OncoSignal
Live from Open Targets Platform, fetched 2026-11-11 15:25 UTC. Every row links to its source record.

SDC4 syndecan 4

ENSG00000124145 · protein coding · Open Targets profile

Cell surface proteoglycan which regulates exosome biogenesis in concert with SDCBP and PDCD6IP (PubMed:22660413). .

In 15 of 15 cancers, the evidence for SDC4 comes mainly from mutations found in tumours

Each row is a cancer, strongest overall evidence first. The two dots show how strong the inherited (germline) and tumour-mutation (somatic) evidence is; the line between them is the gap.

Inherited (germline) variantsMutations in tumours (somatic)
00.250.50.751non-small cell lung carcinomanon-small cell lung carcinomanon-small cell lung carcinoma: somatic 0.61lung adenocarcinomalung adenocarcinomalung adenocarcinoma: somatic 0.61acinar lung adenocarcinomaacinar lung adenocarcinomaacinar lung adenocarcinoma: somatic 0.61gastric adenocarcinomagastric adenocarcinomagastric adenocarcinoma: somatic 0.46diffuse gastric adenocarcinomadiffuse gastric adenocarcinomadiffuse gastric adenocarcinoma: somatic 0.46signet ring cell gastric adenocarcinomasignet ring cell gastric adenocarcinomasignet ring cell gastric adenocarcinoma: somatic 0.46squamous cell lung carcinomasquamous cell lung carcinomasquamous cell lung carcinoma: somatic 0.46thyroid gland papillary carcinomathyroid gland papillary carcinomathyroid gland papillary carcinoma: somatic 0.30hepatocellular carcinomahepatocellular carcinomahepatocellular carcinoma: somatic 0.30breast carcinomabreast carcinomabreast carcinoma: somatic 0.30lung carcinomalung carcinomalung carcinoma: somatic 0.30thyroid gland carcinomathyroid gland carcinomathyroid gland carcinoma: somatic 0.30exocrine pancreatic carcinomaexocrine pancreatic carcinomaexocrine pancreatic carcinoma: somatic 0.30pancreatic ductal adenocarcinomapancreatic ductal adenocarcinomapancreatic ductal adenocarcinoma: somatic 0.30prostate carcinomaprostate carcinomaprostate carcinoma: somatic 0.30

Scores run from 0 (no evidence) to 1 (strongest). A missing dot at 0 means Open Targets holds no evidence of that kind. Source: Open Targets Platform, fetched live.

Tractability

Small molecule
Approved Drug
Antibody
UniProt loc high conf, GO CC high conf, UniProt loc med conf, UniProt SigP or TMHMM, Human Protein Atlas loc
PROTAC
Database Ubiquitination, Half-life Data

gnomAD loss of function constraint: o/e 0.8301699757575989 (upper bound 1.2452000379562378). Low values mean loss of function is poorly tolerated, a safety flag for inhibition.

Who runs trials of these drugs

Principal investigators and study chairs on 13 registry trials, updated in the last three years, of the most advanced drugs against SDC4 (repotrectinib), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.

6 of 13 trials of drugs against SDC4 have sites only in United States

Registry trials of repotrectinib updated in the last three years, counted by the country group of their listed sites. A trial with sites in several groups counts in each; 8 of 13 have all sites in one country.

Sites only in this groupSites here and elsewhere
United StatesUnited States: 6 trials with sites only hereUnited States: 4 trials with sites here and elsewhere10ChinaChina: 0 trials with sites only hereChina: 2 trials with sites here and elsewhere2EuropeEurope: 3 trials with sites only hereEurope: 4 trials with sites here and elsewhere7JapanJapan: 0 trials with sites only hereJapan: 2 trials with sites here and elsewhere2OtherOther: 0 trials with sites only hereOther: 4 trials with sites here and elsewhere4

Site counts are not patients per country, and trials registered only outside ClinicalTrials.gov are not covered. Where sites are is a fact about the record, not a judgement of its quality. Europe is the EU and EEA, the UK and Switzerland. Source: ClinicalTrials.gov, fetched live.

4 trials of drugs against SDC4 were stopped early

Terminated, withdrawn and suspended interventional trials of repotrectinib, newest update first, live from ClinicalTrials.gov. Each reason is quoted exactly as the registry gives it; we do not sort reasons into safety, efficacy or business. Dates are the last registry update. Showing the 4 most recent of 4.

  • terminated · 2026-01-05 · M.D. Anderson Cancer Center · Repotrectinib
    “<75% Participation”
  • withdrawn · 2025-04-01 · Turning Point Therapeutics, Inc. · matched by the registry's drug synonyms
    “Insufficient enrollment”
  • terminated · 2024-04-02 · Turning Point Therapeutics, Inc. · matched by the registry's drug synonyms
    “Inability to achieve and optimize a dose that could provide a positive benefit risk profile”
  • withdrawn · 2023-09-26 · Turning Point Therapeutics, Inc. · repotrectinib (TPX-0005)
    “Insufficient enrollment”
Paediatric incentives and obligations for SDC4's drugs

For repotrectinib: what EMA and FDA publish about paediatric plans, orphan status and pediatric approvals, and how many registered studies take children. Each line is a yes, no or not published fact from the record linked under it; none of it is a forecast.

  • EU paediatric investigation plan: yes · EMEA-002635-PIP02-21-M02 (repotrectinib, Treatment of all conditions included in the category of malignant neoplasms (except haematopoietic neoplasms)): PM: decision on the application for modification of an agreed PIP, 9 Aug 2023
    Rule: An EMA PIP decision (agreement, modification or waiver) lists the drug as its active substance, exact name. Source: EMA EMEA-002635-PIP02-21-M02, 2026-11-11
  • EU orphan designation: no · No EU orphan designation names repotrectinib
    Rule: An EU orphan designation lists the drug as its active substance (exact name) or belongs to a medicine that does; withdrawn and expired designations are listed with their status. Source: EMA data download (dated snapshot), 2026-11-11
  • Authorised in the EU: yes · Augtyro: authorised since 13 Jan 2025, conditional
    Rule: An EMA medicine record lists the drug as its active substance or INN, exact name; national-only authorisations are not in this file. Source: EMA EPAR Augtyro, 2026-11-11
  • FDA orphan designation: not published · FDA's orphan designation database turns away automated requests, so this app does not read it; search it by hand at the link
    Rule: Would be: an FDA orphan designation names the drug. Source: FDA orphan designations search
  • FDA pediatric oncology approval: yes · Repotrectinib [Augtyro], 13 Jun 2024: Treatment of adult and pediatric patients 12 years of age and older with solid tumors that have a neurotrophic tyrosine receptor kinase (NTRK) gene fusion, are locally advanced or metastatic or where surgical resection is likely to result in severe morbidity, and have progressed following treatment or have no satisfactory alternative therapy
    Rule: FDA's Pediatric Oncology Drug Approvals table names the drug. Source: FDA Pediatric Oncology Drug Approvals (content current as of 2026-03-03), 2026-11-11
  • Registered studies open to children: yes · 3 interventional studies of repotrectinib include patients under 18; 3 are recruiting, not yet recruiting or active
    Rule: The registry's age group includes Child (birth to 17 years), which also counts studies that set no minimum age. Source: ClinicalTrials.gov search, 2026-11-11

Rare pediatric disease voucher. FDA, content current as of 29 Apr 2026: “As of February 3, 2026, enactment of the Consolidated Appropriations Act, 2026, the rare pediatric disease PRV program will sunset after September 30, 2029. FDA may not award any PRVs under this program after September 30, 2029.” Voucher sale prices are not shown here; they appear only as company-reported news. FDA: Rare Pediatric Disease Designation and Priority Review Voucher Programs

All 1 drugs and clinical candidates as a table

Each drug, stage and indication links to its Open Targets record, where the trials and approvals behind it are listed. Salt forms (for example a mesylate) are listed as Open Targets records them, as separate entries.

DrugTypeHighest stageIndicationsSource records
REPOTRECTINIBSmall moleculeapprovalnon-small cell lung carcinoma, cancer, neoplasm, invasive lobular breast carcinoma, anaplastic large cell lymphoma, desmoplastic small round cell tumor, neuroblastomaOpen Targets · ChEMBL