On the 16th of August, 2018, the FDA updated the prescribing information for pembrolizumab (Keytruda®, Merck) and atezolizumab (Tecentriq®, Roche/Genentech) and added the requirement for the use of an FDA-approved companion diagnostic test (CDx) to determine PD-L1 levels in cisplatin-ineligible patients with locally advanced or metastatic urothelial carcinoma.
On June 19, the FDA limited the use of atezolizumab and pembrolizumab for the treatment of locally advanced or metastatic urothelial cancer patients ineligible for cisplatin-containing therapy.
On May 18, the United States (US) Food and Drug Administration (FDA) issued an alert about the decreased survival in studies with pembrolizumab (Keytruda®) and atezolizumab (Tecentriq®) as single agent first-line therapy for patients with metastatic urothelial cancer (mUCC) and low expression of the programmed death ligand 1 (PD-L1) protein.
