RARE DISEASERESEARCH ATLAS

ORPHA:1125

Ocular motor apraxia, Cogan type

low confidenceDisorder

Also known as: Oculomotor apraxia, Cogan type

Publications

5,625

Trials

0

Interventional, condition-specific

Researchers

7

Distinct authors in sample

Gene link

SUFU

Strong

Readiness

4/6

Stages with a signal

Clinical definition (Orphanet)

Ocular motor apraxia, Cogan type is characterised by impairment of voluntary horizontal eye movements and compensatory head thrust. Around 50 cases have been described so far. The oculomotor manifestations tend to improve with age but the syndrome may also be associated with learning and speech difficulties, or, in some cases, cerebral malformations. Both sporadic and familial forms have been described, with sporadic forms being more frequent. The mode of transmission of the familial form has not yet been clearly established. A gene located on the long arm of chromosome 2, near to the NPHP1 gene involved in nephronophthisis, may be associated with ocular motor apraxia, Cogan type.

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.

Additional Mondo synonyms (2)

oculomotor apraxia, Cogan type · oculomotor apraxia, congenital, Cogan-type

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.”

4/6 stages with a signal

No matched interventional trial, but a gene association and an animal model are on record — often described as translation-ready / stalled at the clinical step.

  1. Gene identifiedPresent

    Strong — SUFU

  2. LiteraturePresent

    5,625 matched papers (4,158 in last 10 years) Source

  3. Phenotype characterisedPresent

    19 HPO annotations (e.g. Jerky head movements; Seizure; Oculomotor apraxia) Source

  4. Animal modelPresent

    1 genotype model (Danio rerio) Source

  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 (SUFU).

GenCC classification: Strong.

Phenotypes (Monarch / HPO)

19

Associated phenotypes · MONDO:0009764

  • Jerky head movements
  • Seizure
  • Oculomotor apraxia
  • Ataxia
  • Delayed speech and language development

Showing 5 of 19 — open Monarch for the full list.

Animal models (Monarch / Alliance)

1

Model associations linked to this Mondo ID

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?

5,625

5,625 papers — among the better-studied rare conditions, though still a fraction of common-disease literature (breast cancer: over 700,000). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.

5,625 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).

4,158 in the last 10 years · low confidence

Phrase hits: 3 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

7

Distinct author names in 3 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
    Gleeson JG1 paper · 2011

    Department of Neurosciences and Paediatrics, University of California, San Diego, La Jolla, CA, USA.

    Papers in Europe PMC
  2. 02
    Jan JE1 paper · 1997
    Papers in Europe PMC
  3. 03
    Kim M1 paper · 2025

    Department of Ophthalmology, Seoul National University College of Medicine, Seoul, South Korea.

    Papers in Europe PMC
  4. 04
    Kim US1 paper · 2025

    Department of Ophthalmology, Chung-Ang University, College of Medicine, Seoul, South Korea. ungsookim@cau.ac.kr.

    Papers in Europe PMC
  5. 05
    Poskitt KJ1 paper · 1997
    Papers in Europe PMC
  6. 06
    Sargent MA1 paper · 1997

    Department of Radiology, British Columbia's Children's Hospital, Vancouver, Canada.

    Papers in Europe PMC
  7. 07
    Sattar S1 paper · 2011

    Department of Neurosciences and Paediatrics, University of California, San Diego, La Jolla, CA, USA.

    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.

low 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 60 · after dedupe 59 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 59 · dropped 0 · fetched 2026-07-29

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).

Uncertain / not reviewed (59)

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 Ocular motor apraxia, Cogan type — 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.

("Ocular motor apraxia, Cogan type" OR "Oculomotor apraxia, Cogan type" OR "oculomotor apraxia, congenital, Cogan-type") OR ("SUFU" OR "SUFU syndrome" OR "SUFU-related")

Run this search on Europe PMC

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

"Ocular motor apraxia, Cogan type" OR "Oculomotor apraxia, Cogan type" OR "oculomotor apraxia, congenital, Cogan-type"

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 (5625) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-26T16:28:13.160Z