REALITY LHON Registry (REALITY)

February 27, 2026 updated by: GenSight Biologics

Observational Registry Study of Leber Hereditary Optic Neuropathy (LHON) Affected Patients

This study is a multi-country retrospective and cross-sectional observational study of affected LHON subjects, based on retrospective subjects' medical chart abstractions and cross-sectional administration of patient-reported outcomes (PROs).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The purpose of this study is to understand the evolution of visual functional and structural changes and other associated symptoms in patients with LHON. The relation between genetic, lifestyle and/or environmental factors and the LHON disease will be described, and a better understanding of the natural history of LHON disease and the healthcare associated to with the disease will be sought.

In addition, we would also like to understand the economic burden for patients and their families with LHON resulting from direct and indirect costs they may have because of their disease.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
44

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Angers, France, 49100
        • CHU d'Angers
      • Paris, France, 75012
        • CHNO Les Quinze Vingts
  • Italy
      • Bologna, Italy, 40139
        • Ospedale Bellaria
      • Milan, Italy, 20132
        • Ospedale San Raffaele
  • Spain
      • Barcelona, Spain, 08022
        • Institut Català de Retina
  • United Kingdom
    • Greater London
      • London, Greater London, United Kingdom, EC1V 2PD
        • Moorfields Eye Hospital
  • United States
    • California
      • Pasadena, California, United States, 91105
        • Doheny Eye Center UCLA Pasadena
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Emory University Hospital
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts Eye and Ear Infirmary
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • Wills Eye Institute
    • Texas
      • Houston, Texas, United States, 77030
        • Alkek Eye Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

The study will recruit at least 50 affected LHON subjects (both adult and pediatric) from global clinical sites at the following countries, but not limited to: Spain, Italy, France, United Kingdom, and the United States. Efforts will be done to maintain the population of at least 50 affected LHON subjects.

Recruitment efforts of recruiting approximately 75% of eligible subjects with 11778/ND4 mutation and 30% of eligible subjects under the age of 18 at the time of index date, wherever possible, will be done at the study level.

Description

Inclusion Criteria:

  • Subjects who have a confirmed and genotyped diagnosis of LHON;
  • Subjects with visual function outcomes data including at least 2 visual function assessments between 1 year and 3 years (+/- 4 weeks) after vision loss;
  • Subjects who are willing and able to provide written informed consent if required as per local regulations;
  • For LHON subjects under the age of 18 years, permission from a legal guardian to participate in the study;

Exclusion Criteria:

  • Subjects who received any investigational drug, or participated in any LHON-related interventional clinical trial during the observational period;
  • Subjects without medical charts data available.

Study Plan

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

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Cross-Sectional

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Single-group study
This study is a multi-country retrospective and cross-sectional observational study of affected LHON subjects, based on retrospective subjects' medical chart abstractions and cross-sectional administration of patient-reported outcomes (PROs).
Other: Patient-reported outcomes (PROs)
Patient-reported outcomes (PROs)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Visual Function
Time Frame: All assessments available before enrollment
Visual function will include visual examination data from medical records.
All assessments available before enrollment
The National Eye Institute Visual Function Questionnaire (VFQ)-25
Time Frame: Enrollment
The National Eye Institute Visual Function Questionnaire (NEI-VFQ or VFQ)-25 is a valid and reliable 25-item version of the 51-item VFQ.
Enrollment
The 36-Item Short Form Health Survey (SF-36)
Time Frame: Enrollment
The SF-36 surveys health status and quality of life
Enrollment
Child Health Questionnaire (CHQ)
Time Frame: Enrollment
The CHQ uses the same structure and methodological approach as the SF-36 and is designed and normed for children from 5-to-18 years of age.
Enrollment
EuroQol-5 Dimension (EQ-5D)-5L
Time Frame: Enrollment
The EuroQol-5 Dimension-5 Level (EQ-5D-5L) is a generic HRQoL instrument that is widely used as a PRO measure.
Enrollment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Economic burden of disease
Time Frame: Enrollment
Data will be gathered by questionnaire at cross-sectional survey. Direct costs and indirect costs resulting from LHON will be estimated by all enrolled subjects. Direct costs will include the medical and non-medical direct costs due to LHON
Enrollment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
GenSight Biologics

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 3, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 22, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 26, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 27, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 27, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GS010_Registry_001

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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