Registry for patients with sarcoma and carcinosarcoma in Germany

GISAR German Interdisciplinary Sarcoma Registry

Observational Institut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest · NCT04122872

This study is gathering information from patients with sarcoma and carcinosarcoma in Germany to better understand their treatments and improve care for these rare tumors.

Quick facts

Study typeObservational
Enrollment9000 (estimated)
Ages18 Years and up
SexAll
SponsorInstitut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest Academic / other
Locations21 sites (Tübingen, Baden-Wurttemberg and 20 other locations)
Trial IDNCT04122872 on ClinicalTrials.gov

What this trial studies

The GISAR registry aims to collect comprehensive data on patients diagnosed with sarcoma and carcinosarcoma treated in Germany. It employs an open and modular approach, allowing for both prospective and retrospective data collection to address specific scientific questions regarding treatment effectiveness and adverse effects. By including a diverse patient population, the registry seeks to illuminate the current treatment landscape and improve understanding of various sarcoma subtypes and their management. This initiative is crucial given the rarity and complexity of these tumors, which often require multimodal treatment strategies.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with histologically verified bone or soft tissue sarcomas or carcinosarcomas.

Not a fit: Patients with non-histologically verified tumors or those under 18 years old may not benefit from this registry.

Why it matters

Potential benefit: If successful, this registry could enhance treatment strategies and outcomes for patients with sarcoma and carcinosarcoma.

How similar studies have performed: While there have been registries for sarcomas, this specific approach focusing on carcinosarcoma is relatively novel and aims to fill existing knowledge gaps.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histological verified bone or soft tissue sarcomas including bone and soft tissue tumors with borderline histological results or with unclear histological dignity like giant cell tumors of the bone (GCTB), desmoid tumors, atypical lipomatous tumors etc. - independent of therapy form and therapy line - or Histological verified sarcomatoid carcinomas/ carcinosarcomas: tumors with histological, cytological, or molecular properties of both epithelial tumors ("carcinoma") and mesenchymal tumors ("sarcoma") - independent of therapy form and therapy line.
* Signed informed consent form or equivalent (s. chapter 10)
* Age ≥18 years

Exclusion Criteria:

* none

Where this trial is running

Tübingen, Baden-Wurttemberg and 20 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions SarcomaSarcoma,Soft TissueSarcoma of BoneCarcinosarcomaSoft Tissue SarcomaRegistry
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.