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ctDNA-guided Surveillance for Stage III CRC, a Randomized Intervention Trial

Implementing Non-invasive Circulating Tumor DNA Analysis to Optimize the Operative and Postoperative Treatment for Patients With Colorectal Cancer - Intervention Trial 2

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04084249
Enrollment
359
Registered
2019-09-10
Start date
2020-01-01
Completion date
2028-06-30
Last updated
2026-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colonic Cancer, Colonic Diseases, Colonic Neoplasms, Colo-rectal Cancer, Colorectal Cancer, Colorectal Neoplasms, ctDNA, Digestive System Disease, Digestive System Neoplasm, Gastrointestinal Cancer, Gastro-Intestinal Disorder, Gastrointestinal Neoplasms, Rectal Cancer, Rectal Diseases, Rectal Neoplasms

Brief summary

IMPROVE-IT2 is a randomized multicenter trial comparing the outcomes of ctDNA guided post-operative surveillance and standard-of-care CT-scan surveillance. The hypothesis of this study is that ctDNA guided post-operative surveillance combining ctDNA and radiological assessments could result in earlier detection of recurrent disease and identify more patients eligible for curative treatment.

Interventions

DIAGNOSTIC_TESTctDNA-analysis

Minimally-invasive blood-based analysis of circulating tumor DNA (ctDNA).

PET/CT-scans every 3. month

Sponsors

Claus Lindbjerg Andersen
Lead SponsorOTHER
University of Aarhus
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Colon or rectal cancer, tumor stage III (pT1-4N1-2,cM0) or stage II high-risk (pT4N0,cM0 and pT3N0, cM0 with risk factors) * Have received curative intend resection and be candidates for adjuvant chemotherapy

Exclusion criteria

* Not treated with adjuvant chemotherapy * Synchronous colorectal and non-colorectal cancer diagnosed per-operative (except skin cancer other than melanoma) * Other cancers (excluding colorectal cancer or skin cancer other than melanoma) within 3 years from screening * Patients who are unlikely to comply with the protocol (e.g. uncooperative attitude), inability to return for subsequent visits) and/or otherwise considered by the Investigator to be unlikely to complete the study.

Design outcomes

Primary

MeasureTime frameDescription
FCI5 yearsFraction of patients with relapse receiving intended curative resection or local treatment aiming at complete tumor destruction as defined at the relevant MDT conference.

Secondary

MeasureTime frameDescription
TTCR3 yearsTime to clinical recurrence
3yr-OS3 yearsOverall survival at 3 years
5yr-OS5 yearsOverall survival at 5 years
QoL3 yearsQuality of Life by use of EORTC QLQ-C30, version 3.0. The QoL outcome measure is differences in QLQ-C30 score at 12, 24 and 36 months between the experimental and control arm.
CE5 yearsCost-effectiveness. QoL/Utility weights for the quality-adjusted life years parameter will be QLU-C10D based on EORTC QLQ-C30.
AR3 yearsAdherence rate for patients following ctDNA-guided and standard of care surveillance
TTMR2 yearsTime to molecular recurrence
FCRI3 yearsFear of Cancer Recurrence Inventory. The FCRI outcome measure is differences in FCRI at 12, 24 and 36 months between the experimental and control arm.
IES-C3 yearsImpact of Events Scale Cancer. The IES-C outcome measure is differences in IES-C at 12, 24 and 36 months between the experimental and control arm.

Countries

Denmark

Contacts

PRINCIPAL_INVESTIGATORClaus L Andersen, PhD

Department of Molecular Medicin, Aarhus University Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 30, 2026