ORPHA:373
Simpson-Golabi-Behmel syndrome
Also known as: DGSX · Golabi-Rosen syndrome · SDYS · SGBS · SGBS1 · Simpson dysmorphia syndrome · Simpson-Golabi-Behmel syndrome type 1 · X-linked dysplasia gigantism syndrome
Publications
1,313
Trials
46
Interventional, condition-specific
Researchers
1,374
Distinct authors in sample
Gene link
GPC3
Definitive
Readiness
3/6
Stages with a signal
Clinical definition (Orphanet)
A rare X-linked multiple anomalies syndrome characterized by pre- and postnatal overgrowth, distinctive craniofacial features, variable malformations, organomegaly and an increased tumor risk.
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:0010731
- MeSH:C537340
- UMLS:C4317043
- NCIT:C131002
Additional Mondo synonyms (2)
SGB syndrome · Sara Angers 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.”
3/6 stages with a signal
An interventional trial matched this condition name on ClinicalTrials.gov — see trials below.
- Gene identifiedPresent
Definitive — GPC3
- LiteraturePresent
1,313 matched papers (743 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 trialPresent
46 matched on ClinicalTrials.gov (31 recruiting in sample)
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 (GPC3).
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?
1,313
1,313 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.
1,313 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).
743 in the last 10 years · low confidence
Phrase hits: 1,313 · MeSH hits: 0
Who's working on it?
1,374
Distinct author names in 200 sampled papers — named people below.
Who's working on it?
People publishing on this condition (sampled Europe PMC records). Affiliation is the most recent found in that sample.
- 01Wabitsch M30 papers · 2026
Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany.
Papers in Europe PMC - 02Li J6 papers · 2025
Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Papers in Europe PMC - 03Liu Y6 papers · 2026
Department of Medical and Molecular Genetics, School of Medicine, Indiana University, Indianapolis, IN 46202, USA.
Papers in Europe PMC - 04Villarroya F6 papers · 2026
Biochemistry and Molecular Biomedicine, Institute of Biomedicine, University of Barcelona, Barcelona, Spain fvillarroya@ub.edu.
Papers in Europe PMC - 05Quesada-López T5 papers · 2025
Biochemistry and Molecular Biomedicine, Institute of Biomedicine, University of Barcelona, Barcelona, Spain.
Papers in Europe PMC - 06Tews D5 papers · 2026
Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany.
Papers in Europe PMC - 07Ali U4 papers · 2025
Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy.
Papers in Europe PMC - 08Kalish JM4 papers · 2024
Division of Human Genetics, Children's Hospital of Philadelphia.
Papers in Europe PMC - 09Moizard MP4 papers · 2019
Service de Génétique, CHU de Tours, Hôpital Bretonneau, Tours, France.
Papers in Europe PMC - 10Toutain A4 papers · 2019
Service de Génétique, CHU de Tours, Hôpital Bretonneau, Tours, France.
Papers in Europe PMC
Clinical research
Is a treatment being tested?
46
interventional trials for this specific condition
46 interventional trials matched this specific condition name; 31 currently recruiting in our sample.
Data as of 27 July 2026
46 interventional trials — more than 73% of diseases in the trials denominator have none at all (5114 of 7003; this disease is at the 96.9th percentile).
low confidence · 96.9th percentile (trials denominator)
Recruiting interventional trials
From the matched ClinicalTrials.gov set
46 interventional trials matched after quoted-phrase search and title/condition post-filter.
- NCT07224568·NOT YET RECRUITING·Cytokine Armored GPC3 Specific Chimeric Antigen Receptor Expressing T-cells in Adults With Solid Tumors
Conditions: Solid Tumor (Excluding CNS) · Hepatocellular Carcinoma · Liver Cell Carcinoma · Liposarcoma·Matched via name phrase
- NCT07513194·NOT YET RECRUITING·GPC3 CAR T Cells With IL-15 and IL-21 for Recurrent ATRT and CNS Rhabdoid Tumors (RADIANT)
Conditions: Atypical Teratoid Rhabdoid Tumor · Central Nervous System Rhabdoid Tumor·Matched via name phrase
- NCT07352345·NOT YET RECRUITING·Head to Head, Prospective, Open Label Multicenter Study on the Diagnostic Efficacy of GPC3 Targeted PET Imaging and Enhanced Magnetic Resonance Imaging for Hepatocellular Carcinoma
Conditions: Malignant Neoplasm of Liver·Matched via name phrase
- NCT07039201·RECRUITING·A Study to Evaluate CG-102-12C in Glypican-3 (GPC3) Positive Advanced Hepatocellular Carcinoma (HCC)
Conditions: Advanced Hepatocellular Carcinoma (HCC)·Matched via name phrase
- NCT07242417·RECRUITING·TC-G203 for Patients With GPC3-Positive Advanced Solid Tumors
Conditions: Solid Cancer · GPC3 Positive Hepatocellular Carcinoma·Matched via name phrase
- NCT06641453·NOT YET RECRUITING·CAR-T Cell Therapy Targeting GPC3 in Patients with Advanced GPC3-Positive Hepatocellular Carcinoma
Conditions: Hepatocellular Carcinoma (HCC)·Matched via name phrase
- NCT05003895·RECRUITING·GPC3 Targeted CAR-T Cell Therapy in Advanced GPC3 Expressing Solid Tumor Malignancies
Conditions: Hepatocellular Carcinoma · Hepatocellular Cancer · Metastatic Hepatocellular Carcinoma·Matched via name phrase
- NCT07353333·NOT YET RECRUITING·Preliminary Evaluation of Clinical Application of SPECT Imaging Targeting GPC3
Conditions: HCC · SPECT-CT·Matched via name phrase
- NCT06726161·RECRUITING·Study of the Theranostic Pair RYZ811 (Diagnostic) and RYZ801 (Therapeutic) to Identify and Treat Subjects With GPC3+ (Glypican-3) Unresectable HCC
Conditions: Hepatocellular Carcinoma (HCC)·Matched via name phrase
- NCT06478693·RECRUITING·A Study of MT-303 in Adults With Advanced or Metastatic GPC3-Expressing Cancers, Including HCC
Conditions: Hepatocellular Carcinoma·Matched via name phrase
- NCT05410717·RECRUITING·CLDN6/GPC3/Mesothelin/AXL-CAR-NK Cell Therapy for Advanced Solid Tumors
Conditions: Stage IV Ovarian Cancer · Testis Cancer, Refractory · Endometrial Cancer Recurrent · CAR NK·Matched via name phrase
- NCT05779917·RECRUITING·Mesothelin/GPC3/GUCY2C-CAR-T Cells Against Cancers
Conditions: Pancreas Cancer · CAR-T Cell Therapy · Mesothelin · Solid Tumor, Adult·Matched via name phrase
- NCT06461624·RECRUITING·Clinical Trial of Autologous GPC3 CAR-T Cells (CBG166) Therapy for Advanced Hepatocellular Carcinoma
Conditions: Advanced Hepatocellular Carcinoma·Matched via name phrase
- NCT03198546·RECRUITING·GPC3-CAR-T Cells for Immunotherapy of Cancer With GPC3 Expression
Conditions: Hepatocellular Carcinoma · Immunotherapy · CAR · GPC3 Gene Inactivation·Matched via name phrase
- NCT07677774·RECRUITING·GPC3-Targeted PET/CT in Hepatocellular Carcinoma
Conditions: Hepatocellular Carcinoma (HCC) · Glypican-3 · GPC3-targeted PET/CT·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.
"Simpson-Golabi-Behmel syndrome" OR "Golabi-Rosen syndrome" OR "SGBS1" OR "Simpson dysmorphia syndrome" OR "Simpson-Golabi-Behmel syndrome type 1" OR "X-linked dysplasia gigantism syndrome" OR "SGB syndrome" OR "Sara Angers syndrome"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Simpson-Golabi-Behmel syndrome" OR "Golabi-Rosen syndrome" OR "SGBS1" OR "Simpson dysmorphia syndrome" OR "Simpson-Golabi-Behmel syndrome type 1" OR "X-linked dysplasia gigantism syndrome" OR "SGB syndrome" OR "Sara Angers syndrome" OR "GPC3"
Recall-expansion terms: GPC3
Interventional trials matched via: phrase (mesh = registered under a MeSH descriptor no name phrase would catch; recall-expansion = gene / selected parent terms used only for trials).
Study-type breakdown: 46 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Query health: ok — strategies attempted: phrase, recall-expansion; with hits: phrase, recall-expansion
Run this search on ClinicalTrials.gov
Synonyms dropped by stoplist: DGSX; SDYS; SGBS
Confidence reasoning
- Preferred label is multi-word and distinctive
- 3 synonym(s) dropped by stoplist (may under-count)
- No label/synonym collisions with other diseases in this corpus
- Publication count (1313) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity
Ingested 2026-07-26T13:36:32.377Z
