RE:RE:RE:RE:TIGIT class of checkpoint inhibitors fails with Keytruda At Genentech, Mellman oversaw the discovery and development of Tecentriq — the checkpoint inhibitor that is central to Roche’s oncology portfolio – Lunsumio, and the company’s anti-TIGIT program. ONCY has been instrumental in revealing how pelareorep is synergistic with PD-(L)1 checkpoint inhibitors, such as with Roche's PD-L1 Tecentriq.