Phase III JAVELIN Ovarian 200 trial of avelumab did not meet endpoint in patients with refractory ovarian cancer. Merck KGaA + Pfizer its
Merck KGaA and Pfizer Inc. announced that the Phase III JAVELIN Ovarian 200 trial evaluating avelumab alone or in combination with pegylated liposomal doxorubicin (PLD), a type of chemotherapy, compared with PLD did not meet the prespecified primary endpoints of overall survival (OS) or progression-free survival (PFS) in patients with platinum-resistant or -refractory ovarian cancer.
Signals were observed in the combination arm relative to PLD, and further analyses of the trial are warranted (HR for the primary PFS endpoint for avelumab + PLD vs PLD alone: 0.78 [repeated confidence interval (RCI): 0.587, 1.244; one-sided p-value: 0.0301]; HR for the primary OS endpoint for avelumab + PLD vs PLD alone: 0.89 [RCI: 0.744, 1.241; one-sided p-value: 0.2082]; HR for the primary PFS endpoint for avelumab alone vs PLD alone: 1.68 [RCI: 1.320, 2.601; one-sided p-value: >0.99]; HR for the primary OS endpoint for avelumab alone vs PLD alone: 1.14 [RCI: 0.948, 1.580; one-sided p-value: 0.8253]; objective response, a secondary endpoint: 13.3% [95% CI 8.8, 19.0] for avelumab + PLD; 3.7% [95% CI 1.5, 7.5] for avelumab alone; and 4.2% [95% CI 1.8, 8.1] for PLD alone). No new safety signals were observed for avelumab alone or in combination, and the safety profile for avelumab in this trial was consistent with that observed in the overall JAVELIN clinical development program. The data are currently being analyzed, and detailed results will be shared with the scientific community.
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