Merck Keytruda plus Padcev improves survival in advanced or metastatic urothelial carcinoma
Rahway: Merck, known as MSD outside of the United States and Canada, has announced positive topline results from the Phase 3 KEYNOTE-A39 trial (also known as EV-302), which was conducted in collaboration with Seagen and Astellas, evaluating KEYTRUDA, Merck’s anti-PD-1 therapy, in combination with Padcev (enfortumab vedotin-ejfv) versus chemotherapy (gemcitabine plus cisplatin or carboplatin) in patients with previously untreated locally advanced or metastatic urothelial carcinoma (la/mUC). The trial enrolled patients who may or may not be eligible for treatment with cisplatin-based chemotherapy, regardless of PD-L1 status.
In the trial, KEYTRUDA in combination with enfortumab vedotin met its dual primary endpoints of overall survival (OS) and progression-free survival (PFS), demonstrating a statistically significant and clinically meaningful improvement versus chemotherapy in patients with previously untreated la/mUC. The combination also showed a statistically significant improvement in overall response rate (ORR), a key secondary endpoint, versus chemotherapy. The safety profile of KEYTRUDA and enfortumab vedotin in this study was consistent with previously reported studies of this combination.
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