You DON*T KNOW after data lock, whether you have positive or negative results. You know, when being unblinded.
That's what the whole enchilada that NWBO writes in their SEC filing is about. Telling investors what took time BEFORE Phase III trial results had been analyzed. Results were NOT available in an analyzed state right after data lock. Results were available AFTER statisticians unblinded them and NWBO could do, what you can read with red above.