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Exelixis Announces Encouraging Results for Cabozantinib in Combination With Atezolizumab in Metastatic Castration-Resistant Prostate Cancer
Data from the COSMIC-021 trial will be presented on Thursday, February 13, 2020 at the American Society of Clinical Oncology’s Genitourinary Cancers
About this update from Exelixis, Inc.
[{"type":"text","content":"\nData from the COSMIC-021 trial will be presented on Thursday, February 13, 2020 at the American Society of Clinical Oncology’s Genitourinary Cancers Symposium\n\n ALAMEDA, Calif.--(BUSINESS WIRE)--\nExelixis, Inc. (NASDAQ:EXEL) today announced encouraging results from the metastatic castration-resistant prostate cancer (CRPC) cohort of COSMIC-021, the phase 1b trial of cabozantinib (CABOMETYX®) in combination with atezolizumab (TECENTRIQ®) in patients with locally advanced or metastatic solid tumors. The data will be presented on Thursday, February 13th during Poster Session A: Prostate Cancer at 11:30 a.m. – 1:00 p.m. PT and 5:30 – 6:30 p.m. PT at the 2020 American Society of Clinical Oncology’s Genitourinary Cancers Symposium (ASCO GU 2020), which is being held in San Francisco, California, February 13 – 15, 2020.\n\n\nUpon enrollment, patients had to have measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST v. 1.1) and had progressed on prior novel hormone therapy and could have received prior docetaxel for hormone sensitive disease. Forty-four patients were included in this interim analysis. The median follow up was 12.6 months. The objective response rate (ORR) per RECIST v. 1.1, the trial’s primary endpoint, was 32%, including two complete responses and 12 partial responses. Disease control rate was 80%. Among the 36 patients with high-risk clinical features including visceral metastases and/or extra-pelvic lymph node metastases, the ORR was 33%. Median duration of response for all responding patients was 8.3 months. Among 12 patients who had an objective response and at least one post-baseline prostate-specific antigen (PSA) evaluation, 67% had a PSA decline of at least 50%.\n\n\n“Given the poor prognosis for men with metastatic castration-resistant prostate cancer, measurable visceral disease and/or extra-pelvic lymph node metastases who have progressed on novel hormone therapies, we are excited to observe clinically meaningful activity with the combination of cabozantinib and atezolizumab in this COSMIC-021 cohort,” said Neeraj Agarwal, M.D., Professor, Huntsman Cancer Center, University of Utah, and an investigator of the trial. “Emerging data suggests a tolerable safety profile and encouraging efficacy for this combination that may hold promise for these patients with limited treatment options...