A Phase 2/3 Trial to Assess the Efficacy and Safety of OCU410ST for Stargardt Disease

NCT ID: NCT05956626

Last Updated: 2025-10-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2/PHASE3

Total Enrollment

51 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-08-25

Study Completion Date

2026-09-28

Brief Summary

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Phase 2/3 Pivotal Confirmatory Clinical Trial is a randomized, outcome assessor-masked, multicenter study, that will enroll fifty-one (51) subjects. Subjects will be enrolled in a 2:1 ratio to either the treatment group (n=34 subjects) or to an untreated control group (n=17 subjects).

Phase 1 is complete and closed for enrollment. It was a multicenter, open-label, dose ranging/dose escalation study that enrolled 9 subjects.

Detailed Description

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Name of Investigational Product: OCU410ST Name of Active Ingredient: Adeno-associated viral vector 5 human RORA (AAV5-hRORA)

Title of Study: A PHASE 1 STUDY TO ASSESS THE SAFETY AND EFFICACY OF OCU410ST FOR STARGARDT DISEASE AND PHASE 2/3 PIVOTAL CONFIRMATORY CLINICAL TRIAL TO ASSESS THE SAFETY AND EFFICACY OF OCU410ST FOR STARGARDT DISEASE

Study Center(s): Approximately fifteen study centers in the US.

Background: Stargardt disease is an eye disease that causes vision loss in children and young adults. It is an inherited disease caused by faulty genes that cause buildup of fat deposits in the eye. Currently, there is no approved treatment available for Stargardt disease.

OCU410ST Product Information:

OCU410ST is an Adeno-Associated Virus serotype 5 containing human RORA for the treatment of Stargardt disease. Dysregulation in lipid metabolism, oxidative stress, and anti-inflammatory mechanisms are critical for pathogenesis and progression of Stargardt disease. The role of hRORA in regulating these gene pathways strongly suggests OCU410ST could restore homeostasis in the eye and thereby serve as a therapeutic candidate for Stargardt disease.

Phase 2/3 Pivotal Confirmatory Clinical Trial is a randomized, outcome assessor-masked, multicenter study.

A total of fifty-one (51) subjects will be enrolled in a 2:1 ratio to either the treatment group (n=34 subjects) or to an untreated control group (n=17 subjects).

Treatment group: 34 subjects. Subjects will receive a single subretinal injection of 200 µL OCU410ST in concentration of 1.5×10E11 vg/mL.

Control group: 17 subjects. Subjects who are enrolled in the untreated control group of the study will not receive any treatment. They will be followed according to the same treatment schedule as the treated subjects.

Note: Data will be collected for the untreated eye at Screening, 4-month, 8-month, 12-month, four (4) long-term safety follow-up visits, and early termination visit (if applicable).

Data will be collected for the treated eye at Screening, treatment Day 1, Day 2, Day 15, 4-month, 8-month, 12-month, four (4) long-term safety follow-up visits, and early termination visit (if applicable).

Enrollment in the Phase 1 study is complete. Phase 1 enrolled a total of nine subjects in low, medium and high dose cohorts.

Low Dose Cohort (3.75×10E10 vg/mL):

Three (3) Subjects received a single subretinal injection of 200 µL OCU410ST in low dose concentration (3.75×10E10 vg/mL).

Medium Dose Cohort (7.5×10E10 vg/mL):

Three (3) Subjects received a single subretinal injection of 200 µL OCU410ST in medium dose concentration (7.5×10E10 vg/mL).

High Dose Cohort (2.25×10E11 vg/mL):

Three (3) Subjects received a single subretinal injection of 200 µL OCU410ST in high dose concentration (2.25×10E11 vg/mL).

Conditions

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Stargardt Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

The study will be conducted in two phases.

Phase 2/3 Pivotal Confirmatory Clinical Trial is a randomized, outcome assessor-masked, multicenter study.

A total of fifty-one (51) subjects will be enrolled in a 2:1 ratio to either the treatment group (n=34 subjects) or to an untreated control group (n=17 subjects).

Treatment group: 34 subjects. Subjects will receive a single subretinal injection of 200 µL OCU410ST in concentration of 1.5×10E11 vg/mL.

Control group: 17 subjects. Subjects who are enrolled in the untreated control group of the study will not receive any treatment. They will be followed according to the same treatment schedule as the treated subjects.

Phase 1 was a multicenter, open-label, dose-ranging/dose escalation study. A 3+3 study design will be used for the sequential dose-escalation cohorts in which subjects will receive a single subretinal injection of OCU410ST. Enrollment is complete for Phase 1.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
The masked biostatistician and other study team members identified by the masking plan

Study Groups

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Phase 2/3 Randomized Treatment Arm

Subjects will receive a single subretinal injection of 200uL OCU410ST in concentration of 1.5 x 10E11vg/mL

Group Type EXPERIMENTAL

OCU410ST

Intervention Type DRUG

Subretinal Administration of OCU410ST

Phase 2/3 Randomized Control Arm

Subjects will not receive any active study intervention

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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OCU410ST

Subretinal Administration of OCU410ST

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Males or females aged ≥5 years at the time of consent.
2. Subjects who have confirmed clinical and CLIA certified or equivalent genetic diagnosis of Stargardt disease (including ABCA4 related retinopathies).
3. Adult subjects who have BCVA of 75 letters or less in the study eye (20/32 Snellen equivalent) and Pediatric subjects who have a BCVA of 35 letters or better in the study eye (20/200 Snellen equivalent).
4. The study eye should have at least one well-demarcated area of atrophy with a minimum diameter of 300 microns, and total lesion size must add to less than or equal to ≤ 18 mm2 (approximately 7-disc areas).
5. Have detectable outer nuclear layer (ONL) in the macular region

Exclusion Criteria

1. Participation in ongoing antiretroviral therapy treatment.
2. Participation in any experimental treatment or research study within 60 days before screening (any previous eye treatments involving gene therapy, stem cells, implanted retinal chips, injections into the eye, or participation in an Alkeus ALK-001 study within the past 6 months)
3. Macular atrophy secondary to any disease other than Stargardt Disease (STGD).
4. Presence of genetic mutations that mimic Stargardt Disease like ELOVL4, or PROM1.
5. Contraindication to subretinal injection or use of anesthesia (local and/or general).

Phase 1 was a multicenter, open-label, dose-ranging/dose escalation study. Enrollment is complete for Phase 1
Minimum Eligible Age

5 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ocugen

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Murthy Chavali, MD, Ph.D.

Role: STUDY_DIRECTOR

Ocugen., Inc.

Locations

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Associated Retina Consultants

Phoenix, Arizona, United States

Site Status RECRUITING

Retinal Consultants Medical Group

Sacramento, California, United States

Site Status NOT_YET_RECRUITING

Vitreo Retinal Associates, P.A.

Gainesville, Florida, United States

Site Status RECRUITING

Bascom Palmer Eye Institute

Miami, Florida, United States

Site Status RECRUITING

Advanced Research, LLC

Pompano Beach, Florida, United States

Site Status RECRUITING

Retina Partners Midwest, P.C.

Carmel, Indiana, United States

Site Status RECRUITING

Boston Children's Hospital

Boston, Massachusetts, United States

Site Status RECRUITING

Mississippi Retina Associates

Jackson, Mississippi, United States

Site Status RECRUITING

The Retina Institute

St Louis, Missouri, United States

Site Status RECRUITING

Duke Eye Center

Durham, North Carolina, United States

Site Status RECRUITING

Erie Retina Research, LLC

Erie, Pennsylvania, United States

Site Status RECRUITING

Retina Consultants of Texas

Bellaire, Texas, United States

Site Status RECRUITING

Retina Foundation of the Southwest

Dallas, Texas, United States

Site Status RECRUITING

Valley Retina Institute

McAllen, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Umair Qazi, MD, MPH

Role: CONTACT

+1 (202)-817-0787

Mahvish Tafseer, MD, MPH

Role: CONTACT

484-224-3409

Facility Contacts

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Erin Fox

Role: primary

480-999-5458

Mallory Mintert

Role: backup

480-999-5458

Kenneth Quick

Role: primary

916-273-3296

Josh Greenwood

Role: backup

916-974-9279

Brianna Nguyen

Role: primary

Adriana Padilla, FMD, CCRP

Role: primary

305-482-4292

Santosh Tarode

Role: backup

305-243-0314

Danahe Navarrete

Role: primary

954-302-3047 ext. 103

Samarth Shah

Role: backup

Sheeraz Nagvi

Role: primary

317-805-4564

Erdan Sun

Role: primary

Anne Britt, MHA, CCRC

Role: primary

601-981-4091 ext. 646

Mallie Taylor

Role: backup

803-767-0705

Allan Braverman

Role: primary

314-367-1181 ext. 2614

Jordyn Watson

Role: backup

314-367-118 ext. 2033

Lyndsay Williamson

Role: primary

919-681-9459

Bethany Scott

Role: primary

814-737-0203

Joseph Sala

Role: backup

Rebbecca Tiang

Role: primary

800-833-5921

Katherine Juroch, CCRC

Role: primary

214-363-3911 ext. 128

Alfred Halder

Role: primary

956-631-8875 ext. 1800

Other Identifiers

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OCU410ST-101

Identifier Type: OTHER

Identifier Source: secondary_id

OCU410ST-101/301

Identifier Type: -

Identifier Source: org_study_id

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