Drugs
Merck sBLA on Keytruda Dosing Option Rejected
FDA has issued Merck a complete response letter on a supplemental BLA seeking to update the dosing frequency for Keytruda (pembrolizumab) to include a 400 mg dose infused over 30 minutes every six weeks for multiple indications. The submission is based on pharmacokinetic modeling and simulation data, Merck says, adding