Jeffrey Nau
Analyst · Piper Sandler. Your line is open
Thank you, Dan, and thank you to everyone for joining us this morning. I’m hoping that everyone and their families are safe and healthy during this unique time in our lives. I would like to take the opportunity to acknowledge the patients, the eye care providers and staff that were involved in the ONSET-2 trial. The ONSET-2 study began enrollment in July of 2019 and completed in March of 2020. As the the coronavirus pandemic began to impact the U.S. and the health care system in general in March, we were fortunate and honored to work with such an amazing group of investigational centers and patients who continued to safely collect the clinical data needed to complete the treatment phase of this Phase III study. For those of you following along with the slide deck that we made available on our corporate website, please refer to slide number four. We are excited to be announcing today the positive outcome in our Phase III ONSET-3 clinical trial, which has been designed to investigate OC-01 nasal spray as a treatment for the signs and symptoms of dry eye disease. The ONSET-2 study met its primary endpoint with both the 0.6 milligram per ml and the 1.2 milligram per ml doses of OC-01 achieving a statistically significant improvement in Schirmer’s Score as compared to control at day 28 or week four. This result also translated into a statistically significant improvement in the secondary endpoint of mean change from baseline in Schirmer’s Score at week four in both doses, consistent with our data from the ONSET-1 trial. Benefits were also seen on a number of secondary endpoints in the 1.2 milligram per ml dose group, including the mean change from baseline on eye dryness score in the clinic environment at week four and as early as week two. Today’s news is a major milestone for the Oyster Point Pharma team as we look toward the filing of our first NDA in the second half of 2020. Please turn to Slide 5. The design of the ONSET-2 study is summarized here on Slide 5. As you will see, the ONSET study is a multicenter, randomized, double-masked, placebo-controlled Phase III trial, which we initiated in July of 2019. 758 subjects who were at least 22 years of age with an eye care provider’s diagnosis of dry eye disease were randomized to receive either 0.6 milligrams per ml or 1.2 milligrams per ml or placebo twice daily for four weeks. The primary criteria for enrollment was having an anesthetized Schirmer’s Score that was 10 millimeters or less at baseline. The primary endpoint of this study is the percentage of subjects with a 10 increase from baseline in Schirmer’s Score at week four. The anesthetized Schirmer’s test is an objective measure of the amount of tear film produced over the course of a five-minute time period by placing a strip into the lower lid margin. Key secondary endpoints include assessing eye dryness score within the clinic environment as well as the controlled adverse environment at week four. Additional secondary endpoints included assessment of inferior corneal staining as well as eye dryness score assessments in the clinic at week two and at week one. Please turn to Slide six. There are a number of important aspects of the Oyster Point clinical development program and the ONSET-2 clinical trial in general that are important to understand when interpreting the trial results. Pivotal dry eye trials have been consistently designed with placebo run-in phases. This design element is not a part of this trial and has not been required in any of our clinical trials. In the ONSET-2 study, there are no eligibility requirements for dry – eye dryness score, and therefore, subjects with a wide spectrum of symptom severity are included in the study population. So the wide spectrum of symptom severity are included in the study population. We feel that the design of the ONSET-2 study will translate into clinical trial outcomes that generally reflect real-world settings relevant to a broad population of dry eye patients. The ONSET-2 outcomes will also allow eye care practitioners to translate the clinical trial results into practice and strategize how to use this product in their treatment armamentarium. In this study, we used the National Eye Institute corneal fluorescein grading scale. And although this study is not designed to show a benefit in corneal staining, due to the confounding factors of proparacaine use at multiple visits as well as the use of a controlled adverse environment, we did see a staining benefit in the ONSET-1 trial and, therefore, will investigate staining in this trial. Please turn to Slide 7. As you see from the study demographics, the treatment groups were well balanced with regards to baseline characteristics of Schirmer’s Score and eye dryness score. Subjects' age and baseline eye dryness score represent a much healthier population than we typically see enrolled in dry eye clinical trials with an average baseline eye dryness score of 58 millimeters. The population is also consistent with dry eye disease epidemiology and that the population contains predominantly more females as compared to males. Baseline Schirmer’s Score is consistent with baseline characteristics, as seen from our previously completed ONSET-1 clinical trial. Please turn to Slide 8. Here, you see the primary endpoint indicating statistically significant percentage of subjects achieving a gain of 10 millimeters or more in both the 0.6 milligram per ml and 1.2 milligram per ml treatment groups as compared to placebo. For the responder analysis of those subjects gaining greater than or equal to 10 millimeters on Schirmer’s Score at week four, 44% of subjects in the 0.6 and 47% of subjects in the 1.2 milligram per ml treatment groups achieved a change from baseline in Schirmer’s Score at week four as compared to 26% of subjects in the control group. Please turn to Slide 9. This slide illustrates the consistent and reproducible data from both the ONSET-1 and ONSET-2 studies for this endpoint. As you see from the comparison, the control group is higher with regards to the mean change in Schirmer’s Score in the ONSET-2 study, supporting the fact that the baseline characteristics resemble that of a healthier population included in the ONSET-2 study as compared to ONSET-1. Please turn to Slide 10. Illustrated in this slide is the secondary endpoint of mean change from baseline in Schirmer’s Score at week four. As with the categorical primary endpoint, statistical significance was achieved in both 0.6 and 1.2 milligram per ml treatment groups as compared to placebo. Subjects in the 0.6 milligram per ml treatment group had a mean increase of Schirmer’s Score of 11 millimeters, while subjects in the 1.2 milligram per ml treatment group had a mean increase in Schirmer’s Score of 11.2 millimeters as compared to a mean change of 5.9 in the control group. Please turn to Slide 11. This slide again demonstrates the consistent and reproducible data as compared to the ONSET-1 study for the mean change in Schirmer’s Score endpoint. As you can see from the comparison, the control group is higher with regards to the mean change in Schirmer’s Score in the ONSET-2 study, consistent with what we see with the categorical endpoint. Please turn to Slide 12. The secondary endpoint of mean change from baseline in eye dryness score [indiscernible] per ml treatment group. And although there was a directionally significant in the 0.6 milligram per ml treatment group as compared to placebo, it’s not statistically significant. Subjects in the 1.2 milligram per ml treatment group had an average reduction in dry – eye dryness score of minus 22.5 millimeters as compared to a minus 15.8 millimeters in the control group. Please turn to Slide 13. In this slide, we see the comparison in the ONSET-1 trial, where there was statistically significant improvement in the 0.6 milligram per ml dose group and not in the 1.2 milligram per ml dose group. In ONSET-2, where we have balanced baseline characteristics, we see a clear dose response with 1.2 milligram per ml dose group performing better than the low dose. Please turn to Slide 14. The secondary endpoint of mean change from baseline in eye dryness score assessed in the clinic environment at week two was statistically significant in both the 0.6 and 1.2 milligram per ml treatments as compared to control. Subjects in the 0.6 milligram per ml treatment group had an average reduction in eye dryness score of minus 16.5 millimeters while subjects in the 1.2 milligram per ml treatment group had an average reduction in eye dryness score of minus 17.9 millimeters as compared to a mean change of minus 12.8 millimeters in the placebo group. We believe that this highlights the early benefit of OC-01 nasal spray on symptoms and will be important for patients that are seeking relief from the irritation and discomfort associated with dry eye disease. Please turn to Slide 15. Here, we see the secondary endpoint of mean change from baseline in eye dryness score assessed in the clinic environment at week one. Although there was a directional benefit at week one in both doses, neither dose was statistically significant. Please turn to Slide 16. This slide summarizes the improvement in symptom scores over time in the ONSET-2 clinical trial, where we see a consistent increase in the magnitude of effect in the 1.2 milligram per ml dose group over time with continued therapy. Please turn to Slide 17. The secondary endpoint of mean change from baseline in eye dryness score assessed in the controlled adverse environment at week four was not statistically significant on either the 0.6 or 1.2 milligram per ml treatment groups as compared to control. As you will see, the sample size of the endpoint was impacted by two main factors that affected the analysis and reduced sample size significantly. The coronavirus pandemic impacted a number of sites who did not feel comfortable putting their staff and/or subjects into the controlled adverse environment chamber as the pandemic was unfolding. In addition, a number of subjects in each group were asymptomatic and therefore did not meet the criteria for treatment for the full two hours while in the chamber. We were in contact with FDA prior to database lock and were instructed not to change our statistical analysis plan due to the coronavirus pandemic at that time. Since unmasking the database, we have discussed with the agency how to address this endpoint, and we will do so in the context of the NDA submission. Please turn to Slide 18. We do feel, however, that this rich dataset is useful in highlighting the benefits of OC-01 nasal spray for patients. The slide illustrates the symptom score assessment before the subjects entered the controlled adverse environment. As you see, subjects in the 1.2 milligram per ml treatment group had a statistically significant reduction in eye dryness score of minus 19.3 millimeters as compared to a mean change of minus 14.7 millimeters in the placebo group. What is most impressive about this statistically significant reduction in symptom score is that the last dose of OC-01 nasal spray was administered to the subject the evening before as the protocol for the chamber specifies withholding morning treatment, a time frame that could have represented as long as 15 to 18 hours prior to the symptom assessment. We believe that this illustrates the durability of the symptom reduction effect seen with OC-01 nasal spray. Please turn to Slide 19. This line graph represents mean eye dryness score in the controlled adverse environment for the full two hours that the subjects are placed in this low-humidity, high-airflow environment. As illustrated in the graph, the 1.2 milligram per ml dose group shows a persistent and significant separation from placebo that continues to flatten and separate over time. We believe that this data illustrates the ability of OC-01 nasal spray to resist environmental change in this adverse environment. This chamber simulates conditions such as one would experience in an airplane or forced air heating environment that exacerbates symptoms in many patients with dry eye disease. Please turn to Slide 20. Inferior corneal fluorescein staining in this study was assessed using the National Eye Institute fluorescein staining scale. Although this study was not designed to assess corneal fluorescein staining due to the regular administration of proparacaine for anesthetized Schirmer’s testing and the potential confounding caused by the controlled adverse environment, results indicate a directional benefit favoring the 0.6 milligram per ml dose group on inferior and nasal staining, although there was no statistical benefit in any of the corneal regions. Please turn to Slide 21. As illustrated by this slide, although not statistically significant, there was a directional benefit in all fluorescein corneal staining regions favoring the 1.2 milligram per ml dose group. Please turn to Slide 22. In summary, the primary endpoint of categorical change in Schirmer’s Score was statistically significant in both dose groups, as were a number of secondary endpoints in the 1.2 milligram per ml dose group. As stated in earlier slides, we will be discussing the secondary endpoint of mean change in eye dryness score in a controlled adverse environment at the time of the submission of the NDA. Please turn to Slide 23. We believe that the ONSET-2 trial data, with support from the results of the previously completed ONSET-1 study, will support an indication of signs and symptoms with clinically meaningful data that will be useful to the patient and the eye care practitioner. In the 1.2 milligram per ml dose group, we see a statistically significant increase in natural tear film as compared to control. In stimulating the production of natural tear film, we see a statistically significant improvement in symptoms as early as week two with increasing magnitude of effect at week four. We believe the unique mechanism of action for OC-01 nasal spray will help establish this product as an important treatment for the eye care professional. Please turn to Slide 24. This slide illustrates a summary of adverse events in the ONSET-2 study. Although we see a higher number of subjects in the treatment group experience an adverse event, these events are primarily driven by the most common adverse event of sneezing. There were no serious adverse events related to study drug. There were a similar number of ocular adverse events across all treatment groups. The number of subjects with treatment emergent adverse events leading to discontinuation across all treatment groups was less than 3% in any treatment group. Treatment-related adverse events leading to study discontinuation that were related to study drug are less than or equal to 2% in both of the treatment groups. Please turn to Slide 25. The most common adverse event was sneezing followed by cough. Nasal and throat irritation were reported in less than 15% of subjects in each dose group. This is consistent with the data from the ONSET-1 clinical trial with no newly identified safety signal. Greater than 99% of events were considered mild. Importantly, because OC-01 nasal spray spares the ocular surface, there were no events of burning or stinging on the ocular surface. There were no reports of serious adverse events related to nasal spray administration. Please turn to Slide number 26. This slide summarizes data collected from each administration from the nasal spray patient administration diary. In agreement with the adverse event data, the most common adverse events experienced in the treatment group was sneezing, which was mild in severity in more than 99% of subjects. Approximately 50% of all nasal spray administrations were associated with sneezing. A majority of subjects experienced zero to two sneezes at administrations where sneezing was noted. Sneezing was transient with the majority of sneezes occurring within the first minute following administration. Please turn to Slide 27. As you will see here, since August 2018, we have enrolled or started four clinical studies that encompass the OC-01 dry eye disease clinical development program. In January, we released the results from the MYSTIC study investigating 84 days of twice-daily dosing of OC-01 nasal spray. Oyster Point’s U.S. clinical development program consists of the ZEN bioavailability study as well as the ONSET-1 and ONSET-2 studies. With these positive results from the ONSET-2 study, we are on track to submit an NDA application to the FDA in the second half of 2020. We believe that the unique mechanism of action for OC-01 nasal spray will help establish this product as an important treatment for the eye care professional. Please turn to Slide 28. Dry eye disease is a chronic, progressive disorder of the ocular surface characterized by a loss of tear film homeostasis. This loss of homeostasis resulting in increased evaporation and/or decreased team volume over the – over time ultimately leads to irritation, inflammation and damage to the ocular surface. Dry eye disease is a complex and multifactorial disease that is difficult to treat effectively. The novel mechanism of action of OC-01 nasal spray stimulates the trigeminal parasympathetic pathway to produce natural tear film using the cholinergic receptor agonist, varenicline. Please turn to Slide 29. Currently, there is no substitute for the body’s own natural tear film. Natural tear film consists of a complex mixture of thousands of compounds with beneficial components including growth factors, anti-inflammatory compounds, lubricating and hydrating components and is inherently antimicrobial in nature. OC-01 provides therapy to the ocular surface that we believe will provide an early and sustained symptomatic relief while treating the underlying disruption of tear film homeostasis. Now I’d like to turn the call over to Oyster Point’s Chief Commercial Officer, John Snisarenko. John, please go ahead.