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FDA Grants Priority Review for XTANDI® in Non-Metastatic Castration-Sensitive Prostate Cancer with High-Risk Biochemical Recurrence

Published: 2023-08-23 10:45:00 ET

If approved, XTANDI would become the first and only novel hormone therapy approved in this earlier type of prostate cancer

NEW YORK and TOKYO, Aug. 23, 2023 /PRNewswire/ -- Pfizer Inc. (NYSE: PFE) and Astellas Pharma Inc. (TSE: 4503, President and CEO: Naoki Okamura, "Astellas") today announced that the U.S. Food and Drug Administration (FDA) has accepted and granted Priority Review for the companies' supplemental New Drug Application (sNDA) for XTANDI® (enzalutamide) for the treatment of patients with non-metastatic castration-sensitive prostate cancer (nmCSPC; also known as non-metastatic hormone-sensitive prostate cancer or nmHSPC) with high-risk biochemical recurrence (BCR). The FDA grants Priority Review to medicines that may offer significant advances in treatment or may provide a treatment where no adequate therapy exists. The Prescription Drug User Fee Act (PDUFA) date for an anticipated FDA decision is in Q4 2023.

"The FDA's granting of a Priority Review designation reinforces the need to bring new treatment options for patients with high-risk biochemical recurrent nmCSPC," said Chris Boshoff, M.D., Ph.D., Chief Oncology Research and Development Officer, Executive Vice President, Pfizer. "We believe the EMBARK data demonstrate the potential of XTANDI, if approved, to help patients earlier in the course of their disease, building on XTANDI's foundation as an existing standard of care in prostate cancer."

"Biochemical recurrence can be one of the first indicators that prostate cancer is returning or will spread, particularly among those patients that experience rapid PSA doubling times," said Ahsan Arozullah, M.D., MPH, Senior Vice President and Head of Oncology Development, Astellas. "The goal of treatment in this setting is to delay the spread of the cancer cells to other parts of the body. The addition of XTANDI to leuprolide has shown greater clinical benefit compared to placebo plus leuprolide, and we look forward to working with the FDA and other global regulatory authorities to bring XTANDI to these patients."

The sNDA is based on results from the Phase 3 EMBARK trial, which evaluated patients with nmCSPC with high-risk BCR across three study arms: XTANDI plus leuprolide (n=355), placebo plus leuprolide (n=358), or XTANDI monotherapy (n=355). The study met its primary endpoint of metastasis-free survival (MFS) for the XTANDI plus leuprolide arm, demonstrating a statistically significant 58% reduction in the risk of metastasis or death over placebo plus leuprolide (Hazard Ratio [HR]: 0.42; 95% Confidence Interval [CI], 0.30–0.61; p

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All statements made via social media sites sponsored or maintained by Enhanced Investments and its affiliates are for informational purposes only and do not constitute a comprehensive description of Enhanced Investments' investment advisory services.
Certain investments are not suitable for all investors. Before investing, consider your investment objectives and applicable fees. The rate of return on investments can vary widely over time, especially for long term investments. Investment losses are possible, including the potential loss of all amounts invested. Information provided by Enhanced Investments is for informational and general educational purposes only and is not investment or financial advice.