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Rechallenge of Cetuximab Combined With Irinotecan as Third-line Chemotherapy in Patients With Metastatic Colorectal Cancer - Phase II Study

A Phase II Study of Cetuximab Rechallenge in Combination With Irinotecan in Advanced Metastatic Colorectal Cancer Without KRAS or NRAS or BRAF Mutation (All Wild Type) for Patients Pretreated With FOLFIRI and Cetuximab in First Line With Stopping Cetuximab for Progressive Disease After a Previous Response (Partial Response or Complete Response) and After Treatment With a Fluoropyrimidine, Oxaliplatin Plus Bevacizumab Regimen

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02316496
Acronym
REGAIN
Enrollment
2
Registered
2014-12-15
Start date
2015-09-23
Completion date
2017-01-31
Last updated
2017-08-01

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

Conditions

Colorectal Cancer Metastatic

Keywords

Cancer, Colorectal, Metastatic, Thrid-line, Irinotecan, Cetuximab

Brief summary

The main objective of this study is to evaluate the objective response rate at two months (complete disappearance of the disease and partial disappearance of the disease) obtained after administration of combination therapy with cetuximab and irinotecan in the patients with metastatic colorectal cancer. Secondaries objectives will be assessed progression-free survival, overall survival, toxicity, quality of life.

Interventions

DRUGcetuximab

cetuximab 500mg/m²/ IV infusion, (q2w)

DRUGIrinotecan

Irinotecan 180mg/m², in 500ml NaCl 0.9% solution, 90 min IV infusion (q2w)

Sponsors

GERCOR - Multidisciplinary Oncology Cooperative Group
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Signed and dated informed consent * Histologically confirmed metastatic adenocarcinoma of the colon or rectum * All Wild Type KRAS (exon 2 \[codons 12-13\], exon 3 \[codons - 61\]; exon 4 \[codon 146\]), NRAS (exon 2 \[ codons 12-13\] and exon 3 \[codon 61) and BRAF (V600E) tumor ( local assessment performed either on primary tumor or metastasis) * First line chemotherapy regimen with a fluoropyrimidine and Irinotecan (FOLFIRI) + cetuximab with initial partial or complete response and progressive disease (PD) with PD ≤ 6 weeks after the last administration of cetuximab * Other line(s) of therapy(ies) including the following drugs: second line oxaliplatin based chemotherapy with fluoropyrimidines (5FU or capecitabine) + bevacizumab and eventually regorafenib (possible but not mandatory) and progression or limiting toxicity to the last therapy with a minimum of 4 months between last injection of cetuximab and inclusion in this study * At least one measurable lesion ≥ 10 mm as assessed by CT-scan or MRI (Magnetic Resonance Imaging) according to RECIST v1.1 (All sites must be evaluated ≤ 28 days prior to the enrolment) * Age ≥18 years * World Health Organization (WHO) Performance status (PS) 0-2 * The patient has adequate organ function, defined as : Absolute neutrophil count (ANC) ≥ 1.5 x 109/L, hemoglobin ≥ 9 g/dL, and platelets ≥ 100 x 109/L.Total bilirubin ≤ 1.5 times upper limit of normal value (ULN), serum alkaline phosphatase level \< 5 times ULN, Serum creatinine level \<150μM/l * For female patients of childbearing potential, negative pregnancy test within 7 days before starting the study drug * Men and women are required to use adequate birth control during the study (when applicable) and until 6 months after the end of study treatment * Registration in a national health care system (CMU included)

Exclusion criteria

* Previous chemotherapy other than adjuvant therapy with different combinations than those scheduled in first and second line treatment * Presence of any KRAS, BRAF or NRAS mutation by allelic discrimination on tumor DNA * Significant cardiovascular disease including unstable angina or myocardial infarction within 12 months before initiation of study treatment or a history of ventricular arrhythmia (treated or not) * History or evidence of central nervous system metastasis (systematic CT-scan or MRI not mandatory if no clinical symptoms) * Known allergy or hypersensitivity to cetuximab * Previous or concurrent malignancy except for basal or squamous cell skin cancer, in situ carcinoma of the cervix, low-risk prostate cancer according to d'Amico classification or other solid tumors treated curatively and without evidence of recurrence for at least 5 years prior to the study * Active or uncontrolled clinically serious infection * Known human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS)-related illness * Other serious and uncontrolled non-malignant disease * Pregnancy * Breast feeding * Treatment with any other investigational medicinal product within 28 days prior to study entry * Known Gilbert's syndrome * Concomitant administration of live, attenuated virus vaccine such as yellow fever vaccine * Concomitant use with St John's Wort * Chronic inflammatory bowel disease and/or Bowel obstruction

Design outcomes

Primary

MeasureTime frame
Objective response rate (ORR)At 2 months

Secondary

MeasureTime frameDescription
Time to response (TTR)up to 27 monthsTime from the date of inclusion to the date of the first confirmed CR or PR during study treatment
Objective response rate (ORR)up to 27 monthsBest response observed during investigational treatment combination. From the start of treatment until treatment failure
Disease control rate (DCR)up to 27 monthsThe proportion of patients with tumor response (Complete response or partial response) or tumor stabilization as best response during study treamtent
Progression-free survival (PFS)up to 27 monthsTime from the date of inclusion to the date of the first progressive disease (RECIST criteria) or death (any cause)
Time to progression (TTP)up to 27 monthsTime from the date of inclusion to the date of the first obseved progression (PD), or death due to progression during the study treatment
Time to treatment failure (TTF)up to 27 monthsTime from the date of inclusion to the date the decision was made to end the study treatment for any reason
Duration of response (DOR)up to 27 monthsOnly for patients with tumor response (complete reposne or partial response) , from first confirmed response to first observed progression (PD) or death due to PD during study treatment
Overall survival (OS)up to 27 monthsFrom the date of inclusion to the date of patient death, due to any cause, or to the last date the patient was known to be alive
Adverse Events (CTCAE v.4.03)Up to 27 months
Quality of lifeUp to 27 monthsUsing EORTC Quality of Life Questionnaire - C30 (QLQ-C30) and the Dermatology Life Quality Index (DLQI ) questionnaires
Respose rateup to 27 monthsRAS and BRAF status in circulating tumoral DNA
PFSup to 27 monthsRAS and BRAF status in circulating tumoral DNA
Duration of stable disease (DoSD)up to 27 monthsOnly for patient with a stable disease (SD) as best response during the study treatment, from date of inclusion to the first observed progression (PD) or death due to progression

Countries

France

Outcome results

None listed

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