There have been no claims from anyone, not even anyone from RDGL, that anyone in the initial India human trial has been cured of cancer. In fact, it appears many, if not all of the initial ten patients, per the selection criteria, are suffering metastatic cancer and there was never an expectation that Radiogel would cure their cancers.
As far as anecdotes of cherry picked, uncontrolled IsoPet treatments, those are completely irrelevant to the approval process. FDA needs controlled data, not anecdotes.