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New study aims to improve surgery decisions for rare sarcoma patients

NCT ID NCT06943612

Knowledge-focused Sponsor: Heidelberg University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jul 24, 2026 · Updated 3 times

Summary

This study follows 120 adults with retroperitoneal sarcoma who need surgery that also removes part of the colon or rectum. Researchers will compare different surgical techniques and track complications and quality of life using surveys. The goal is to provide better guidance for surgeons on how to perform these complex operations.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
surgical procedure (colorectal resection and reconstruction)
What this could lead to
If successful, this study could help surgeons choose the best surgical approach for patients with retroperitoneal sarcoma, potentially improving recovery and quality of life.
What could go wrong
This is an observational study, not a treatment trial. It will not test a new drug or therapy, so it cannot directly lead to a cure or new treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 120 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2025

Expected to finish

Nov 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients with primary, retroperitoneal sarcomas who underwent surgery with colorectal resection at DKG-certified sarcoma centers or hospitals in Germany and Switzerland that meet certification-equivalent criteria.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Histological confirmation with evidence of a retroperitoneal sarcoma * Tumor resection with colorectal resection * Surgery in a DKG-certified sarcoma center or hospital that meets certification-equivalent criteria * Age 18 years or older * Written consent Exclusion Criteria: * Absence of consent

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Conditions

The condition(s) this trial relates to.

retroperitoneal sarcoma sarcoma soft tissue sarcoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Retroperitoneal sarcoma Sarcoma,soft tissue

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    16 sites in 2 countries. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Heidelberg University Hospital

    RECRUITING

    Heidelberg, Germany

  • Helios Hospital Berlin-Buch

    RECRUITING

    Berlin, Germany

  • LMU Hospital

    RECRUITING

    München, Germany

  • Medical University of Hannover

    RECRUITING

    Hanover, Germany

  • Sarcoma Center University of Basel

    RECRUITING

    Basel, Switzerland

  • Sarcoma Center of University Medical Center Mannheim

    RECRUITING

    Mannheim, Baden-Wurttemberg, 68167, Germany

  • University Hospital Koeln

    RECRUITING

    Cologne, Germany

  • University Hospital Magdeburg

    RECRUITING

    Magdeburg, Germany

  • University Medical Center Dresden

    RECRUITING

    Dresden, Germany

  • University Medical Center Erlangen

    RECRUITING

    Erlangen, Germany

  • University Medical Center Goettingen

    RECRUITING

    Göttingen, Deutschland, 37075, Germany

  • University Medical Center Greifswald

    RECRUITING

    Greifswald, Germany

  • University Medical Center Halle

    RECRUITING

    Halle, Germany

  • University Medical Center Hamburg-Eppendorf

    RECRUITING

    Hamburg, Germany

  • University Medical Center Tübingen

    RECRUITING

    Tübingen, Germany

  • University Medical Center Ulm

    RECRUITING

    Ulm, Germany

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Other studies related to the condition(s) this trial covers.