Merck Keytruda in combination with chemotherapy gets European nod as treatment for breast cancer
Kenilworth: Merck, known as MSD outside the United States and Canada, has recently announced that the European Commission (EC) has approved KEYTRUDA, Merck's anti-PD-1 therapy, in combination with chemotherapy for the first-line treatment of locally recurrent unresectable or metastatic triple-negative breast cancer (TNBC) in adults whose tumors express PD-L1 (Combined Positive Score [CPS] ≥10) and who have not received prior chemotherapy for metastatic disease.
Triple-negative breast cancer is an aggressive type of breast cancer. This represents KEYTRUDA's first approval in Europe in a breast cancer setting.
The approval is based on final analysis from the Phase 3 KEYNOTE-355 trial, in which KEYTRUDA in combination with chemotherapy (nab-paclitaxel, paclitaxel or gemcitabine/carboplatin) significantly improved overall survival (OS), reducing the risk of death by 27% (HR=0.73 [95% CI, 0.55-0.95]; p=0.0093), and progression-free survival (PFS), reducing the risk of disease progression or death by 34% (HR=0.66 [95% CI, 0.50-0.88]; p=0.0018) compared to chemotherapy alone in these patients. In this trial, 38% of enrolled patients had tumors expressing PD-L1 with CPS ≥10.
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