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ORPHA:314588

Distal triplication 15q syndrome

high confidenceSubtype of disorder

Also known as: Distal tetrasomy 15q · Tetrasomy 15(q25-qter) · Tetrasomy 15q26 · Triplication 15q25-qter · Triplication 15q26

Publications

5

8th percentile

Trials

0

Interventional, condition-specific

Researchers

51

Distinct authors in sample

Gene link

—

Readiness

2/6

Stages with a signal

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 (4)

distal tetrasomy type 15q · tetrasomy 15(q25-qter) · tetrasomy 15q26 · tetrasomy type 15Q26

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.”

2/6 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 characterisedPresent

    65 HPO annotations (e.g. Polycystic kidney dysplasia; Abnormal heart morphology; Atrial septal defect) 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?

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

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

Phenotypes (Monarch / HPO)

65

Associated phenotypes · MONDO:0013918

  • Polycystic kidney dysplasia
  • Abnormal heart morphology
  • Atrial septal defect
  • Nephroblastoma
  • Syringomyelia

Showing 5 of 65 — 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?

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=3967) is 59.

5 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).

1 in the last 10 years · high confidence · 8th percentile (publications denominator)

Phrase hits: 5 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

51

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
    Aktas D1 paper · 2013

    Hacettepe University School of Medicine, Dept of Medical Genetics, 06100 Sihhiye, Ankara, Turkey.

    Papers in Europe PMC
  2. 02
    Ala-Kokko L1 paper · 2012
    Papers in Europe PMC
  3. 03
    Alembik Y1 paper · 2005
    Papers in Europe PMC
  4. 04
    Baker S1 paper · 2012
    Papers in Europe PMC
  5. 05
    Bergonzini L1 paper · 2023

    IRCCS Istituto delle Scienze Neurologiche di Bologna, U.O.C. Neuropsichiatria dell'età Pediatrica, 40138 Bologna, Italy.

    Papers in Europe PMC
  6. 06
    Cirkovic S1 paper · 2013

    Laboratory for Medical Genetics, Mother and Child Health Care Institute of Serbia "Dr Vukan Cupic", Radoje Dakic str. 6-8, Belgrade 11070, Serbia.

    Papers in Europe PMC
  7. 07
    Cordelli DM1 paper · 2023

    IRCCS Istituto delle Scienze Neurologiche di Bologna, U.O.C. Neuropsichiatria dell'età Pediatrica, 40138 Bologna, Italy.

    Papers in Europe PMC
  8. 08
    de Almeida C1 paper · 2013

    Military Hospital associated with "Universidad de la República (UDELAR)", Montevideo, Uruguay.

    Papers in Europe PMC
  9. 09
    Fetta A1 paper · 2023

    IRCCS Istituto delle Scienze Neurologiche di Bologna, U.O.C. Neuropsichiatria dell'età Pediatrica, 40138 Bologna, Italy.

    Papers in Europe PMC
  10. 10
    Frederick B1 paper · 2012
    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.

high 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 2026-07-30

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 Distal triplication 15q 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 triplication 15q syndrome" OR "Distal tetrasomy 15q" OR "Tetrasomy 15(q25-qter)" OR "Tetrasomy 15q26" OR "Triplication 15q25-qter" OR "Triplication 15q26" OR "distal tetrasomy type 15q" OR "tetrasomy type 15Q26"

Run this search on Europe PMC

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

"Distal triplication 15q syndrome" OR "Distal tetrasomy 15q" OR "Tetrasomy 15(q25-qter)" OR "Tetrasomy 15q26" OR "Triplication 15q25-qter" OR "Triplication 15q26" OR "distal tetrasomy type 15q" OR "tetrasomy type 15Q26"

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 2026-07-27T13:09:21.615Z