Rick Stewart
Analyst · Ladenburg Thalmann. Your line is open
Thank you, Jaime. This quarter has been focused on the continuing data analysis of the ORCA-1 Phase IIb trial, which we announced in June, also on presenting the clinical trial results to smoking cessation key opinion leaders in the US and Europe and on preparations for the Phase III clinical trial. Our goal is to build on the success of the ORCA-1 trial and use that experience to optimize the design of the Phase III ORCA-2 and ORCA-3 trials. In May 2018, at an end of Phase II meeting, the FDA agreed in principle to proposed Phase III protocols. Based on the results and the experience of the ORCA-1 trial, we've made some modifications to the protocols and we're meeting with the FDA in the fourth quarter to discuss these amendments before moving forward. We'll talk in more detail later about the current Phase III trial designs. Highlights of the third quarter include five key items. Number one; we held our first Investor Day in New York on September 20, with key opinion leaders in the field of smoking cessation and nicotine addiction. Number two; we presented the final data from the ORCA-1 Phase IIb study and a detailed presentation of the exceptional ORCA-1 compliance rates at the Society for Research on Nicotine and Tobacco or SRNT European annual meeting. Number three; we concluded the maximum tolerated dose or MTD study, demonstrating single administration the safety of cytisinicline at 30 milligrams, which is 10 times higher than the intended commercial dose. Number four; we continued our progress on activities related to our Phase III development program, including finalizing the study protocols, as well as manufacturing drug and packaging for the trials. And finally, number five, we engage in further discussions with potential development partners for commercialization of cytisinicline. I'll now discuss these in more detail. Firstly, the Investor Day, which was a great success. And if you're not listening to the audio webcast that is posted on our website, I strongly encourage you to do so. Our esteemed panel in smoking cessation experts, included Dr. Mitch Nides who is the principal investigator on the ORCA-1 study, Mitchell Nides, Dr. Nancy Rigotti from Mass General and a member of the ORCA-1 data safety monitoring committee, Dr. Judith Prochaska from Stanford University, and Dr. Scott Leischow from Arizona State University. The event was moderated by Michael Higgins from Ladenburg Thalmann and Jason McCarthy from Maxim Group. The meeting highlighted the efficacy, safety and compliance of cytisinicline in the ORCA-1 trial and the importance of bringing cytisinicline to patients urgently. One of the key messages was the current difficulty that physicians have in persuading smokers to use Chantix, give them safety and tolerability perceptions of that treatment. A new option like cytisinicline demonstrating the safety and efficacy we saw in ORCA-1 would give smokers a new treatment option, and importantly, new Hope and moving forward with another quit attempt. It was an excellent opportunity to hear directly from leaders in the field of smoking cessation, and their opinions on the ORCA-1 results was the relevance of cytisinicline for future patients and their physicians who want new treatment options for smoking cessation and nicotine addiction. We also disclose join the event that we are considering a clinical study in e-cigarette users and vapors. [indiscernible] clearly highly topical right now given the controversy about the vaping epidemic in youth and the increasing number of reports of vape related lung disease. There are approximately 34.5 million cigarette smokers in the US, according to the Centre of Disease Control, with a consistent decline in the number of cigarette smokers to around 14% of the US population. In contrast, the number of e-cigarette users in the US continues to grow. And as reported in the Annals of Internal Medicine in 2018, has reached nearly 11 million users, of which nearly half are under the age of 35. While e-cigarettes have historically been viewed as safer than combustible cigarettes, long-term safety of e-cigarettes remains unproven, and usage often leads to a substitute form of nicotine addiction. Nicotine content in e-cigarettes can be higher than combustible cigarettes with a risk of rapid addiction and new users. If e-cigarettes are banned or their availability is restricted, as we are seeing currently in the US, the risk is that former smokers revert back to cigarette smoking and vapors, who have never smoked, but are now nicotine addicts are potentially driven to cigarette smoking, to fulfill their habits. There needs to be a further option for nicotine addicts and we believe cytisinicline could help address this emerging issue. Discussions about cytisinicline study in e-cigarette users are in the early stage and we have been encouraged by the enthusiasm of potential investigators and also by sources of non-diluted financing for this Study. We will keep you updated as we can the discussions continue. Secondly, and also in September, we presented final ORCA-1 Phase IIb data at the SRNT Europe Conference in Oslo. Dr. Anthony Clarke made two presentations, the first with a focus on overall quit rates and odds ratios compared to placebo. And the second review of our methods used to achieve impressive compliance rates of 98%, as observed in the three milligrams three times daily treatment arm. The final day presentation covered the efficacy rates, and in particular odds ratios, odds ratios are used to measure the treatment effect compared to placebo, and also in helping compare results between trials. The odds ratios reported in US patients in the EAGLES study were 1.64 nicotine replacement therapies or NRT and 2.7 for Chantix. This mean that NRTs was 1.6 times more effective than placebo and helping people to quit smoking, and Chantix was 2.7 times more effective. In the ORCA-1 trial, using three milligrams three times daily, we achieved an impressive odds ratio of five, meaning cytisinicline was five times more effective than placebo for smoking cessation. This remarkable efficacy is one of the main reasons smoking cessation opinion leaders are so enthusiastic about cytisinicline. If we can sustain the odds ratios in larger Phase III clinical trials, we'll have an efficacy advantage over existing treatments, in addition to cytisinicline's favorable safety profile. As we discussed previously, the safety profile cytisinicline has continued to demonstrate its potential to be best in class compared to current oral prescription therapies. Overall, in subjects treated with scientists cynically in all individual adverse events reported in ORCA-1 were below a lower rate of 10% with no serious adverse events reported. By comparison, the varenicline or Chantix trials report double digit adverse events, such as near 30% rate of nausea. Turning now to the maximum tolerated dose study which was successfully completed in September, in this Phase I study, we were unable to find a maximum tolerated dose. That is a single dose of cytisinicline that led to a predefined dose limiting adverse events. It is important to stress that this study did not evaluate efficacy. It was intended to identify what amount of cytisinicline to be taken in a single dose without triggering serious adverse events. This study was a standard requirement by FDA for the NDA, and was intended solely for safety reasons, in case a patient exceeded the recommended dose. The starting dose was six milligrams, which increased in three milligram increments up to 30 milligrams or 10 times the expected commercial dose. This dose, the stopping criteria of serious or severe adverse events were still not met, but the data safety monitoring committee recommend stopping the study. It should be noted that varenicline or Chantix is dosed at its maximum tolerated dose or one milligram which is likely one of the reasons for its safety profile and patient compliance. We plan to review the results with the FDA to determine if further escalation beyond 30 milligrams will be required. Moving on to Phase III trial preparations, as you would expect, significant effort is ongoing to prepare for the upcoming coming Phase III trials. Clinical trial medication has been manufactured and packaging will occur over the next several weeks to allow for Phase III clinical development early next year. Detailed discussions with a Contract Research Organization and investigators are underway. And we will be meeting with the FDA this quarter to review and finalize protocols. The data analysis from ORCA-1 has been the driving force behind specific modifications to the Phase III trial design, and also prior discussions with the FDA. We believe that the modified Phase III trial design will address three areas discussed with FDA related to number one, evaluating higher doses of cytisinicline for higher quit rates. Number two, simplifying the dosing schedule for compliance and number three, increasing the treatment duration for more durable efficacy. ORCA-1 answered the first two items, showing the three milligrams three times a daily is the optimum dose for quit rates. The third item will be addressed by the Phase III trials, where we are planning to increase the dosing period from 25 days to 42 days or roughly from four weeks to six weeks. Why a longer dosing period? Feedback from subjects in the trial was strongly in favor of extending the treatment period. They felt that additional benefit could be obtained from prolonging the duration of therapy and associated behavioral support, which might increase chances for a successful quit. It was quite clear in the ORCA-1 trial that there were a number of patients who are trying really hard to quit and reduced their cigarette smoking to almost zero. According to the trial rules that required 100% abstinence, they were considered to be failures and did not have the opportunity to succeed because the treatment period was too short at only 25 days. Our thinking is to give near quitters a chance to succeed by extending the treatment period. We believe this also addresses an FDA request for evaluating repeated or a longer treatment period by adding an extension period of another six weeks. This will also reduce treatment relapse for those patients who quit, or who could gain additional benefit from an extended treatment period. We saw a number of patients across all treatment arms that achieved abstinence, but then relapsed upon the removal of the study drug we believe there may be a lesser chance of relapse the longer a patient is on treatment. Additionally, extending the treatment period to six weeks allows us to measure the FDA agreed upon approval endpoint of four weeks continuous abstinence during the last four weeks of treatment, instead of four weeks post treatment, as was done in ORCA-1. Given our historical dosing of 25 days who is option to measure this endpoint on treatment, however, by extending dosing to six and 12 weeks, we are now able to measure abstinence while patients are still in treatment, which we believe may lead to higher overall quit rates. In theory, this will give us two chances of winning, one, at six weeks of treatment and the other at 12 weeks. The opinion leader response was overwhelmingly positive on these trial design modifications. Finally, we're continuing discussions with potential commercialization partners. These discussions are proceeding well and have been dependent on the ORCA-1 results and the Phase III trial plans. There is an obvious global partnering opportunity, which in the case of Chantix in 2018 represents roughly $1.1 billion in revenues. The US opportunity alone represents 77% or $838 million. I think it's fair to say that we assess the market in a similar way, with an overwhelming majority of revenue potential coming from the US market, and roughly 23% from the rest of the world. We have partnering interest in South Korea, New Zealand and Australia and Canada, with ongoing discussions which are progressing well. However, our main commercial activities have been focused on the US market opportunity and achieves overall commercial planning. We look forward to sharing additional details in the future as our plans for commercialization progress. I'd now I can turn the call over to John to review our third quarter financial results.