RARE DISEASERESEARCH ATLAS

ORPHA:125

Bloom syndrome

low confidenceDisorder

Also known as: BSyn

Query health: suspect — Only one of 2 strategies returned hits (phrase).

Publications

4,339

Trials

0

Interventional, condition-specific

Researchers

1,239

Distinct authors in sample

Gene link

BLM, RMI2

Definitive

Readiness

2/6

Stages with a signal

Clinical definition (Orphanet)

Bloom syndrome is a rare disorder associated with pre- and postnatal growth deficiency, a telangiectatic erythematous rash of the face and other sun-exposed areas, insulin resistance and predisposition to early onset and recurrent cancer of multiple organ systems.

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)

Bloom-Torre-Machacek syndrome · congenital telangiectatic erythema 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 matched interventional trial; the gene is known and literature exists — preclinical or natural-history work may still be the practical next step.

  1. Gene identifiedPresent

    Definitive — BLM, RMI2

  2. LiteraturePresent

    4,339 matched papers (1,937 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 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 (BLM, RMI2).

GenCC classification: Definitive.

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?

4,339

4,339 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=5449) is 41.

4,339 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).

1,937 in the last 10 years · low confidence

Phrase hits: 4,339 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

1,239

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
    Li Y6 papers · 2025

    Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany

    Papers in Europe PMC
  2. 02
    Liu J6 papers · 2026

    Department of Immunology, Basic Medical College, Guizhou Medical University, 9 Beijing Road, Guiyang 550025, People's Republic of China; State Key Laboratory of Functions and Applications of Medicinal Plants (Guizhou Medical University), Guizhou Science City, Guiyang 550014, People's Republic of China. Electronic address: liujielin@gmc.edu.cn.

    Papers in Europe PMC
  3. 03
    Wollnik B6 papers · 2026

    Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany

    Papers in Europe PMC
  4. 04
    Gönenc II5 papers · 2026

    Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany

    Papers in Europe PMC
  5. 05
    Yigit G5 papers · 2025

    Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany

    Papers in Europe PMC
  6. 06
    Zhang W5 papers · 2026

    Department of Immunology, Basic Medical College, Guizhou Medical University, 9 Beijing Road, Guiyang 550025, People's Republic of China.

    Papers in Europe PMC
  7. 07
    Zhang X5 papers · 2026

    Weifang People's Hospital, Shandong Second Medical University, Weifang, China.

    Papers in Europe PMC
  8. 08
    Chang VY4 papers · 2025

    Department of Pediatrics, University of California, Los Angeles, Los Angeles, CA.

    Papers in Europe PMC
  9. 09
    Cunniff C4 papers · 2025

    Department of Pediatrics, Weill Cornell Medical College, New York, NY. Electronic address: cmc9039@med.cornell.edu.

    Papers in Europe PMC
  10. 10
    Flanagan M4 papers · 2025

    Department of Pediatrics, Weill Cornell Medical College, New York, NY.

    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.

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.

low 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.

See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.

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.

None of the matched observational studies is currently listed as recruiting.

Open the complete matched search on ClinicalTrials.gov

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.

"Bloom syndrome" OR "Bloom-Torre-Machacek syndrome" OR "congenital telangiectatic erythema syndrome"

Run this search on Europe PMC

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

"Bloom syndrome" OR "Bloom-Torre-Machacek syndrome" OR "congenital telangiectatic erythema syndrome" OR "BLM" OR "RMI2"

Recall-expansion terms: BLM, RMI2

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

Query health: suspect — strategies attempted: phrase, recall-expansion; with hits: phrase

Run this search on ClinicalTrials.gov

Synonyms dropped by stoplist: BSyn

Confidence reasoning

  • Preferred label is short or not clearly distinctive
  • 1 synonym(s) dropped by stoplist (may under-count)
  • No label/synonym collisions with other diseases in this corpus
  • Publication count (4339) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-26T12:31:37.925Z