Astellas Pharma Inc. announced that the Center for Drug Evaluation (CDE) of the China National Medical Products Administration (NMPA) has accepted the supplemental Biologics License Application (sBLA) for enfortumab vedotin with KEYTRUDA® (pembrolizumab) as a combination therapy for the first-line treatment of adult patients with previously untreated locally advanced or metastatic urothelial cancer (la/mUC). If approved, enfortumab vedotin with KEYTRUDA has the potential to change the treatment paradigm, becoming the first combination treatment to offer an alternative to platinum-containing chemotherapy, the current standard of care in first-line la/mUC.
Urothelial cancer (UC) encompasses cancers of both the lower urinary tract (bladder and urethra) and upper tract (ureter and renal pelvis), with disease that originates in the lower tract accounting for 90% to 95% of all UC cases.i,ii Globally, approximately 614,000 new cases of bladder cancer and approximately 220,000 deaths are reported annually.iii It is estimated that approximately 93,000 people in China were diagnosed with bladder cancer and approximately 41,000 deaths were reported in 2022.iv
Ahsan Arozullah, M.D., M.P.H., Senior Vice President, Head of Oncology Development, Astellas
"Locally advanced or metastatic urothelial cancer is a life-threatening condition in China with nearly half of those diagnosed succumbing to the disease. The CDE's acceptance of our sBLA for enfortumab vedotin and pembrolizumab brings us one step closer to delivering a much-needed, innovative new treatment option for this patient population."
Professor Guo Jun, lead PI in China for the EV-302 trial, director of the Department of Melanoma and Urological Oncology at Beijing Cancer Hospital, executive board member of the Chinese Society Of Clinical Oncology (CSCO)
"In China, the recommended first-line treatment for advanced urothelial cancer is platinum-based chemotherapy, and there are currently no other treatments approved in the first-line setting. Given the efficacy brought by chemotherapy, alternate treatment options are extremely needed to extend survival benefits and potentially improve the prognosis of those patients. The results of the EV-302 study demonstrated that enfortumab vedotin in combination with pembrolizumab, as the first non-platinum first-line treatment, can achieve a clinically meaningful improvement in response rate, nearly double the median progression-free survival, and significantly improve the overall survival benefit of patients with locally advanced or metastatic urothelial cancer compared to chemotherapy."
The sBLA for the first-line use of this combination is based on results from the Phase 3 EV-302 clinical trial (also known as KEYNOTE-A39). The study found that the combination improved overall survival (OS) and progression-free survival (PFS) with statistically significant and clinically meaningful results in patients with previously untreated la/mUC compared to platinum-containing chemotherapy. The safety results were consistent with those previously reported with this combination, and no new safety issues were identified.
The NMPA is also reviewing enfortumab vedotin as a treatment for patients with locally advanced or metastatic urothelial cancer (la/mUC) who received prior treatment with a PD-1/L1 inhibitor and platinum-based chemotherapy.
The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency is reviewing the enfortumab vedotin in combination with pembrolizumab therapy, as well as Japan's Ministry of Health, Labour and Welfare (MHLW). The U.S. Food and Drug Administration approved the combination therapy in December 2023.
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