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A Study of On-treatment ctDNA Changes in Chemo-refractory Colorectal Cancer Patients

A Study of On-treatment ctDNA Changes in Chemo-refractory Colorectal Cancer Patients

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05487248
Acronym
COPERNIC
Enrollment
103
Registered
2022-08-04
Start date
2023-10-12
Completion date
2026-08-24
Last updated
2026-08-25

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

Conditions

Candidate for Third-line or Subsequent Lines of Therapy, Metastatic Colorectal Cancer, Unresectable Locally Advanced Colorectal Cancer

Keywords

colorectal cancer

Brief summary

COPERNIC is an international, multicentre, single-arm study. Chemo-refractory mCRC subjects who meet all eligibility criteria will be treated with standard systemic chemotherapy (the decision about the treatment regimen being made by the treating physician) and undergo tumour assessment by standard imaging (either CT scan or MRI scan) at baseline and every 8 or 12 weeks until evidence of tumour progression. Response to treatment will be assessed by the local investigators according to the RECIST criteria version 1.1. Blinded, independent central review of the imaging scan will be carried out, this having no impact on treatment decisions thatwhich will remain the prerogative of the treating physician. Serial blood samples from study subjects will be collected at pre-defined time points for ctDNA testing. Also, archived tumour tissue from each subject will be collected. Prospective and retrospective ctDNA analyses on blood samples will be carried out, and dynamics of ctDNA will be correlated with treatment outcomes prognosis.

Detailed description

COPERNIC is an international, multicentre, single-arm study. Chemo-refractory mCRC subjects who meet all eligibility criteria will be treated with standard systemic chemotherapy (the decision about the treatment regimen being made by the treating physician) and undergo tumour assessment by standard imaging (either CT scan or MRI scan) at baseline and every 8 or 12 weeks until evidence of tumour progression. Response to treatment will be assessed by the local investigators according to the RECIST criteria version 1.1. Blinded, independent central review of the imaging scan will be carried out, this having no impact on treatment decisions which will remain the prerogative of the treating physician. Serial blood samples from study subjects will be collected at pre-defined time points for ctDNA testing. Also, archived tumour tissue from each subject will be collected. Prospective and retrospective ctDNA analyses on blood samples will be carried out, and dynamics of ctDNA will be correlated with prognosis. Two ctDNA assays will be used in this study: * FoundationOne Liquid CDx (F1LCDx) for comprehensive genomic profile (CGP) assessment * F1Monitor for monitoring purpose For subjects receiving treatments with a 2- or 4-weekly schedule, blood and plasma samples for ctDNA testing will be collected at the following timepoints: Blood : * Before treatment start (day 1) * 2 weeks after treatment start (day 15) Plasma : * Before the treatment start (day 1) * 4 weeks after treatment start (day 29) * 8 or 12 weeks after treatment start and every 8 or 12 weeks thereafter (i.e. at the same time of each imaging tumour assessment) until evidence of progressive disease by RECIST 1.1 For subjects receiving treatments with a 3-weekly schedule, blood and plasma samples for ctDNA testing will be collected at the following timepoints: Blood : * Before treatment start (day 1) * 3 weeks after treatment start (day 22) Plasma : * Before treatment start (day 1) * 6 weeks after treatment start (day 43) * 8 or 12 weeks after treatment start and every 8 or 12 weeks thereafter (i.e. at the same time of each imaging tumour assessment) until evidence of progressive disease by RECIST 1.1 ctDNA analyses will be done in a centralised laboratory (Foundation Medicine Inc). Full report of the ctDNA analysis will be provided to the study team to allow correlation with clinical data and exploratory analyses. The results of the ctDNA analysis will not be communicated to the treating physician (with the only exception of the analysis by F1CDx on tumour tissue at screening) and therefore will not have any impact on treatment decision (i.e., all study subjects will be treated according to standard practice).

Interventions

OTHERBlood Sample Collection

For subjects receiving treatments with a 2- or 4-weekly schedule, samples for ctDNA testing will be collected at the following timepoints: Blood : * Before treatment start (day 1) * 2 weeks after treatment start (day 15) Plasma : * Before the treatment start (day 1) * 4 weeks after treatment start (day 29) * 8 or 12 weeks after treatment start and every 8 or 12 weeks thereafter (i.e. at the same time of each imaging tumour assessment) until evidence of progressive disease by RECIST 1.1 For subjects receiving treatments with a 3-weekly schedule, samples for ctDNA testing will be collected at the following timepoints: Blood : * Before treatment start (day 1) * 3 weeks after treatment start (day 22) Plasma : * Before treatment start (day 1) * 6 weeks after treatment start (day 43) * 8 or 12 weeks after treatment start and every 8 or 12 weeks thereafter (i.e. at the same time of each imaging tumour assessment) until evidence of progressive disease by RECIST 1.1

Sponsors

Jules Bordet Institute
Lead SponsorOTHER
Hoffmann-La Roche
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

1. Age ≥ 18 years old 2. Male or female 3. ECOG performance status ≤2 4. Must have histologically or cytologically verified colorectal cancer adenocarcinoma 5. Inoperable locally advanced or metastatic disease 6. Presence of measurable disease (by RECIST criteria version 1.1) on baseline CT scan of the thorax/abdomen/pelvis or CT scan of the thorax and MRI of the abdomen/pelvis 7. At least two prior systemic treatments for advanced/metastatic colorectal cancer including oxaliplatin and irinotecan-based therapy (adjuvant or neoadjuvant systemic chemotherapy will be considered if tumour progression was documented within 6 month of the last chemotherapy dose) 8. Candidate for standard third-line or subsequent lines of therapy as per decision of the treating physician 9. Life expectancy of at least 3 months 10. Women of childbearing potential must have a negative serum pregnancy test done within 28 days prior to enrolment. 11. Effective contraception is in place for women of childbearing potential. 12. Completion of all necessary screening procedures within 28 days prior to enrolment. 13. Availability of archived tumour tissue 14. Signed Informed Consent form (ICF) obtained prior to any study related procedure. Inclusion criterion applicable to FRANCE only 15. Affiliated to the French Social Security System

Exclusion criteria

1. Tumours other than colorectal cancer 2. Histologies other than adenocarcinoma 3. Any baseline medical condition that would contraindicate the use of systemic chemotherapy or may preclude the regular administration of the same 4. Any psychiatric condition that would prohibit the understanding or rendering of informed consent 5. Other invasive malignancy within 3 years except for non-invasive malignancies such as cervical carcinoma in situ, non-melanomatous carcinoma of the skin or ductal carcinoma in situ of the breast that has/have been surgically cured 6. Subject with a significant medical, neuro-psychiatric, or surgical condition, currently uncontrolled by treatment, which, in the principal investigator's opinion, may interfere with completion of the study. 7. Pregnant and/ or lactating women Exclusion criterion applicable to FRANCE only 8. Vulnerable persons according to the article L.1121-6 of the Public Health Code, adults who are the subject of a measure of legal protection or unable to express their consent according to article L.1121-8 of the Public Health Code.

Design outcomes

Primary

MeasureTime frameDescription
Optimal timepoint and cut-off value for early on-treatment ctDNA changesat 2 or 3 weeksTo select the optimal timepoint and cut-off value for early on-treatment ctDNA changes (as assessed by F1Monitor) that predict progressive disease as best radiological response with a high degree of specificity.

Secondary

MeasureTime frameDescription
optimal timepoint and cut-off value for on-treatment ctDNA changes at 4 or 6 weeksDay 29 or 43To select the optimal timepoint and cut-off value for on-treatment ctDNA changes at 4 or 6 weeks (as assessed by F1Monitor) that predict progressive disease as best radiological response with a high degree of specificity.
rapid turnaround time of ctDNA testing based on F1LCDxthrough study completion, an average of 1 yearTo demonstrate rapid turnaround time of ctDNA testing based on F1LCDx and identify technical or logistical challenges to the implementation of an on-treatment ctDNA-driven treatment approach in a follow-on study.
tumour heterogeneityDay 1To evaluate tumour heterogeneity before treatment start as assessed by F1CDx in the tumour tissue and F1LCDx in the whole blood.
CGP changes during treatmentDay 1 and 15 or D1 and D22To track CGP changes during treatment as assessed by F1LCDx.

Countries

Belgium, France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 26, 2026