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ORPHA:659396

Cohen-Gibson syndrome

high confidenceDisorder

Also known as: EED-related overgrowth syndrome

Publications

107

57.1th percentile

Trials

0

Interventional, condition-specific

Researchers

763

Distinct authors in sample

Gene link

EED

Strong

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

A rare PRC-2 complex-related overgrowth spectrum disorder characterized by tall stature, (more severe than other diseases-Weaver syndrome and Imagawa-Matsumoto syndome in the spectrum), persistent features (including hypertelorism, large fleshy ears, retrognathia, crease between the mouth and the chin) that remains distinguishable in adulthood, severe musculoskeletal abnormalities (including kyphosis and/or scoliosis, abnormalities of the cervical spine, restricted joint movement and unusually large hands). Cardiac problems, cryptorchidism and umbilical hernias are more frequent whereas presence of tumors is less frequent compared to other diseases in the spectrum.

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.

Orphanet entry

Cross-references

Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.

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.

  1. Gene identifiedPresent

    Strong — EED

  2. LiteraturePresent

    107 matched papers (102 in last 10 years) Source

  3. Phenotype characterisedPresent

    45 HPO annotations (e.g. Patent ductus arteriosus; Epicanthus; Flared metaphysis) Source

  4. Animal modelNot found

    No Alliance genotype “model of” associations via Monarch for these Mondo IDs

  5. Orphan designationNot found

    No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source

  6. 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 (EED).

GenCC classification: Strong.

Phenotypes (Monarch / HPO)

45

Associated phenotypes · MONDO:0060510

  • Patent ductus arteriosus
  • Epicanthus
  • Flared metaphysis
  • Small nail
  • Large hands

Showing 5 of 45 — 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 2026-07-27

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?

107

107 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.

107 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).

102 in the last 10 years · high confidence · 57.1th percentile (publications denominator)

Phrase hits: 75 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

763

Distinct author names in 75 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.

  1. 01
    Sadikovic B10 papers · 2025

    Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.

    Papers in Europe PMC
  2. 02
    Gibson WT7 papers · 2025

    Department of Medical Genetics, University of British Columbia and British Columbia Children's Hospital Research Institute, Vancouver, BC, Canada.

    Papers in Europe PMC
  3. 03
    Haghshenas S7 papers · 2024

    Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada.

    Papers in Europe PMC
  4. 04
    Levy MA7 papers · 2025

    Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.

    Papers in Europe PMC
  5. 05
    McConkey H7 papers · 2025

    Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.

    Papers in Europe PMC
  6. 06
    Fahrner JA6 papers · 2024

    Departments of Genetic Medicine and Pediatrics, Johns Hopkins University, Baltimore, MD 21205, USA.

    Papers in Europe PMC
  7. 07
    Kerkhof J6 papers · 2024

    Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.

    Papers in Europe PMC
  8. 08
    Relator R6 papers · 2025

    Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.

    Papers in Europe PMC
  9. 09
    Rooney K5 papers · 2025

    Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.

    Papers in Europe PMC
  10. 10
    Alders M4 papers · 2025

    Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.

    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 9 September 2026 · last trial check 9 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.

high 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 2026-07-27

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 Cohen-Gibson syndrome — check Associations / patient organisations on that page.

India — NPRD

Last verified 2026-07-26

This 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.

("Cohen-Gibson syndrome" OR "EED-related overgrowth syndrome") OR ("EED syndrome" OR "EED-related")

Run this search on Europe PMC

ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):

"Cohen-Gibson syndrome" OR "EED-related overgrowth syndrome"

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

Ingested 2026-07-26T02:26:39.460Z