RARE DISEASERESEARCH ATLAS
Open navigation menu

ORPHA:398097

Neonatal antiphospholipid syndrome

high confidenceDisorder

Also known as: Neonatal Hughes syndrome · Neonatal antiphospholipid antibody syndrome

Publications

126

61.7th percentile

Trials

0

Interventional, condition-specific

Researchers

608

Distinct authors in sample

Gene link

—

Readiness

2/6

Stages with a signal

Clinical definition (Orphanet)

antiphospholipid syndrome is a rare, secondary, autoimmune disease characterized by single or recurrent episodes of venous, arterial or mixed thrombosis in a neonate whose mother does not have antiphospholipid syndrome manifestations. Patients present positive antiphospholipid antibodies and may have additional abnormalities associated (e.g. cardiac valve disease, livedo reticularis, thrombocytopenia, nephropathy, neurological manifestations).

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 (2)

neonatal Hughes syndrome · neonatal antiphospholipid antibody 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.”

2/6 stages with a signal

No specific-condition interventional trial, but broader-category trials exist — discuss eligibility with a clinician.

  1. Gene identifiedNot found

    No GenCC disease–gene assertion in this build

  2. LiteraturePresent

    126 matched papers (76 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 trialPartial

    None under the specific name; 62 for broader category antiphospholipid syndrome

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?

126

126 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=5449) is 41.

126 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).

76 in the last 10 years · high confidence · 61.7th percentile (publications denominator)

Phrase hits: 126 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

608

Distinct author names in 126 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
    Wang X10 papers · 2026

    Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China. wxt65@sdfmu.edu.cn.

    Papers in Europe PMC
  2. 02
    Cai Y5 papers · 2026

    Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.

    Papers in Europe PMC
  3. 03
    Gao R5 papers · 2026

    （ 610041） The Reproductive Medical Center, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, China.

    Papers in Europe PMC
  4. 04
    Lv Q5 papers · 2026

    Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.

    Papers in Europe PMC
  5. 05
    Qin L5 papers · 2026

    （ 610041） The Reproductive Medical Center, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, China.

    Papers in Europe PMC
  6. 06
    Yachha SK5 papers · 1999

    Department of Gastroenterology (Pediatric GE), Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow.

    Papers in Europe PMC
  7. 07
    Cui L4 papers · 2024

    Department of Laboratory Medicine, Peking University Third Hospital, Beijing 100191, China.

    Papers in Europe PMC
  8. 08
    De Carolis S4 papers · 2023

    Dipartimento di Ginecologia e Ostetricia, Università Cattolica del Sacro Cuore, Rome, Italy.

    Papers in Europe PMC
  9. 09
    Huo R4 papers · 2026

    Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.

    Papers in Europe PMC
  10. 10
    Qi W4 papers · 2026

    Department of Obstetrics and Gynaecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of 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). 62 trials are registered for antiphospholipid syndrome, the broader category — shown separately because they may or may not enrol this specific subtype.

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.

62 interventional trials matched antiphospholipid syndrome, the broader category — listed below. Those studies are not counted in the condition-specific total.

Broader category: antiphospholipid syndrome

62

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.

Recruiting under the broader category

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.

"Neonatal antiphospholipid syndrome" OR "Neonatal Hughes syndrome" OR "Neonatal antiphospholipid antibody syndrome"

Run this search on Europe PMC

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

"Neonatal antiphospholipid syndrome" OR "Neonatal Hughes syndrome" OR "Neonatal antiphospholipid antibody syndrome"

Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.

Parent-category trials query:

"antiphospholipid syndrome"

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 2026-07-27T15:18:03.214Z