Travis Mickle
Analyst · RBC Capital Markets. Your line is now open
Thank you, Dan, and thanks everyone for joining the call today. As an introduction to those new to the KemPharm story, KemPharm is the prodrug research and development organization. Many individuals here at KemPharm working our labs and our product development have extensive experience in discovering and developing prodrugs. The best example of this is highlighted by our collective experiences at New River Pharmaceuticals. While at New River, we worked on the discovery and development of the product Vyvanse, it’s also a prodrug and it’s a multi-billion dollar ADHD product for Shire. In fact, my own contribution to Vyvanse led New River to place me as the lead inventor on the Vyvanse patent. Focusing on our technology, a prodrug in our hands any ways very simply is a chemically modified FDA approved drug, where we design and develop features to improve upon that original product. In the case of ADHD, we are trying to improve the onset and duration of effect for patients while also attempting to make the new prodrug less abusable. This is just one example of what we can do with our approach. Since this call comes quickly on the heels of our end of the year fourth quarter call, I will primarily focus most of our attention today on our data related to the IV abuse potential for the KP415 prodrug, which ties nicely to the significant advancements we had in the first quarter. On February 23, the FDA approved the new drug application for APADAZ, our prodrug of hydrocodone and acetaminophen for the short term management of acute pain. This marked the first FDA of approval of our Ligand Activated Therapy or LAT developed product. We believe this approval provides validation of KemPharm’s overall corporate vision, prodrug development, and business strategy. More importantly, for patients and physicians, the APADAZ approval should enable the market entry of what we believe is a differentiated product for the short-term management of acute pain. In addition to this approval, we also announced positive results from our pediatric and adolescent PK study with KP415. Data from the study suggested that a single ADHD efficacy trial designed with pediatric patients, may also be applicable to adolescent and adult patient population, thus potentially allowing an initial indication for all patients with ADHD ages six and up. Turning now to our study results. In the KP415.A03 trial, we assessed the abuse potential of the KP415 Prodrug after intravenous injection in recreational stimulant users. In the trial the prodrug was compared to an active control of IV d-methylphenidate and an IV placebo. The study was designed according to the most recent FDA guidelines for assessing abuse potential. In addition, the protocol was reviewed by the controlled substance staff and review division. As required for these studies, a drug discrimination phase was used to enroll these subjects – those subjects able to discriminate between d-methylphenidate and placebo. The double-blind randomized crossover design of the study included 30 subjects, who received molar equivalent doses of KP415 Prodrug, d-methylphenidate or placebo. As you can see for yourself from the data presented on this slide, I am very pleased to report this trial demonstrated incredible results. Represented on this slide on the Y axis is the at-the-moment Drug Liking VAS scores. The X axis is time; the effect from d-methylphenidate is represented in blue while the effect from KP415 Prodrug is represented in orange. Placebo has indicated in green. This scale uses a no or no effect usually associated with placebo as a score of 50. If the abuser experiences any Drug Liking or positive effect, then the scores will be higher than 50 up to a score of 100 representing the best effect. As you can see from this graph, the at-the-moment Drug Liking was very similar to placebo through the entire time course of the study out to 24 hours. The dramatic differences in Drug Liking scores were achieved due to the fact that d-methylphenidate exposure was significantly reduced following intravenous administration of the KP415 Prodrug, as compared to IV d-methylphenidate. There was little to no conversion of the KP415 Prodrug to d-methylphenidate when injected relative to the extensive exposure to d-methylphenidate after injection. The primary endpoint of this study was maximal Drug Liking or Drug Liking (Emax) as measured on the bipolar VAS scale. Our preliminary top-line stats indicate that Drug Liking (Emax) was significantly higher for d-methylphenidate versus placebo, which demonstrated the study was valid. More importantly, Drug Liking (Emax) was significantly lower for KP415 Prodrug versus d-methylphenidate and non-statistically is different for the KP415 Prodrug versus placebo. Additionally, overall Drug Liking has measured on the same scale bipolar VAS scale showed that the same results with statistical significance between KP415 Prodrug and d-methylphenidate, and no difference between the prodrug and placebo. Another typical secondary endpoint for human abuse potential study is Take Drug Again. Take Drug Again has measured on a unipolar scale, where zero equates to a subject, not willing to take the drug again and 100 days they definitely would. These are typically measured 12 and 24 hours post-dosing and can provide a rough estimate of future behaviors. For Take Drug Again, KP415 Prodrug score was statistically significant lower than that of d-methylphenidate, and which was demonstrated in that study – sorry, excuse me, which demonstrated in the study, recreational stimulant abusers would much rather inject the d-methylphenidate than the KP415 Prodrug even after a time delay. Other VAS endpoints of abuse potential not shown here including Feeling High, Good Effects, and Bad Effects demonstrated similar VAS code differences between each treatment. This profile of pharmacokinetic and pharmacodynamic effects based on preliminary analysis suggests that intravenously administered KP415 Prodrug has a little to no abuse potential when administered up to the highest safe dose in recreational stimulant abusers. As IV abuse represents potentially the greatest risk to the abuser, as well as the greatest reward, nullifying that effect is truly remarkable feature of the prodrug. Let me briefly recap some thoughts I offered on the last call related to KP415, the most advanced of our two ADHD product candidates and we believe our greatest near-term value driver. I’d also like to provide some context to the data I just described. I’ll start with the data and its importance. As seen on this slide, lower or less abuse potential is one of the key unmet needs for methylphenidate products. When we look at this data and compared to our currently – to the currently available methylphenidate products on the market, KP415 is the only potential product with data suggesting the potential for less IV abuse. Usually at this point, we get a lot of questions about abuse-deterrence. Abuse-deterrence is not what we’re seeking here, as a new molecule KP415 Prodrug is currently not scheduled and has been required by the FDA to go through a formal scheduling process. This process involves thoroughly examined abuse potential of the new molecule through human abuse potential studies as well as the stability of the new drug. As this data has been required to be produced for a potential approval, it will be placed on the label. We believe this approach to demonstrate another product may be less abusable is far more straightforward than the abuse-deterrent pathway that can lead to interpretation at times. In direct comparison, the IV data collected for KP415 Prodrug are by far best-in-class for any ADHD indicated stimulant treatment. Vyvanse is also a stimulant prodrug that underwent a similar IV app study prior to approval. These results essentially demonstrated that while Vyvanse at a lower and delayed Drug Liking effect, Drug Liking was present and significant as well as much higher than placebo. On the other hand, KP415 Prodrug is nearly equivalent to a saline injection. In spite of the Vyvanse data, the label includes the results of their study and as we know from our market research, this still currently believed by many physicians that Vyvanse is less abusable than other ADHD treatments. However, really shouldn’t be forgotten that KP415 was primarily designed to address the number of unmet patient needs over currently marketed methylphenidate ADHD treatments including onset of action, duration as well as consistency of a therapeutic effect. All of these attributes alone are significant needs in the minds of physicians together they potentially represent what could be the best-in-class methylphenidate product or even better a best-in-class stimulant product, and with the data released today we are – we believe we are several steps closer to demonstrating these benefits. The KP415 pivotal efficacy trial is the centerpiece of what we anticipate will be several value building announcements during the balance of 2018. The intent of this study is to produce data that demonstrates an onset as early as 30 minutes with a potential duration of up to 13 hours. Most current methylphenidate based ADHD products are only indicated to work up to 12 hours post-dose and in practical terms, don’t last that long. Based on current estimates, we expect that all patients will have completed the KP415 efficacy trial by the end of the second quarter of 2018 with top-line data anticipated thereafter. We are also conducting additional human abuse potential studies for KP415 Prodrug via the intranasal and oral routes of abuse. We continue to expect data later in the year, all of this human abuse potentials data will be used to support the labels of both KP415 and KP484, which in this case, gives us the best-in-class IV human abuse potential data for two KemPharm product candidates. In summary, we anticipate multiple and significant data milestones for KP415 throughout 2018 and remain on target to file a new drug application for KP415 as soon as the first quarter of 2019. The KP484 program is also moving ahead as planned with efficacy studies expected to initiate post-KP415 efficacy data. Our plan is to develop KP484 along a similar pathways KP415 with the KP484 program expected to leverage data from our current and ongoing research with KP415, including the pharmacokinetic and human abuse potential studies I just mentioned. This should allow us to progress along an expedited development timeline and towards the potential NDA in late 2019 as well as provide significant cost advantages. As we’ve stated previously, KemPharm can essentially obtain access to two completely unique markets within ADHD with about the cost of roughly one and a half development programs. Lastly, it would be remise if I didn’t offer a brief thought on this week’s announcement of the Takeda and Shire merger. This combination and the announced deal after several weeks of discussion removes a level of uncertainty while the deal still has a way to go, and it’s not expected to close for over a year, we see this action is offering some clarity in the ADHD market as well as the continued need for better treatment option. All of this does not change our intent to advance KP415 and KP484 through development while exploring various business development pathways. On a similar note, progress continues with APADAZ, as we explore a number of commercial options, partners and strategies to best optimize the value of the first approved prodrug of hydrocodone. I anticipate over the next several quarters to be able to add to these developments and to announce additional value enhancing opportunities. Our pipeline consists of multiple products at various stages of development targeting both mass market and orphan indication, our depth and diversity is uncommon for a company of our size and the progress we’re making is nothing short of exciting. With that, now let me turn the presentation over to LaDuane to discuss this quarter’s financials.