David Baker
Analyst · Stifel. Please proceed
Thank you, Yaron, and good morning, everybody. As Yaron mentioned, we're very excited about the prospects for ADAIR. I would like to expand on some of Yaron's points in order to explain why we think this is a unique opportunity for Alcobra and its shareholders. Stimulant drugs are the mainstay of ADHD pharmacological treatment. They are also unfortunately among the most widely misused and abused medications with nearly two million people abusing prescription stimulants annually in the U.S. alone. In recognition of that, stimulants approved for ADHD contain black box warning language, specifically identifying the high potential for abuse and dependence. What the black box warning notes and what makes the problem CNS stimulant abuse, both unique and challenging, is that the abuse and addiction risk of stimulants are not restricted to those who are prescribed the medications. Quite the contrary, published data reports that stimulants are almost twice as likely to be diverted meaning given away or sold in other medications like opioid, sleep or anxiety medications. It has been reported that between 25% and 60% of teenagers and college students with ADHD have been approached at some point to give away or sell their prescription stimulants. Not surprisingly, friends, classmates and colleagues rank as the leading source for obtaining these drugs in surveys of CNS stimulant abuses. This fact is troubling as physicians realize that even if they think they know and trust their own patient, a prescription for CNS stimulant may often be diverted to people outside their circle of care. IR stimulants are more prone to abuse than extended release stimulants. This is being documented in multiple published studies and in multiple settings. Importantly, the fastest-growing market segment year after year is that same abuse prone immediate release drug class. According to IMS data between 2010 and 2015, the total prescription count for ADHD medications in the U.S. has grown by 37% from 49 million to 67 million prescriptions and 50% of that growth went to immediate-release impediments. In 2015, 24 million prescriptions were filled in the United States for immediate release stimulants, making the public health concern about stimulant abuse far from being a niche problem. Turning to the question of routes of abuse, we found surprisingly high rates of snorting or injecting stimulants in our literature review and surveys. Multiple peer-reviewed published studies report that 40% or more people who misuse or abuse prescription stimulants do so by snorting or injecting these products. These methods of abuse drive a more rapid increase in dopamine levels that drive the subjective of reinforcing effects of these drugs. Consequently, these abuse routes are thought to bring the abuser, one step closer to addiction independence. As we described last week, we have relied on these insights to design ADAIR. ADAIR is formulated so, it cannot be readily crushed or manipulated for intranasal or intravenous abuse. The final formulation of the ADAIR product was identified through the screening of multiple prototypes, optimizing for maximal abuse deterrent effects, while maintaining a release profile that is comparable to the referenced drug in laboratory testing. We have filed patent applications, covering the chosen optimal formulation of ADAIR. Following the formulation development and optimization stages, we have also conducted extensive studies to manipulate the products to prepare for insufflation or snorting. As compared with dextroamphetamine tablets, which are easily grounded small particles, ADAIR consistently maintains viscous, clumpy texture that poses a deterrence for insufflation. Similarly, when ADAIR is extracted or manipulated to prepare it for potential injection, it forms a viscous, cloudy material that is not only visually unappealing, but resistant to syringeability through a range of needle gauges as compared to the commercially available reference drug. This extensive formulation development, optimization and product testing work was presented to the FDA recently as Yaron described a little earlier. The agency confirmed that the 505(b)(2) regulatory pathway, which involves well-defined activities was appropriate for ADAIR. As a result, we expect to submit an NDA in the second half of 2018. For those less familiar with the regulatory language a 505(b)(2) NDA application generally allows some of the safety and efficacy information on the active ingredient to come from previous studies not conducted by the sponsor. This often results in a less expensive and faster development path, compared with the traditional 505(b)(1) development application for new chemical entity. The takeaways from the meeting with the FDA were as follows. The ADAIR development path will include a single bioequivalent study in a small number of healthy adult volunteers, comparing the pharmacokinetics of blood levels of ADAIR to the commercially available reference drug. In addition, a study comparing the blood levels of ADAIR in fasting and fed states again in a small group of healthy adult volunteers will also be performed. We expect both these studies will be completed later this year. It is feasible we plan to perform a human drug liking study in a small group of experienced drug users with the intent to demonstrate reduced lighting of ADAIR when taken intranasally as compared with intranasal administration of crushed, commercially available dextroamphetamine tablet. This potential study may support the regulatory exclusivity for ADAIR once it is launched. As Tomer will explain shortly, all anticipated development activities leading up to NDA submission including the potential drug liking study, should be fully supported by Alcobra's existing cash resources. With a plan to file the NDA for ADAIR in the second half of 2018, we've initiated preliminary activities to better understand ADAIR's commercial opportunity. We're planning to hold an event next month when we will go into greater depth, describing results of these quantitative assessments. I wanted to share some preliminary highlights demonstrating the strong commercial potential for ADAIR. We've conducted several rounds of market research with high prescribing ADHD physicians, which demonstrated a strong and consistent interest in prescribing ADAIR. Physicians were generally aware of the risks of abuse and diversion with stimulants and responded favorably to published data on the extent of the problem. Most physicians also had personal experience with patients who had misused, abused or diverted their stimulants. The physicians were very interested in the ADAIR product concept and they indicated that if ADAIR was available, they would prescribe ADAIR for the majority of their patients who otherwise would receive an IR amphetamine prescription. Market research with managed-care payers representing over 100 million covered lives in the United States suggest acceptability of the product concept without intention to block access. Managed-care tends not to actively manage the largely pediatric ADHD category and our research shows that if we're not overly aggressive with our pricing strategy, managed-care is unlikely to work to minimize access to and reimbursement of ADAIR. We also have conducted preliminary consumer market research with parents of teenagers with ADHD and with young adult patients. In that research, the parents were familiar with abuse and diversion of stimulants. They were extremely favorable in their reaction to the ADAIR product profile and all interviewed parents that they would ask their physician about ADAIR if it weren’t approved product. Even more importantly, these parents indicated that they would be willing to pay a higher insurance co-pay for ADAIR than what they are currently paying for their child's IR amphetamine prescription and among the young adults currently prescribed an IR amphetamine, all were familiar with stimulant abuse and acknowledged they had been asked to divert their prescription stimulants. Our sales projections put ADAIR peak sales at greater than $300 million annually, three to four years post launch. This projection is based on estimates of penetrating less than 10% of the immediate release amphetamine segment alone and an ADAIR price set at the low end of the branded products prices. I look forward to elaborating on these market research results in our modeling during our event next month. Let me now turn over the call to Tomer for a review of the financials.