Martin M. McGlynn
Thanks, Greg. So today, there are 2 topics that I want to discuss: a progress being made in our 2 clinical programs and the recently completed financing. So since we discovered these stem cells, these neural stem cells, for the past 15 years we have relentlessly pursued the development of this breakthrough technology platform: The first-in-class cell-based biologic for the treatment of a broad range of debilitating diseases and disorders of the central nervous system. We are on track to obtain definitive answers to the clinical utility of these cells from 2 well-controlled Phase II proof-of-concept studies in 2017. Success in either of these Phase II studies will, in my opinion, result in significant returns to our stockholders and provide much needed hope to the spinal cord injury and AMD communities. As we are getting very close to achieving these milestones, it is essential that we have access to the capital resources needed to get the job done, which brings me to the second item that I want to discuss, the recent capital raise that we completed last week. Last year, we used approximately $27.5 million in cash to fund operations. We started the year, this year, with $25 million in the bank, but anticipate that our burn will increase this year due to our accelerating clinical trial activities. We ended the first quarter of this year with approximately $14 million cash. Market conditions from micro-cap companies to raise additional funds has been challenging for quite a while and there's little evidence that this is likely to improve in the foreseeable future. Moreover, recent clinical trial disappointments in the regenerative medicine space have exacerbated matters further. Nevertheless, despite these challenging market conditions, the importance of having access to the capital needed to keep our clinical trial agenda on track was becoming a business imperative, and we were very pleased to see strong interest from investors. We executed our capital raise and brought in approximately $23.4 million, which, when combined with existing cash resources, should enable us to continue to drive our clinical agenda closer to fruition. In terms of potential catalysts, the company has a significant number of material data releases coming out this year. If the data continue to remain positive, these data releases have the potential to move the stock. I will discuss the specifics on these releases later in the call, but I truly believe that if we successfully achieve the statistically powered clinical endpoints in our Phase II studies that are or will shortly be underway, it will move the stock significantly. But this is why I remained focused on and committed to completing the clinical trials as soon as possible. As both a shareholder and CEO of the company, I firmly believe that this financing was critical for the long-term success of the company and will generate significant shareholder value over time if we are successful in our clinical programs. I would now like to move on to discussing those clinical programs and the progress we've been making. Let me start by discussing our clinical efforts in spinal cord injury. We completed enrollment in our thoracic spinal cord injury Phase I/II study in April of last year. This was the first in-human investigation for neural stem cell transplantation in patients with spinal cord injury, and our primary objective was to obtain the necessary safety outcomes to support further development of the spinal cord injury program, and ultimately, the investigation of patients with cervical cord injury. In addition to showing safety, the interim results from the thoracic safety study have revealed signs of unanticipated sensory return in more than half of the patients. This is the first time that positive effects on sensory function have been observed in a clinical trial in which stem cells are administered into the thoracic spinal cord of a spinal cord injury patient, and our investigators are extremely encouraged. We're planning to speak to the details of these sensory changes when the 12-month outcomes are released next week. Detecting signs of sensory improvement in this study is consistent with the anatomic organization and segmental function of the thoracic spinal cord as opposed to the cervical cord, where individual segments have a larger role in controlling motor function. As of now, all 12 patients have completed their 1-year follow-up after transplantation of the cells, thereby completing the assessments planned by the study protocol. We plan to release top line results for this trial at the joint International Spinal Cord Society and the American Spinal Injury Association Annual Scientific Meeting being held in Montréal Canada, May 14 through May 16. I want to remind you that the developmental and regulatory pathway in spinal cord injury requires establishing safety in thoracic injury before testing can be initiated in the cervical injury population. The probe test of neural stem cell transplantation in spinal cord injury includes understanding the impact in cervical injury, not only because cervical spinal cord injury is more prevalent, but also because the functional motor organization of the cervical cord is different than the thoracic cord. The cervical cord will allow the ability to detect improvement in individual motor segments or function, which is not permitted in the thoracic cord due to the differences in motor control of the 2 regions of the cord. We believe that the potential of this innovative approach is best tested in cervical spinal cord injuries, and we are the first company to initiate a Phase II randomized, single-blinded, controlled proof-of-concept study, with administration of stem cells into the cervical region of the spine. As I will elaborate further, we've already dosed all 6 patients in the first cohort of this trial. As many on the call may already know, a randomized, single-blind controlled study is a study that randomly assigns patients to either a treatment or control group. The control group does not receive the actual investigation product, but follows the same evaluations as the treatment prove [ph]. The assessors in the trial do not know which group the patient has been assigned and the outcome between each group is compared at the end of the study. Having patients in a control group permits an unbiased evaluation of the effect in the treatment group. If a control is not included in the study, it is difficult to know if any effect observed in the treatment group is really associated with the investigational product or is just a placebo effect. Randomized, controlled studies are the gold standard in clinical trials and the necessary step required for most FDA registration-enabling Phase III pivotal studies. A proof-of-concept study is one that is no longer primarily focused on demonstrating safety, but instead, it's designed to demonstrate the efficacy or effectiveness of a treatment. Both of our Phase II trials are single blinded, include a control, have very objective metrics as a primary endpoint and are powered for statistical significance. The studies are designed to produce unequivocal and robust results of a clinically meaningful endpoint that should also meet regulatory requirements. We initiated our Phase II proof-of-concept study in cervical spinal cord injury in December of last year. The Pathway Study will be comprised of 3 cohorts. The first group of patients to study will be enrolled in Cohort I, with the purpose of assessing 3 escalating cell doses. Cohort I will identify the cell dose for testing in Cohort II. In Cohort II, 40 patients with no motor function below the level of injury will be randomized to either undergo HuCNS-SC transplantation or assignment to a nontreatment control. All patients in Cohort II will be evaluated according to well-established clinical assessments in spinal cord injury for 1 year. Cohort III will enroll patients who have some preserved motor function below the level of injury and will explore the same dose escalation scheme as performed in Cohort I. We believe there is value in testing neural stem cells transplantation in patients who have both complete and incomplete spinal cord injury, and the Pathway Study is designed to provide this clinical experience. The primary objective of this study is to assess whether neural stem cell transplantation can restore or improve lost motor function in the upper extremities. The Pathway Study has been making great progress. We have 6 sites actively enrolling patients and several more expected to come online shortly. In addition, 2 weeks ago we completed the enrollment of Cohort I. According to the protocol, 1 month data from all 6 subjects in Cohort I will be reviewed by the Data Monitoring Committee for safety and then the dose for use in Cohort II will be selected. Cohort I set medical history by successfully transplanting more neural stem cells in the human spinal cord than has ever been done previously. We would expect to have interim results based on 6-month data from these first 6 subjects available in the fourth quarter. Although this first cohort is not randomized and only includes 6 patients with variable cell doses, it may offer early insight into the outcomes of this approach in cervical spinal cord injury. To assist in the recruitment of potential patients for the Pathway Study, we are using a national recruiting web-based platform dedicated to our study. We have been very pleased with the results we have seen thus far. In the first 6 months, we saw over 1,500 inquiries, with over 525 of these individuals taking the time to fill out the online questionnaire. Of those 525 questionnaires, 110 were forwarded to the clinical sites for consideration to be enrolled into the trial. I think that this shows the level of interest and the support we're getting from both the patient and the physician communities. The current rate of enrollment is significantly faster than the Phase I/II study in thoracic injury and we're very encouraged to see the growing interest in our clinical research. We expect to start enrollment of Cohort II starting in June this year. We're planning to conduct an interim analysis of Cohort II when half of the randomized patients have completed 6 months of follow-up. We anticipate that the most likely outcome of the interim analysis will be to continue the study to completion in 2017. So I'd like to close the discussion of this study with an overview of the unmet medical need that exists in this indication. Today, there are approximately 1.3 million people with some form of spinal cord injury in the United States. The majority of those impacted are between the ages of 20 to 30, with most of those being males with injuries associated with vehicle accidents or sports injuries. The average cost of supporting a person with a spinal cord injury ranges from $1.5 million to $4.5 million over the patient's lifetime, depending on the nature of his or her injury. In total, this equates to more than $40 billion being spent on this indication per year in the United States. So as you can see, there's a large unmet medical need for therapies to help these victims of spinal cord injuries. The other clinical indication we are focused on is dry age-related macular degeneration, or dry AMD. Many people are familiar with wet age-related macular degeneration, or wet AMD. There are several products in the market for people suffering from wet AMD, including Eylea, Avastin and Lucentis. The market for these therapies is over $4 billion in sales today. And it is estimated that the size of the dry AMD market is about 4x that of wet AMD. Moreover, as of today, there are no approved therapies for individuals with dry AMD. Our clinical efforts are focused on the advanced form of dry AMD referred to as geographic atrophy, the underlying cause for loss of central vision. The proportion of patients with geographic atrophy is similar in size to wet AMD market and the opportunity in this large unmet need, along with our expected aging population, is very clear. We completed enrollment of our Phase I/II study in dry AMD in June of last year and the 12-month data on the last few patients will be completed soon. Interim results from the study based on the first cohort of 8 patients with severe vision impairment showed both the safety of the sales and the surgical procedure. The early data in this cohort also suggested favorable changes in the rate of progression in geographic atrophy as well as positive observations regarding measures of visual function. Because we know that the changes in geographic atrophy in the first cohort of subjects, we've decided that further analysis of the changes in geographic atrophy between the study eye and the fellow untreated eye for all subjects will be conducted by an independent reviewer. We will be releasing top line results from our Phase I/II study at a plenary session at the International Society for Stem Cell Research Annual Meeting in Stockholm this June. We are planning to initiate a Phase II proof-of-concept study in dry AMD this quarter, and the primary endpoint for this study will be the rate of geographic atrophy or GA between the study eye and the fellow or control eye in a subject. Geographic atrophy is an objective metric that will be primarily measured using a technique known as fundus autofluorescence. The primary endpoint will be examined by a masked and independent central reading center. Geographic atrophy is an appropriate endpoint for studying the Phase II trial because it not only reflects the underlying pathological changes in dry AMD, but is also a metric that can be measured in a feasible time frame of a 1-year study and should be an approvable endpoint. Other metrics of visual function will also be assessed as secondary endpoints in the study, but the pattern of changes in these other assessments of vision may not be as discreet as the rate of geographic atrophy. We considered the Phase II trial design in dry AMD, also referred to as the Radiant study, to be an opportunity to show proof of concept of a meaningful clinical change resulting from neural stem cell transplant in dry AMD. The study will enroll a total of 63 patients who will be followed for 12 months. All patients will receive a transplant of cells into their most affected eye and the untreated eye will serve as the control in the study. This design allows us to structure a much smaller trial while maintaining statistical power to show a compelling difference in the primary endpoint. We held the investigator meeting for the Radiant study last week. It was well attended with investigators and/or study coordinators from 21 sites throughout the United States. We are now working with clinical trial state sites and their respective IRBs, and we hope to have the first subject dosed in the next couple of months. We would expect to have final results from this study in 2017. So in conclusion, we will be releasing top line results for the Phase I/II trial in spinal cord injury in May and the Phase I/II trial in dry AMD in June. With respect to our Pathway Study in cervical spinal cord injury, we will be releasing interim results from the first cohort in the fourth quarter of this year, and we plan to transplant the first patient in the blinded second cohort this June. We will be transplanting the first patient in our Radiant dry AMD study within the next few months. Final results from both Phase II clinical trials are expected in 2017. So I hope you will agree that we have made significant clinical progress for both of our lead programs and are among the first in our space to solidly reach the proof-of-concept stage. Personally, I have never been more excited about the future of our clinical programs and our ability to show the therapeutic capability of HuCNS-SC sales. With that, I would now like to open the call for questions.