The aforementioned PV-10 phase 3 is such a trial. It would be normal and expected for trials started after Opdivo was approved as a first line therapy.
Combination trials with Opdivo or Keytruda are at this point also normal and expected in melanoma.
As to the rest, I'm rooting for anybody and everybody to produce safe and efficacious cancer drugs, ONCS included. That said, I don't see pricing and penetration being high enough to offset the combined risks of trial delay, trial failure, competition, dilution and other factors (even at the current market cap) to consider an investment. I did look at the P.I.S.C.E.S. trial design.