A Study of Dabrafenib Plus Cetuximab/Panitumumab With FOLFOX in the First Line of Therapy in People With Metastatic Colorectal Cancer

Phase 2

Recruiting

• Conditions: Neoplasms
• Interventions: Drug: mFOLFOX6 + dabrafenib and cetuximab or panitumumab in the first line of therapy

• Registration Number: NCT06978400
• Lead Sponsor: Blokhin's Russian Cancer Research Center

Brief Summary

The purpose of this study is to evaluate the efficacy and toxicity of FOLFOX regimen with dabrafenib and cetuximab/panitumumab in the first line of therapy for the potential treatment of colorectal cancer that: has a metastatic, inoperable; has a mutation in the BRAF gene and MSS.

Participants in this study will receive one of the following study treatments:

These participants will receive FOLFOX regimen with dabrafenib and cetuximab or panitumumab in the first line of therapy This study is currently enrolling participants who will receive either FOLFOX regimen with dabrafenib and cetuximab or panitumumab in the first line of therapy.

The study team will monitor how each participant responds to the study treatment for up to about 3 years.

Detailed Description

The purpose of the study is to evaluate the efficacy and toxicity of first-line FOLFOX with dabrafenib and cetuximab or panitumumab in patients with previously untreated metastatic inoperable colorectal cancer who have MSS and BRAF mutation.

Study Timeline

• Study Start: 2025-03-01
• Status Verified: 2025-05
• Study First Submitted: 2025-05-03
• Study First Submitted QC: 2025-05-11
• Last Update Submitted: 2025-05-11
• Study First Posted: 2025-05-18
• Last Update Posted: 2025-05-18
• Primary Completion: 2027-11-10
• Study Completion: 2028-07-10

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 64

Inclusion Criteria

• Histologically confirmed colorectal adenocarcinoma that contains MSS and BRAF V600E mutation
• Metastatic inoperable colorectal cancer
• Adequate function of hematopoiesis and basic indicators of internal organs
• Has measurable or evaluable disease according to Response Evaluation Criteria In Solid Tumors (RECIST v1.1).
• Lacking antitumor systemic treatment for colorectal cancer.
• Patients with progression after adjuvant chemotherapy may be included if progression is recorded no earlier than 12 months after the last course of chemotherapy.
• The primary tumor is removed or asymptomatic.
• Absence of grade 2 or higher neuropathy.
• Absence of tumor MSI or dMMR.
• ECOG PS 0-2

Exclusion Criteria

• Participants having more than 2 lines of treatment (a progression of disease within 12 months of the completion of adjuvant and/or perioperative chemotherapy with oxaliplatin and fluoropyrimidines is acceptable).
• Presence of any other malignancy, except radically treated basal cell carcinoma, cervical cancer in situ, currently or within 5 years prior to enrolment.
• Pregnant and breastfeeding women.
• Male and female patients with preserved reproductive potential who refused to use adequate contraception throughout the study.
• HIV-infected patients.
• Patients with a life expectancy of less than 3 months.
• The presence of a disease or condition that, in the opinion of the investigator, prevents the patient from participating in the trial.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
mFOLFOX6 + dabrafenib and cetuximab or panitumumab in the first line of therapy	mFOLFOX6 + dabrafenib and cetuximab or panitumumab in the first line of therapy	mFOLFOX6 + dabrafenib and cetuximab or panitumumab in the first line of therapy Dabrafenib 150 mg twice orally daily Cetuximab 500 mg/m2 (120-minute IV infusion) every two weeks or Panitumumab 6 mg/kg (60-minute IV infusion) every two weeks Oxaliplatin 85 mg/m2 (120-minute IV infusion) every two weeks, Сalcium folinate 400 mg/m2 (120-minute IV infusion) every two weeks 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours every two weeks. In the first-line setting, 8 courses are administered, and if disease control is achieved, dabrafenib, cetuximab or panitumumab therapy is continued until disease progression or intolerable toxicity.

Primary Outcome Measures

Name	Time	Method
Objective Response Rate	assessed at 8 and 16 weeks	From date of enrollment until the date of first documented objective response

Secondary Outcome Measures

Name	Time	Method
Progression-free survival	assessed up to 24 months	From date of enrollment until the date of first documented progression or date of death from any cause, whichever came first
Time to objective response	assessed up to 12 months	Time from start of treatment to objective response to treatment
Overall survival	assessed up to 36 months	From the time of enrolment until the death from any cause

Trial Locations

Locations (1)

Blokhin's Russian Cancer Research Center; 🇷🇺 Moscow, Russian Federation