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Oculis Announces Positive Top Line Results from DIAMOND Stage 1 Phase 3 Trial in Diabetic Macular Edema with OCS-01 Eye Drops
ZUG, Switzerland and BOSTON, May 22, 2023 (GLOBE NEWSWIRE) -- Oculis Holding AG (Nasdaq: OCS) (“Oculis”), a global biopharmaceutical company purposefully driven to save sight and improve eye care, today announced positive top line results from Stage 1 of its Phase 3 DIAMOND trial of OCS-01 eye drops in Diabetic Macular Edema (DME). DME is the leading cause of visual loss and legal blindness in patients with diabetes, affecting around 37 million people worldwide, with a significant number of patients left untreated due to a lack of convenient treatment options. OCS-01 Positive Phase 3 Stage 1 Top Line Results Could Signify a Paradigm Shift in DME DIAMOND (DIAbetic Macular edema patients ON a Drop) is a Phase 3, two-stage, double-masked, randomized, multi-center trial to assess the efficacy and safety of OCS-01 eye drops in DME patients. The primary objective of Stage 1 was to select the optimal dosing regimen. Stage 1 was conducted in 39 sites across the USA and Europe with 148 patients randomized 2:1 to receive OCS-01 (n=100) or vehicle (n=48) six times daily for a six-week loading phase and then three times daily for a subsequent six-week maintenance phase. Stage 1 met the primary efficacy endpoint with a statistically significant improvement in mean BCVA “Early Treatment Diabetic Retinopathy Study” chart (BCVA ETDRS) score from baseline to Week 6 versus (vs) vehicle (OCS-01: 7.2 letters vs vehicle: 3.1 letters, p=0.007) demonstrating strong visual gain in the treatment arm. The effect was sustained to Week 12 with statistical significance (OCS-01: 7.6 letters vs vehicle 3.7 letters, p= 0.016). Furthermore, there was a higher percentage of patients in the OCS-01 group who achieved =15-letter improvement in BCVA from baseline vs vehicle at Week 6 (OCS-01: 25.3% vs vehicle: 9.8%, p=0.015), which was sustained to Week 12 (OCS-01: 27.4% vs vehicle 7.5%, p=0.009). OCS-01, in this 3-month trial, has met both clinical efficacy endpoints (main BCVA change, proportion of patients with 3 lines gain) that are required for regulatory approval, if met at 12 months treatment duration. An effect on retinal thickness was also observed with a statistically significant decrease in Central Subfield Thickness (CST) at Week 6 versus baseline in the OCS-01 treatment arm (OCS-01: -63.6 µm vs vehicle: +5.5 µm, p<0.0001). The decrease in retinal thickness persisted to Week 12 (-61.6 µm vs -16.0 µm, p=0.004). OCS-01 was well-tolerated with no unexpected adverse events observed. The OCS-01 development program will continue as planned with Stage 2 which includes two global trials, each enrolling approximately 350-450 patients. Oculis expects to begin Stage 2 of the DIAMOND trial in the second half of this year. Riad Sherif, M.D., CEO of Oculis, said: “I am pleased and very encouraged that in Stage 1 of this trial, OCS-01 has met both primary and secondary endpoints in a robust and statistically significant manner. A topical agent has never demonstrated a positive result in DME. Now, OCS-01 has been validated in two different studies with consistent and repeated positive results. We remain focused on advancing with high priority the DIAMOND Phase 3 trial to Stage 2. This important milestone has the potential to bring us one step closer to providing the first treatment in the form of eye drops to patients with DME which is a devastating and blinding disease.” Arshad M. Khanani, M.D., M.A, Director of Clinical Research at Sierra Eye Associates and Clinical Associate Professor at Universityof Nevada, Reno School of Medicine, Reno, Nevada and Co-Principal Investigator for the DIAMOND trial, commented: “As a co-principal investigator of the Phase 3 DIAMOND trial, it is exciting to see the positive Stage 1 results from this trial. A 7.2 letters improvement in BCVA and a 63.6 µm reduction in CST at 6 weeks after initiating topical treatment with OCS-01 in patients with DME is clinically meaningful for treating physicians and patients. As a non-invasive treatment that has shown these positive results, OCS-01 has the potential of benefitting a large number of patients with DME if approved. I am looking forward to enrolling patients in Stage 2 of this trial.” David S. Boyer, M.D., Adjunct Clinical Professor of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles and Co-Principal Investigator for the DIAMOND trial, said: “The mechanism of DME involves both increased permeability and inflammation. Current anti-VEGFs are effective as anti-permeability agents but have no effect on inflammation. Therefore, a significant proportion of patients are sub-optimally treated with anti-VEGFs alone. If approved, OCS-01 has the potential to complement current treatment and address recalcitrant patients. Furthermore, since it is a topical agent, it has also the potential to be a first line treatment in DME, if approved. In short, I believe the impact of OCS-01 in DME could be a true game-changer.” About OCS-01 eye drops and the OPTIREACH® technology About Diabetic Macular Edema (DME) Analyst and Investor Call To access the live event online, please pre-register for the webcast here. To access the live event by phone, please pre-register for the conference call here. A replay of the webcast and accompanying slides will be available for 90 days following the event through the “Events and Presentations” page of the “Investors and Media” section of the company’s website. About Oculis For more information, please visit: www.oculis.com (1) Yau et al. Global Prevalence and Major Risk Factors of Diabetic Retinopathy, Diabetes Care 2012 Mar; 35(3): 556-564 (2) International Diabetes Federation – diabetesatlas.org Estimated diabetes prevalence worldwide in 2021: 537m, reaching 783m in 2045 Contacts Investor Relations LifeSci Advisors Media Relations Consilium Strategic Communications Cautionary Statement Regarding Forward Looking Statements This press release contains forward looking statements and information. For example, statements regarding the potential benefits of OCS-01, including patient impact and market opportunity; expectations for Stage 2 of the DIAMOND trial; the potential for OCS-01 to become the first topical and non-invasive treatment for DME; the potential for OCS-01 to complement anti-VEGF treatment; expected future milestones and catalysts; the initiation, timing, progress and results of Oculis’ clinical and preclinical studies; Oculis’ research and development programs, regulatory and business strategy, future development plans, and management; Oculis’ ability to advance product candidates into, and successfully complete, clinical trials; and the timing or likelihood of regulatory filings and approvals, are forward looking. All forward looking statements are based on estimates and assumptions that, while considered reasonable by Oculis and its management, are inherently uncertain and are inherently subject to risks, variability and contingencies, many of which are beyond Oculis’ control. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by an investor as, a guarantee, assurance, prediction or definitive statement of a fact or probability. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. The clinical data presented herein is preliminary and is subject to change, as analysis is ongoing. These results may not be reproduced in subsequent patients and clinical trials. All forward-looking statements are subject to risks, uncertainties and other factors that may cause actual results to differ materially from those that we expected and/or those expressed or implied by such forward-looking statements. Forward-looking statements are subject to numerous conditions, many of which are beyond the control of Oculis, including those set forth in the Risk Factors section of Oculis’ filings with the U.S. Securities and Exchange Commission (the “SEC”). Copies of these documents are available on the SEC’s website, www.sec.gov. Oculis undertakes no obligation to update these statements for revisions or changes after the date of this release, except as required by law.
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