RARE DISEASERESEARCH ATLAS

ORPHA:444092

Autoimmune interstitial lung disease-arthritis syndrome

low confidenceDisorder

Also known as: COPA syndrome

Publications

5,771

Trials

0

Interventional, condition-specific

Researchers

1,103

Distinct authors in sample

Gene link

COPA

Strong

Readiness

4/6

Stages with a signal

Clinical definition (Orphanet)

A rare genetic systemic or rheumatologic disease characterized by interstitial lung disease (often with pulmonary hemorrhage) and inflammatory arthritis, associated with high-titer autoantibodies (including anti-nuclear and anti-neutrophil cytoplasmic antibodies, and rheumatoid factor). Patients present from infancy to adolescence with tachypnea, cough, hemoptysis, and/or joint pain. Some patients may also develop glomerular disease.

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)

COPA Syndrome · autoinflammation and autoimmunity, systemic, with immune dysregulation

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.”

4/6 stages with a signal

No matched interventional trial, but a gene association and an animal model are on record — often described as translation-ready / stalled at the clinical step.

  1. Gene identifiedPresent

    Strong — COPA

  2. LiteraturePresent

    5,771 matched papers (3,710 in last 10 years) Source

  3. Phenotype characterisedPresent

    44 HPO annotations (e.g. Vasculitis; Cerebral hemorrhage; Glomerulonephritis) Source

  4. Animal modelPresent

    1 genotype model (Mus musculus) Source

  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?

Yes — we know a specific gene responsible (COPA).

GenCC classification: Strong.

Phenotypes (Monarch / HPO)

44

Associated phenotypes · MONDO:0014629

  • Vasculitis
  • Cerebral hemorrhage
  • Glomerulonephritis
  • Hematochezia
  • Decreased hemoglobin concentration

Showing 5 of 44 — open Monarch for the full list.

Animal models (Monarch / Alliance)

1

Model associations linked to this Mondo ID

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?

5,771

5,771 papers — among the better-studied rare conditions, though still a fraction of common-disease literature (breast cancer: over 700,000). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.

5,771 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).

3,710 in the last 10 years · low confidence

Phrase hits: 315 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

1,103

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
    Frémond ML15 papers · 2026

    Université Paris Cité, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, INSERM UMR 1163, Paris, France.

    Papers in Europe PMC
  2. 02
    Shum AK13 papers · 2026

    Department of Medicine, Division of Pulmonary and Critical Care, University of California San Francisco, San Francisco, CA, USA.

    Papers in Europe PMC
  3. 03
    Griese M10 papers · 2026

    Dr. von Hauner Children´s Hospital, University of Munich, German Center for Lung Research (DZL), Lindwurmstraße 4, 80337, Munich, Germany. Matthias.griese@med.uni-muenchen.de.

    Papers in Europe PMC
  4. 04
    Nathan N10 papers · 2026

    Peditric Pulmonology Department and Reference Centre for Rare Lung Diseases RespiRare, INSERM UMR_S933 Laboratory of Childhood Genetic Diseases, Armand Trousseau Hospital, Sorbonne University and APHP, 75012 Paris, France.

    Papers in Europe PMC
  5. 05
    Law CS8 papers · 2025

    Dept of Medicine, Division of Pulmonary and Critical Care, University of California San Francisco, San Francisco, CA, USA.

    Papers in Europe PMC
  6. 06
    Taguchi T8 papers · 2026

    Laboratory of Organelle Pathophysiology, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan. tom_taguchi@tohoku.ac.jp.

    Papers in Europe PMC
  7. 07
    Wang Y8 papers · 2025

    Department of Respiratory Medicine, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China.

    Papers in Europe PMC
  8. 08
    Belot A7 papers · 2026

    CIRI, International Center of Research in Infectiology, Lyon University, INSERM U1111, CNRS UMR 5308, ENS, UCBL, Lyon, France; National Reference Center for Rheumatic, Systemic Autoimmune Diseases and Interferonopathies in Children (RAISE), Hospices Civils of Lyon, Lyon, France; Pediatric Nephrology Rheumatology Dermatology Unit, Lyon University Hospital, Bron, France. Electronic address: alexandre.belot@chu-lyon.fr.

    Papers in Europe PMC
  9. 09
    Crow YJ7 papers · 2026

    MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK. yanickcrow@mac.com.

    Papers in Europe PMC
  10. 10
    Deng Z7 papers · 2025

    Dept of Medicine, Division of Pulmonary and Critical Care, University of California San Francisco, San Francisco, CA, USA.

    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.

low 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 60 · after dedupe 57 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 57 · 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).

Uncertain / not reviewed (57)

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 interstitial lung disease-arthritis 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.

("Autoimmune interstitial lung disease-arthritis syndrome" OR "COPA syndrome" OR "autoinflammation and autoimmunity, systemic, with immune dysregulation") OR ("COPA" OR "COPA-related")

Run this search on Europe PMC

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

"Autoimmune interstitial lung disease-arthritis syndrome" OR "COPA syndrome" OR "autoinflammation and autoimmunity, systemic, with immune dysregulation"

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
  • Publication count (5771) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-27T16:28:58.329Z