Clinical trial Recruiting at 2 sites Phase 2 Interventional Ages 18 and up

Optimizing treatment selection for advanced colorectal cancer

Official title: OPTIMIzation of Treatment SElection and Follow up in Oligometastatic Colorectal Cancer - a ctDNA Guided Phase II Randomized Approach

Run by Aarhus University Hospital · NCT04680260 · Data updated 2026-11-12

This study tests if using blood tests to check for tumor DNA can help doctors choose better chemotherapy options for people with advanced colorectal cancer after their initial treatment.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment350 (estimated)
SponsorAarhus University Hospital
Academic / other
Drugs / interventionschemotherapy, radiation
Locations2 sites (Aarhus N and 1 other locations)
StatusRecruiting
StartedOctober 25, 2021
Main results expectedMarch 1, 2027
Study endsMarch 1, 2030
Registry record updatedAugust 14, 2024
Trial IDNCT04680260 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with metastatic colorectal cancer who are eligible for radical treatment and adjuvant chemotherapy.

Probably not a fit

Patients with extensive disease requiring cytoreductive surgery or those with significant comorbidities may not benefit from this study.

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

What this trial studies

This study investigates whether analyzing circulating tumor DNA (ctDNA) can improve adjuvant chemotherapy decisions in patients with advanced colorectal cancer. It is an open-label, randomized phase II trial comparing ctDNA-guided treatment to standard of care after local treatment for metastatic colorectal cancer. Patients will be randomized in a 1:1 ratio to receive either standard treatment or ctDNA-guided therapy, which may include escalation or de-escalation of chemotherapy regimens based on ctDNA analysis.

Why it matters

Potential benefit: If successful, this approach could lead to more personalized and effective treatment strategies for patients with advanced colorectal cancer.

How similar studies have gone: Other studies have shown promise in using ctDNA for treatment guidance, indicating potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Radical intended treatment for metastatic spread from CRC, by resection, radiofrequency ablation, stereotactic body radiation therapy (or other experimental local treatment options) not including cytoreductive surgery (CRS) and hyperthermic intra-peritoneal chemotherapy (HIPEC)
* No evidence of further disease based on pre-treatment work-up according to SOC
* Age at least 18 years
* Eastern Cooperative Oncology Group performance status 0-2
* Clinically eligible for adjuvant triple CT at investigators decision.
* Adequate bone marrow, liver and renal function allowing systemic chemotherapy (Absolute neutrophil count ≥1.5x109/l and thrombocytes ≥ 100x109/l. Bilirubin ≤ 1.5 x upper normal value and alanine aminotransferase ≤ 3 x upper normal value, and calculated or measured renal glomerular filtration rate at least 30 mL/min)
* Anticonception for fertile women and for male patients with a fertile partner. Intrauterine device, vasectomy of a female subject's male partner or hormonal contraceptive are acceptable
* Written and verbally informed consent

Exclusion Criteria:

* Radiological evidence of distant metastasis, by CT- chest, abdomen, and pelvis
* Incapacity, frailty, disability and comorbidity to a degree that according to the investigator is not compatible with triple combination chemotherapy
* Neuropathy National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) grade \> 1
* Other malignant tumor within 5 years except non-melanoma skin cancer or carcinoma in situ cervicis uteri
* Pregnant (positive pregnancy test) or breast feeding women
* Intolerance or allergy to 5FU, leucovorin, oxaliplatin, irinotecan or capecitabine

Where it's running

  • Department of Oncology, Aarhus University Hospital
    Aarhus N, Denmark
    Recruiting
  • Department pf Oncology, Vejle Hospital
    Vejle, Denmark
    Recruiting

Study contacts

  • Principal investigator: Karen-Lise G Spindler, Professor — Department of Oncology, Aarhus University Hospital
  • Study coordinator: Karen-Lise G Spindler, Professor
  • Email: k.g.spindler@rm.dk
  • Phone: +4591167244

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

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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.