Merck Ends Development of Two Experimental Cancer Drugs

Merck (MRK) decided to discontinue two clinical development programs, namely KeyVibe and KEYFORM, which are evaluating its investigational cancer drugs vibostolimab and favezelimab, respectively.Merck’s decision followed a series of setbacks for both drugs, which were being tested in combination with its blockbuster drug Keytruda for various cancer indications across multiple late-stage studies. After a detailed review of data from the clinical studies on both drugs, management has decided to focus on its o ...