IMO your post on ORR potential dating is very alert.(6 cycles X 21 days from the final enrollment date)
I might add that theoretically it is possible to release ORR without "unblinding". If the SOC is 6% and PPHM sees gross ORR numbers way way in excess of SOC they could release them in a preliminary fashion if they chose. Those percentages would logically only get better after unblinding and segregating to the Bavi arm of the trial.
They did something similar in front line NSCLC when they wanted to get results out before a particular date even though they were not 100% complete.