All told, if IDIX can pin down 320 as being the culprit behind the SAEs, I feel pretty good about the chances of ultimately rebounding from today's fall.
The way I see it there are three outcomes and these are from best to worst for IDIX
1-The SAE's are a result of a drug interaction problem. The proposed combo is dropped.
2-The SAE's are from IDX320 and the PI is dropped along with the combo with IDX184.
3-The SAE's are from IDX184 (least likely by the way) and the nuke is dropped along with the combo with IDX320. Being that IDX184 is their most advanced HCV candidate it would be the biggest loss. I find greater value in the nuke class going forward to which I'm sure you disagree.