Completed

Choroideremia Health Outcomes

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What is being collected

Data Collection

Collected from today forward - Prospective
Who is being recruted

Eye Diseases+5

+ Congenital, Hereditary, and Neonatal Diseases and Abnormalities

+ Uveal Diseases

See all eligibility criteria
How is the trial designed

Cohort

Tracking disease incidence in order to identify risk factors and understand disease progression over time.
Observational
Study Start: December 2020
See protocol details

Summary

Principal SponsorBiogen
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: December 15, 2020

Actual date on which the first participant was enrolled.

The primary objectives of this study are to describe disease progression and severity by age in participants with CHM, to assess health-related quality-of-life, resource utilization and work productivity, and to assess quality-of-life, work productivity, and impact on daily activities in caregivers of participants with CHM at different stages of disease progression.

Official TitleChoroideremia Health Outcomes
NCT04750785
Principal SponsorBiogen
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

46 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Cohort

These studies follow a group of individuals with common characteristics (such as a condition or birth year) over a specific period to study health outcomes or exposures.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Male

Biological sex of participants that are eligible to enroll.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Eye DiseasesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesUveal DiseasesEye Diseases, HereditaryChoroideremiaChoroid DiseasesGenetic Diseases, InbornGenetic Diseases, X-Linked

Criteria

Key Inclusion Criteria: Physician Participants 1. At least 60% of time spent in direct participant care. 2. Board-certified or eligible with a Specialty in Ophthalmology, such as Retinal Specialist, IRD Specialist, Retinal Surgeon. Patient Participants 1. CHM diagnosis confirmed via genetic testing. 2. Include any minimal disease severity requirement. 3. Participant has at least one record of visual acuity measurement in the past 24 months, OR has be assigned by the treating clinician as having severe VA impairment of blind/legally blind by using one of the following methods: finger counting, hand movement, light perception / no light perception. Key Exclusion Criteria: Physician Participants a. Participating physicians must not be affiliated with an approved management organization. Patient Participants a. Participants who received gene therapy or any other investigational treatment and participants who do not agree to informed consent. NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Study Objectives

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 8 locations

Suspended

Research Site

Los Angeles, United StatesOpen Research Site in Google Maps
Suspended

Research Site

San Francisco, United States
Suspended

Research Site

Coral Gables, United States
Suspended

Research Site

Gainesville, United States
Completed8 Study Centers