At five years, KEYTRUDA plus LENVIMA showed a 16.7% overall survival (OS) rate for these patients with mismatch repair proficient (pMMR) advanced endometrial carcinoma versus 7.3% for chemotherapy alone in the pivotal Phase 3 KEYNOTE-775/Study 309 trial Five-year OS results in the pMMR subgroup were consistent with the all-comers study population, which demonstrated an OS rate of 19.9% for KEYTRUDA plus LENVIMA versus 7.7% for chemotherapy Merck (NYSE: MRK), known as MSD outside of the United States and Canada, and Eisai today announced long-term follow-up data continued to show durable benefit of KEYTRUDA ® (pembrolizumab), Merck’s anti-PD-1 therapy, plus LENVIMA ® (lenvatinib), the orally available multiple receptor tyrosine kinase inhibitor (TKI) discovered by Eisai, compared to chemotherapy for patients with advanced endometrial carcinoma following at least one prior platinum-based regimen in any setting. The findings, based on five years of follow-up from the Phase 3