Earlier quoted context omitted.
Science doesn't work like that. To get meaningful results you need a large sample size, with a control group, with patients not knowing whether they're getting the new medicine or the old medicine[1] and with doctors not knowing either. Then you need to write that up and analyse it. Many patients are happy to take part in such trials, but it's hard to get ethics panel approval. [1] you tend to test against current be…
Science is rigorous, repeatable observation . Double-blind studies and null hypotheses are excellent ways to achieve this. But case studies and low n studies are also informative - and are science. That science can only be control groups and null hypotheses is a myth. Try and tell the medical fraternity that case studies should be eliminated because they hold no meaningful result and you'll be laughed out of the room…
See also knee arthroscopy for patients with osteo arthritis - many of these surgeries were performed before a trial with a control group was possible. That trial found that people who got the sham surgery did as well as the people who got the real surgery. Case studies are lousy, often harmful, medicine.