"i think it's safe to say a pdl-1 drug with bavi has been tested in humans...." (Durvalumab)
"now the nccn merck trial announced in sept 2016 with a pdl-1" (PD-1) "starts as a phase 2, not a phase 1... if there were safety issues w/ bavi and pdl-1, this trial would not be starting as a phase 2 imo."
I agree. They are bypassing a P1 trial, signalling that there were no safety issues. What I am tweaking here is that they have transferred the positive safety consideration from a PD-L1 to a PD-1, Keytruda.