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ORPHA:1307

Distal limb deficiencies-micrognathia syndrome

medium confidenceDisorder

Also known as: 10q24 microduplication syndrome · Buttiens-Fryns syndrome

Publications

467

74.3th percentile

Trials

0

Interventional, condition-specific

Researchers

1,434

Distinct authors in sample

Gene link

FBXW4

Limited

Readiness

4/6

Stages with a signal

Clinical definition (Orphanet)

The distal limb deficiencies-micrognathia syndrome is characterized by the combination of symmetric severe distal limb reduction deficiencies affecting all four limbs (oligodactyly), microretrognathia, and microstomia with or without cleft palate.

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 (6)

SHFM3 · chromosome 10q24 duplication syndrome · split hand-foot malformation 3 · split hand-foot malformation type 3 · split-hand/foot malformation 3, gene duplication syndrome · split-hand/foot malformation type 3

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

    Limited — FBXW4

  2. LiteraturePresent

    467 matched papers (283 in last 10 years) Source

  3. Phenotype characterisedPresent

    44 HPO annotations (e.g. Posteriorly rotated ears; Microretrognathia; Hypoplasia of the maxilla) Source

  4. Animal modelPresent

    3 genotype models (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 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?

Possibly — only limited evidence so far for FBXW4.

GenCC classification: Limited.

Phenotypes (Monarch / HPO)

44

Associated phenotypes · MONDO:0009525

  • Posteriorly rotated ears
  • Microretrognathia
  • Hypoplasia of the maxilla
  • Abnormality of chromosome segregation
  • Oligodactyly

Showing 5 of 44 — open Monarch for the full list.

Animal models (Monarch / Alliance)

3

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?

467

467 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.

467 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).

283 in the last 10 years · medium confidence · 74.3th percentile (publications denominator)

Phrase hits: 307 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

1,434

Distinct author names in 200 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
    Zhang X10 papers · 2025

    Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland).

    Papers in Europe PMC
  2. 02
    Wang Y9 papers · 2025

    Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China.

    Papers in Europe PMC
  3. 03
    Jamsheer A7 papers · 2025

    Department of Medical Genetics, Poznan University of Medical Sciences, Poznan, Poland. jamsheer@wp.pl.

    Papers in Europe PMC
  4. 04
    Liu J7 papers · 2026

    Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China. junliu123@csu.edu.cn.

    Papers in Europe PMC
  5. 05
    Liu Z6 papers · 2022

    Department of Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Henan International Joint Laboratory of Intelligentized Orthopedics Innovation and Transformation, Henan Key Laboratory for Intelligent Precision Orthopedics, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China.

    Papers in Europe PMC
  6. 06
    Li Y5 papers · 2024

    Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China.

    Papers in Europe PMC
  7. 07
    Mundlos S5 papers · 2023

    Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany. stefan.mundlos@charite.de.

    Papers in Europe PMC
  8. 08
    Schwartz CE5 papers · 2011
    Papers in Europe PMC
  9. 09
    Sowińska-Seidler A5 papers · 2025

    Department of Medical Genetics, Poznan University of Medical Sciences, Poznan, Poland.

    Papers in Europe PMC
  10. 10
    Spielmann M5 papers · 2023

    Max Planck Institute for Molecular Genetics, RG Development and Disease, Berlin, Germany. malte.spielmann@uksh.de.

    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.

medium 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 2026-07-29

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).

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 Distal limb deficiencies-micrognathia 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.

("Distal limb deficiencies-micrognathia syndrome" OR "10q24 microduplication syndrome" OR "Buttiens-Fryns syndrome" OR "SHFM3" OR "chromosome 10q24 duplication syndrome" OR "split hand-foot malformation 3" OR "split hand-foot malformation type 3" OR "split-hand/foot malformation 3, gene duplication syndrome" OR "split-hand/foot malformation type 3") OR ("FBXW4" OR "FBXW4 syndrome" OR "FBXW4-related")

Run this search on Europe PMC

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

"Distal limb deficiencies-micrognathia syndrome" OR "10q24 microduplication syndrome" OR "Buttiens-Fryns syndrome" OR "SHFM3" OR "chromosome 10q24 duplication syndrome" OR "split hand-foot malformation 3" OR "split hand-foot malformation type 3" OR "split-hand/foot malformation 3, gene duplication syndrome" OR "split-hand/foot malformation type 3"

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 (467) is high for prevalence class "<1 / 1 000 000" — confidence capped at medium

Ingested 2026-07-26T16:59:23.504Z