ORPHA:333
Farber disease
Also known as: Acid ceramidase deficiency · Farber lipogranulomatosis
Query health: suspect — Only one of 2 strategies returned hits (phrase).
Publications
614
Trials
0
Interventional, condition-specific
Researchers
1,179
Distinct authors in sample
Gene link
ASAH1
Definitive
Readiness
2/6
Stages with a signal
Clinical definition (Orphanet)
A subcutaneous tissue disease characterized by a spectrum of clinical signs ranging from the classical triad of painful and progressively deformed joints, subcutaneous nodules, and hoarseness (due to laryngeal involvement) that presents in infancy, to varying phenotypes with respiratory and neurologic involvement.
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.
Cross-references
Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.
- MONDO:0009218
- MeSH:D055577
- OMIM:228000
- UMLS:C0268255
- NCIT:C84710
Additional Mondo synonyms (2)
N-LAURYLSPHINGOSINE deacylase deficiency · acid ceramidase deficiency
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.
- Gene identifiedPresent
Definitive — ASAH1
- LiteraturePresent
614 matched papers (359 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?
Yes — we know a specific gene responsible (ASAH1).
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?
614
614 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.
614 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).
359 in the last 10 years · low confidence
Phrase hits: 614 · MeSH hits: 0
Who's working on it?
1,179
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.
- 01Levade T23 papers · 2025
Laboratoire de Biochimie Métabolique, Institut Fédératif de Biologie, CHU Purpan, and INSERM UMR1037 CRCT, Université de Toulouse , Toulouse , France.
Papers in Europe PMC - 02Medin JA19 papers · 2025
Department of Medical Biophysics, University of Toronto, Toronto, ON M5S, Canada.
Papers in Europe PMC - 03Schuchman EH11 papers · 2025
Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, USA.
Papers in Europe PMC - 04Dworski S7 papers · 2022
Institute of Medical Science, University of Toronto, Toronto, Canada.
Papers in Europe PMC - 05Mckillop WM6 papers · 2025
Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
Papers in Europe PMC - 06Rybova J6 papers · 2025
Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
Papers in Europe PMC - 07
- 08Ehlert K5 papers · 2020
University Children's Hospital Muenster, Department of Pediatric Hematology and Oncology, Albert-Schweitzer-Strasse 33, D-48149 Muenster, Germany. ehlertk@mednet.uni-muenster.de
Papers in Europe PMC - 09Sikora J5 papers · 2022
Research Unit for Rare Diseases, Department of Pediatrics and Adolescent Medicine, Charles University, First Faculty of Medicine , Prague , Czech Republic.
Papers in Europe PMC - 10Yu FPS5 papers · 2019
Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada.
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. 3 observational studies 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
3 observational studies match 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
- NCT07173010·NOT YET RECRUITING·Pediatric Arthropathy Beyond Inflammation: Clinical Spectrum and Diagnostic Approach at Assiut University Children Hospital
Conditions: Mucopolysaccharidoses · Progressive Pseudorheumatoid Dysplasia · Farber Disease · Osteogenesis Imperfecta·Matched via name phrase
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.
"Farber disease" OR "Acid ceramidase deficiency" OR "Farber lipogranulomatosis" OR "N-LAURYLSPHINGOSINE deacylase deficiency"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Farber disease" OR "Acid ceramidase deficiency" OR "Farber lipogranulomatosis" OR "N-LAURYLSPHINGOSINE deacylase deficiency" OR "ASAH1"
Recall-expansion terms: ASAH1
Study-type breakdown: 0 interventional · 3 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
Confidence reasoning
- Preferred label is short or not clearly distinctive
- No synonyms dropped by stoplist
- No label/synonym collisions with other diseases in this corpus
- Publication count (614) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity
Ingested 2026-07-26T13:26:58.188Z