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CAPRI 2 GOIM Study: Investigate the Efficacy and Safety of a Bio-marker Driven Cetuximab-based Treatment Regimen

CAPRI 2 GOIM Study: Investigate the Efficacy and Safety of a Bio- Marker-driven Cetuximab-based Treatment Regimen Over 3 Treatment Lines in mCRC Patients With RAS/BRAF wt Tumors at Start of First Line

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05312398
Enrollment
219
Registered
2022-04-05
Start date
2021-07-15
Completion date
2026-08-15
Last updated
2025-05-25

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

Conditions

Metastatic Colorectal Adenocarcinoma

Brief summary

This clinical program aims to evaluate the activity and efficacy of cetuximab continuation of treatment for three lines of therapy with rotation of chemotherapy (FOLFIRI, FOLFOX, irinotecan) in mCRC patients, whose tumors remain RAS/BRAF WT. The study will also evaluate the activity and efficacy of cetuximab re-introduction in combination with irinotecan as third line therapy in the concept of re-challenge for those patients that will be treated in second line with chemotherapy plus anti-angiogenic drugs (FOLFOX plus bevacizumab), having a RAS or BRAF mutant disease at the time of progression after FOLFIRI plus cetuximab first line treatment. A novel characteristic of this program is that the therapeutic algorithm will be defined at each treatment decision (first line, second line and third line) in a prospective fashion in each patient by liquid biopsy assessment of RAS/BRAF status.

Detailed description

Based on dynamic and longitudinal liquid biopsy assessment of RAS/BRAF status, that will be prospectively performed before each line of treatment, mCRC patients will be treated with cetuximab in combination with chemotherapy throughout three lines of therapy, as follows: FOLFIRI plus cetuximab (first line); FOLFOX plus cetuximab (second line); irinotecan plus cetuximab (third line) in case of RAS/BRAF WT at each time point of progression. If at progression after the first line, the liquid biopsy assessment indicates RAS and or BRAF mutant status, patients will be treated with FOLFOX plus bevacizumab as the second line of therapy. If at progression after the second line, the liquid biopsy assessment indicates RAS and or BRAF mutant status, patients will be treated with regorafenib or trifluridine-tipiracil (investigator's choice), as third line of therapy. Each treatment will be administered using standard doses and schedules until progression of disease or unacceptable toxicity. This study will also evaluate the activity and efficacy of cetuximab re-introduction in combination with irinotecan as third line therapy in the concept of re-challenge for those patients that will be treated in second line with FOLFOX plus bevacizumab, having a RAS or BRAF mutant disease at the time of progression after FOLFIRI plus cetuximab first line treatment. A novel characteristic of this program is that the therapeutic algorithm will be defined at each treatment decision (first line, second line and third line) in a prospective fashion in each patient by liquid biopsy assessment of RAS/BRAF status

Interventions

DRUGCetuximab

I LINE: \- FOLFIRI + cetuximab FOLFIRI: 200 mg L-folinic acid with 180 mg/ m² irinotecan over 1.30 h IV infusion, followed by a 400 mg/ m² IV bolus of fluorouracil followed by 2400 mg/ m² fluorouracil IV infusion over 46 h every 14 days. Cetuximab: 400 mg/m2 initial dose (120-minute IV infusion on cycle 1 day 1), then 250 mg/m2 once weekly thereafter II LINE: \- FOLFOX + cetuximab FOLFOX: 200 mg L-folinic acid given concurrently with 85 mg/ m² oxaliplatin over 2 h IV infusion, followed by a 400 mg/ m² IV bolus of fluorouracil followed by 2400 mg/ m² fluorouracil IV infusion over 46 h every 14 days. Cetuximab: as I line THIRD LINE: \- Irinotecan + cetuximab Irinotecan: 180 mg/ m² irinotecan over 1.30 h, IV infusion every 2 weeks. Cetuximab: as I line

DRUGFOLFIRI

I LINE: \- FOLFIRI + cetuximab FOLFIRI: 200 mg L-folinic acid given concurrently with 180 mg/ m² irinotecan over 1.30 h IV infusion, followed by a 400 mg/ m² IV bolus of fluorouracil followed by 2400 mg/ m² fluorouracil IV infusion over 46 h every 14 days. Cetuximab: 400 mg/m2 initial dose (120-minute IV infusion on cycle 1 day 1), then 250 mg/m2 once weekly thereafter

DRUGFOLFOX regimen

II LINE: \- FOLFOX + cetuximab FOLFOX: 200 mg L-folinic acid given concurrently with 85 mg/ m² oxaliplatin over 2 h IV infusion, followed by a 400 mg/ m² IV bolus of fluorouracil followed by 2400 mg/ m² fluorouracil IV infusion over 46 h every 14 days. Cetuximab: as I line

DRUGIrinotecan

III LINE: \- Irinotecan + cetuximab Irinotecan: 180 mg/ m² irinotecan over 1.30 h, IV infusion every 2 weeks. Cetuximab: as I line

Sponsors

University of Campania Luigi Vanvitelli
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

3 treatment lines in mCRC patients with RAS/BRAF wt tumors at start of first line.

Eligibility

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

Inclusion criteria

1. Histologically proven diagnosis of colorectal adenocarcinoma 2. Diagnosis of metastatic disease 3. RAS and BRAF wild-type status of FFPE analysis of primary colorectal cancer and/or related metastasis 4. Measurable disease according to Response Evaluation Criteria in Solid Tumors RECIST criteria, vers.1.1) 5. Male or female patients ≥ 18 years of age 6. ECOG Performance Status 0,1 7. Adequate bone marrow, liver and renal function assessed within 14 days before starting study treatment as defined by the following parameters: Bone marrow: * Absolute Neutrophil Count (ANC) ≥ 1.5 x 109/L * Hemoglobin (Hgb) ≥ 9 g/dL * Platelets ≥ 100 x 109/L Liver function: • Serum total bilirubin ≤ 1.5 x upper limit of normal (ULN) Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) and ALT (SGPT) ≤ 2.5 x ULN, except in patients with tumor involvement of the liver who must have AST and ALT ≤ 5 x ULN Renal function: • Serum creatinine ≤ 1.5 x ULN or 24-hour clearance ≥ 50 mL/min 8. If female and of childbearing potential, have a negative result on a pregnancy test performed a maximum of 7 days before initiation of study treatment 9. If female and of childbearing potential, or if male, agreement to use adequate contraception (e.g., abstinence, intrauterine device, oral contraceptive, or double-barrier method), during the study and until at least 3 months after last dose of study treatment administration, based on the judgment of the Investigator or a designated associate 10. Signed informed consent obtained before screening.

Exclusion criteria

1. Any contraindication to the use of cetuximab, Irinotecan, 5-FU, oxaliplatin, folinic acid,bevacizumab, trifluridine-tipiracil, regorafenib 2. Active uncontrolled infections, active disseminated intravascular coagulation or history of interstitial lung disease 3. Past or current history of malignancies other than colorectal carcinoma, except for curatively treated basal and squamous cell carcinoma of the skin cancer or in situ carcinoma of the cervix 4. Pregnancy (exclusion to be ascertained by a beta hCG test) 5. Breastfeeding 6. Fertile women (\<2 years after last menstruation) and men of childbearing potential not willing to use effective means of contraception• 7. Myocardial infarction, unstable angina pectoris, balloon angioplasty (PTCA) with or without stenting within the past 12 months before inclusion in the study, Grade III or IV heart failure (NYHA classification) 8. Cardiac arrhythmias requiring anti-arrhythmic therapy, with the exception of beta blockers or digoxin 9. Medical or psychological impairments associated with restricted ability to give consent or not allowing conduct of the study 10. Previous chemotherapy for the colorectal cancer with the exception of adjuvant treatment, completed at least 6 months before entering the study 11. Participation in a clinical study or experimental drug treatment within 30 days prior to study inclusion or during participation in the study 12. Known or clinically suspected brain metastases 13. History of acute or subacute intestinal occlusion or chronic inflammatory bowel disease or chronic diarrhoea 14. Severe, non-healing wounds, ulcers or bone fractures 15. Uncontrolled hypertension 16. Marked proteinuria (nephrotic syndrome) 17. Known DPD deficiency (specific screening not required) 18. Known history of alcohol or drug abuse 19. A significant concomitant disease which, in the investigating physician's opinion, rules out the patient's participation in the study 20. Absent or restricted legal capacity

Design outcomes

Primary

MeasureTime frameDescription
RRup to 59 monthsResponse rate (RR) for each line of treatment according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 in patients with RAS/BRAF wild type (WT) mCRCregimen over 3 treatment lines in patients with RAS/BRAF wild type (WT) mCRC at start of first line therapy

Secondary

MeasureTime frameDescription
OSup to 59 monthsOverall Survival
PFSfrom 8 weeks to 59 months (from the start of therapy until the first observation of disease progression or death due to any cause)Progression free survival (PFS) for each line
AEfrom screening up to 59 monthsSafety: Adverse events graded according NCI CTCAE v 5.0
EORTC Core Quality of Life questionnaire EORTC QLQ C30At screening, for each line of therapy at Week 4, at Week 25 of treatment start and at progressionThe EORTC Core Quality of Life questionnaire (EORTC QLQ-C30) is designed to measure cancer patients' physical, psychological and social functions. The questionnaire is composed of multi-item scales and single items
DERMATOLOGY LIFE QUALITY INDEX (DLQI)at screening, for each line of therapy at Week 4, at Week 25 of treatment start and at progressionThe DLQI consists of 10 questions concerning patients' perception of the impact of skin diseases on different aspects of their health-related quality of life over the last week.

Other

MeasureTime frameDescription
Explorative objective: overall survivalfrom screening up to 23 monthsoverall survival of RAS/BRAF WT mCRC patients who will be treated in a continuum of care strategy with cetuximab across all three therapy lines
Translational analyses using next generation sequencing (NGS) technologiesAt day 1 of each line of therapyMolecular profiles of tumor tissue and liquid biopsy samples (somatic mutations identified in tumor tissue by next generation sequencing) and surrogate markers of treatment activity (changes in molecular profile of liquid biopsies). Translational analyses of tumor biomarkers will be performed These include mutation in RAS, BRAF, PI3KCA; amplification of HER2, MET and loss of PTEN expression, all of which are implicated in resistance to anti-EGFR treatment. Moreover, 324 genes NGS panels will provide information regarding potential predictive and prognostic biomarkers of colorectal cancer disease. Fecal samples will be used for gut microbioma analysis, to understand how the composition of gut microbiome could influence treatment outcome and tolerability.
Exploratory objective: cumulative PFSfrom screening up to 23 monthsthe cumulative progression free survivals of RAS/BRAF WT mCRC patients who will be treated in a continuum of care strategy with cetuximab across all three therapy lines
Explorative objective: RR for each line of therapyfrom screening up to 23 monthsthe response rates for each line of therapy of RAS/BRAF WT mCRC patients who will be treated in a continuum of care strategy with cetuximab across all three therapy lines

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026