GSK and Merck, known as MSD outside the US and Canada, announced the initiation of a phase I clinical trial designed to evaluate GSK’s investigational immunotherapy GSK3174998 as monotherapy and in combination with Merck’s anti-PD-1 therapy, Keytruda® (pembrolizumab) in patients with locally advanced, recurrent or metastatic solid tumour(s) that have progressed after standard treatment.


