Astellas Pharma Inc. (TSE:4503, President and CEO: Naoki Okamura, “Astellas”) and Seagen Inc. (Nasdaq: SGEN) today announced positive topline results from the Phase 3 EV-302 clinical trial (also known as KEYNOTE-A39) for PADCEV® (enfortumab vedotin-ejfv) in combination with KEYTRUDA® (pembrolizumab) versus chemotherapy in patients with previously untreated locally advanced or metastatic urothelial cancer (la/mUC), a form of bladder cancer that has spread to surrounding organs or muscles, or other parts of the body. The EV-302 trial enrolled patients with previously untreated la/mUC who were eligible for cisplatin- or carboplatin-containing chemotherapy regardless of PD-L1 status.
The EV-302 study met its dual primary endpoints of overall survival (OS) and progression-free survival (PFS), compared to chemotherapy. An Independent Data Monitoring Committee determined that OS crossed the pre-specified efficacy boundary at interim analysis. The safety results of the combination are consistent with those of enfortumab vedotin in combination with pembrolizumab previously reported in cisplatin-ineligible patients with la/mUC.
Ahsan Arozullah, M.D., M.P.H., Senior Vice President, Head of Oncology Development, Astellas
“We are thrilled that the topline results of the EV-302 study demonstrated that the combination of enfortumab vedotin and pembrolizumab improved the dual primary endpoints of OS and PFS. Patients living with metastatic urothelial cancer are in dire need of additional treatment options and this combination has the potential to advance the standard of care. We are extremely grateful to all of the patients who participated in this trial.”
Roger Dansey, M.D., President, Research and Development, Seagen
“This study has the potential to be practice changing and offer a new standard of care for first-line metastatic bladder cancer. We look forward to presenting the results at an upcoming medical conference and discussing with regulators in order to get this medicine to patients as soon as possible.”