ORPHA:261183
15q11.2 microdeletion syndrome
Also known as: 15q11.2 BP1-BP2 microdeletion syndrome · Del(15)(q11.2) · Monosomy 15q11.2
Publications
101
55th percentile
Trials
0
Interventional, condition-specific
Researchers
888
Distinct authors in sample
Gene link
—
Readiness
2/6
Stages with a signal
Clinical definition (Orphanet)
15q11.2 microdeletion syndrome is a rare partial monosomy with a variable phenotypic expression and reduced penetrance associated with an increased susceptibility to neuropsychiatric or neurodevelopmental disorders including delayed psychomotor development, speech delay, autism spectrum disorder, attention deficit-hyperactivity disorder, obsessive-compulsive disorder, or . It may also include mild non-specific features (such as dysplastic ears, broad forehead, hypertelorism), cleft palate, neurological and neuroimaging abnormalities (such as and muscular ).
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.
Cross-references
Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.
- MONDO:0014294
- OMIM:615656
- UMLS:C3180937
Additional Mondo synonyms (2)
chromosome 15q11.2 deletion syndrome · monosomy 15q11.2
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.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteraturePresent
101 matched papers (85 in last 10 years) Source
- Phenotype characterisedPresent
80 HPO annotations (e.g. Abnormal pinna morphology; Intellectual disability; Global developmental delay) Source
- Animal modelNot found
No Alliance genotype “model of” associations via Monarch for these Mondo IDs
- Orphan designationNot found
No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source
- 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)
80
Associated phenotypes · MONDO:0014294
- Abnormal pinna morphology
- Intellectual disability
- Global developmental delay
- Motor delay
- Abnormal facial shape
Showing 5 of 80 — 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?
101
101 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.
101 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).
85 in the last 10 years · high confidence · 55th percentile (publications denominator)
Phrase hits: 101 · MeSH hits: 0
Who's working on it?
888
Distinct author names in 101 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.
- 01Butler MG8 papers · 2021
Department of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, Kansas, USA.
Papers in Europe PMC - 02Chen C4 papers · 2026
The Center of Prenatal Diagnosis, Sichuan Provincial Women's and Children's Hospital/The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China.
Papers in Europe PMC - 03He Y4 papers · 2025
Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-sen University, Meizhou, China.
Papers in Europe PMC - 04Wang Y4 papers · 2026
Department of rehabilitation, Anhui Provincial Children's Hospital, No.39, Wangjiang Road, Baohe District, Hefei, 230051, China.
Papers in Europe PMC - 05Yang X4 papers · 2026
Pediatric Research Institute, Children's Hospital Affiliated to Shandong University (Jinan Children's Hospital), Jinan, 250022, China.
Papers in Europe PMC - 06Zhang H4 papers · 2026
Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Papers in Europe PMC - 07
- 08Jiang Y3 papers · 2026
Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital.
Papers in Europe PMC - 09Li H3 papers · 2025
BGI-Anhui Clinical Laboratory, BGI-Shenzhen, 236000, Fuyang, China.
Papers in Europe PMC - 10Li Y3 papers · 2026
Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, China.
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 15q11.2 microdeletion syndrome — check Associations / patient organisations on that page.
India — NPRD
Last verified 2026-07-26This 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.
"15q11.2 microdeletion syndrome" OR "15q11.2 BP1-BP2 microdeletion syndrome" OR "Del(15)(q11.2)" OR "Monosomy 15q11.2" OR "chromosome 15q11.2 deletion syndrome"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"15q11.2 microdeletion syndrome" OR "15q11.2 BP1-BP2 microdeletion syndrome" OR "Del(15)(q11.2)" OR "Monosomy 15q11.2" OR "chromosome 15q11.2 deletion 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 2026-07-27T11:12:51.969Z