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Study of BEST1 Vitelliform Macular Dystrophy

Natural History Study in Retinitis Pigmentosa Caused by Mutations in the BEST1 Gene

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05809635
Enrollment
52
Registered
2023-04-12
Start date
2021-03-30
Completion date
2026-05-31
Last updated
2025-07-30

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

Conditions

Best Vitelliform Macular Dystrophy, Retinitis Pigmentosa

Brief summary

The purpose of this study is to establish the natural history of of participants with BESTROPHIN 1 Vitelliform Macular Dystrophy. The blinding disorder Best Vitelliform Macular Dystrophy (VMD) is caused by any one of more than 250 different mutations in the BEST1 gene. As new treatments are developed, a clear understanding of the natural history of disease progression of BEST1 VMD is necessary. The goals of this natural history study are to: 1. Report the natural history of retinal degeneration in participants with a clinical diagnosis of VMD with molecular confirmation of a pathogenic BEST1 mutation(s). 2. Identify sensitive structural and functional outcome measures to use for future multicenter clinical trials for the treatment of BESTROPHIN 1 VMD. 3. Compare progression of the identified structural and functional measures between the two eyes to judge the suitability of the second untreated eye as a control for a future clinical trial involving unilateral treatment 4. Identify well-defined patient populations for future clinical trials of investigative treatments for BEST1 VMD.

Interventions

Longitudinal assessment of participants with BEST1 Vitelliform Macular Dystrophy

Sponsors

Universität Tübingen
CollaboratorOTHER
Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
CollaboratorOTHER
National Eye Institute (NEI)
CollaboratorNIH
Columbia University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Ability to provide informed consent * Diagnosis of BEST1-associated VMD by study physician, who are trained retinal specialists in the university clinic Must be able to commit to 4 follow-up study visits (3 years)

Exclusion criteria

* Systemic condition that prevents the participant from undergoing the exams

Design outcomes

Primary

MeasureTime frameDescription
Quantitative Fundus Autofluorescence (qAF)Up to 3 years
Near-infrared fundus autofluorescence (NIR-AF)Up to 3 years
Medmont Dark Adapted Chromatic (DAC) Automated PerimeterUp to 3 years
Full-field electroretinogram (ERG)Up to 3 yearsERG conducted under International Society for Clinical Electrophysiology of Vision (ISCEV) Protocol.
Electroocoulogram (EOG)Up to 3 yearsEOG conducted under International Society for Clinical Electrophysiology of Vision (ISCEV) Protocol
Optical Coherence Tomography (OCT)Up to 3 years
Fundus Autofluorescence (FAF)Up to 3 years

Secondary

MeasureTime frame
Full-field Stimulus TestingUp to 3 years
Best-corrected Visual Acuity (BCVA)Up to 3 years
Color Fundus PhotosUp to 3 years
Macular Integrity Assessment (MAIA) MicroperimetryUp to 3 years
Goldman Kinetic Visual FieldUp to 3 years
Light-adapted Static PerimetryUp to 3 years
Dark-adapted Chromatic PerimetryUp to 3 years

Countries

France, Germany, United States

Contacts

Primary ContactStephen H Tsang, MD, PhD
sht2@cumc.columbia.edu212-342-1186

Outcome results

None listed

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