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ORPHA:3143

Autoimmune polyendocrinopathy type 2

medium confidenceDisorder

Also known as: APS type 2 · APS2 · Autoimmune polyendocrine syndrome type 2 · Autoimmune polyglandular syndrome type 2 · Autoimmune thyroid disease and/or type 1 diabetes-Addison disease syndrome · Schmidt syndrome

Publications

511

76.8th percentile

Trials

0

Interventional, condition-specific

Researchers

976

Distinct authors in sample

Gene link

—

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

A rare, endocrine disease characterized by autoimmune Addison disease associated with autoimmune thyroid disease or type I diabetes mellitus, or both, and without chronic candidiasis. Additional endocrine (hypogonadism, hypoparathyroidism) and non-endocrine diseases (vitiligo, autoimmune hepatitis, autoimmune gastritis, pernicious anemia, and myasthenia gravies) may be present.

How rare: How common this is has not been clearly measured.

Orphanet entry

Cross-references

Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.

Additional Mondo synonyms (4)

Autoimmune Polyendocrine Syndrome Type II · autoimmune polyendocrine syndrome type 2 · autoimmune polyglandular syndrome type 2 · autoimmune thyroid disease and/or type 1 diabetes-Addison disease 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.”

3/6 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

    511 matched papers (314 in last 10 years) Source

  3. Phenotype characterisedPresent

    32 HPO annotations (e.g. Abnormality of the thyroid gland; Hashimoto thyroiditis; Celiac disease) 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 trialPartial

    None under the specific name; 2 for broader category autoimmune polyendocrinopathy

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)

32

Associated phenotypes · MONDO:0010012

  • Abnormality of the thyroid gland
  • Hashimoto thyroiditis
  • Celiac disease
  • Primary adrenal insufficiency
  • Graves disease

Showing 5 of 32 — 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?

511

511 papers have been published on this condition. That is a real research literature — still far smaller than common diseases (breast cancer: over 700,000 papers). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.

511 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).

314 in the last 10 years · medium confidence · 76.8th percentile (publications denominator)

Phrase hits: 511 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

976

Distinct author names in 200 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
    Husebye ES4 papers · 2026

    From the Department of Clinical Science and K.G. Jebsen Center for Autoimmune Disorders, University of Bergen (E.S.H., O.K.), and the Department of Medicine, Haukeland University Hospital (E.S.H.), Bergen, Norway; the Department of Medicine (Solna), Karolinska Institutet, Stockholm (E.S.H., O.K.); and the Diabetes Center and the Department of Medicine, University of California, San Francisco, San Francisco (M.S.A.).

    Papers in Europe PMC
  2. 02
    Oftedal BE3 papers · 2026

    Institute of Genetic Medicine (A.P., C.M.N., H.F.A., H.J.C., S.H.S.P., A.L.M.), Newcastle University, Newcastle upon Tyne NE1 3BZ, United Kingdom; Department of Clinical Science (B.E.O., E.S.H.), University of Bergen, 5021 Bergen, Norway; and Department of Medicine (E.S.H.), Haukeland University Hospital, 5021 Bergen, Norway.

    Papers in Europe PMC
  3. 03
    Wolff ASB3 papers · 2026

    Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway.

    Papers in Europe PMC
  4. 04
    Ali A2 papers · 2025

    Internal Medicine, Khyber Medical College Peshawar, Peshawar, PAK.

    Papers in Europe PMC
  5. 05
    Allen-Brady K2 papers · 2025

    Division of Epidemiology, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84108, USA.

    Papers in Europe PMC
  6. 06
    Anderson MS2 papers · 2025

    From the Department of Clinical Science and K.G. Jebsen Center for Autoimmune Disorders, University of Bergen (E.S.H., O.K.), and the Department of Medicine, Haukeland University Hospital (E.S.H.), Bergen, Norway; the Department of Medicine (Solna), Karolinska Institutet, Stockholm (E.S.H., O.K.); and the Diabetes Center and the Department of Medicine, University of California, San Francisco, San Francisco (M.S.A.).

    Papers in Europe PMC
  7. 07
    Ayaki M2 papers · 2021

    Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School, Japan.

    Papers in Europe PMC
  8. 08
    Badenhoop K2 papers · 2020

    Department of Internal Medicine I, Division of Endocrinology, Diabetes and Metabolism, University Hospital Frankfurt, Frankfurt, Germany.

    Papers in Europe PMC
  9. 09
    Bensing S2 papers · 2026

    Department of Endocrinology, Karolinska University Hospital, Stockholm, Sweden.

    Papers in Europe PMC
  10. 10
    Betterle C2 papers · 2025

    Department of Medical and Surgical Sciences, Unit of Endocrinology, University of Padova, Padova Hospital, Padova, Italy. corrado.betterle@unipd.it

    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. 1 observational study did — shown below because natural-history and cohort work can be an important step toward a trial. 2 trials are registered for autoimmune polyendocrinopathy, 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.

medium 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 autoimmune polyendocrinopathy, the broader category — listed below. Those studies are not counted in the condition-specific total.

Broader category: autoimmune polyendocrinopathy

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.

Recruiting under the broader category

Observational and natural-history studies

1 observational study matches this condition. These do not test a treatment and are not counted in the interventional-trial headline, but they are genuine research: natural-history work often defines the endpoints needed for a future rare-disease trial, and families may be able to enroll.

Recruiting or not-yet-recruiting

Open the complete matched search on ClinicalTrials.gov

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 11 · after dedupe 11 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 11 · dropped 0 · fetched 2026-07-29

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).

Uncertain / not reviewed (11)

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 Autoimmune polyendocrinopathy type 2 — 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.

"Autoimmune polyendocrinopathy type 2" OR "APS type 2" OR "Autoimmune polyendocrine syndrome type 2" OR "Autoimmune polyglandular syndrome type 2" OR "Autoimmune thyroid disease and/or type 1 diabetes-Addison disease syndrome" OR "Schmidt syndrome" OR "Autoimmune Polyendocrine Syndrome Type II"

Run this search on Europe PMC

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

"Autoimmune polyendocrinopathy type 2" OR "APS type 2" OR "Autoimmune polyendocrine syndrome type 2" OR "Autoimmune polyglandular syndrome type 2" OR "Autoimmune thyroid disease and/or type 1 diabetes-Addison disease syndrome" OR "Schmidt syndrome" OR "Autoimmune Polyendocrine Syndrome Type II"

Study-type breakdown: 0 interventional · 1 observational · 0 expanded access. Only interventional studies enter the trial headline.

Parent-category trials query:

"autoimmune polyendocrinopathy"

Query health: ok — strategies attempted: phrase; with hits: phrase

Run this search on ClinicalTrials.gov

Synonyms dropped by stoplist: APS2

Confidence reasoning

  • Preferred label is multi-word and distinctive
  • 1 synonym(s) dropped by stoplist (may under-count)
  • No label/synonym collisions with other diseases in this corpus

Ingested 2026-07-26T22:18:35.660Z