I'd just like to point out that we can't take it at face value when drug companies say their new drug fights cancer. If we knew for sure it was a safe and effective treatment, it'd already be approved and we would have enough data to draw that conclusion. Sometimes experimental drugs do deliver on their promise, but a lot of people here seem to take it as a given and that sort of thinking has gotten us into trouble in the past.
Take the latest opioid crisis for example. A big reason we're in this mess is because pharma lobbying convinced government and doctors that their new pain meds were less addictive. They weren't. Pharma just wanted to sell more drugs. And we said ok.