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A Study of Irinotecan With Dabrafenib Plus Trametinib and Anti-EGFR in the Second Line of Therapy in People With Metastatic Colorectal Cancer

Non-randomised, Multicentre, Prospective, Single-arm, Phase II Study of the Efficacy and Toxicity of a Combination of Irinotecan With Dabrafenib and Trametinib, Anti-EGFR in the Second Line of Treatment of Patients With Metastatic BRAF V600E- Mutated Colorectal Cancer.

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06967155
Enrollment
23
Registered
2025-05-13
Start date
2025-03-01
Completion date
2028-06-10
Last updated
2025-10-02

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

Conditions

Neoplasms

Keywords

metastatic colorectal cancer, BRAF V600E- mutated, treatment

Brief summary

The purpose of this study is to evaluate the efficacy and toxicity of irinotecan with dabrafenib, cetuximab/panitumumab in the second line of treatment for the potential treatment of colorectal cancer that: has a metastatic, inoperable; has a mutation in the BRAF gene. Participants in this study will receive one of the following study treatments: These participants will receive in the second line is irinotecan, dabrafenib + trametinib, cetuximab or panitumumab. This trial is currently enrolling participants who will receive either irinotecan and dabrafenib plus cetuximab or panitumumab in the second 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 irinotecan in combination with dabrafenib + trametinib and cetuximab or panitumumab in second-line treatment of patients with metastatic inoperable colorectal cancer who have a BRAF mutation.

Interventions

DRUG• Drug: Dabrafenib • Drug: Trametinib • Drug: Cetuximab • Drug: Рanitumumab • Drug: Oxaliplatin • Drug: Irinotecan • Drug: Leucovorin • Drug: 5-FU

Irinotecan + Dabrafenib + Trametinib and Cetuximab or Panitumumab in the second line of therapy Dabrafenib 150 mg twice orally daily Trametinib 2 mg orally once daily Cetuximab 500 mg/m2 (120-minute IV infusion) every two weeks or Panitumumab 6 mg/kg (60-minute IV infusion) every two weeks Irinotecan 90 mg/m2 (90-minute IV infusion) weekly. Second-line treatment is administered until disease progression or intolerable toxicity. It may be possible to switch to a regimen of dabrafenib, trametinib, cetuximab or panitumumab if irinotecan is intolerable.

Sponsors

City Clinical Oncology Hospital No 1
CollaboratorOTHER_GOV
Moscow City Oncology Hospital No. 62
CollaboratorOTHER_GOV
The Loginov MCSC MHD
CollaboratorUNKNOWN
MMCC Kommunarka MHD
CollaboratorUNKNOWN
Blokhin's Russian Cancer Research Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

* Drug: Dabrafenib * Drug: Trametinib * Drug: Cetuximab * Drug: Рanitumumab * Drug: Oxaliplatin * Drug: Irinotecan * Drug: Leucovorin * Drug: 5-FU

Eligibility

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

Inclusion criteria

1. Histologically confirmed metastatic inoperable colorectal adenocarcinoma 2. The tumour has a BRAF mutation 3. Adequate function of hematopoiesis and basic indicators of internal organs 4. Has measurable or evaluable disease according to Response Evaluation Criteria In Solid Tumors (RECIST v1.1). 5. Absence of grade 2 or higher toxicity from previous line of treatment. 6. It is possible to include patients with MSI or dMMR if they have received first-line immune checkpoint therapy. 7. ECOG PS 0-1

Exclusion criteria

1. 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). 2. Presence of any other malignancy, except radically treated basal cell carcinoma, cervical cancer in situ, currently or within 5 years prior to enrolment. 3. Pregnant and breastfeeding women. 4. Male and female patients with preserved reproductive potential who refused to use adequate contraception throughout the study. 5. HIV-infected patients. 6. Patients with a life expectancy of less than 3 months. 7. The presence of a disease or condition that, in the opinion of the investigator, prevents the patient from participating in the trial.

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rateassessed up to 12 monthsFrom date of enrollment until the date of first documented progression

Secondary

MeasureTime frameDescription
Time to objective responseassessed up to 6 monthsTime from start of treatment to objective response to treatment
Duration of responseassessed up to 12 monthsCalculated from achieving objective response to progression or death from any cause
Disease control ratePercentage of patients who achieved a complete response, partial response or disease stabilisation? through study completion, an average of 1 year
Progression-free survivalassessed up to 24 monthsFrom date of enrollment until the date of first documented progression or date of death from any cause, whichever came first
Incidence of adverse eventsProportion of patients with adverse events out of all patients (NCI CTCAE 5.0)
Incidence of adverse events grade 3-4Proportion of patients with adverse events grade 3-4 out of all patients (NCI CTCAE 5.0)
Reduction of dose reductions and drug withdrawalsProportion of patients with dose reductions and drug withdrawals in the total number of patients
Overall survivalassessed up to 36 monthsFrom the time of enrolment until the death from any cause

Countries

Russia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026