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Open-Label Extension: Tolerability and Effects of ALK-001 on Stargardt Disease (TEASE)

A Phase 2 Multicenter, Double-Masked, Randomized, Placebo-Controlled Study to Investigate the Long Term Safety, Tolerability, Pharmacokinetics and Effects of ALK-001 on the Progression of Stargardt Disease

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04239625
Enrollment
200
Registered
2020-01-27
Start date
2019-12-20
Completion date
2026-12-31
Last updated
2025-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autosomal Recessive Stargardt Disease 1 (ABCA4-related), Stargardt Disease, Stargardt Macular Degeneration, Stargardt Macular Dystrophy

Brief summary

The purpose of this open-label, multicenter study is to determine the long-term safety, pharmacokinetics and effects of ALK-001 (C20-D3-retinyl acetate) on the progression of Stargardt disease. This study is an extension of NCT02402660 and enrolls participants who are at least 8 years old. Enrollment is by invitation only. Funding Source - FDA OOPD

Interventions

Oral administration of a pill for up to 24 months

Sponsors

Alkeus Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
8 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Simplified Inclusion Criteria: * Clinical diagnosis of Stargardt disease (STGD1) * Has at least two ABCA4 disease-causing mutations, unless authorized by sponsor * Has a best-corrected visual acuity (BCVA) greater than approximately 20/160 in at least one eye * Healthy as judged by investigator * Able and willing to comply with study requirements, restrictions and instructions and is likely to complete the 24-month study * Has been invited to participate in this extension, and has signed and dated the informed consent forms (or assent where appropriate) to participate * Female of childbearing potential has signed the attestation on contraception requirements Simplified

Exclusion criteria

* Is lactating or pregnant * Has a medical condition likely to prevent compliance with the protocol and/or interfere with absorption of ALK-001 or performance of study procedures * Has abnormal laboratory result(s) at screening * Has an ocular disorder that may confound ocular assessments * Has a history of ocular intervention within 90 days of screening

Design outcomes

Primary

MeasureTime frame
Safety and tolerability of ALK-001 assessed by incidence and/or clinically-significant changes of a combination of ocular and non-ocular adverse eventsFrom baseline to 24 months
Pharmacokinetic profile of ALK-001 derived from the concentrations of ALK-001 and metabolites in plasmaUp to 24 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026