RARE DISEASERESEARCH ATLAS

ORPHA:506784

Stevens-Johnson syndrome/toxic epidermal necrolysis overlap syndrome

high confidenceSubtype of disorder

Also known as: SJS/TEN overlap syndrome · Stevens-Johnson/TEN overlap syndrome · Stevens-Johnson/toxic epidermal necrolysis overlap syndrome

Publications

145

58.3th percentile

Trials

0

Interventional, condition-specific

Researchers

1,159

Distinct authors in sample

Gene link

Readiness

2/6

Stages with a signal

Clinical definition (Orphanet)

An intermediate form of Stevens-Johnson syndrome/toxic epidermal necrolysis spectrum characterized by destruction and detachment of the skin epithelium, involving between 10 to 29% of the body surface area, and mucous membranes. Onset usually occurs 4-28 days after administration of the causal medication and is most frequently associated with anticonvulsants, antibacterial sulfonamides, allopurinol, nevirapine, and oxicams (non-steroidal anti-inflammatory drugs), but many other medications have also been implicated. The disease is not induced by medication in 15% of cases. Histology is characterized by an epidermal necrolysis. Multiple disabling long-term sequelae (especially cutaneous, ocular and psychological) are frequent.

Orphanet entry

Cross-references

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

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 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

    145 matched papers (109 in last 10 years) Source

  3. Phenotype characterisedNot found

    No HPO disease–phenotype associations via Monarch for these Mondo IDs

  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; 14 for broader category toxic epidermal necrolysis

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)

None returned for this Mondo ID. That often means “not linked under this ID,” not “no clinical features.”

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?

145

145 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=3967) is 59.

145 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).

109 in the last 10 years · high confidence · 58.3th percentile (publications denominator)

Phrase hits: 145 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

1,159

Distinct author names in 145 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
    Ji C6 papers · 2024

    Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China. jichaofy@fjmu.edu.cn.

    Papers in Europe PMC
  2. 02
    Kim SH6 papers · 2019

    Department of Internal Medicine, Eulji University School of Medicine, Daejeon, Korea.

    Papers in Europe PMC
  3. 03
    Gong T4 papers · 2024

    Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.

    Papers in Europe PMC
  4. 04
    Chen Y3 papers · 2025

    College of Medicine, Chung Shan Medical University Hospital and Chung Shan Medical University, Taichung, Taiwan

    Papers in Europe PMC
  5. 05
    French LE3 papers · 2024

    Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany. Lars.French@med.uni-muenchen.de.

    Papers in Europe PMC
  6. 06
    Garcimartin M3 papers · 2016

    Hospital Infanta Leonor, Madrid, Spain

    Papers in Europe PMC
  7. 07
    Ingen-Housz-Oro S3 papers · 2024

    Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.

    Papers in Europe PMC
  8. 08
    Phillips EJ3 papers · 2022

    Division of infectious diseases, Institute of Immunology and Infectious Disease, Murdoch University, Murdoch, Western Australia; Division of Infectious Diseases, Vanderbilt University Medical Center, 1161 21st Avenue South, A-2200, Medical Center North, Nashville, TN 37232-2582, USA. Electronic address: elizabeth.j.phillips@vanderbilt.edu.

    Papers in Europe PMC
  9. 09
    Saito Y3 papers · 2024

    National Institute of Health Sciences, Tokyo, Japan

    Papers in Europe PMC
  10. 10
    Satoh TK3 papers · 2024

    Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany.

    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). 14 trials are registered for toxic epidermal necrolysis, 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.

high 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.

14 interventional trials matched toxic epidermal necrolysis, the broader category — listed below. Those studies are not counted in the condition-specific total.

Broader category: toxic epidermal necrolysis

14

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

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 1 · after dedupe 1 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 1 · 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 (1)

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 Stevens-Johnson syndrome/toxic epidermal necrolysis overlap 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.

"Stevens-Johnson syndrome/toxic epidermal necrolysis overlap syndrome" OR "SJS/TEN overlap syndrome" OR "Stevens-Johnson/TEN overlap syndrome" OR "Stevens-Johnson/toxic epidermal necrolysis overlap syndrome"

Run this search on Europe PMC

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

"Stevens-Johnson syndrome/toxic epidermal necrolysis overlap syndrome" OR "SJS/TEN overlap syndrome" OR "Stevens-Johnson/TEN overlap syndrome" OR "Stevens-Johnson/toxic epidermal necrolysis overlap syndrome"

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

Parent-category trials query:

"toxic epidermal necrolysis"

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

Ingested 2026-07-27T17:55:53.912Z