I didn't find a study specifically about bevacizumab (Avastin). Sounds like this would be an important question for your oncologist. Some people find CBD can help with side effects of treatments. But you wouldn't want to use it if it reduces the effectiveness of treatment, would you? Were you thinking of using CBD for the management of side effects?
Thanks so much for the responses. It looks like it's best not to combine the two until we know more.