... In the early 1980s, clinical trials showed that laetrile had no appreciable anticancer effect in humans and that it was also toxic. (The reason, of course, is the cyanide.) In science-based medicine, that would have been that. The treatment would have been abandoned. But that’s not how alternative medicine works....
Read more: No alternative medicine ever disappears when shown to be ineffective: The case of laetrile – Respectful Insolence