Cindy. Not sure what kind of cancer your husband has, but it's certainly easy enough for them to find out with a biopsy. My NSCLC is squamish cell carcinoma and they are treating me with Keytruda because I have positive PDL-1 markers. If your husband has negative PDL-1 markers, they should use Opdivo because it has never been tested for positive. The study I read about had 140 participants. 89 patients were on Opdivo alone and 51 were on that and cannabis. The ones who used only Opdivo, had a 37.5% effective rate and the patients who used both. Their effective rate dropped to 15.9%. That was the only study I found, so take it for what it's worth. Personally,
I think the study might be close to the same no matter which immunotherapy drug you go with because they are both in the same class with very similar side effects. I hope this has been a little helpful. Hope you get some so mb e answers soon. Brian