BP,
I appreciate your post. There seems to be a fair amount of pessimism at the moment on the SA board about GERN. Based on what? The drop in the share price? Why should I be concerned about the day to day or week to week share price of this company? Of what relevance is that to me as long as the basic story remains intact? As far as I can see nothing has changed to justify this pessimism. In any case, below is the best explanation I have found concerning recent events. This post makes sense to me. What do you or others think of the below analysis?
NewYorkSackExchange
I think of the MF R/R Phase 2 as attempting to meet three goals:
1) verify dose (mostly done - probably 9.4 every 3 weeks)
2) verify population (perhaps requiring a pause if, similar to Tefferi's results, not all subgroups showing efficacy) - (in progress!)
3) get approval if efficacious - (later)
The approval intent with the phase 2 seems clear based on the JNJ timeline as others have stated.
If my theory is accurate, everything so far makes perfect sense:
A) At 12 weeks they have verified Dr. Tefferi's 9.4 as the correct dose. No surprise there.
B) At 24 weeks I speculate they will reveal they have essentially verified Dr. Tefferi's subgroup where Imetelstat works (U2AF1, SF3B1, JAK2, etc?) and doesn't work (ASXL1, CALR, IDH, etc?)
C) For (B), they probably have seen data supporting this population target change already (confirming what Dr. Tefferi saw in his trial) and that is why they suspended the trial - to give time to modify the trial going forward (including verifying the adequacy of the logic/support/changes with the FDA) so they are only selecting from the appropriate population, modifying the site approvals, and of course making sure the data in the meantime continues to support this alteration
D) Assuming my guess is right, and efficacy in subpopulation is sufficient, they will continue the trial in the 2nd QTR with the modified population (which would mean they might still be hitting perhaps as high as 70% of the MF population, but could be less). *This shouldn't be a surprise to anyone who has paid attention to Geron's slides and Tefferi's speeches where it is clear Imetelstat appears to work in some types of MF and not in others.*
E) After *hopefully* finalizing all these changes and re-opening the trial, they will dose the rest of the 60-70 patients in the targeted population at 9.4 - combining that data with the initial data for patients at 9.4 who already fit the targeted population (perhaps yielding 90-100 total patients at 9.4 in the targeted population). This will be hopefully sufficient for approval (goal 3 outlined above) if sufficiently efficacious.
Again, just my guess. But makes sense to me. Again I don't expect MF R/R 9.4 dose to have as good of results as MF Phase 2 by Tefferi due to the 9.4 dose in Tefferi's initial including those with weekly the first 4 weeks....also because the R/R is a tougher population. But by carving out the portion of the population where Imetelstat doesn't appear to work (ASXL1, CALR, IDH, etc?) we may ultimately see very nice results in the targeted population where they would seek approval.
- this theory IMO would also support the:
1) 12 week not meeting target disclosure (tougher population and not working in certain subgroups - Scarlett's conservatism knowing there is likely a population adjustment and a pause would lead him to want to say this specifically IMO)
2) the odd 160 sample in the trial revision (need more than planned in 9.4 to get adequate subgroup coverage)
3) The move up of the MF frontline trial (they would now know the population to target that trial already)
http://seekingalpha.com/article/4009764 ... sing-signs