ORPHA:352447
Progressive external ophthalmoplegia-myopathy-emaciation syndrome
Also known as: Mitochondrial DNA maintenance syndrome due to MGME1 deficiency · PEO-myopathy-emaciation syndrome · mtDNA maintenance syndrome due to MGME1 deficiency
Publications
424
80.2th percentile
Trials
0
Interventional, condition-specific
Researchers
160
Distinct authors in sample
Gene link
MGME1
Strong
Readiness
3/6
Stages with a signal
Clinical definition (Orphanet)
external ophthalmoplegia--emaciation syndrome is a rare oxidative phosphorylation disorder due to nuclear DNA anomalies characterized by external ophthalmoplegia without diplopia, cerebellar atrophy, proximal skeletal muscle weakness with generalized muscle wasting, profound emaciation, respiratory failure, spinal deformity and facial muscle weakness (manifesting with ptosis, dysphonia, dysphagia and nasal speech). , gastrointestinal symptoms (e.g. nausea, abdominal fullness, and loss of appetite), dilated and renal colic have also been reported.
How rare: <1 / 1 000 000 — fewer than one in a million. In a city the size of Kolkata, that might mean on the order of fifteen people.
Cross-references
Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.
- MONDO:0014039
- OMIM:615084
- UMLS:C3554462
Additional Mondo synonyms (5)
MGME1 mitochondrial DNA depletion syndrome · mitochondrial DNA depletion syndrome 11 · mitochondrial DNA depletion syndrome caused by mutation in MGME1 · mitochondrial DNA depletion syndrome type 11 · mitochondrial DNA maintenance syndrome due to MGME1 deficiency
Research stages
Trial readiness signals
Where this condition sits on an open-data research pipeline — not how close a treatment is, and not medical advice. Empty stages often mean “not in these databases under this Mondo ID,” not “impossible.”
3/6 stages with a signal
No matched interventional trial; the gene is known and literature exists — preclinical or natural-history work may still be the practical next step.
- Gene identifiedPresent
Strong — MGME1
- LiteraturePresent
424 matched papers (377 in last 10 years) Source
- Phenotype characterisedPresent
61 HPO annotations (e.g. Elevated circulating creatine kinase activity; Facial palsy; Cerebellar atrophy) Source
- Animal modelNot found
No Alliance genotype “model of” associations via Monarch for these Mondo IDs
- Orphan designationNot found
No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source
- Interventional trialNot found
No matched interventional trial under our ClinicalTrials.gov rules
Biology
Genes and phenotypes
Gene–disease validity from GenCC, plus phenotypes and animal models joined from Monarch Initiative via Mondo ID — not a clinical diagnosis aid.
Do we know what causes it?
Yes — we know a specific gene responsible (MGME1).
GenCC classification: Strong.
Phenotypes (Monarch / HPO)
61
Associated phenotypes · MONDO:0014039
- Elevated circulating creatine kinase activity
- Facial palsy
- Cerebellar atrophy
- Arrhythmia
- Hypergonadotropic hypogonadism
Showing 5 of 61 — open Monarch for the full list.
Animal models (Monarch / Alliance)
None returned for this Mondo ID. Empty here is not proof that no model organism work exists under another name or gene.
Monarch fetch 2026-07-29
Therapies
Designations, candidates, and chemicals
FDA OOPD and EMA orphan designations, Open Targets clinical candidates, and CTD chemical associations via MyDisease.info. These never change the interventional-trial headline.
Orphan designation (FDA · EMA)
No designation matched this disease via UMLS or preferred name on the FDA OOPD mirror or EMA orphan register. Absence here is not proof that none exists under another wording.
Open Targets candidates
No drugs or clinical candidates returned for this Mondo ID on Open Targets.
CTD chemicals (MyDisease.info)
No CTD chemical associations returned for this Mondo ID.
Literature
Is anyone studying this?
424
424 papers have ever been published on this condition (under this name). For scale, breast cancer has over 700,000. Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.
424 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 59 (publications denominator n=3967).
377 in the last 10 years · medium confidence · 80.2th percentile (publications denominator)
Phrase hits: 22 · MeSH hits: 0
Who's working on it?
160
Distinct author names in 22 sampled papers — named people below.
Who's working on it?
No interventional trial matched this name; these authors publish on it in the sampled literature — a practical starting point for contact.
- 01Griger Z Jr2 papers · 2025
Division of Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
Papers in Europe PMC - 02Li H2 papers · 2025
BGI-Anhui Clinical Laboratory, BGI-Shenzhen, 236000, Fuyang, China.
Papers in Europe PMC - 03Acikgoz NB1 paper · 2026
Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey.
Papers in Europe PMC - 04Adamovsky O1 paper · 2021
Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA.
Papers in Europe PMC - 05Al-Ali MT1 paper · 2021
Centre for Arab Genomic Studies, Dubai 22252, United Arab Emirates.
Papers in Europe PMC - 06Alpat S1 paper · 2026
Department of Cardiovascular Surgery, Division of Pediatric Cardiac Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey.
Papers in Europe PMC - 07Arenas J1 paper · 1995Papers in Europe PMC
- 08Baráth S1 paper · 2025
Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
Papers in Europe PMC - 09Barrionuevo CR1 paper · 1995Papers in Europe PMC
- 10Bartnik E1 paper · 2018
Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, 02-106, Warsaw, Poland.
Papers in Europe PMC
Clinical research
Is a treatment being tested?
0
interventional trials for this specific condition
No interventional trial testing a treatment matched this specific condition name on ClinicalTrials.gov (observational studies and pan-disease registries are listed separately when present).
Data as of 11 September 2026 · last trial check 11 September 2026
No matched interventional trials. This is true for 77.2% of diseases in the trials denominator (5501 of 7126). Here are the researchers publishing on it.
medium confidence · 38.6th percentile (trials denominator)
Recruiting interventional trials
From the matched ClinicalTrials.gov set
No interventional trial testing a treatment was found for this specific condition name on ClinicalTrials.gov.
See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.
Other registries (secondary)
Broader net from EU CTIS, ISRCTN, and ICTRP when available — deduped against ClinicalTrials.gov IDs already counted above. Dual-model LLM relevance gates what we keep. These rows are not added to the interventional headline.
raw 0 · after dedupe 0 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 0 · dropped 0 · fetched 2026-07-30
Source notes: ictrp: Error: ICTRP public search unavailable (WHO portal is SPA-only; SOAP needs partnership). Tried: https://apps.who.int/tri
No secondary-registry studies passed dual-model relevance for this condition name (after dedupe).
Where to find support
Condition-specific patient organisations, when Orphanet lists them, are on the disease’s Orphanet page. We also link umbrella groups that support undiagnosed and ultra-rare families.
Orphanet entry for Progressive external ophthalmoplegia-myopathy-emaciation syndrome — check Associations / patient organisations on that page.
India — NPRD
Last verified 2026-07-26This ORPHAcode is not on our curated NPRD list (direct or Mondo-parent match). That does not decide clinical eligibility; families in India should ask a notified Centre of Excellence about current coverage.
Hand-curated for this project. ORPHAcode mappings are best-effort and may be incomplete or imprecise for umbrella categories. Parent (Mondo) matches mean the policy lists a broader category — confirm eligibility with a Centre of Excellence. Financial entitlements summarised from public policy statements and may change. This is not official government guidance.
How we counted this
Europe PMC query (preferred label + any corrected label + Orphanet and Mondo exact synonyms, stoplisted; unioned with resolved MeSH labels when available). UMLS / OMIM / NCIT cross-references are stored on the overview but are not added to the query string.
("Progressive external ophthalmoplegia-myopathy-emaciation syndrome" OR "Mitochondrial DNA maintenance syndrome due to MGME1 deficiency" OR "PEO-myopathy-emaciation syndrome" OR "mtDNA maintenance syndrome due to MGME1 deficiency" OR "MGME1 mitochondrial DNA depletion syndrome" OR "mitochondrial DNA depletion syndrome 11" OR "mitochondrial DNA depletion syndrome caused by mutation in MGME1" OR "mitochondrial DNA depletion syndrome type 11") OR ("MGME1" OR "MGME1 syndrome" OR "MGME1-related")ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Progressive external ophthalmoplegia-myopathy-emaciation syndrome" OR "Mitochondrial DNA maintenance syndrome due to MGME1 deficiency" OR "PEO-myopathy-emaciation syndrome" OR "mtDNA maintenance syndrome due to MGME1 deficiency" OR "MGME1 mitochondrial DNA depletion syndrome" OR "mitochondrial DNA depletion syndrome 11" OR "mitochondrial DNA depletion syndrome caused by mutation in MGME1" OR "mitochondrial DNA depletion syndrome type 11"
Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Query health: ok — strategies attempted: phrase; with hits: phrase
Run this search on ClinicalTrials.gov
Confidence reasoning
- Preferred label is multi-word and distinctive
- No synonyms dropped by stoplist
- No label/synonym collisions with other diseases in this corpus
- Publication count (424) is high for prevalence class "<1 / 1 000 000" — confidence capped at medium
Ingested 2026-07-27T14:11:53.876Z