MIC DROP - FDA approves drugs all the time based on just single Arm studies without a control group for improvements much less than survival benefit at 5 years. The fact that we have so many patients alive at 5 years (real GBM patients, the new definition) when most doctors know how unlikely this is in real life. Below is an example, I can post countless others. So stop your yapping.
"The approval itself was based on a single-arm study showing an overall response rate of 31.7% in 106 ovarian cancer patients who’d received between one to three previous systemic treatments. Researchers saw five patients achieve a complete response and a median duration of response of 6.9 months."