Age Related Macular Degeneration

SBT-589 showed mitochondrial protection across models of Friedreich's ataxia SBT-589 displayed cardioprotective effects in aggressive mouse model of FA cardiomyopathy Ongoing studies are expected to build on these insights as SBT-589 progresses through developmental stage-gates NEEDHAM, Mass., March 19, 2024 /PRNewswire/ -- Stealth BioTherapeutics Inc. (the "Company" or "Stealth"), a clinical-stage biotechnology company focused on the discovery, development, and commercialization of novel therapies for diseases involving mitochondrial dysfunction, announced today the presentation of new SBT-589 data demonstrating cardioprotective effects across pre-clinical models of Friedreich's ataxia (FA). The data were presented at the Wellcome Trust Conference on Mitochondrial Medicine – Therapeutic Development, held March 18-20, 2024, in Cambridge, England. FA is a chronic disease of metabolic disruption that is typically diagnosed in childhood or adolescence, is inexorably progressive and usually results in premature death from cardiomyopathy or heart failure. There are no approved therapies for the progressive cardiomyopathy, which is linked to severe mitochondrial dysfunction, and is the leading cause of early death in this devastating disease. SBT-589 is a promising novel molecule that acts on mitochondrial pathways essential for cellular health and energy production that are impaired in FA cardiomyopathy. To evaluate the potential of SBT-589 in FA, a series of studies were conducted in FA patient-derived cells, isolated heart mitochondria, and an aggressive mouse model of FA cardiomyopathy. SBT-589 improved bioenergetics in FA patient-derived cells and mitochondria. In an FA mouse model with prominent cardiac hypertrophy and aggressive mortality, mice treated with once-daily SBT-589 displayed significantly reduced cardiac hypertrophy and a delay in the onset of mortality compared to vehicle-treated mice. "Mitochondrial dysfunction is a central contributor to pathology in Friedreich's ataxia, a disease in which heart failure and sudden cardiac events are among the leading causes of mortality," said David A. Brown, Senior Vice President, Discovery. "Mitigating heart disease in FA is central to Stealth's ongoing efforts to improve the lives of individuals with FA. The new findings presented today support continued development of SBT-589 as a potentially disease-modifying therapy to address the unmet need in cardiomyopathy associated with Friedreich's ataxia." The data were presented by Dr. Laura E. Kropp, Senior Manager of Discovery Biology at Stealth, and recipient of the Keith Michael Andrus Cardiac Award from the Friedreich's Ataxia Research Alliance. About Friedreich's Ataxia Friedreich's ataxia is a rare genetic disease affecting an estimated 1 in 50,000 individuals in the United States. The disease is caused by a defect in the frataxin gene resulting in a relative deficiency of frataxin, leading to mitochondrial iron accumulation and oxidative stress. More than 90% of patients with Friedreich's ataxia experience progressive cardiomyopathy which usually becomes fatal by early adulthood and is the leading cause of early mortality. About Stealth BioTherapeutics Stealth BioTherapeutics is a clinical-stage biotechnology company focused on the discovery, development, and commercialization of novel therapies for age-related and rare genetic diseases involving mitochondrial dysfunction. The Company is initiating Phase 3 clinical trials of elamipretide, its lead investigational product candidate, in dry age-related macular degeneration. Elamipretide is also being tested in a fully enrolled Phase 3 clinical trial in primary mitochondrial myopathy, a rare skeletal myopathic disease caused by nuclear DNA mutations, and is the subject of a New Drug Application for Barth syndrome, an ultra-rare cardioskeletal disease. The Company is evaluating its second-generation clinical-stage candidate, SBT-272, for ophthalmic and neurological disease indications. The Company has a deep pipeline of novel mitochondria-targeted compounds under evaluation as therapeutic product candidates. Several of these lead compounds, including SBT-589, have progressed through pre-clinical development stage-gates and toward IND-enabling studies. Investor Contact Kendall Investor Relations Adam Bero, Ph.D. [email protected] [email protected] Media Contact Anna Stallman Communications Anna Stallman [email protected] SOURCE Stealth BioTherapeutics Inc.

Pictured: Sign above the entrance of a U.S. courthouse/iStock, Mariakray The U.S. Court of Appeals for the Second Circuit on Monday overturned a lower court’s decision on the antitrust case between Regeneron and Novartis regarding their respective anti-VEGF eye treatments Eylea (aflibercept) and Lucentis (ranibizumab). The appellate court sided with Regeneron, agreeing with the pharma that a district court had wrongly dismissed its antitrust claims against Novartis because anti-VEGF therapies sold in pre-filled syringes (PFS) constitute their own and distinct market versus therapies sold in vials. The lower court approached the case believing that vials and PFSs operated in the same market and therefore applied the wrong legal standard, Circuit Judge Barrington Parker wrote in Monday’s decision. “The district court focused on the functional similarities between the PFS and vial versions of Regeneron’s and Novartis’s respective anti-VEGF treatments and concluded that, because of those similarities, both versions compete in the same relevant market,” Barrington wrote. “The pivotal issue in this appeal is whether anti-VEGF medications in vials and PFSs compete in the same or different product market,” Barrington wrote, adding that the court agrees with Regeneron’s assertion that anti-VEGF therapies administered through PSFs “constitute their own product market—distinct from the market for vials.” A Regeneron spokesperson in a statement to Reuters said that the company is “encouraged by the Second Circuit’s decision.” Novartis, meanwhile, said it was “disappointed with the court’s ruling,” adding that it continues “to believe Regeneron’s claims lack merit.” Regeneron’s Eylea and Novartis’ Lucentis are anti-VEGF therapies that work by slowing the growth of abnormal blood vessels in the eye, targeting several ophthalmic diseases such as wet age-related macular degeneration and retinal vein occlusion. Originally, anti-VEGF therapies were dispensed in vials and would be administered via an injection. According to Monday’s court document, this process was “cumbersome” and could aggravate the risk of complications when done incorrectly. Regeneron in 2005 collaborated with contract manufacturing company Vetter to develop a PFS syringe of Eylea, which would make administration safer and more convenient. However, the pharma alleges that Vetter “confidentially entered into a similar agreement with Novartis” in 2009, which eventually culminated in a patent covering a PFS product containing an anti-VEGF therapy. Novartis and Vetter then allegedly engaged in other “anti-competitive steps” to “keep Regeneron out of the anti-VEGF PFS market,” which pushed back the launch of Eylea’s PFS product to 2019. Regeneron sued Novartis in July 2020 based on these allegations, according to the court document on Monday. Tristan Manalac is an independent science writer based in Metro Manila, Philippines. Reach out to him on LinkedIn or email him at tristan@tristanmanalac.com or tristan.manalac@biospace.com.

MELBOURNE, Australia and PRINCETON, N.J., March 19, 2024 (GLOBE NEWSWIRE) -- Opthea Limited (ASX:OPT; NASDAQ:OPT; “Opthea”), a clinical-stage biopharmaceutical company developing novel therapies to treat highly prevalent and progressive retinal diseases, today announced it will host a virtual key opinion leader (KOL) event on Wednesday, April 3, 2024, from 10:00 to 11:30 am ET, featuring presentations from global retina experts: Arshad M. Khanani, MD, MA, FASRS, Sierra Eye Associates and University of Nevada, Reno School of Medicine Charles C. Wykoff, MD, PhD, Retina Consultants of Texas and Blanton Eye Institute, Houston Methodist Hospital Veeral S. Sheth, MD, MBA, FASRS, FACS, University Retina and Macula Associates, University of Illinois at Chicago This event will focus on the potential of sozinibercept to transform patient outcomes by delivering superior vision gains in wet age-related macular degeneration (wet AMD), with KOL perspectives on (1) the wet AMD treatment landscape and unmet medical need addressed by sozinibercept’s novel mechanism of action, (2) the Phase 2b data demonstrating superiority in combination with standard-of-care therapy, and (3) the company's two ongoing global Phase 3 registrational trials (COAST and ShORe) evaluating sozinibercept in combination with standard-of-care VEGF-A inhibitors. Additionally, Opthea will provide a strategic outlook. A live question and answer session will follow the formal presentations. To register for this live webcast, click here. A replay of the webcast will be made available on the Company’s website. About Arshad M. Khanani, MD, MA, FASRS Arshad M. Khanani, MD, MA, FASRS is dedicated to advancing innovative treatment options for patients suffering from retinal diseases. Over a decade ago, he established the clinical research department at Sierra Eye Associates, which has since evolved into one of the foremost clinical research sites nationwide. With a wealth of experience, he has assumed the role of principal investigator for more than 120 clinical trials, consistently ranking as a top enroller in the nation across multiple Phase 1-3 trials. Notably, Dr. Khanani recently chaired the Phase 3 GATHER2 steering committee for IZERVAY™, playing a pivotal role in IZERVAY's approval for geographic atrophy. His contributions extend to over 100 authored or contributed scientific publications in prominent ophthalmology journals. Dr. Khanani actively participates as a member of national and international clinical trial steering committees, in addition to serving on scientific advisory boards. Dr. Khanani also serves as the lead principal investigator for multiple national and global clinical trials. He is often sought after as a guest speaker and lecturer at prestigious national and international gatherings. In pursuit of advancements in vitreoretinal care, Dr. Khanani initiated the Clinical Trials at the Summit (CTS) meeting, aiming to foster dialogue on clinical trial execution, design, and data analysis. Dr. Khanani holds elected membership in esteemed organizations such as the Macula Society and Retina Society, in addition to being the recipient of numerous distinguished awards. In 2019, he was honored with the Nevada Business Magazine Healthcare Heroes Physician of the Year award in recognition of his unwavering commitment to the field of ophthalmology. Dr. Khanani has been bestowed with the Senior Honor Award from the American Society of Retina Specialists (ASRS) and was also awarded the prestigious ASRS Presidents’ Young Investigator Award in 2021. Furthermore, in 2023, he was invited to deliver the esteemed Ernst Bodenheimer Memorial Lecture at the Wilmer Eye Institute at Johns Hopkins University. In February 2024, Dr. Khanani joined Opthea as its Chief Medical Advisor, while retaining his practice, sponsorship, and research activities. Prior to his new role at Opthea, Dr. Khanani served as a principal investigator for Opthea’s ShORe Phase 3 pivotal trial. About Charles C. Wykoff, MD, PhD Charles C. Wykoff, MD, PhD is a board-certified Medical and Surgical Retina Specialist and ophthalmologist with Retina Consultants of Texas (RCTX). Leading a top international research facility for vitreoretinal diseases, Dr. Wykoff serves as Director of Research at RCTX and the Greater Houston Retina Research Foundation (GHRRF), and Chairman of the Research and Clinical Trials Subcommittee, Retina Consultants of America. In addition, he serves as the elected Deputy Chair of Ophthalmology for the Blanton Eye Institute, Houston Methodist Hospital. Dr. Wykoff has been awarded the American Academy of Ophthalmology Secretariat and Achievement Awards as well as the American Society of Retina Specialists Senior Honor and Young Investigator Awards. Dr. Wykoff serves as the Chief Investigator for Opthea’s COAST Phase 3 pivotal trial and is on Opthea’s Clinical Advisory Board. About Veeral S. Sheth, MD, MBA, FASRS, FACS Veeral Sheth, MD, MBA, FACS, is a native Chicagoan that specializes in diseases of the retina and vitreous. He also is a Clinical Assistant Professor at the University of Illinois at Chicago. Dr. Sheth completed his ophthalmology residency at the Illinois Eye and Ear Infirmary where he served as Chief Resident. After residency, Dr. Sheth completed his fellowship at the University of Chicago in Retinal Surgery. He completed his MBA at Northwestern University’s Kellogg School of Management. Dr. Sheth is a Partner at University Retina and Macula Associates. He is Director of Clinical Trials at one of the busiest clinical trial sites in the country. He has been principal investigator for over 60 clinical trials and has research interests in macular degeneration, diabetic retinopathy, vein occlusion, as well as surgical pathology. He is involved in clinical trials developing new drugs, delivery devices, and gene therapy. Dr. Sheth is an active member of the American Society of Retina Specialists, Retina Society, American Academy of Ophthalmology, The Association for Research in Vision and Ophthalmology, and the European Society of Retina Specialists. He is the Chairman Emeritus of the Board of Directors for Meals on Wheels Chicago. Dr. Sheth is fluent in English, Spanish, and Gujarati. Dr. Sheth is a principal investigator for Opthea’s ShORe Phase 3 pivotal trial. About Sozinibercept Sozinibercept (OPT-302) is a soluble form of vascular endothelial growth factor receptor 3 (VEGFR-3) expressed as an immunoglobulin G1 (IgG1) Fc-fusion protein. It binds and neutralizes the activity of VEGF-C and VEGF-D on their endogenous receptors, VEGFR-2 and VEGFR-3. Research indicates that targeted inhibition of VEGF-C and VEGF-D can prevent blood vessel growth and vascular leakage, which contribute to the pathophysiology of retinal diseases including wet AMD. Sozinibercept has received Fast Track Designation from the U.S. FDA for the treatment of wet AMD. Positive results from the Phase 2b study of sozinibercept, administered in combination with standard of care, LUCENTIS® (ranibizumab), for the treatment of wet AMD, published in Ophthalmology, met the pre-specified primary efficacy endpoint of a statistically superior gain in visual acuity at 24 weeks, compared to ranibizumab alone. In addition, secondary outcomes were positive for the combination therapy with sozinibercept, including more participants with gains in vision of 10 or more letters and improved anatomy, with a reduction in swelling and vascular leakage, with a favorable safety profile. About Opthea Opthea (ASX:OPT; NASDAQ:OPT) is a biopharmaceutical company developing novel therapies to address the unmet need in the treatment of highly prevalent and progressive retinal diseases, including wet age-related macular degeneration (wet AMD) and diabetic macular edema (DME). Opthea’s lead product candidate, sozinibercept, is being evaluated in two pivotal Phase 3 clinical trials (COAST, NCT04757636, and ShORe, NCT04757610,) for use in combination with standard-of-care anti-VEGF-A monotherapies to improve overall efficacy and deliver superior vision gains compared to the standard-of-care anti-VEGF-A agents. To learn more, visit our website and follow us on X and LinkedIn. IZERVAY™ is a registered trademark of Astellas Pharma Inc. LUCENTIS® is a registered trademark of Genentech USA, Inc. A member of the Roche Group. Authorized for release to ASX by Fred Guerard, CEO Investor Enquiries PJ Kelleher LifeSci Advisors Email: pkelleher@lifesciadvisors.com Phone: 617-430-7579 Media Silvana Guerci-Lena NorthStream Global Partners Email: silvana@nsgpllc.com Join our email database to receive program updates: Tel: +61 (0) 3 9826 0399 Email: info@opthea.com Source: Opthea Limited