{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Mitochondrial+Encephalomyopathies", "query": { "condition": "Mitochondrial Encephalomyopathies" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 25, "total_pages": 3, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Mitochondrial+Encephalomyopathies&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-05-22T07:48:42.913Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT06402123", "title": "A Phase 2b Study of Zagociguat in Patients With MELAS", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Mitochondrial Encephalopathy, Lactic Acidosis and Stroke-Like Episodes (MELAS Syndrome)" ], "interventions": [ { "name": "zagociguat 15mg", "type": "DRUG" }, { "name": "zagociguat 30mg", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Tisento Therapeutics", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 43, "start_date": "2024-09-10", "completion_date": "2026-06-20", "has_results": false, "last_update_posted_date": "2026-03-25", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 10, "location_summary": "La Jolla, California • Aurora, Colorado • Atlanta, Georgia + 5 more", "locations": [ { "city": "La Jolla", "state": "California" }, { "city": "Aurora", "state": "Colorado" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT06402123" }, { "nct_id": "NCT06961344", "title": "An Open-label Extension Safety Study of MELAS Patients Who Completed TIS6463-203 (PRIZM)", "overall_status": "ENROLLING_BY_INVITATION", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Mitochondrial Encephalopathy, Lactic Acidosis and Stroke-Like Episodes (MELAS Syndrome)" ], "interventions": [ { "name": "zagociguat 15mg", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Tisento Therapeutics", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 44, "start_date": "2025-08-18", "completion_date": "2028-07", "has_results": false, "last_update_posted_date": "2026-05-04", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 9, "location_summary": "La Jolla, California • Aurora, Colorado • Atlanta, Georgia + 5 more", "locations": [ { "city": "La Jolla", "state": "California" }, { "city": "Aurora", "state": "Colorado" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT06961344" }, { "nct_id": "NCT00004353", "title": "Study of the Metabolism of Pyruvate and Related Problems in Patients With Lactic Acidemia", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Mitochondrial Myopathy", "MELAS Syndrome", "Lactic Acidosis" ], "interventions": [], "intervention_types": [], "sponsor": "National Center for Research Resources (NCRR)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 35, "start_date": "1978-12", "completion_date": null, "has_results": false, "last_update_posted_date": "2008-07-10", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 1, "location_summary": "San Diego, California", "locations": [ { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00004353" }, { "nct_id": "NCT06051448", "title": "Promoting Resilience in Stress Management (PRISM) and Clinical-focused Narrative (CFN) Pilot in Adults With Primary Mitochondrial Disease (PMD).", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Mitochondrial Diseases", "Mitochondrial Myopathies", "Mitochondrial Encephalomyopathies", "MELAS", "MERRF" ], "interventions": [ { "name": "Promoting Resilience in Stress Management (PRISM)", "type": "BEHAVIORAL" }, { "name": "Clinical-focused narrative (CFN)", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Children's Hospital of Philadelphia", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 16, "start_date": "2023-09-22", "completion_date": "2024-02-28", "has_results": false, "last_update_posted_date": "2024-11-29", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT06051448" }, { "nct_id": "NCT01532791", "title": "Natural History Study - Mitochondrial Disease", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "MELAS or m.3243 A>G Mitochondrial DNA Mutation Carrier" ], "interventions": [], "intervention_types": [], "sponsor": "Columbia University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "4 Years", "maximum_age": null, "sex": "ALL", "summary": "4 Years and older" }, "enrollment_count": 300, "start_date": "2004-07", "completion_date": "2026-07", "has_results": false, "last_update_posted_date": "2026-01-23", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT01532791" }, { "nct_id": "NCT02023866", "title": "Open-Label, Dose-Escalating Study Assessing Safety, Tolerability, Efficacy, of RP103 in Mitochondrial Disease", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Inherited Mitochondrial Disease, Including Leigh Syndrome" ], "interventions": [ { "name": "Cysteamine Bitartrate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "6 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "6 Years to 17 Years" }, "enrollment_count": 36, "start_date": "2014-05", "completion_date": "2016-10", "has_results": true, "last_update_posted_date": "2024-12-27", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 5, "location_summary": "San Diego, California • Stanford, California • Akron, Ohio + 2 more", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "Stanford", "state": "California" }, { "city": "Akron", "state": "Ohio" }, { "city": "Houston", "state": "Texas" }, { "city": "Salt Lake City", "state": "Utah" } ], "official_url": "https://clinicaltrials.gov/study/NCT02023866" }, { "nct_id": "NCT00887562", "title": "Study of Idebenone in the Treatment of Mitochondrial Encephalopathy Lactic Acidosis & Stroke-like Episodes", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "MELAS Syndrome" ], "interventions": [ { "name": "Idebenone", "type": "DRUG" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Michio Hirano", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "8 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "8 Years to 65 Years" }, "enrollment_count": 27, "start_date": "2009-05", "completion_date": "2012-07", "has_results": true, "last_update_posted_date": "2016-10-26", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00887562" }, { "nct_id": "NCT01803906", "title": "Tissue Sample Study for Mitochondrial Disorders", "overall_status": "ENROLLING_BY_INVITATION", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Mitochondrial Disorders", "Mitochondrial Disease", "Melas", "Kearns Sayer", "NARP", "MNGIE", "LHON", "Mitochondrial Depletion Syndrome", "Leigh's Disease" ], "interventions": [], "intervention_types": [], "sponsor": "Columbia University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 6900, "start_date": "2012-02", "completion_date": "2026-12", "has_results": false, "last_update_posted_date": "2026-01-07", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT01803906" }, { "nct_id": "NCT03952234", "title": "L-Citrulline Dose Finding Safety Study in MELAS", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "MELAS Syndrome" ], "interventions": [ { "name": "L-Citrulline", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Baylor College of Medicine", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 10, "start_date": "2021-04-22", "completion_date": "2024-06-01", "has_results": false, "last_update_posted_date": "2024-06-26", "last_synced_at": "2026-05-22T07:48:42.913Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03952234" }, { "nct_id": "NCT06451757", "title": "KHENERFIN Study: A Trial to Evaluate the Efficacy and Safety of Sonlicromanol in Primary Mitochondrial Diseases", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Mitochondrial Diseases", "Maternally Inherited Diabetes and Deafness (MIDD)", "Mitochondrial Encephalomyopathy, Lactic Acidosis and Stroke-like Episodes (MELAS)", "Mitochondrial DNA tRNALeu(UUR) m.3243A