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ORPHA:99940

Autosomal dominant Charcot-Marie-Tooth disease type 2F

low confidenceDisorder

Also known as: CMT2F

Query health: suspect — Only one of 2 strategies returned hits (phrase).

Publications

12,852

Trials

0

Interventional, condition-specific

Researchers

969

Distinct authors in sample

Gene link

HSPB1

Definitive

Readiness

5/6

Stages with a signal

Clinical definition (Orphanet)

A form of axonal Charcot-Marie-Tooth disease, a peripheral sensorimotor , characterized by symmetric weakness primarily occurring in the lower limbs (distal muscles in a majority of cases) and reaching the arms only after 5 to 10 years, occasional and predominantly distal sensory loss and reduced tendon reflexes. It presents with gait anomaly between the 1st and 6th decade and early onset is generally associated to a more severe which may include foot drop.

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)

Charcot-Marie-Tooth disease type 2 caused by mutation in HSPB1 · HSPB1 Charcot-Marie-Tooth disease type 2 · autosomal dominant Charcot-Marie-Tooth disease type 2F

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.”

5/6 stages with a signal

No specific-condition interventional trial, but broader-category trials exist — discuss eligibility with a clinician.

  1. Gene identifiedPresent

    Definitive — HSPB1

  2. LiteraturePresent

    12,852 matched papers (7,439 in last 10 years) Source

  3. Phenotype characterisedPresent

    27 HPO annotations (e.g. Decreased motor nerve conduction velocity; Pes cavus; Muscle spasm) Source

  4. Animal modelPresent

    1 genotype model (Mus musculus) Source

  5. Orphan designationNot found

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

  6. Interventional trialPartial

    None under the specific name; 42 for broader category Charcot-Marie-Tooth disease

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 (HSPB1).

GenCC classification: Definitive.

Phenotypes (Monarch / HPO)

27

Associated phenotypes · MONDO:0011687

  • Decreased motor nerve conduction velocity
  • Pes cavus
  • Muscle spasm
  • Distal muscle weakness
  • Foot dorsiflexor weakness

Showing 5 of 27 — 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?

12,852

12,852 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.

12,852 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).

7,439 in the last 10 years · low confidence

Phrase hits: 176 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

969

Distinct author names in 176 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
    Timmerman V19 papers · 2025

    Peripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, Antwerpen, Belgium.

    Papers in Europe PMC
  2. 02
    De Winter V9 papers · 2025

    Peripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.

    Papers in Europe PMC
  3. 03
    Van Den Bosch L8 papers · 2024

    Laboratory of Neurobiology, Vesalius Research Center (VIB) and Leuven Research Institute for Neuroscience and Disease (LIND), KU Leuven , O&N4 Herestraat 49, B-3000 Leuven, Belgium.

    Papers in Europe PMC
  4. 04
    Asselbergh B7 papers · 2025

    Neuromics Support Facility, VIB Center for Molecular Neurology, University of Antwerp, Antwerp, Belgium.

    Papers in Europe PMC
  5. 05
    Shy ME7 papers · 2025

    Department of Neurology, Carver College of Medicine, University of Iowa, 200 Hawkins Drive, Iowa City, IA, 52242-1009, USA.

    Papers in Europe PMC
  6. 06
    Almeida-Souza L6 papers · 2017

    Peripheral Neuropathy Group, VIB Department of Molecular Genetics and University of Antwerp, 2610 Antwerp, Belgium.

    Papers in Europe PMC
  7. 07
    Choi BO6 papers · 2022

    Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, Korea. bochoi77@hanmail.net.

    Papers in Europe PMC
  8. 08
    De Jonghe P6 papers · 2010
    Papers in Europe PMC
  9. 09
    Irobi J5 papers · 2013

    Peripheral Neuropathy, VIB Department of Molecular Genetics, University of Antwerp, Antwerp, Belgium.

    Papers in Europe PMC
  10. 10
    Janssens S5 papers · 2017

    Unit Immunoregulation and Mucosal Immunology, VIB Inflammation Research Centre, Ghent University, Gent, Belgium.

    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). 42 trials are registered for Charcot-Marie-Tooth disease, the broader category — shown separately because they may or may not enrol this specific subtype.

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.

42 interventional trials matched Charcot-Marie-Tooth disease, the broader category — listed below. Those studies are not counted in the condition-specific total.

Broader category: Charcot-Marie-Tooth disease

42

Interventional trials for the parent category, exclusive of NCT IDs already counted above. Eligibility for this subtype is not guaranteed.

Worth raising with a clinician. How we count trials.

Recruiting under the broader category

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 Autosomal dominant Charcot-Marie-Tooth disease type 2F — 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.

("Autosomal dominant Charcot-Marie-Tooth disease type 2F" OR "CMT2F" OR "Charcot-Marie-Tooth disease type 2 caused by mutation in HSPB1" OR "HSPB1 Charcot-Marie-Tooth disease type 2") OR (MESH:"Charcot-Marie-Tooth disease, Type 2F") OR ("HSPB1" OR "HSPB1 syndrome" OR "HSPB1-related")

Run this search on Europe PMC

MeSH descriptor terms unioned into the query: Charcot-Marie-Tooth disease, Type 2F

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

"Autosomal dominant Charcot-Marie-Tooth disease type 2F" OR "CMT2F" OR "Charcot-Marie-Tooth disease type 2 caused by mutation in HSPB1" OR "HSPB1 Charcot-Marie-Tooth disease type 2" OR "Charcot-Marie-Tooth disease, Type 2F"

Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.

Parent-category trials query:

"Charcot-Marie-Tooth disease"

Query health: suspect — strategies attempted: phrase, mesh; 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 (12852) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-27T06:43:31.636Z