2022.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 04/03/2022] [Accepted: 04/21/2022] [Indexed: 11/19/2022] Open
Abstract
PURPOSE To assess the safety and tolerability of a vandetanib-eluting radiopaque embolic (BTG-002814) for transarterial chemoembolization (TACE) in patients with resectable liver malignancies. MATERIALS AND METHODS The VEROnA clinical trial was a first-in-human, phase 0, single-arm, window-of-opportunity study. Eligible patients were aged ≥18 years and had resectable hepatocellular carcinoma (HCC) (Child-Pugh A) or metastatic colorectal cancer (mCRC). Patients received 1 mL of BTG-002814 transarterially (containing 100 mg of vandetanib) 7-21 days prior to surgery. The primary objectives were to establish the safety and tolerability of BTG-002814 and determine the concentrations of vandetanib and the N-desmethyl vandetanib metabolite in the plasma and resected liver after treatment. Biomarker studies included circulating proangiogenic factors, perfusion computed tomography, and dynamic contrast-enhanced magnetic resonance imaging. RESULTS Eight patients were enrolled: 2 with HCC and 6 with mCRC. There was 1 grade 3 adverse event (AE) before surgery and 18 after surgery; 6 AEs were deemed to be related to BTG-002814. Surgical resection was not delayed. Vandetanib was present in the plasma of all patients 12 days after treatment, with a mean maximum concentration of 24.3 ng/mL (standard deviation ± 13.94 ng/mL), and in resected liver tissue up to 32 days after treatment (441-404,000 ng/g). The median percentage of tumor necrosis was 92.5% (range, 5%-100%). There were no significant changes in perfusion imaging parameters after TACE. CONCLUSIONS BTG-002814 has an acceptable safety profile in patients before surgery. The presence of vandetanib in the tumor specimens up to 32 days after treatment suggests sustained anticancer activity, while the low vandetanib levels in the plasma suggest minimal release into the systemic circulation. Further evaluation of this TACE combination is warranted in dose-finding and efficacy studies.
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Affiliation(s)
- Laura Beaton
- University College London Cancer Institute, University College London, London, United Kingdom.
| | - Henry F J Tregidgo
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Sami A Znati
- University College London Cancer Institute, University College London, London, United Kingdom
| | - Sharon Forsyth
- Cancer Research UK and University College London Cancer Trials Centre, University College London, London, United Kingdom
| | - Nicholas Counsell
- Cancer Research UK and University College London Cancer Trials Centre, University College London, London, United Kingdom
| | - Matthew J Clarkson
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Steven Bandula
- University College London Centre for Medical Imaging, University College London, London, United Kingdom
| | - Manil Chouhan
- University College London Centre for Medical Imaging, University College London, London, United Kingdom
| | - Helen L Lowe
- University College London Experimental Cancer Medicine Centre Good Clinical Laboratory Practice Facility, University College London, London, United Kingdom
| | - May Zaw Thin
- Centre for Advanced Biomedical Imaging, University College London, London, United Kingdom
| | - Julian Hague
- University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Dinesh Sharma
- Division of Transplantation and Immunology, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Joerg-Matthias Pollok
- Division of Surgery and Interventional Science, University College London, London, United Kingdom; Hepatopancreatobiliary Surgery and Liver Transplantation, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Brian R Davidson
- Division of Surgery and Interventional Science, University College London, London, United Kingdom; Hepatopancreatobiliary Surgery and Liver Transplantation, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Jowad Raja
- University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Graham Munneke
- University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Daniel J Stuckey
- Centre for Advanced Biomedical Imaging, University College London, London, United Kingdom
| | - Zainab A Bascal
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - Paul E Wilde
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - Sarah Cooper
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - Samantha Ryan
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - Peter Czuczman
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - Eveline Boucher
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - John A Hartley
- University College London Cancer Institute, University College London, London, United Kingdom; University College London Experimental Cancer Medicine Centre Good Clinical Laboratory Practice Facility, University College London, London, United Kingdom
| | - David Atkinson
- University College London Centre for Medical Imaging, University College London, London, United Kingdom
| | - Andrew L Lewis
- Biocompatibles UK Ltd, Lakeview, Riverside Way, Watchmoor Park, Camberley, Surrey, United Kingdom
| | - Marnix Jansen
- University College London Cancer Institute, University College London, London, United Kingdom; University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Tim Meyer
- University College London Cancer Institute, University College London, London, United Kingdom; Department of Oncology, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Ricky A Sharma
- National Institute for Health Research University College London Hospitals Biomedical Centre, University College London Cancer Institute, London, United Kingdom
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Beaton L, Tregidgo HFJ, Znati SA, Forsyth S, Clarkson MJ, Bandula S, Chouhan M, Lowe HL, Zaw Thin M, Hague J, Sharma D, Pollok JM, Davidson BR, Raja J, Munneke G, Stuckey DJ, Bascal ZA, Wilde PE, Cooper S, Ryan S, Czuczman P, Boucher E, Hartley JA, Lewis AL, Jansen M, Meyer T, Sharma RA. VEROnA Protocol: A Pilot, Open-Label, Single-Arm, Phase 0, Window-of-Opportunity Study of Vandetanib-Eluting Radiopaque Embolic Beads (BTG-002814) in Patients With Resectable Liver Malignancies. JMIR Res Protoc 2019; 8:e13696. [PMID: 31579027 PMCID: PMC6777276 DOI: 10.2196/13696] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/08/2019] [Accepted: 07/16/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Transarterial chemoembolization (TACE) is the current standard of care for patients with intermediate-stage hepatocellular carcinoma (HCC) and is also a treatment option for patients with liver metastases from colorectal cancer. However, TACE is not a curative treatment, and tumor progression occurs in more than half of the patients treated. Despite advances and technical refinements of TACE, including the introduction of drug-eluting beads-TACE, the clinical efficacy of TACE has not been optimized, and improved arterial therapies are required. OBJECTIVE The primary objectives of the VEROnA study are to evaluate the safety and tolerability of vandetanib-eluting radiopaque embolic beads (BTG-002814) in patients with resectable liver malignancies and to determine concentrations of vandetanib and the N-desmethyl metabolite in plasma and resected liver following treatment with BTG-002814. METHODS The VEROnA study is a first-in-human, open-label, single-arm, phase 0, window-of-opportunity study of BTG-002814 (containing 100 mg vandetanib) delivered transarterially, 7 to 21 days before surgery in patients with resectable liver malignancies. Eligible patients have a diagnosis of colorectal liver metastases, or HCC (Childs Pugh A), diagnosed histologically or radiologically, and are candidates for liver surgery. All patients are followed up for 28 days following surgery. Secondary objectives of this study are to evaluate the anatomical distribution of BTG-002814 on noncontrast-enhanced imaging, to evaluate histopathological features in the surgical specimen, and to assess changes in blood flow on dynamic contrast-enhanced magnetic resonance imaging following treatment with BTG-002814. Exploratory objectives of this study are to study blood biomarkers with the potential to identify patients likely to respond to treatment and to correlate the distribution of BTG-002814 on imaging with pathology by 3-dimensional modeling. RESULTS Enrollment for the study was completed in February 2019. Results of a planned interim analysis were reviewed by a safety committee after the first 3 patients completed follow-up. The recommendation of the committee was to continue the study without any changes to the dose or trial design, as there were no significant unexpected toxicities related to BTG-002814. CONCLUSIONS The VEROnA study is studying the feasibility of administering BTG-002814 to optimize the use of this novel technology as liver-directed therapy for patients with primary and secondary liver cancer. TRIAL REGISTRATION ClinicalTrial.gov NCT03291379; https://clinicaltrials.gov/ct2/show/NCT03291379. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/13696.
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Affiliation(s)
- Laura Beaton
- University College London Cancer Institute, University College London, London, United Kingdom
| | - Henry F J Tregidgo
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Sami A Znati
- University College London Cancer Institute, University College London, London, United Kingdom
| | - Sharon Forsyth
- Cancer Research UK University College London Cancer Trials Centre, London, United Kingdom
| | - Matthew J Clarkson
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Steven Bandula
- University College London Centre for Medical Imaging, University College London, London, United Kingdom
| | - Manil Chouhan
- University College London Centre for Medical Imaging, University College London, London, United Kingdom
| | - Helen L Lowe
- University College London Experimental Cancer Medicine Centre Good Clinical Laboratory Practice Facility, University College London, London, United Kingdom
| | - May Zaw Thin
- Centre for Advanced Biomedical Imaging, University College London, London, United Kingdom
| | - Julian Hague
- University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Dinesh Sharma
- Division of Transplantation and Immunology, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Joerg-Matthias Pollok
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
- Hepatopancreatobiliary Surgery and Liver Transplantation, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Brian R Davidson
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
- Hepatopancreatobiliary Surgery and Liver Transplantation, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Jowad Raja
- University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Graham Munneke
- University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Daniel J Stuckey
- Centre for Advanced Biomedical Imaging, University College London, London, United Kingdom
| | | | | | | | | | | | | | - John A Hartley
- University College London Cancer Institute, University College London, London, United Kingdom
| | | | - Marnix Jansen
- University College London Cancer Institute, University College London, London, United Kingdom
| | - Tim Meyer
- University College London Cancer Institute, University College London, London, United Kingdom
- Department of Oncology, Royal Free Hospital NHS Foundation Trust, London, United Kingdom
| | - Ricky A Sharma
- National Institute for Health Research University College London Hospitals Biomedical Centre, University College London Cancer Institute, London, United Kingdom
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Porta-Sánchez A, Gilbert C, Spears D, Amir E, Chan J, Nanthakumar K, Thavendiranathan P. Incidence, Diagnosis, and Management of QT Prolongation Induced by Cancer Therapies: A Systematic Review. J Am Heart Assoc 2017; 6:JAHA.117.007724. [PMID: 29217664 PMCID: PMC5779062 DOI: 10.1161/jaha.117.007724] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background The cardiovascular complications of cancer therapeutics are the focus of the burgeoning field of cardio‐oncology. A common challenge in this field is the impact of cancer drugs on cardiac repolarization (ie, QT prolongation) and the potential risk for the life‐threatening arrhythmia torsades de pointes. Although QT prolongation is not a perfect marker of arrhythmia risk, this has become a primary safety metric among oncologists. Cardiologists caring for patients receiving cancer treatment should become familiar with the drugs associated with QT prolongation, its incidence, and appropriate management strategies to provide meaningful consultation in this complex clinical scenario. Methods and Results In this article, we performed a systematic review (using Preferred Reporting Items of Systematic Reviews and Meta‐Analyses (PRISMA) guidelines) of commonly used cancer drugs to determine the incidence of QT prolongation and clinically relevant arrhythmias. We calculated summary estimates of the incidence of all and clinically relevant QT prolongation as well as arrhythmias and sudden cardiac death. We then describe strategies to prevent, identify, and manage QT prolongation in patients receiving cancer therapy. We identified a total of 173 relevant publications. The weighted incidence of any corrected QT (QTc) prolongation in our systematic review in patients treated with conventional therapies (eg, anthracyclines) ranged from 0% to 22%, although QTc >500 ms, arrhythmias, or sudden cardiac death was extremely rare. The risk of QTc prolongation with targeted therapies (eg, small molecular tyrosine kinase inhibitors) ranged between 0% and 22.7% with severe prolongation (QTc >500 ms) reported in 0% to 5.2% of the patients. Arrhythmias and sudden cardiac death were rare. Conclusions Our systematic review demonstrates that there is variability in the incidence of QTc prolongation of various cancer drugs; however, the clinical consequence, as defined by arrhythmias or sudden cardiac death, remains rare.
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Affiliation(s)
- Andreu Porta-Sánchez
- Division of Cardiology, Department of Electrophysiology, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Cameron Gilbert
- Division of Cardiology, Department of Electrophysiology, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Danna Spears
- Division of Cardiology, Department of Electrophysiology, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Eitan Amir
- Division of Medical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Joyce Chan
- Department of Pharmacy, University Health Network, Toronto, Ontario, Canada
| | - Kumaraswamy Nanthakumar
- Division of Cardiology, Department of Electrophysiology, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada
| | - Paaladinesh Thavendiranathan
- Division of Cardiology, Peter Munk Cardiac Centre, Ted Rogers Program in Cardiotoxicity Prevention and Department of Medical Imaging, University Health Network University of Toronto, Toronto, Ontario, Canada
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Chebib R, Verlingue L, Cozic N, Faron M, Burtin P, Boige V, Hollebecque A, Malka D. Angiogenesis inhibition in the second-line treatment of metastatic colorectal cancer: A systematic review and pooled analysis. Semin Oncol 2017; 44:114-128. [PMID: 28923209 DOI: 10.1053/j.seminoncol.2017.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/18/2017] [Accepted: 07/31/2017] [Indexed: 12/26/2022]
Abstract
The last two decades have seen intensive efforts devoted to the development of compounds that target angiogenesis for the treatment of metastatic colorectal cancer (mCRC). In this review, we describe supporting evidence and ongoing development of angiogenesis inhibitors in the second-line treatment of mCRC, and summarize relevant randomized trials to help therapeutic decision-making in daily practice.
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Affiliation(s)
- Ralph Chebib
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Loic Verlingue
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Nathalie Cozic
- Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Université Paris-Saclay, Paris, France; INSERM U1018, CESP, Gustave Roussy, Université Paris-Saclay, Paris, France; Ligue Nationale Contre le Cancer Meta-Analysis Platform, Gustave Roussy, Université Paris-Saclay, Paris France
| | - Matthieu Faron
- Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Université Paris-Saclay, Paris, France; INSERM U1018, CESP, Gustave Roussy, Université Paris-Saclay, Paris, France; Département de Chirurgie Digestive, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Pascal Burtin
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Valérie Boige
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Antoine Hollebecque
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France; Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Villejuif, France
| | - David Malka
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France.
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Tampellini M, Sonetto C, Scagliotti GV. Novel anti-angiogenic therapeutic strategies in colorectal cancer. Expert Opin Investig Drugs 2016; 25:507-20. [PMID: 26938715 DOI: 10.1517/13543784.2016.1161754] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Anti-angiogenetic agents are currently the standard of care in metastatic CRC patients. Bevacizumab, aflibercept, regorafenib and recently ramucirumab have significantly improved both progression-free and overall survival in different lines of treatment. Since bevacizumab's approval, a number of novel anti-VEGF agents have been tested in preclinical and clinical models. AREAS COVERED This review is focused on the most recent clinical results of novel agents targeting VEGF and its receptors with a major focus on those investigated recently in clinical trials. EXPERT OPINION In the last 15 years, a number of new anti-angiogenetic agents have been tested. Unfortunately, most of them have demonstrated unacceptable toxicities or failed to show activity. When tested as single agents, encouraging preliminary results were reported with fruquintinib, famitinib, and nintedanib. Interesting novel mechanisms of action are also being explored: VGX-100 is a monoclonal antibody (mAb) which binds to VEGF-C, inhibiting activation of VEGFR-2 and VEGFR-3 when combined with bevacizumab; tanibirumab is a mAb which binds to VEGFR-2 and vanucizumab is a bispecific mAb binding both to VEGF-A and Angiopoietin-2. Data about the combination of these agents with chemotherapy are very encouraging, even though preliminary. However, the definition of specific predictive biomarkers remains a priority.
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Affiliation(s)
- M Tampellini
- a University of Turin , Department of Oncology, AOU San Luigi di Orbassano , Torino , Italy
| | - C Sonetto
- a University of Turin , Department of Oncology, AOU San Luigi di Orbassano , Torino , Italy
| | - G V Scagliotti
- a University of Turin , Department of Oncology, AOU San Luigi di Orbassano , Torino , Italy
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Kessler ER, Eckhardt SG, Pitts TM, Bradshaw-Pierce EL, O'byrant CL, Messersmith WA, Nallapreddy S, Weekes C, Spratlin J, Lieu CH, Kane MA, Eppers S, Freas E, Leong S. Phase I trial of vandetanib in combination with gemcitabine and capecitabine in patients with advanced solid tumors with an expanded cohort in pancreatic and biliary cancers. Invest New Drugs 2015; 34:176-83. [PMID: 26715573 DOI: 10.1007/s10637-015-0316-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 12/14/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Vandetanib is a multitargeted tyrosine kinase inhibitor that affects vascular endothelial growth factor receptor (VEGF), epidermal growth factor (EGF), and rearranged during transfection (RET) mediated receptors which are important for growth and invasion of biliary and pancreatic cancers. This phase I study evaluated the safety profile of vandetanib in combination with standard doses of gemcitabine and capecitabine in order to determine the maximum tolerated dose (MTD). METHODS In this single center phase I trial, patients received gemcitabine intravenously (i.v.) at 1000 mg/m2 days 1, 8, 15 in a 28 day cycle, capecitabine orally at 850 mg/m2 twice daily on days 1-21, and escalating doses of vandetanib (200 or 300 mg orally daily). Once the MTD was defined, an expansion cohort of patients with advanced biliary cancers and locally advanced or metastatic pancreatic cancer was enrolled. Blood samples were also collected at predetermined time points for biomarker analysis. RESULTS Twenty-three patients were enrolled: 9 in the dose escalation and 14 in the dose expansion cohort. One dose limiting toxicity (DLT), of grade 4 neutropenia, occurred in the 200 mg vandetanib cohort. The most common adverse effects were diarrhea (39 %), nausea and vomiting (34%), and rash (33%). There were 3 partial responses and stable disease of >2 months (range 2-45, median 5) was observed in 15/23 patients. There was no association between changes in biomarker analytes and disease response. CONCLUSION The combination of gemcitabine, capecitabine and vandetanib is well tolerated at the recommended phase II dose of gemcitabine 1000 mg/m2 weekly for three consecutive weeks, capecitabine 850 mg/m2 BID days 1-21, and vandetanib 300 mg daily, every 28 days. This combination demonstrated promising activity in pancreaticobiliary cancers and further evaluation is warranted in these diseases. NCT00551096.
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Affiliation(s)
- Elizabeth R Kessler
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - S Gail Eckhardt
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - Todd M Pitts
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - Erica L Bradshaw-Pierce
- University of Colorado Cancer Center, Aurora, Colorado, USA.,Department of Pharmaceutical Sciences, Skaggs School of Pharmacy, Aurora, CO, USA
| | - Cindy L O'byrant
- Department of Clinical Pharmacy, Skaggs School of Pharmacy, Aurora, CO, USA
| | - Wells A Messersmith
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - Sujatha Nallapreddy
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - Colin Weekes
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | | | - Christopher H Lieu
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - Madeleine A Kane
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA.,University of Colorado Cancer Center, Aurora, Colorado, USA
| | - Sarah Eppers
- University of Colorado Cancer Center, Aurora, Colorado, USA
| | | | - Stephen Leong
- Division of Medical Oncology, Department of Medicine, University of Colorado School of Medicine, MS 8117, 12801 E 17th Avenue, Room 8120, Aurora, CO, 80045, USA. .,University of Colorado Cancer Center, Aurora, Colorado, USA.
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Mallick P, Shah P, Gandhi A, Ghose R. Impact of obesity on accumulation of the toxic irinotecan metabolite, SN-38, in mice. Life Sci 2015; 139:132-8. [PMID: 26334566 DOI: 10.1016/j.lfs.2015.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 08/19/2015] [Accepted: 08/22/2015] [Indexed: 01/21/2023]
Abstract
AIM Our aim is to investigate the impact of high fat diet-induced obesity on plasma concentrations of the toxic irinotecan metabolite, SN-38, in mice. MAIN METHODS Diet-induced obese (DIO, 60% kcal fed) and lean mice (10% kcal fed) were treated orally with a single dose of 10mg/kg irinotecan to determine pharmacokinetic (PK) parameters. Feces and livers were collected for quantification of irinotecan and its metabolites (SN-38 & SN-38G). SN-38G formation by Ugt1a1 enzyme was analyzed in liver S9 fractions. Expression of the pro-inflammatory cytokine, TNF-α was determined in liver and plasma. Hepatic β-glucuronidase and carboxylesterase enzymes (CES) were also determined. KEY FINDINGS AUC0-8 and Cmax of SN-38 increased by 2-fold in DIO mice compared to their lean controls. This was accompanied by a~2-fold reduction in AUC0-8 and Cmax of SN-38G in DIO mice. There were no differences in the PK parameters of irinotecan in DIO or lean mice. Conversion of SN-38 to SN-38G by Ugt1a1 enzyme was reduced by ~2-fold in liver S9 fractions in DIO mice. Furthermore, in DIO mice, β-glucuronidase activity increased by 2-fold, whereas there was no change in CES activity. TNF-α mRNA expression was 3 fold higher in DIO mice. SIGNIFICANCE Our study demonstrates that reduced hepatic Ugt1a activity during obesity likely contributes to reduced glucuronidation, and results in higher levels of the toxic metabolite, SN-38. Thus, irinotecan dosage should be closely monitored for effective and safe chemotherapy in obese cancer patients who are at a higher risk of developing liver toxicity.
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Affiliation(s)
- Pankajini Mallick
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, TX, USA
| | - Pranav Shah
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, Rockville, MD, USA
| | - Adarsh Gandhi
- Department of Bioanalysis and Physiology, Lundbeck Research Inc. USA, Paramus, NJ, USA
| | - Romi Ghose
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, TX, USA.
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Konda B, Shum H, Rajdev L. Anti-angiogenic agents in metastatic colorectal cancer. World J Gastrointest Oncol 2015; 7:71-86. [PMID: 26191351 PMCID: PMC4501927 DOI: 10.4251/wjgo.v7.i7.71] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 05/13/2015] [Accepted: 06/01/2015] [Indexed: 02/05/2023] Open
Abstract
Colorectal cancer (CRC) is a major public health concern being the third leading cause of cancer mortality in the United States. The availability of better therapeutic options has led to a decline in cancer mortality in these patients. Surgical resection should be considered in all stages of the disease. The use of conversion therapy has made surgery a potentially curative option even in patients with initially unresectable metastatic disease. In this review we discuss the role of various anti-angiogenic agents in patients with metastatic CRC (mCRC). We describe the mechanism of action of these agents, and the rationale for their use in combination with chemotherapy. We also review important clinical studies that have evaluated the safety and efficacy of these agents in mCRC patients. Despite the discovery of several promising anti-angiogenic agents, mCRC remains an incurable disease with a median overall survival of just over 2 years in patients exposed to all available treatment regimens. Further insights into tumor biology and tumor microenvironment may help improve outcomes in these patients.
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Papadimitrakopoulou VA, Frank SJ, Cohen EW, Hirsch FR, Myers JN, Heymach JV, Lin H, Tran HT, Chen CR, Jimeno A, Nedzi L, Vasselli JR, Lowe ES, Raben D. Phase I study of vandetanib with radiation therapy with or without cisplatin in locally advanced head and neck squamous cell carcinoma. Head Neck 2015; 38:439-47. [PMID: 25352401 DOI: 10.1002/hed.23922] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Vandetanib, added to cisplatin and radiation therapy (RT) overcomes chemoradiation therapy (CRT) and epidermal growth factor receptor (EGFR) inhibitor resistance in head and neck squamous cell carcinoma (HNSCC) lines and models. METHODS Patients with previously untreated HNSCC received vandetanib daily for 14 days (starting dose 100 mg) and then vandetanib + RT (2.2 Gy/day, 5 days/week) for 6 weeks (regimen 1) or vandetanib + RT (2 Gy/day, 5 days/week) + cisplatin (30 mg/m(2) weekly) for 7 weeks (regimen 2). The primary objective was the maximum tolerated dose (MTD) of vandetanib with RT +/- cisplatin. RESULTS Of 33 treated patients, 30 completed therapy (regimen 1, n = 12; regimen 2, n = 18). MTD in regimen 2 was 100 mg (3 dose limiting toxicities [DLTs] at 200 mg), whereas regimen 1 was stopped because of poor recruitment (1 DLT at 200 mg). Most common grade ≥3 adverse events (AEs) were dysphagia (30%), stomatitis (33%), and mucosal inflammation (27%). Five patients discontinued vandetanib because of AEs. CONCLUSION Vandetanib with CRT was feasible.
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Affiliation(s)
| | - Steven J Frank
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas
| | - Ezra W Cohen
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Fred R Hirsch
- University of Colorado Cancer Center, Aurora, Colorado
| | - Jeffrey N Myers
- Department of Head and Neck Surgery, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - John V Heymach
- Department of Thoracic Head and Neck Medical Oncology, MD Anderson Cancer Center, Houston, Texas
| | - Heather Lin
- Department of Biostatistics, MD Anderson Cancer Center, Houston, Texas
| | - Hai T Tran
- Department of Thoracic Head and Neck Medical Oncology, MD Anderson Cancer Center, Houston, Texas
| | - Changhu R Chen
- Department of Radiation Oncology, University of Toledo, Toledo, Ohio
| | - Antonio Jimeno
- Division of Medical Oncology, Department of Medicine, University of Colorado, Aurora, Colorado
| | - Lucien Nedzi
- Department of Radiation Oncology, Southwestern Medical Center, Dallas, Texas
| | | | | | - David Raben
- Department of Oncology, University of Colorado, Aurora, Colorado
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Ahluwalia MS, Patel M, Peereboom DM. Role of tyrosine kinase inhibitors in the management of high-grade gliomas. Expert Rev Anticancer Ther 2014; 11:1739-48. [DOI: 10.1586/era.11.166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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11
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Shahda S, Saif MW. Regorafenib: from bench to bedside in colorectal cancer. Expert Rev Clin Pharmacol 2013; 6:243-8. [PMID: 23656338 DOI: 10.1586/ecp.13.11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Colorectal cancer (CRC) remains the third cause of cancer-related mortality in the USA. Despite the advances in screening, many patients present with incurable metastatic disease. Chemotherapy forms the basis of treatment for patients with advanced disease. Angiogenesis is an important step in developing metastases and, therefore, blocking the VEGF pathway seems promising. The development of bevacizumab as a monoclonal antibody targeting the VEGF pathway improved progression-free survival and overall survival in the metastatic settings, with no improvement in disease-free or overall survival in the adjuvant settings. Small molecules such as tyrosine-kinase inhibitors have been long evaluated in metastatic CRC with disappointing results in improving outcome. Most recently, the CORRECT study has resulted in improved outcome in patients with metastatic CRC who were heavily pretreated when they received regorafenib.
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Affiliation(s)
- Safi Shahda
- Department of Medicine, Division of Hematology/Oncology, Indiana University School of Medicine, Indianapolis, IN, USA.
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12
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Harter P, Sehouli J, Kimmig R, Rau J, Hilpert F, Kurzeder C, Elser G, du Bois A. Addition of vandetanib to pegylated liposomal doxorubicin (PLD) in patients with recurrent ovarian cancer. A randomized phase I/II study of the AGO Study Group (AGO-OVAR 2.13). Invest New Drugs 2013; 31:1499-504. [PMID: 24005613 DOI: 10.1007/s10637-013-0011-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 08/12/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND PLD is a standard treatment in patients with recurrent platinum-resistant or refractory ovarian cancer. Vandetanib is an oral once daily administered inhibitor of VEGFR-, EGFR- and RET-signaling with activity in combination with chemotherapy in some solid tumours. We aimed to establish a feasible combination therapy of PLD and vandetanib in ovarian cancer. METHODS Eligible patients were treated with PLD 50 mg/m(2) q28 and vandetanib 100 mg/d po. It was planned to recruit at least 10 patients evaluable for toxicity over 2 treatment cycles. Primary endpoints were tolerability and safety; secondary endpoint was efficacy. RESULTS Fourteen of 15 registered patients started treatment and were evaluable for toxicity. Three patients (21%) stopped after first cycle (PD, withdrawal of consent, nausea/vomiting). The remaining 11 patients were treated for at least 2 cycles. Dose reductions of PLD and vandetanib were indicated in 4 (29%) and 5 patients (36%), respectively. The following G3/4 toxicities occurred per patient: 2 (14%) elevated liver enzymes G3, 2 (14%) neutropenia G3/4, 5 (36%) PPE G3/4, 2 (14%) mucositis G3. Tyrosine kinase inhibitor attributed side effects like hypertension or bowel perforations were not reported. Toxicity led to cessation of treatment in 4 patients (29%). Ten patients were evaluable for response: PR 1, SD 4. The median PFS was 6.7 months and median OS was 11.1 months. CONCLUSIONS The combination of PLD 50 mg/m(2)q28 and vandetanib 100 mg/d is feasible, but may be intolerable due to reported toxicity.
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Affiliation(s)
- Philipp Harter
- Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte, Henricistr. 92, 45136, Essen, Germany,
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13
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Bradshaw-Pierce EL, Pitts TM, Kulikowski G, Selby H, Merz AL, Gustafson DL, Serkova NJ, Eckhardt SG, Weekes CD. Utilization of quantitative in vivo pharmacology approaches to assess combination effects of everolimus and irinotecan in mouse xenograft models of colorectal cancer. PLoS One 2013; 8:e58089. [PMID: 23520486 PMCID: PMC3592886 DOI: 10.1371/journal.pone.0058089] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 01/31/2013] [Indexed: 12/12/2022] Open
Abstract
Purpose The PI3K/AKT/mTOR pathway is frequently dysregulated in cancers and inhibition of mTOR has demonstrated the ability to modulate pro-survival pathways. As such, we sought to determine the ability of the mTOR inhibitor everolimus to potentiate the antitumor effects of irinotecan in colorectal cancer (CRC). Experimental Design The combinatorial effects of everolimus and irinotecan were evaluated in vitro and in vivo in CRC cell lines harboring commonly found mutations in PIK3CA, KRAS and/or BRAF. Pharmacokinetically-directed dosing protocols of everolimus and irinotecan were established and used to assess the in vivo antitumor effects of the agents. At the end of treatment, 3–6 tumors per treatment arm were harvested for biomarker analysis by NMR metabolomics. Results Everolimus and irinotecan/SN38 demonstrated synergistic anti-proliferative effects in multiple CRC cell lines in vitro. Combination effects of everolimus and irinotecan were determined in CRC xenograft models using clinically-relevant dosing protocols. Everolimus demonstrated significant tumor growth inhibition alone and when combined with irinotecan in HT29 and HCT116 tumor xenografts. Metabolomic analysis showed that HT29 tumors were more metabolically responsive than HCT116 tumors. Everolimus caused a decrease in glycolysis in both tumor types whilst irinotecan treatment resulted in a profound accumulation of lipids in HT29 tumors indicating a cytotoxic effect. Conclusions Quantitative analysis of tumor growth and metabolomic data showed that the combination of everolimus and irinotecan was more beneficial in the BRAF/PIK3CA mutant HT29 tumor xenografts, which had an additive effect, than the KRAS/PIK3CA mutant HCT116 tumor xenografts, which had a less than additive effect.
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Affiliation(s)
- Erica L Bradshaw-Pierce
- Division of Medical Oncology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America.
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14
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Kieran MW, Kalluri R, Cho YJ. The VEGF pathway in cancer and disease: responses, resistance, and the path forward. Cold Spring Harb Perspect Med 2012; 2:a006593. [PMID: 23209176 DOI: 10.1101/cshperspect.a006593] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Antiangiogenesis was proposed as a novel target for the treatment of cancer 40 years ago. Since the original hypothesis put forward by Judah Folkman in 1971, factors that mediate angiogenesis, their cellular targets, many of the pathways they signal, and inhibitors of the cytokines and receptors have been identified. Vascular endothelial growth factor (VEGF) is the most prominent among the angiogenic cytokines and is believed to play a central role in the process of neovascularization, both in cancer as well as other inflammatory diseases. This article reviews the biology of VEGF and its receptors, the use of anti-VEGF approaches in clinical disease, the toxicity of these therapies, and the resistance mechanisms that have limited the activity of these agents when used as monotherapy.
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Affiliation(s)
- Mark W Kieran
- Department of Pediatric Medical Neuro-Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.
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15
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Degrauwe N, Sosa JA, Roman S, Deshpande HA. Vandetanib for the treatment of metastatic medullary thyroid cancer. Clin Med Insights Oncol 2012; 6:243-52. [PMID: 22723734 PMCID: PMC3379848 DOI: 10.4137/cmo.s7999] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Medullary thyroid cancer (MTC) represents an aggressive form of thyroid malignancy. Some may occur spontaneously or can be associated with Multiple Endocrine Neoplasia syndromes, or Familial Medullary Thyroid Cancer syndrome. In these patients, the protooncogene RET (rearranged during transfection) is mutated. In patients who have unresectable or metastatic disease, the long term prognosis is poor. New treatments for this disease have focused on the use of targeted agents that inhibit the receptor tyrosine kinase of RET. One of these treatments, Vandetanib (Caprelsa, Astra Zeneca), recently has received approval from the Food and Drug Administration for the treatment of patients with progressive locally advanced and/or metastatic disease. This review highlights the studies that led to the drug's approval, and discusses on the potential financial costs of treatment and side effects of this therapy. The main clinical studies evaluating Vandetanib for the treatment of other solid tumors will also be reviewed.
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16
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Marin JJG, Sanchez de Medina F, Castaño B, Bujanda L, Romero MR, Martinez-Augustin O, Moral-Avila RD, Briz O. Chemoprevention, chemotherapy, and chemoresistance in colorectal cancer. Drug Metab Rev 2012; 44:148-72. [PMID: 22497631 DOI: 10.3109/03602532.2011.638303] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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17
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Assessment of acute antivascular effects of vandetanib with high-resolution dynamic contrast-enhanced computed tomographic imaging in a human colon tumor xenograft model in the nude rat. Neoplasia 2011; 12:697-707. [PMID: 20824046 DOI: 10.1593/neo.10292] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Revised: 06/11/2010] [Accepted: 06/15/2010] [Indexed: 11/18/2022] Open
Abstract
Tumor size is not a reliable marker for the assessment of early antivascular effects of antiangiogenics. In the present study, we used 200-microm in-plane high-resolution dynamic contrast-enhanced computed tomography (DCE-CT) to noninvasively assess the immediate antivascular effects of vandetanib in a subcutaneous human colon cancer (LoVo) xenograft model in nude rats and to investigate correlation between changes in CT perfusion parameters and tumor volume or immunohistochemical end points. At 3 to 4 weeks after LoVo cell implantation, the animal was gavaged with either vandetanib (50 mg/kg) or vehicle twice (22 hours apart) and scanned with a preclinical DCE-CT scanner before (0 hour) and after treatment (24 hours). Quantitative maps of blood flow (BF) and volume (BV) of the tumor were calculated from the acquired DCE-CT images. The rats were divided into nonhypovascular, hypovascular, and combined (regardless of vascularity) groups. In the nonhypovascular group, significant decreases in both tumor BF and BV were observed in the vandetanib-treated rats compared with increases in the vehicle-treated rats. A significant decrease in BV was detected in the vandetanib-treated rats in the combined group as well. No differences in tumor growth, vascular endothelial growth factor expression, microvessel density, or apoptosis were observed between vandetanib- and vehicle-treated rats in all three groups. These results demonstrate that BF and BV imaging biomarkers from DCE-CT imaging can be used for rapid monitoring of immediate (24 hours after) antimicrovascular effects of vandetanib on tumors, even in the absence of significant changes of tumor volume or clinically relevant immunohistochemical end points.
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Mulder K, Koski S, Scarfe A, Chu Q, King K, Spratlin J. Antiangiogenic agents in advanced gastrointestinal malignancies: past, present and a novel future. Oncotarget 2010; 1:515-29. [PMID: 21317448 PMCID: PMC3248127 DOI: 10.18632/oncotarget.101006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 10/15/2010] [Indexed: 12/14/2022] Open
Abstract
Advanced gastrointestinal (GI) malignancies are varied in presentation, prognosis, and treatment options. With the exception of resectable recurrent colorectal cancer, metastatic GI malignancies are incurable. Cytotoxic chemotherapies have been the mainstay of therapy for decades but limited extension of survival or clinical benefit has been achieved in non-colorectal GI cancers. There has been great interest in the incorporation of antiangiogenic strategies to improve outcomes for these patients. Clear benefits have been identified with bevacizumab and sorafenib in colorectal cancer and hepatocellular cancer, respectively; other GI tumor sites have lacked impressive results with antiangiogenic agents. In this review, we will present the benefits, or lack thereof, of clinically tested antiangiogenic compounds in GI malignancies and explore some potential new therapeutic anti-angiogenesis options for these diseases.
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Affiliation(s)
- Karen Mulder
- Medical Oncology, Cross Cancer Institute, University of Alberta, Alberta, Canada
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Mulder K, Koski S, Scarfe A, Chu Q, King K, Spratlin J. Antiangiogenic agents in advanced gastrointestinal malignancies: past, present and a novel future. Oncotarget 2010; 1:515-529. [PMID: 21317448 PMCID: PMC3248127 DOI: 10.18632/oncotarget.187] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 10/15/2010] [Indexed: 11/25/2022] Open
Abstract
Advanced gastrointestinal (GI) malignancies are varied in presentation, prognosis, and treatment options. With the exception of resectable recurrent colorectal cancer, metastatic GI malignancies are incurable. Cytotoxic chemotherapies have been the mainstay of therapy for decades but limited extension of survival or clinical benefit has been achieved in non-colorectal GI cancers. There has been great interest in the incorporation of antiangiogenic strategies to improve outcomes for these patients. Clear benefits have been identified with bevacizumab and sorafenib in colorectal cancer and hepatocellular cancer, respectively; other GI tumor sites have lacked impressive results with antiangiogenic agents. In this review, we will present the benefits, or lack thereof, of clinically tested antiangiogenic compounds in GI malignancies and explore some potential new therapeutic anti-angiogenesis options for these diseases.
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20
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Progress on antiangiogenic therapy for patients with malignant glioma. JOURNAL OF ONCOLOGY 2010; 2010:689018. [PMID: 20379377 PMCID: PMC2850510 DOI: 10.1155/2010/689018] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/21/2009] [Revised: 01/25/2010] [Accepted: 02/11/2010] [Indexed: 12/27/2022]
Abstract
Glioblastoma (GBM) is the most common primary brain tumor occurring in America. Despite recent advances in therapeutics, the prognosis for patients with newly diagnosed GBM remains dismal. As these tumors characteristically show evidence of angiogenesis (neovascularization) there has been great interest in developing anti-angiogenic therapeutic strategies for the treatment of patients with this disease and some anti-angiogenic agents have now been used for the treatment of patients with malignant glioma tumors. Although the results of these clinical trials are promising in that they indicate an initial therapeutic response, the anti-angiogenic therapies tested to date have not changed the overall survival of patients with malignant glioma tumors. This is due, in large part, to the development of resistance to these therapies. Ongoing research into key features of the neovasculature in malignant glioma tumors, as well as the general angiogenesis process, is suggesting additional molecules that may be targeted and an improved response when both the neovasculature and the tumor cells are targeted. Prevention of the development of resistance may require the development of anti-angiogenic strategies that induce apoptosis or cell death of the neovasculature, as well as an improved understanding of the potential roles of circulating endothelial progenitor cells and vascular co-option by tumor cells, in the development of resistance.
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Morabito A, Piccirillo MC, Falasconi F, De Feo G, Del Giudice A, Bryce J, Di Maio M, De Maio E, Normanno N, Perrone F. Vandetanib (ZD6474), a Dual Inhibitor of Vascular Endothelial Growth Factor Receptor (VEGFR) and Epidermal Growth Factor Receptor (EGFR) Tyrosine Kinases: Current Status and Future Directions. Oncologist 2009; 14:378-90. [PMID: 19349511 DOI: 10.1634/theoncologist.2008-0261] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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