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.
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
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
219
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
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
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
III LINE: \- Irinotecan + cetuximab Irinotecan: 180 mg/ m² irinotecan over 1.30 h, IV infusion every 2 weeks. Cetuximab: as I line
A.O.U. Ospedali Riuniti
Ancona, AN, Italy
Ente Ecclesiastico Ospedale Generale Regionale 'F. Miulli'
Acquaviva delle Fonti, BA, Italy
IRCCS Istituto Tumori 'Giovanni Paolo II'
Bari, BA, Italy
Ospedale IRCCS 'Saverio de Bellis'
Castellana Grotte, BA, Italy
Ospedale Sacro Cuore di Gesù - FATEBENEFRATELLI
Benevento, BN, Italy
P.O. Antonio Perrino
Brindisi, BR, Italy
A.O.U. Cagliari - Presidio Policlinico D. Casula
Monserrato, CA, Italy
A.R.N.A.S. Garibaldi - P.O. Garibaldi-Nesima
Catania, CT, Italy
A.O.U. Mater Domini
Catanzaro, CZ, Italy
Fondazione IRCCS Ospedale Casa Sollievo della Sofferenza
San Giovanni Rotondo, FG, Italy
...and 15 more locations
RR
Response 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
Time frame: up to 59 months
PFS
Progression free survival (PFS) for each line
Time frame: from 8 weeks to 59 months (from the start of therapy until the first observation of disease progression or death due to any cause)
OS
Overall Survival
Time frame: up to 59 months
AE
Safety: Adverse events graded according NCI CTCAE v 5.0
Time frame: from screening up to 59 months
EORTC Core Quality of Life questionnaire EORTC QLQ C30
The 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
Time frame: At screening, for each line of therapy at Week 4, at Week 25 of treatment start and at progression
DERMATOLOGY LIFE QUALITY INDEX (DLQI)
The 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.
Time frame: at screening, for each line of therapy at Week 4, at Week 25 of treatment start and at progression
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