Pharmamarketeer

Keytruda fails to improve overall survival in advanced triple-negative breast cancer

MSD has made it known that its cancer immunotherapy Keytruda (pembrolizumab) failed to meet its primary endpoint in a Phase 3 study evaluating its efficacy as a monotherapy for the second- or third-line treatment of metastatic triple-negative breast cancer (TNBC).

The company revealed that the blockbuster anti-PD-1 drug failed to show superiority in improving overall survival compared to chemotherapy (capecitabine, eribulin, gemcitabine or vinorelbine). Because this primary endpoint was never met, all other endpoints were not formally tested.

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