Merck and DNAtrix entered into an oncology clinical study collaboration to evaluate the efficacy and safety of DNX-2401, DNAtrix’s oncolytic immunotherapy, in combination with Keytruda (pembrolizumab), Merck’s anti-PD-1 therapy, in a Phase 2, multi-centered study of patients with recurrent glioblastoma, the most aggressive form of brain cancer for which there is no cure. DNX-2401 is a conditionally replicative oncolytic adenovirus designed to specifically target cells defective in the Retinob...