ORPHA:139426
Perioral myoclonia with absences
Also known as: POMA
Publications
32
27.5th percentile
Trials
0
Interventional, condition-specific
Researchers
103
Distinct authors in sample
Gene link
—
Readiness
1/6
Stages with a signal
Clinical definition (Orphanet)
A rare syndrome characterized by absence with perioral myoclonia as the main seizure type, accompanied by generalized tonic-clonic , appearing before or together with absences. Consciousness is usually impaired, although to variable degree. Commonly observed absence status epilepticus, poor response to antiepileptic drugs and persistence of into adulthood, in the presence of normal neurological status and intelligence, are additional clinical features of this syndrome.
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:0015345
- UMLS:C4707846
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.”
1/6 stages with a signal
Research-stage checklist from open sources (GenCC, literature, Monarch when enriched, ClinicalTrials.gov). Not a prognosis or care recommendation.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteraturePresent
32 matched papers (10 in last 10 years) Source
- Phenotype characterisedNot checked
Not yet enriched from Monarch / HPO
- Animal modelNot checked
Not yet enriched from Monarch / Alliance
- Orphan designationNot checked
FDA/EMA orphan-drug designation not enriched yet
- 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?
Not yet — the cause hasn't been pinned down in GenCC.
No strong gene–disease assertion joined for this Orphanet entity.
Phenotypes (Monarch / HPO)
Not enriched in this build — Monarch phenotype joins were not run for this record.
Animal models (Monarch / Alliance)
Not enriched in this build.
Literature
Is anyone studying this?
32
32 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=5449) is 41.
32 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 41 (publications denominator n=5449).
10 in the last 10 years · medium confidence · 27.5th percentile (publications denominator)
Phrase hits: 32 · MeSH hits: 0
Who's working on it?
103
Distinct author names in 32 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.
- 01Panayiotopoulos CP6 papers · 2005
Department of Clinical Neurophysiology and Epilepsies, St Thomas' Hospital, London SE1 7EH, UK.
Papers in Europe PMC - 02Agathonikou A3 papers · 1998
Department of Clinical Neurophysiology and Epilepsies, St. Thomas' Hospital, London, England.
Papers in Europe PMC - 03Baykan B2 papers · 2005
University of Istanbul, Istanbul Faculty of Medicine, Department of Neurology, Istanbul, Turkey. baykankurtg@superonline.com.tr
Papers in Europe PMC - 04Giannakodimos S2 papers · 1998Papers in Europe PMC
- 05Koutroumanidis M2 papers · 1998Papers in Europe PMC
- 06Adams SJ1 paper · 2016
College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
Papers in Europe PMC - 07Almubarak S1 paper · 2016
Division of Pediatric Neurology, Department of Pediatrics, University of Saskatchewan, Saskatoon, SK, Canada.
Papers in Europe PMC - 08Aneja S1 paper · 2013Papers in Europe PMC
- 09Barone FA1 paper · 2022
Epilepsy Unit, Department of Human Neurosciences, Policlinico "Umberto I", Sapienza University, Rome, Italy.
Papers in Europe PMC - 10Basnyat P1 paper · 2022
Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
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 27 July 2026
No matched interventional trials. This is true for 73% of diseases in the trials denominator (5114 of 7003). Here are the researchers publishing on it.
medium confidence · 36.5th 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.
Where to find support
We do not yet link condition-specific patient organisations. These umbrella groups support undiagnosed and ultra-rare families:
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.
"Perioral myoclonia with absences"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Perioral myoclonia with absences"
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
Synonyms dropped by stoplist: POMA
Confidence reasoning
- Preferred label is multi-word and distinctive
- 1 synonym(s) dropped by stoplist (may under-count)
- No label/synonym collisions with other diseases in this corpus
Ingested 2026-07-27T07:35:30.851Z