<<<<<"Off the top of my head, AVNR made a similar addition to their data package, got a 60 day extension, and was bludgeoned when the agency finally issued an approvable letter ">>>>
I think that's a bad analogy.
1. I loooked it up, and AVNR's drug was for something called "involuntary emotional expression disorder", not exactly a life-and-death scenaio.
2. It's not even a disease, just a symptom.
3. However it did have Priority Review (- it was not an Oncology Division drug, but was an Orphan), so the FDA originally only had 6 months, not 10 months. Even after the extension, they had 9 months total - but orBec has now gone almost 13 months.
4. Safety was the big issue, and just before PDUFA date they submitted 2 such studies, including a "thorough QT study to determine the electrocardiogram changes....."
5. I don't think safety is an issue with orBec - nothing emerged clinically.