KEYTRUDA® (Pembrolizumab) December 27, 2018April 5, 2020 RR FDA Approvals Merkel Cell Carcinoma The FDA on December 19, 2018 granted accelerated approval to KEYTRUDA® for adult and pediatric patients with recurrent locally advanced or metastatic Merkel Cell Carcinoma (MCC). KEYTRUDA® is a product of Merck & Co. Inc. Related Posts:KEYTRUDA® (Pembrolizumab)KEYTRUDA® (Pembrolizumab)KEYTRUDA® (Pembrolizumab)KEYTRUDA® (Pembrolizumab)KEYTRUDA® (Pembrolizumab)KEYTRUDA® (Pembrolizumab)