Clinical trial Recruiting at 21 sites Observational Ages 18 and up

Registry for patients with sarcoma and carcinosarcoma in Germany

Official title: GISAR German Interdisciplinary Sarcoma Registry

Run by Institut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest · NCT04122872 · Data updated 2026-11-12

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
Ages18 Years and up
SexAll
Enrollment9000 (estimated)
SponsorInstitut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest
Academic / other
Locations21 sites (Tübingen, Baden-Wurttemberg and 20 other locations)
StatusRecruiting
StartedNovember 29, 2018
Main results expectedJanuary 2038
Study endsJanuary 2038
Registry record updatedFebruary 5, 2026
Trial IDNCT04122872 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

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

Probably not a fit

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

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

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.

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

Who can join: the full rules

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 it's running

  • Universitätsklinikum Tübingen
    Tübingen, Baden-Wurttemberg, Germany
    Recruiting
  • Universitätsklinikum Erlangen
    Erlangen, Bavaria, Germany
    Recruiting
  • HELIOS Klinikum Bad Saarow
    Bad Saarow, Germany
    Recruiting
  • HELIOS Klinikum Berlin-Buch
    Berlin, Germany
    Recruiting
  • Vivantes Klinikum Berlin-Spandau
    Berlin-Spandau, Germany
    Recruiting
  • Universitätsklinikum Erlangen
    Erlangen, Germany
    Recruiting
Show 15 more locations
  • Klinikum Frankfurt Höchst
    Frankfurt, Germany
    Recruiting
  • Krankenhaus Nordwest KHNW
    Frankfurt, Germany
    Recruiting
  • Uniklinik Freiburg
    Freiburg im Breisgau, Germany
    Recruiting
  • Universitätsmedizin Göttingen
    Göttingen, Germany
    Recruiting
  • Universitätsmedizin Greifswald
    Greifswald, Germany
    Recruiting
  • University Hospital Halle (Saale)
    Halle, Germany
    Recruiting
  • Asklepios Klinik St. Georg
    Hamburg, Germany
    Recruiting
  • Uniklinikum Leipzig
    Leipzig, Germany
    Recruiting
  • Universitätsmedizin Mainz
    Mainz, Germany
    Recruiting
  • Chirurgische Universitätsklinik Mannheim
    Mannheim, Germany
    Recruiting
  • Westfälische Wilhelms-Universität Münster
    Münster, Germany
    Recruiting
  • Klinikum Nürnberg
    Nuremberg, Germany
    Recruiting
  • Barmherzige Brüder Regensburg
    Regensburg, Germany
    Recruiting
  • Uniklinikum Regensburg
    Regensburg, Germany
    Recruiting
  • Universitätsklinikum Würzburg
    Würzburg, Germany
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.