ASCO 2021: Pembrolizumab Plus Enzalutamide for Enzalutamide-Resistant mCRPC: Updated Analyses After One Additional Year of Follow-Up From Cohorts 4 and 5 of the KEYNOTE-199 Study
(UroToday.com) KEYNOTE-199 is a multicohort phase 2 study to evaluate pembrolizumab in mCRPC. A previous analysis of patients with RECIST-measurable (cohort 4) or bone-predominant nonmeasurable (cohort 5) disease who were chemotherapy-naive and had progression while on enzalutamide found that pembrolizumab + enzalutamide showed antitumor activity and manageable safety. Long-term outcomes are of interest with immunotherapy, and […]