Thanks for requesting evidence. This is a very important point to review!
Stupp created the SOC and Stupp says that his SOC does not extend survival in the rGBM (recurrent) setting.
In the recent video, Dr. Stupp was commenting on the current SOC that he designed. He created the current SOC and he said that the currently approved SOC therapies are not efficacious in terms of survival.
He highlights that no approved SOC treatment works for rGBM and that survival is always the same with currently approved therapies (14:36). He also mentions his view that bureaucracy obstructs new advances.