GA and Stargardt Disease: EMA Provides Positive ATMP Opinion for Gene Therapy Products
Ocugen Announces Positive Opinion of EMA’s Committee for Advanced Therapies for ATMP Classification for Novel Modifier Gene Therapy Candidate OCU410 for Geographic Atrophy and OCU410ST for Stargardt disease.
The US-biotech firm Ocugen announced that the European Commission has provided a positive opinion from the European Medicines Agency’s (EMA) Committee for Advanced Therapies (CAT) for OCU410 and OCU410ST Advanced Therapy Medicinal Product (ATMP) classification. OCU410 is a novel, multifunctional modifier gene therapy candidate being developed for the treatment of patients with vision loss due to geographic atrophy (GA)—an advanced stage of dry age-related macular degeneration (dAMD)—and OCU410ST is being developed for Stargardt disease due to ABCA4-related retinopathies.
The EMA’s positive opinion on OCU410 and OCU410ST follows a similar update from early February, when the EMA provided ATMP designation to OCU400, Ocugen's gene therapy indicated for treating retinitis pigmentosa.
OCU410 and OCU410ST utilize an adeno-associated virus (AAV) platform for the retinal delivery of the RORA (ROR Related Orphan Receptor A) gene. The RORA protein plays an important role in lipid metabolism, reducing lipofuscin deposits and oxidative stress, and demonstrates an anti-inflammatory role as well as inhibiting the complement system in both in vitro and in vivo (animal model) studies.
“The novel modifier gene in OCU410 and OCU410ST targets all four pathways linked with dAMD and Stargardt and is delivered through a single subretinal injection as a one-and-done treatment,” said Dr. Huma Qamar, Chief Medical Officer at Ocugen. “We are very pleased with the structural and functional outcomes demonstrated by both of these candidates, along with a stellar safety profile.”
GA affects 2-3 million people in the United States (U.S.) and Europe combined. There are two approved therapies in the U.S. that require frequent dosing (every month or every other month), however neither therapy has been approved in Europe. Stargardt disease affects 100,000 people in the U.S. and Europe combined, and there are no approved treatments available globally.
“Dosing of Phase 2 in the ongoing OCU410 ArMaDa clinical trial is complete, and we are on track to initiate the Phase 3 clinical trial next year to pursue potential Marketing Authorization Application (MAA) and Biologics License Application (BLA) filings in 2028. Last week, the U.S. Food and Drug Administration (FDA) endorsed Ocugen’s plan to move forward with a Phase 2/3 pivotal confirmatory clinical trial for OCU410ST, which can be the basis of BLA and potential MAA submissions in 2027,” said Dr. Shankar Musunuri, Chairman, CEO, and Co-founder of Ocugen.
ATMP classification is granted to medicines that can offer groundbreaking opportunities for the treatment of disease and accelerates the regulatory review timeline of this potential one-time gene therapy for life. Additionally, this classification allows Ocugen to interact with EMA more frequently for scientific advice and protocol assistance.
Preliminary 9-month data of OCU410 in GA patients demonstrated considerably slower lesion growth (44%) from baseline and clinically meaningful 2-line (10-letter) improvement in visual function (LLVA) in treated eyes compared to untreated eyes in the Phase 1 portion of the trial. Furthermore, a single subretinal OCU410 treatment preserves more retinal tissue around GA lesions of treated eyes at 9 months compared to published data on currently available GA therapies.
6-month data from Phase 1 of the OCU410ST GARDian clinical trial demonstrated considerably slower lesion growth (52%) from baseline in treated eyes versus untreated fellow eyes and clinically meaningful 2-line (10-letter) improvement in visual function (BCVA), which is statistically significant (p=0.02) in treated eyes. The Company plans to initiate the Phase 2/3 pivotal confirmatory clinical trial for OCU410ST by mid-2025.
Source: Ocugen