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ORPHA:99807

PEHO-like syndrome

low confidenceDisorder

Publications

731

Trials

0

Interventional, condition-specific

Researchers

264

Distinct authors in sample

Gene link

CCDC88A

Strong

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

PEHO-like syndrome is a rare, genetic neurological disease characterized by , early-onset with a hypsarrhythmic pattern, facial and limb edema, severe , early arrest of psychomotor development and craniofacial dysmorphism (evolving microcephaly, narrow forehead, short nose, prominent auricles, open mouth, micrognathia), in the absence of neuro-ophthalmic or neuroradiologic findings. Poor visual responsiveness, growth failure and tapering fingers are also associated.

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 (3)

PEHO syndrome-like · peho-like syndrome · progressive encephalopathy with edema, hypsarrhythmia, and optic atrophy-like syndrome

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 — CCDC88A

  2. LiteraturePresent

    731 matched papers (489 in last 10 years) Source

  3. Phenotype characterisedPresent

    30 HPO annotations (e.g. Sloping forehead; Retrognathia; Progressive microcephaly) 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 (CCDC88A).

GenCC classification: Strong.

Phenotypes (Monarch / HPO)

30

Associated phenotypes · MONDO:0020495

  • Sloping forehead
  • Retrognathia
  • Progressive microcephaly
  • Feeding difficulties
  • Visual fixation instability

Showing 5 of 30 — 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?

731

731 papers have been published on this condition. That is a real research literature — still far smaller than common diseases (breast cancer: over 700,000 papers). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.

731 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).

489 in the last 10 years · low confidence

Phrase hits: 31 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

264

Distinct author names in 31 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
    Brady AF2 papers · 2018

    North West Thames Regional Genetics Service, Level 8V, London North West Healthcare NHS Trust, Watford Road, Harrow, HA1 3UJ, UK cw347@cam.ac.uk angela.brady@nhs.net mtakaha@med.nagoya-u.ac.jp.

    Papers in Europe PMC
  2. 02
    Kato M2 papers · 2016

    Department of Pediatrics, Showa University School of Medicine, Tokyo 142-8555, Japan.

    Papers in Europe PMC
  3. 03
    Lesca G2 papers · 2023

    Department of Medical Genetics, Lyon University Hospital, Université Claude Bernard Lyon 1, member of the European Reference Network EpiCARE, Lyon, France.

    Papers in Europe PMC
  4. 04
    Mefford HC2 papers · 2023

    Department of Pediatrics, University of Washington, Seattle, Washington, USA.

    Papers in Europe PMC
  5. 05
    Muir AM2 papers · 2023

    Department of Pediatrics, University of Washington, Seattle, Washington, USA.

    Papers in Europe PMC
  6. 06
    Nahorski MS2 papers · 2018

    Cambridge Institute for Medical Research, University of Cambridge, Cambridge, CB2 0XY, UK.

    Papers in Europe PMC
  7. 07
    Woods CG2 papers · 2018

    Cambridge Institute for Medical Research, University of Cambridge, Cambridge, CB2 0XY, UK cw347@cam.ac.uk angela.brady@nhs.net mtakaha@med.nagoya-u.ac.jp.

    Papers in Europe PMC
  8. 08
    Abdel Ghafar SF1 paper · 2024

    Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt.

    Papers in Europe PMC
  9. 09
    Abdel-Hamid MS1 paper · 2024

    Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt.

    Papers in Europe PMC
  10. 10
    Abdulkareem AA1 paper · 2019

    Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah, 21589, Kingdom of Saudi Arabia.

    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 1 · after dedupe 1 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 1 · 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).

Uncertain / not reviewed (1)

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 PEHO-like 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.

("PEHO-like syndrome" OR "PEHO syndrome-like" OR "progressive encephalopathy with edema, hypsarrhythmia, and optic atrophy-like syndrome") OR ("CCDC88A" OR "CCDC88A syndrome" OR "CCDC88A-related")

Run this search on Europe PMC

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

"PEHO-like syndrome" OR "PEHO syndrome-like" OR "progressive encephalopathy with edema, hypsarrhythmia, and optic atrophy-like 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
  • Publication count (731) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-27T06:18:59.449Z