Comparing 4 approaches for stage III colon cancer
Official title: Colon Adjuvant Chemotherapy Based on Evaluation of Residual Disease
Interventions
Signatera test
Central ctDNA testing for all patients
mFOLFOX6 3-6 month
Oxaliplatin 85 mg/m2 IV + Leucovorin 400mg/m2 IV + 5-Fluorouracil (5-FU) 400mg/m2 bolus + 5-Fluorouracil (5-FU) 2400mg/m2 IV continuous infusion over 46-48 hours (total dose) Day1 every 2 weeks for 6-12 cycles
CAPOX 3 month
Oxaliplatin 130 mg/m2 IV Day 1 every 3 weeks + Capecitabine 1000 mg/m2 BID by mouth days 1-14 every 3 weeks for 4 cycles
mFOLFIRINOX
Oxaliplatin 85 mg/m2 IV + Leucovorin 400mg/m2 IV + Irinotecan 150 mg/m2 IV continuous infusion (30-90 minutes) + 5-Fluorouracil (5-FU) 2400mg/m2 IV continuous infusion over 46-48 hours (total dose) Day1 every 2 weeks for 12 cycles
mFOLFOX6 6 month
Oxaliplatin 85 mg/m2 IV + Leucovorin 400mg/m2 IV + 5-Fluorouracil (5-FU) 400mg/m2 bolus + 5-Fluorouracil (5-FU) 2400mg/m2 IV continuous infusion over 46-48 hours (total dose) Day1 every 2 weeks for 12 cycles
CAPOX 6 month
Oxaliplatin 130 mg/m2 IV Day 1 every 3 weeks + Capecitabine 1000 mg/m2 BID by mouth days 1-14 every 3 weeks for 8 cycles
Canadian Sites (31)
Arthur J E Child Comprehensive Cancer Centre
Calgary, Alberta, Canada
BCCA-Cancer Centre for the North
Prince George, British Columbia, Canada
BCCA-Vancouver Cancer Centre
Vancouver, British Columbia, Canada
BCCA-Vancouver Island Cancer Centre
Victoria, British Columbia, Canada
Atlantic Health Sciences Corporation-Saint John Regional Hospital
Saint John, New Brunswick, Canada
Doctor H. Bliss Murphy Cancer Centre
St. John's, Newfoundland and Labrador, Canada
Royal Victoria Regional Health Centre
Barrie, Ontario, Canada
Cambridge Memorial Hospital
Cambridge, Ontario, Canada
Juravinski Cancer Centre at Hamilton Health Sciences
Hamilton, Ontario, Canada
Kingston Health Sciences Centre
Kingston, Ontario, Canada
Waterloo Regional Health Network
Kitchener, Ontario, Canada
London Regional Cancer Program
London, Ontario, Canada
Markham Stouffville Hospital
Markham, Ontario, Canada
Stronach Regional Health Centre at Southlake
Newmarket, Ontario, Canada
Lakeridge Health Oshawa
Oshawa, Ontario, Canada
Ottawa Hospital and Cancer Center-General Campus
Ottawa, Ontario, Canada
Niagara Health System-Saint Catharines General
Saint Catharines, Ontario, Canada
North York General Hospital
Toronto, Ontario, Canada
Humber River Hospital
Toronto, Ontario, Canada
Odette Cancer Centre- Sunnybrook Health Sciences Centre
Toronto, Ontario, Canada
Saint Michael's Hospital
Toronto, Ontario, Canada
Windsor Regional Cancer Centre
Windsor, Ontario, Canada
CSSS Champlain-Charles Le Moyne
Greenfield Park, Quebec, Canada
Hotel-Dieu De Levis
Lévis, Quebec, Canada
CIUSSSEMTL-Hopital Maisonneuve-Rosemont
Montreal, Quebec, Canada
Jewish General Hospital
Montreal, Quebec, Canada
Hopital Du Sacre-Coeur de Montreal
Montreal, Quebec, Canada
CHU de Quebec-L'Hotel-Dieu de Quebec (HDQ)
Québec, Quebec, Canada
Centre Hospitalier Universitaire de Sherbrooke-Fleurimont
Sherbrooke, Quebec, Canada
Allan Blair Cancer Centre
Regina, Saskatchewan, Canada
Saskatoon Cancer Centre
Saskatoon, Saskatchewan, Canada
Eligibility Criteria
See who this study is looking for63 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial.
- +Patients must have histologically/pathologically confirmed Stage IIB, IIC, or Stage III colon adenocarcinoma with R0 resection according to AJCC 8th edition criteria.
- +No radiographic evidence of overt metastatic disease within 45 days prior to Step 1/Study entry (CT with IV contrast or MRI imaging is acceptable and must include chest, abdomen, and pelvis).
- +The patient must have had an en bloc complete gross resection of tumor (curative resection). Patients who have had a two-stage surgical procedure, to first provide a decompressive colostomy and then in a later procedure to have the definitive surgical resection, are eligible.
- +Tumor must be documented as microsatellite stable or have intact mismatch repair proteins through CLIA-approved laboratory testing. Patients whose tumors are MSI-H or dMMR are excluded.
- +The treating investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more → must deem the patient a candidate for all potential agents used in this trial (5FU, LV, oxaliplatin and irinotecan).
- +Availability and provision of adequate surgical tumor tissue for molecular diagnostics and confirmatory profiling.
- +Adequate hematologic function within 28 days before Step 1/Study entry defined as follows:
- +Absolute neutrophil count (ANC) must be greater than or equal to 1500/mm3;
- +Participants with benign ethnic neutropenia (BEN): ANC less than 1300 mm3 are eligible.
- +BEN (also known as constitutional neutropenia) is an inherited cause of mild or moderate neutropenia that is not associated with any increased risk for infections or other clinical manifestations. BEN is referred to as ethnic neutropenia because of its increased prevalence in people of African descent and other specific ethnic groups.
- +Platelet count must be greater than or equal to 100,000/mm3; and
- +Hemoglobin must be greater than or equal to 9 g/dL.
- +Adequate hepatic function within 28 days before Step 1/Study entry defined as follows:
- +total bilirubin must be less than or equal to ULN (upper limit of normal) for the lab and
- +alkaline phosphatase must be less than 2.5 x ULN for the lab; and
- +AST and ALT must be less than 2.5 x ULN for the lab.
- +Adequate renal function within 28 days before Step 1/Study entry defined as serum creatinine less than or equal to 1.5 x ULN for the lab or measured or calculated creatinine clearance greater than or equal to 50 mL/min using the Cockroft-Gault formula for patients with creatinine levels greater than 1.5 x ULN for the lab.
- +For Women Creatinine Clearance (mL/min) = (140 - age) x weight (kg) x 0.85 72 x serum creatinine (mg/dL) For Men Creatinine Clearance (mL/min) = (140 - age) x weight (kg) 72 x serum creatinine (mg/dL) NOTE: Adjusted body weight (AdjBW) should be used for patients that have BMI greater than or equal to 28 (less than or equal to 30% above IBW).
- +Patients receiving a coumarin-derivative anticoagulant must agree to weekly monitoring of INR if they are randomizedRandomisedWhich group you go into is decided by chance, not by you or your doctor.Read more → to ArmArmOne of the groups in a study, each receiving something different.Read more → 1 or Arm 3 and receive capecitabine.
- +Eligibility CriteriaEligibility criteriaThe full list of requirements for taking part in a study.Read more → for CohortCohortA group of participants sharing a characteristic, followed together.Read more → A Arm-2 patients on Second Randomization
- +Patient must have developed a ctDNA +ve assay during serial monitoring.
- +Patient's willingness to be re-randomized affirmed.
- +No radiographic evidence of overt metastatic disease.
- +Adequate hematologic function within 28 days before second randomization defined as follows:
- +Absolute neutrophil count (ANC) must be greater than or equal to 1500/mm3;
- +Participants with benign ethnic neutropenia (BEN): ANC less than 1300 mm3 are eligible.
- +BEN (also known as constitutional neutropenia) is an inherited cause of mild or moderate neutropenia that is not associated with any increased risk for infections or other clinical manifestations. BEN is referred to as ethnic neutropenia because of its increased prevalence in people of African descent and other specific ethnic groups.
- +Platelet count must be greater than or equal to 100,000/mm3; and
- +Hemoglobin must be greater than or equal to 9 g/dL.
- +Adequate hepatic function within 28 days before second randomization defined as follows:
- +total bilirubin must be less than or equal to ULN (upper limit of normal) for the lab and
- +alkaline phosphatase must be less than 2.5 x ULN for the lab; and
- +AST and ALT must be less than 2.5 x ULN for the lab.
- +Adequate renal function within 28 days before second randomization defined as serum creatinine less than or equal to 1.5 x ULN for the lab or measured or calculated creatinine clearance greater than or equal to 50 mL/min using the Cockroft-Gault formula for patients with creatinine levels greater than 1.5 x ULN for the lab.
- +For Women Creatinine Clearance (mL/min) = (140 - age) x weight (kg) x 0.85 72 x serum creatinine (mg/dL) For Men Creatinine Clearance (mL/min) = (140 - age) x weight (kg) 72 x serum creatinine (mg/dL)
- +The patient must have an ECOG performance status of 0 or 1.
- +The patient must continue to have an ECOG performance status of 0 or 1.
- +Pregnancy test (urine or serum according to institutional standard) done within 14 days before Step 1/Study entry must be negative (for women of childbearing potential only).
- +Pregnancy test (urine or serum according to institutional standard) done within 14 days before second randomization must be negative (for women of childbearing potential only).
- +The distal extent of the tumor must be greater than or equal to 12 cm from the anal verge on colonoscopy or above the peritoneal reflection as documented during surgery or on pathology specimen (i.e., excluding rectal adenocarcinomas warranting treatment with chemoradiation).
- +The resected tumor specimen and a blood specimen from patients with Stage IIB, IIC, or Stage III colon cancer must have central testing for ctDNA using the Signatera™ assay by Natera (after Step 1/Study entry and before Step2/Randomization). Patient must have sufficient tissue to meet protocolProtocolThe detailed plan a study must follow.Read more → requirements. This blood specimen for the Signatera assay must be collected after surgery (and recommended at least 14 days post surgery).
- +The interval between surgery (post-operative Day 7) and Step 1/Study entry must be no more than 60 days. NOTE: Step 1/Study Entry may occur as early as post operative Day 7, but it cannot occur beyond 60 days from the actual date of the patient's surgery.
Exclusion
- −Colon cancer histology other than adenocarcinoma (i.e., neuroendocrine carcinoma, sarcoma, lymphoma, squamous cell carcinoma, etc.).
- −Pathologic, clinical, or radiologic overt evidence of metastatic disease. This includes isolated, distant, or non-contiguous intra-abdominal metastases, even if resected.
- −Tumor-related bowel perforation.
- −History of prior invasive colon malignancy, regardless of disease-free interval.
- −History of bone marrow or solid organ transplantation (regardless of current immunosuppressive therapy needs). Bone grafts, skin grafts, corneal transplants and organ/tissue donation are not exclusionary.
- −Other invasive malignancy within 5 years before Step 1/Study entry. Exceptions are colonic polyps, non-melanoma skin cancer or any carcinoma-in-situ.
- −Synchronous primary rectal and/ or colon cancers.
- −Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better.
- −Sensory or motor neuropathy greater than or equal to grade 2, according to CTCAE v5.0.
- −Blood transfusion within two weeks before collection of blood for central ctDNA testing.
- −Active seizure disorder uncontrolled by medication.
- −Active or chronic infection requiring systemic therapy.
- −Known homozygous DPD (dihydropyrimidine dehydrogenase) deficiency.
- −Patients known to have Gilbert's Syndrome or homozygosity for UGT1A1\*28 polymorphism.
- −Ineligibility Criteria for CohortCohortA group of participants sharing a characteristic, followed together.Read more → A ArmArmOne of the groups in a study, each receiving something different.Read more →-2 patients on Second RandomizationRandomisedWhich group you go into is decided by chance, not by you or your doctor.Read more →
- −Pregnancy or lactation at the time of Step 1/Study entry.
- −Pregnancy or lactation at the time of randomization.
- −Any prior systemic chemotherapy, targeted therapy, or immunotherapy; or radiation therapy administered as treatment for colorectal cancer (e.g., primary colon adenocarcinomas for which treatment with neoadjuvant chemotherapy and/or radiation is warranted are not permitted). EXCEPTION: one cycle of chemotherapy (regimen per treating physicians' discretion - 5-FU or capecitabine with or without oxaliplatin) is allowed but not required after consentInformed consentThe process of being told what taking part involves, then choosing freely.Read more →. The optional cycle of chemotherapy should be started greater than or equal to 4 weeks from surgery and while awaiting Step 2 randomization.
- −Co-morbid illnesses or other concurrent disease that would make the patient inappropriate for entry into this study (i.e., unable to tolerate 6 months of combination chemotherapy or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens or prevent required follow-upFollow-upContinued check-ins after the treatment part is finished.Read more →).
- −No longer a candidate for systemic chemotherapy (FOLFOX, CAPOX, and mFOLFIRINOX) in the opinion of the treating investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more →.
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 2Phase 2A middle-stage study looking at what a treatment does and watching for side effects.Read more →/3 — a combined study that runs the middle stage and the large comparison stage together.
What is being given or done in this study: Signatera test, mFOLFOX6 3-6 month, CAPOX 3 month, mFOLFIRINOX, and 2 more.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
- armsInterventionsModule.interventions[].name
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment, so the two can be compared.
There are 4 groups in this study.
From the trial registry
Built from this field:
- armsInterventionsModule.armGroups[].type
Who the study is looking for
The study lists a minimum age of 18 years, with no upper limit given.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 1,912 people.
The study is currently expected to finish around March 2030.
The main measurement is taken over: Time from randomizationRandomisedWhich group you go into is decided by chance, not by you or your doctor.Read more → to the first TTPos event, a maximum of 3 years.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
ctDNA positive status (TTPos) — measured over Time from randomizationRandomisedWhich group you go into is decided by chance, not by you or your doctor.Read more → to the first TTPos event, a maximum of 3 years.
Disease-Free Survival (DFS) — measured over Time from randomization to disease-free survival event, a maximum of 5 years].
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT05174169 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About Signatera testDevice
Central ctDNA testing for all patients
From the trial registry — its own words, unedited.
What a device is here: A physical instrument, implant, app or piece of equipment being studied.
Read the full explanation → · in clinical review
About mFOLFOX6 3-6 monthDrug
Oxaliplatin 85 mg/m2 IV + Leucovorin 400mg/m2 IV + 5-Fluorouracil (5-FU) 400mg/m2 bolus + 5-Fluorouracil (5-FU) 2400mg/m2 IV continuous infusion over 46-48 hours (total dose) Day1 every 2 weeks for 6-12 cycles
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About CAPOX 3 monthDrug
Oxaliplatin 130 mg/m2 IV Day 1 every 3 weeks + Capecitabine 1000 mg/m2 BID by mouth days 1-14 every 3 weeks for 4 cycles
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About mFOLFIRINOXDrug
Oxaliplatin 85 mg/m2 IV + Leucovorin 400mg/m2 IV + Irinotecan 150 mg/m2 IV continuous infusion (30-90 minutes) + 5-Fluorouracil (5-FU) 2400mg/m2 IV continuous infusion over 46-48 hours (total dose) Day1 every 2 weeks for 12 cycles
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About mFOLFOX6 6 monthDrug
Oxaliplatin 85 mg/m2 IV + Leucovorin 400mg/m2 IV + 5-Fluorouracil (5-FU) 400mg/m2 bolus + 5-Fluorouracil (5-FU) 2400mg/m2 IV continuous infusion over 46-48 hours (total dose) Day1 every 2 weeks for 12 cycles
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About CAPOX 6 monthDrug
Oxaliplatin 130 mg/m2 IV Day 1 every 3 weeks + Capecitabine 1000 mg/m2 BID by mouth days 1-14 every 3 weeks for 8 cycles
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: a minimum age of 18 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment so the two can be compared.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists a minimum age of 18 years, with no upper limit given.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: Time from randomizationRandomisedWhich group you go into is decided by chance, not by you or your doctor.Read more → to the first TTPos event, a maximum of 3 years.
The study as a whole is currently expected to finish around 2030-03-10.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 1,912 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 139 locations, including: Calgary, Alberta, Canada; Prince George, British Columbia, Canada; Vancouver, British Columbia, Canada; Victoria, British Columbia, Canada; Saint John, New Brunswick, Canada; St. John's, Newfoundland and Labrador, Canada, and 133 more.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
This Phase II/III trial will evaluate the what kind of chemotherapy to recommend to patients based on the presence or absences of circulating tumor DNA (ctDNA) after surgery for colon cancer.
Other Sites (158)
Trinity Health Saint Joseph Mercy Hospital Ann Arbor
Ann Arbor, Michigan, United States
University of Michigan Rogel Cancer Center
Ann Arbor, Michigan, United States
Bronson Battle Creek
Battle Creek, Michigan, United States
Trinity Health IHA Medical Group Hematology Oncology - Brighton
Brighton, Michigan, United States
Trinity Health Medical Center - Brighton
Brighton, Michigan, United States
Trinity Health IHA Medical Group Hematology Oncology - Canton
Canton, Michigan, United States
Trinity Health Medical Center - Canton
Canton, Michigan, United States
Caro Cancer Center
Caro, Michigan, United States
Chelsea Hospital
Chelsea, Michigan, United States
Trinity Health IHA Medical Group Hematology Oncology - Chelsea Hospital
Chelsea, Michigan, United States
Hematology Oncology Consultants-Clarkston
Clarkston, Michigan, United States
Newland Medical Associates-Clarkston
Clarkston, Michigan, United States
Corewell Health Dearborn Hospital
Dearborn, Michigan, United States
Henry Ford Health Saint John Hospital
Detroit, Michigan, United States
Henry Ford River District Hospital
East China Township, Michigan, United States
OSF Saint Francis Hospital and Medical Group
Escanaba, Michigan, United States
Cancer Hematology Centers - Flint
Flint, Michigan, United States
Genesee Hematology Oncology PC
Flint, Michigan, United States
Genesys Hurley Cancer Institute
Flint, Michigan, United States
Hurley Medical Center
Flint, Michigan, United States
And 138 more sites worldwide.
Worth passing on?
Save it to the Care Package and send it to them, or to their doctor, in one message. Whether they follow it up is theirs to decide.
Review the Care PackageThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.