ORPHA:807
Sebastian syndrome
Also known as: Macrothrombocytopenia with leukocyte inclusions
Publications
153
Trials
0
Interventional, condition-specific
Researchers
813
Distinct authors in sample
Gene link
—
Readiness
1/6
Stages with a signal
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.”
1/6 stages with a signal
Research-stage checklist from open sources (GenCC, literature, Monarch when enriched, ClinicalTrials.gov). Not a prognosis or care recommendation.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteraturePresent
153 matched papers (65 in last 10 years) Source
- Phenotype characterisedNot checked
Not yet enriched from Monarch / HPO
- Animal modelNot checked
Not yet enriched from Monarch / Alliance
- Orphan designationNot checked
FDA/EMA orphan-drug designation not enriched yet
- 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?
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?
153
153 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.
153 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).
65 in the last 10 years · low confidence
Phrase hits: 153 · MeSH hits: 0
Who's working on it?
813
Distinct author names in 153 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.
- 01Kunishima S12 papers · 2025
Laboratory of Molecular Diagnosis, Department of Advanced Diagnosis, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya 460-0001, Japan. kunishis@nnh.hosp.go.jp
Papers in Europe PMC - 02Pecci A12 papers · 2018
Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation and University of Pavia, Pavia, Italy.
Papers in Europe PMC - 03Savoia A11 papers · 2018
Department of Medical Sciences, University of Trieste, via Dell'Istria, 65/1, I-34137 Trieste, Italy; IRCCS Burlo Garofolo, via Dell'Istria, 65/1, I-34137 Trieste, Italy. Electronic address: savoia@burlo.trieste.it.
Papers in Europe PMC - 04Balduini CL8 papers · 2014Papers in Europe PMC
- 05Seri M7 papers · 2014
Laboratory of Molecular Genetics, Institute G. Gaslini, Genoa, Italy.
Papers in Europe PMC - 06Noris P6 papers · 2014Papers in Europe PMC
- 07White JG6 papers · 2001Papers in Europe PMC
- 08Martignetti JA5 papers · 2011
Departments of Human Genetics and Pediatrics, Mount Sinai School of Medicine, New York, NY 10029. jam@msvax.mssm.edu
Papers in Europe PMC - 09Bizzaro N4 papers · 2003Papers in Europe PMC
- 10Bozzi V4 papers · 2016
Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation and University of Pavia, Italy.
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 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.
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 2026-07-26This 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.
"Sebastian syndrome" OR "Macrothrombocytopenia with leukocyte inclusions"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Sebastian syndrome" OR "Macrothrombocytopenia with leukocyte inclusions"
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 short or not clearly distinctive
- No synonyms dropped by stoplist
- "Sebastian syndrome" also appears on ORPHA:182050
- No Orphanet definition and no Mondo IDs — likely taxonomy scaffolding
Ingested 2026-07-26T15:26:00.693Z