About this trial
This research study is comparing two standard of care treatment options based on blood test results for participants who have metastatic colon cancer.
The names of the potential treatments involved in this study are:
* Active surveillance * FOLFIRI treatment * Nivolumab treatment * Encorafenib/Binimetinib/Cetuximab treatment * Trastuzumab + Pertuzumab
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Participants must have histologically confirmed resected Stage III adenocarcinoma of the colon. Any T [Tx, T1, T2, T3, or T4-], N1-2M0.
Participants must have completely resected disease. In patients with tumor adherent to adjacent structures, en block RO resection must be documented.
Entire tumor must be in the colon (rectal involvement is excluded).
Participants must have completed standard adjuvant chemotherapy per the discretion of the treating physician. Standard therapy includes FOLFOX, CAPOX, or therapy with 5FU analog alone will be permitted if it constitutes appropriate standard therapy in the opinion of the treating physician.
Disqualifiers
Patients who are receiving additional investigational therapy or on another investigational protocol
Patients who have confirmed metastatic disease per CT.
Patients who are unable to get any standard adjuvant therapy
Patients who have received more than 6 months of standard adjuvant therapy at the time of study entry.
Trial design
Parallel
Treatments tested in this trial
FOLFIRI Protocol
DrugFOLFIRI cycle will be two weeks (14 days) long, with FOLFIRI administered on Days 1-3. Participants will receive up to 12 two-week cycles (for a total of 24 weeks) of FOLFIRI chemotherapy.
ACTIVE SURVEILLANCE
Other interventionWill be followed with observation and monitoring with imaging, tumor markers, and ctDNA collections
Nivolumab Protocol
DrugNivolumab cycle will be four weeks (28 days) long, with Nivolumab administered on day 1. Participants will receive up to 12 four-week cycles (for a total of 48 weeks) of Nivolumab treatment.
Encorafenib/Binimetinib/Cetuximab Protocol
DrugEncorafenib/Binimetinib will be taken orally every day and Cetuximab will be administered intravenously on day 1 of each cycle. Cycles are 14 days long. Participants will receive up to 12 two-week cycles (for a total of 24 weeks) of Encorafenib/Binimetinib/Cetuximab.
Trastuzumab + Pertuzumab
DrugTrastuzumab (Herceptin) is received by intravenous administration and Pertuzumab is received intravenously by infusion on Day 1 of each cycle. Cycles are 21 days long. Participants will receive up to 8 cycles of Trastuzumab and Pertuzumab.
Treatment groups
6
Treatment groupsSee each treatment group below.
Trial outcomes
Primary outcomes
Disease-free survival (DFS)
Disease-free survival (DFS) between ctDNA-positive patients treated with additional treatment of FOLFIRI and ctDNA-positive patients who are untreated
Clearance rate of ctDNA
Compare the clearance rate of ctDNA in ctDNA-positive patients between patients treated with additional treatment of FOLFIRI and those who are untreated
Secondary outcomes
Overall Survival (OS) Rate
Overall survival (OS) between ctDNA-positive patients treated with additional adjuvant therapy (Arm 1) and ctDNA-positive patients who are untreated (Arm 2)
Clearance rate of ctDNA of Arm 4: Nivolumab Treatment
Determine clearance rate of ctDNA-positive patients treated with nivolumab in an exploratory MSI/mismatch repair deficient cohort
Disease-free survival (DFS) of Arm 4: Nivolumab Treatment
Determine the disease-free survival (DFS) of ctDNA-positive patients treated with nivolumab in an exploratory MSI/mismatch repair deficient cohort
Clearance rate of ctDNA of Arm 5: Encorafenib/Binimetinib/Cetuximab Treatment
Determine the clearance rate of ctDNA-positive patients treated with encorafenib, binimetinib, and cetuximab in an exploratory BRAF V600E cohort.
Sponsors and contacts
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Massachusetts General Hospital
Lead sponsor
Stand Up To Cancer
Collaborator