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ClinicalTrials.gov public records Last synced May 22, 2026, 12:11 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Chronic Progressive External Ophthalmoplegia Clear all
Recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Eye Diseases Hereditary, Retinal Disease, Achromatopsia, Bardet-Biedl Syndrome, Bassen-Kornzweig Syndrome, Batten Disease, Best Disease, Choroidal Dystrophy, Choroideremia, Cone Dystrophy, Cone-Rod Dystrophy, Congenital Stationary Night Blindness, Enhanced S-Cone Syndrome, Fundus Albipunctatus, Goldmann-Favre Syndrome, Gyrate Atrophy, Juvenile Macular Degeneration, Kearns-Sayre Syndrome, Leber Congenital Amaurosis, Refsum Syndrome, Retinitis Pigmentosa, Retinitis Punctata Albescens, Retinoschisis, Rod-Cone Dystrophy, Rod Dystrophy, Rod Monochromacy, Stargardt Disease, Usher Syndrome
Interventions
Not listed
Lead sponsor
Foundation Fighting Blindness
Other
Eligibility
Not listed
Enrollment
20,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2037
U.S. locations
1
States / cities
Columbia, Maryland
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced May 22, 2026, 12:11 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Inherited Mitochondrial Disease, Including Leigh Syndrome
Interventions
Cysteamine Bitartrate
Drug
Lead sponsor
Amgen
Industry
Eligibility
6 Years to 17 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
5
States / cities
San Diego, California • Stanford, California • Akron, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced May 22, 2026, 12:11 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Mitochondrial Disorders, Mitochondrial Genetic Disorders, Mitochondrial Diseases, Disorder of Mitochondrial Respiratory Chain Complexes, Deletion and Duplication of Mitochondrial DNA
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2026
U.S. locations
16
States / cities
San Diego, California • Stanford, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced May 22, 2026, 12:11 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
PolG, Primary Mitochondrial Myopathy
Interventions
Not listed
Lead sponsor
The Emmes Company, LLC
Industry
Eligibility
16 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Kingston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 13, 2024 · Synced May 22, 2026, 12:11 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Mitochondrial Myopathies, Mitochondrial DNA Mutation, Mitochondrial Diseases, Chronic Progressive External Ophthalmoplegia With Myopathy, Kearns-Sayre Syndrome
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
15 Years to 80 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 11, 2024 · Synced May 22, 2026, 12:11 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Mitochondrial Myopathies, Mitochondrial Pathology, Mitochondrial DNA Mutation, Mitochondrial Diseases, Mitochondrial DNA Deletion, Mitochondrial DNA Depletion, Mitochondrial Metabolism Defect, Mitochondrial Complex I Deficiency
Interventions
Elamipretide, Placebo
Drug
Lead sponsor
Stealth BioTherapeutics Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
9
States / cities
San Diego, California • Atlanta, Georgia • Boston, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced May 22, 2026, 12:11 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Blepharoptosis, Ptosis, Eyelid, Myasthenia Gravis, Stroke, Traumatic Brain Injury, Chronic Progressive External Ophthalmoplegia
Interventions
Magnetic Levator Prosthesis (MLP), Kinesiotape Frontalis Sling (KTFS)
Device
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
5 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 21, 2025 · Synced May 22, 2026, 12:11 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Mitochondrial Diseases
Interventions
Cysteamine Bitartrate
Drug
Lead sponsor
Amgen
Industry
Eligibility
6 Years to 17 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
5
States / cities
San Diego, California • Stanford, California • Akron, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced May 22, 2026, 12:11 AM EDT