KENILWORTH, N.J. - Merck (NYSE: MRK), known as MSD outside the United States and Canada, announced the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency has adopted a positive opinion recommending approval of KEYTRUDA, Merck's anti-PD-1 therapy, in combination with chemotherapy as neoadjuvant treatment, and then continued as monotherapy as adjuvant treatment after surgery for adults with locally advanced, or early-stage triple-negative breast cancer (TNBC) at high risk of recurrence.

The CHMP's recommendation was based on results from the pivotal KEYNOTE-522 trial, which was the first Phase 3 study with an immunotherapy to show positive event-free survival (EFS) results in high-risk early-stage TNBC. As previously reported, after a median follow-up of 39 months, the KEYTRUDA regimen (neoadjuvant KEYTRUDA plus chemotherapy followed by adjuvant KEYTRUDA monotherapy) reduced the risk of events or death by 37% (HR=0.63 [95% CI, 0.48-0.82]; p

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