ORPHA:563609
Isolated anencephaly
Publications
19
28.2th percentile
Trials
0
Interventional, condition-specific
Researchers
111
Distinct authors in sample
Gene link
—
Readiness
3/6
Stages with a signal
Cross-references
Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.
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.”
3/6 stages with a signal
No specific-condition interventional trial, but broader-category trials exist — discuss eligibility with a clinician.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteraturePresent
19 matched papers (10 in last 10 years) Source
- Phenotype characterisedPresent
6 HPO annotations (e.g. Intrauterine growth retardation; Omphalocele; Cleft lip) 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 trialPartial
None under the specific name; 2 for broader category anencephaly
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)
6
Associated phenotypes · MONDO:0035401
- Intrauterine growth retardation
- Omphalocele
- Cleft lip
- Adrenal hypoplasia
- Congenital diaphragmatic hernia
Showing 5 of 6 — 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?
19
19 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.
19 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).
10 in the last 10 years · high confidence · 28.2th percentile (publications denominator)
Phrase hits: 19 · MeSH hits: 0
Who's working on it?
111
Distinct author names in 19 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.
- 01Bao Y2 papers · 2018
Capital Institute of Pediatrics, No.2, Yabao Road, Chaoyang District, Beijing, 100020, People's Republic of China.
Papers in Europe PMC - 02Lu X2 papers · 2018
Capital Institute of Pediatrics, No.2, Yabao Road, Chaoyang District, Beijing, 100020, People's Republic of China.
Papers in Europe PMC - 03Wang J2 papers · 2018
Capital Institute of Pediatrics, No.2, Yabao Road, Chaoyang District, Beijing, 100020, People's Republic of China.
Papers in Europe PMC - 04Zhang T2 papers · 2018
Capital Institute of Pediatrics, No.2, Yabao Road, Chaoyang District, Beijing, 100020, People's Republic of China. zhangtingcv@126.com.
Papers in Europe PMC - 05Abaan HO1 paper · 2014
Molecular Pathogenesis Section, Genome Technology Branch, National Human Genome Research Institute, National Institutes of Health, Room 5306, 50 South Drive, Bethesda, MD, 20892-8004, USA. habaan@mail.nih.gov.
Papers in Europe PMC - 06
- 07Agopian AJ1 paper · 2015Papers in Europe PMC
- 08Aldous C1 paper · 2021
School of Clinical Medicine, College of Health Sciences, University of KwaZulu Natal, Durban, South Africa.
Papers in Europe PMC - 09Aranda-Sánchez CI1 paper · 2021
Center for Registry and Research in Congenital Anomalies (CRIAC), Service of Genetics and Cytogenetics Unit, Pediatrics Division, "Dr. Juan I. Menchaca" Civil Hospital of Guadalajara, Guadalajara, Mexico.
Papers in Europe PMC - 10Atkins L1 paper · 1976Papers 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). 2 trials are registered for anencephaly, 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.
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.
2 interventional trials matched anencephaly, the broader category — listed below. Those studies are not counted in the condition-specific total.
Broader category: anencephaly
2
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.
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 Isolated anencephaly — 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.
"Isolated anencephaly"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Isolated anencephaly"
Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Parent-category trials query:
"anencephaly"
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 2026-07-27T18:21:30.964Z