NCT03295071

Brief Summary

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).

Trial Health

93
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
44

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2018

Typical duration for all trials

Geographic Reach
5 countries

11 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 22, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 27, 2017

Completed
3 months until next milestone

Study Start

First participant enrolled

January 3, 2018

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2020

Completed
Last Updated

March 2, 2026

Status Verified

February 1, 2026

Enrollment Period

2.5 years

First QC Date

September 22, 2017

Last Update Submit

February 27, 2026

Conditions

Keywords

Heredity Optic AtrophyLeber Hereditary Optic AtrophyLeber Hereditary Optic NeuropathyEye DiseasesHereditary Eye DiseasesInherited retinal dystrophies or degenerationInborn Genetic DiseaseGene TherapyIntravitreal InjectionsMitochondrial DiseaseAAV2 VectorsNervous System DiseasesNeurodegenerative DiseaseHeredodegenerative Disorders of the Nervous System

Outcome Measures

Primary Outcomes (5)

  • Visual Function

    Visual function will include visual examination data from medical records.

    All assessments available before enrollment

  • The National Eye Institute Visual Function Questionnaire (VFQ)-25

    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)

    The SF-36 surveys health status and quality of life

    Enrollment

  • Child Health Questionnaire (CHQ)

    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

    The EuroQol-5 Dimension-5 Level (EQ-5D-5L) is a generic HRQoL instrument that is widely used as a PRO measure.

    Enrollment

Secondary Outcomes (1)

  • Economic burden of disease

    Enrollment

Study Arms (1)

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)

Interventions

Patient-reported outcomes (PROs)

Single-group study

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability 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.

You may qualify if:

  • 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;

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (11)

Doheny Eye Center UCLA Pasadena

Pasadena, California, 91105, United States

Location

Emory University Hospital

Atlanta, Georgia, 30322, United States

Location

Massachusetts Eye and Ear Infirmary

Boston, Massachusetts, 02114, United States

Location

Wills Eye Institute

Philadelphia, Pennsylvania, 19107, United States

Location

Alkek Eye Center

Houston, Texas, 77030, United States

Location

CHU d'Angers

Angers, 49100, France

Location

CHNO Les Quinze Vingts

Paris, 75012, France

Location

Ospedale Bellaria

Bologna, 40139, Italy

Location

Ospedale San Raffaele

Milan, 20132, Italy

Location

Institut Catala de Retina

Barcelona, 08022, Spain

Location

Moorfields Eye Hospital

London, Greater London, EC1V 2PD, United Kingdom

Location

Related Publications (2)

  • Carelli V, Newman NJ, Yu-Wai-Man P, Biousse V, Moster ML, Subramanian PS, Vignal-Clermont C, Wang AG, Donahue SP, Leroy BP, Sergott RC, Klopstock T, Sadun AA, Rebolleda Fernandez G, Chwalisz BK, Banik R, Girmens JF, La Morgia C, DeBusk AA, Jurkute N, Priglinger C, Karanjia R, Josse C, Salzmann J, Montestruc F, Roux M, Taiel M, Sahel JA; the LHON Study Group. Indirect Comparison of Lenadogene Nolparvovec Gene Therapy Versus Natural History in Patients with Leber Hereditary Optic Neuropathy Carrying the m.11778G>A MT-ND4 Mutation. Ophthalmol Ther. 2023 Feb;12(1):401-429. doi: 10.1007/s40123-022-00611-x. Epub 2022 Nov 30.

  • Newman NJ, Yu-Wai-Man P, Carelli V, Biousse V, Moster ML, Vignal-Clermont C, Sergott RC, Klopstock T, Sadun AA, Girmens JF, La Morgia C, DeBusk AA, Jurkute N, Priglinger C, Karanjia R, Josse C, Salzmann J, Montestruc F, Roux M, Taiel M, Sahel JA. Intravitreal Gene Therapy vs. Natural History in Patients With Leber Hereditary Optic Neuropathy Carrying the m.11778G>A ND4 Mutation: Systematic Review and Indirect Comparison. Front Neurol. 2021 May 24;12:662838. doi: 10.3389/fneur.2021.662838. eCollection 2021.

Related Links

MeSH Terms

Conditions

Optic Atrophy, Hereditary, LeberEye DiseasesEye Diseases, HereditaryGenetic Diseases, InbornMitochondrial DiseasesNervous System DiseasesNeurodegenerative Diseases

Interventions

Patient Reported Outcome Measures

Condition Hierarchy (Ancestors)

Optic Atrophies, HereditaryOptic AtrophyOptic Nerve DiseasesCranial Nerve DiseasesHeredodegenerative Disorders, Nervous SystemCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Health Care SurveysSurveys and QuestionnairesData CollectionEpidemiologic MethodsInvestigative TechniquesHealth Services ResearchHealth PlanningHealth Care Economics and OrganizationsPatient Outcome AssessmentOutcome Assessment, Health CareOutcome and Process Assessment, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and EvaluationHealth Care Evaluation MechanismsPublic HealthEnvironment and Public Health

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Target Duration
3 Years
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 22, 2017

First Posted

September 27, 2017

Study Start

January 3, 2018

Primary Completion

July 1, 2020

Study Completion

July 1, 2020

Last Updated

March 2, 2026

Record last verified: 2026-02

Locations