Martin M. McGlynn
Analyst · Stephen Dunn, LifeTech Capital
Thanks, Rodney. So 2012 was truly an eventful year for StemCells Inc. From my perspective, the most notable aspect of the year was that we were able to report and announce very encouraging preclinical, but also clinical data for a lead product candidate, HuCNS-SC, which as you know, is our proprietary human neural stem cell. So with regards to Pelizaeus-Merzbacher disease, or PMD, a rare leukodystrophy that's characterized by imperfect growth of the myelin sheath that surrounds nerve fibers in the brain. We published the detailed results of our Phase I trial in October in the prestigious peer review journal Science Translational Medicine. But let me remind you what we reported. Firstly, it was evidence of progressive and durable denovo myelination in all 4 patients transplanted with the cells. Secondly, there were measurable gains in motor and/or cognitive function in 3 of the 4 patients in the study. And the fourth patient remained clinically stable. All 4 patients in the trial had the worst form of the disease. This is known as the colonatal form. And it is -- it's very aggressive and it advances pretty aggressively. So the children usually succumb to the disease within the first decade of life. So in that context, the gains that were observed in neurological function and reported on in Science Translational Medicine, however modest, are unexpected and provide the first demonstration of a biological effect of our cells in humans. And I would consider this to be a landmark event for StemCells Inc. Now since then, since the publication of the data, we've been diligently engaged in worldwide detailed discussions with experts in the field with regards to the design of the next study. We have made excellent progress in that regard and are planning to request a pre-protocol submission meeting with the FDA, so that we can discuss our plans and solicit their input before we submit the final protocol for a Phase II trial. With respect to spinal cord injury, several times in 2012, we reported data from our Phase I/II spinal cord injury trial, which is underway in Zürich. In May, our principal investigator, Dr. Armin Curt, reported interim safety data from the first patient cohort, showing that the cells, the procedure and the immunosuppression regimen were all well tolerated. Interestingly, he also noted the changes in sensitivity to touch were observed in 2 of the 3 patients in the cohort. And in September, Dr. Curt presented the 6 month data for the first cohort showing that 2 of the 3 patients had multi-segmental gains in sensory function compared to pretransplant baseline. And just last month, we reported that this cohort had reached 12 months post-transplant and had completed the trial. I reported at the Bio CEO and Investor Conference in New York that the 12-month assessment showed that the sensory gains first observed at the 6 month time period had persisted. In addition to that, one of the patients I converted from a complete injury to an incomplete injury, that is to say from ASIA A classification to an ASIA B classification. So now, we've dosed our first ASIA B patient, that's a patient with an incomplete spinal cord injury. However, as expected, patient enrollment has slowed down due to the relative scarcity of ASIA B patients compared to ASIA A patients. We have taken a number of steps, which we are confident will accelerate patient enrollment in our study this year. I also just want to state that given the very encouraging data coming from this Phase I/II trial, we remain fully committed to accelerating and broadening our spinal cord injury program. With respect to age related macular degeneration or AMD, we published in January the preclinical data underlying our IND. And in June, we initiated our Phase I/II trial in dry age related macular degeneration, at the Ratner Foundation up the Southwest. We will be adding a second trial -- clinical trial site shortly and we plan to add more sites later this year. And lastly, but by no means least, in July, we presented preclinical data demonstrating that our HuCNS-SC cells, restored memory in 2 animal models relevant to Alzheimer's disease. Now what is particularly striking about this data is that the results did not require a reduction in beta amyloid or tau barden that are the hallmarks of Alzheimer's disease pathology. This suggests that our neural stem cells may represent a novel therapeutic approach to this devastating disease. As Rodney mentioned, we remain in discussions with CIRM regarding the terms and conditions for a CIRM loan that would help fund our pre-clinical and IND-enabling activities for Alzheimer's. So in closing, I just want to say that given the fact that clinical data has now begun to emerge from our trials, confirming the exciting observations that we and our collaborators made in the various animal models that were used in the preclinical testing, StemCells, Inc. has reached what I would describe as a very exciting phase in its pioneering efforts to develop this neural stem cell technology. Moreover, if the early indications are proven in the Phase II trials, we will deliver on our vision of bringing a truly disruptive therapeutic to the clinic for a broad array of diseases and conditions affecting the CNS. So I thank you for your attention and I will now open up the call for questions.