My friend had chemo and it did shrink the tumors she had, colon and ovarian, but she also had a major hours-long surgery after doing chemo for 6 months. This was in 2020. So far she is still cancer free, as far as I know.

My aunt had cancer and had chemo and surgery, was better for a year or so, and then it came back and did kill her, though.

I guess there are so many factors as to who makes it and who doesn’t it’s hard to tell who will and who won’t.