Observational study on rare gastrointestinal cancers and targeted treatments

Rare Subtypes of Gastrointestinal Cancers - Real-world Data and Liquid Biopsies

Aarhus University Hospital · NCT04838327

This study is testing how certain blood markers in patients with rare gastrointestinal cancers can help us understand how well targeted treatments are working for them.

Quick facts

Study typeObservational
Enrollment130 (estimated)
Ages18 Years and up
SexAll
SponsorAarhus University Hospital (other)
Drugs / interventionschemotherapy
Locations1 site (Aarhus N)
Trial IDNCT04838327 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the biological aspects of patients with rare subtypes of gastrointestinal cancers who are receiving targeted treatments. Participants will have blood samples collected at various points during their treatment to analyze cell-free DNA and identify tumor-specific mutations, as well as immune-related biomarkers. The study will include up to 130 patients and will correlate biological findings with treatment outcomes. The approach focuses on understanding how these biomarkers relate to the effectiveness of standard care treatments.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older diagnosed with rare subtypes of gastrointestinal cancer, such as those with specific mutations like BRAF V600E.

Not a fit: Patients with conditions that prevent blood sampling or those with another concomitant cancer may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of rare gastrointestinal cancers and improve targeted treatment strategies for patients.

How similar studies have performed: While there have been studies on gastrointestinal cancers, this specific focus on rare subtypes and their biomarkers is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of a rare subtype of GI cancer including BRAF V600E mutation, MSI-H, HER2 and others
* Diagnosis of cancer of the gastrointestinal tract may be made by histo- or cyto-pathology, or by clinical and imaging criteria
* Planned for targeted treatment
* Age 18 years or older
* Able to understand written information
* Consent to samples for translational research

Exclusion Criteria:

* Conditions precluding translational blood sampling
* Another concomitant cancer

Where this trial is running

Aarhus N

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.

View on ClinicalTrials.gov →

Conditions: Cancer of Gastrointestinal Tract

Last reviewed 2026-05-15 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.