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ORPHA:1757

Fibular dimelia-diplopodia syndrome

high confidenceDisorder

Also known as: Leg duplication-mirror foot syndrome

Publications

5

7th percentile

Trials

0

Interventional, condition-specific

Researchers

28

Distinct authors in sample

Gene link

—

Readiness

1/6

Stages with a signal

Clinical definition (Orphanet)

A very rare, genetic, limb syndrome characterized by duplication of the fibula associated with pre-axial mirror polydactyly of the foot, that may occur as an isolated or be associated with other anomalies, including ulnar dimelia, facial abnormalities and sacrococcygeal teratoma.

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 (1)

leg duplication-mirror foot 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.”

1/6 stages with a signal

Research-stage checklist from open sources (GenCC, literature, Monarch when enriched, ClinicalTrials.gov). Not a prognosis or care recommendation.

  1. Gene identifiedNot found

    No GenCC disease–gene assertion in this build

  2. LiteraturePresent

    5 matched papers (1 in last 10 years) Source

  3. Phenotype characterisedNot checked

    Not yet enriched from Monarch / HPO

  4. Animal modelNot checked

    Not yet enriched from Monarch / Alliance

  5. Orphan designationNot checked

    FDA/EMA orphan-drug designation not enriched yet

  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?

Not yet — the cause hasn't been pinned down in GenCC.

No strong gene–disease assertion joined for this Orphanet entity.

Phenotypes (Monarch / HPO)

Not enriched in this build — Monarch phenotype joins were not run for this record.

Animal models (Monarch / Alliance)

Not enriched in this build.

Literature

Is anyone studying this?

5

5 papers have ever been indexed 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=5449) is 41.

5 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 41 (publications denominator n=5449).

1 in the last 10 years · high confidence · 7th percentile (publications denominator)

Phrase hits: 5 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

28

Distinct author names in 5 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
    Caskey PM2 papers · 2004

    Shriners Hospitals for Children, Spokane, Washington 99204, USA. pcaskey@shrinenet.org

    Papers in Europe PMC
  2. 02
    Lester EL2 papers · 2004
    Papers in Europe PMC
  3. 03
    Abd El-Hamid MI1 paper · 2023

    Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt. Electronic address: mero_micro2006@yahoo.com.

    Papers in Europe PMC
  4. 04
    Al-Zaban MI1 paper · 2023

    Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.

    Papers in Europe PMC
  5. 05
    Awad NFS1 paper · 2023

    Department of Avian and Rabbit Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt.

    Papers in Europe PMC
  6. 06
    Baek GH1 paper · 2008

    Department of Orthopedic Surgery, College of Medicine, Seoul National University, Seoul, Korea. ghbaek@snu.ac.kr

    Papers in Europe PMC
  7. 07
    Chung MS1 paper · 2008
    Papers in Europe PMC
  8. 08
    Clasbrummel B1 paper · 1996
    Papers in Europe PMC
  9. 09
    Dávid A1 paper · 1996

    Department of Surgery, Berufsgenossenschaftliche Kliniken Bergmannsheil, University of Bochum, Germany.

    Papers in Europe PMC
  10. 10
    Eid S1 paper · 2023

    Department of Bacteriology, Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Dokki, Giza 12618, Egypt.

    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 27 July 2026

No matched interventional trials. This is true for 73% of diseases in the trials denominator (5114 of 7003). Here are the researchers publishing on it.

high confidence · 36.5th 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.

Where to find support

We do not yet link condition-specific patient organisations. These umbrella groups support undiagnosed and ultra-rare families:

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.

"Fibular dimelia-diplopodia syndrome" OR "Leg duplication-mirror foot syndrome"

Run this search on Europe PMC

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

"Fibular dimelia-diplopodia syndrome" OR "Leg duplication-mirror foot 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 2026-07-26T18:04:41.153Z