Gilead Trodelvy Trial Misses Endpoint

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Gilead Sciences says its Trodelvy (sacituzumab govitecan-hziy) Phase 3 EVOKE-01 study did not meet its primary endpoint of overall survival (OS) in previously treated patients with metastatic non-small cell lung cancer (NSCLC). The therapy is currently FDA approved for treating certain patients with breast cancer. EVOKE-01 had been evaluating Trodelvy) vs. docetaxel in patients with metastatic or advanced NSCLC that had progressed on or after platinum-based chemotherapy and checkpoint inhibitor therapy.

In announcing the disappointing results, Gilead did note that a numerical improvement in OS in the Trodelvy-treated patients was observed in the study, including in patients with both squamous and non-squamous histology. “A more than three-month difference in median OS favoring SG [Trodelvy] was observed in a sub-group of patients non-responsive to last prior anti-PD-(L)1 therapy, representing over 60% of the trial population,” it says. “This analysis was pre-specified in the protocol, but not alpha-controlled for formal statistical testing. This magnitude of difference was not observed in the sub-group of patients with response to last prior anti-PD-(L)1 therapy.” Gilead says it will further explore potential pathways to understand the role Trodelvy may have in these patients due to the high unmet medical need.

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