None listed
Conditions
Brief summary
Who is it for? You can join this study if you have metastatic colorectal cancer and have either a KRAS wild type or KRAS G13D mutation Trial details: Patients that pass all screening assessments, including CT scan and blood test will randomly divided into two groups. One group wiil receive cetuximab alone ( Arm A) and the other group will receive cetuximab in combination with irinotecan ( Arm B). In both groups, the chemotherapy is given intravenously. Cetuximab is administered weekly to both groups and patients in Arm B will receive irinotecan every 14 days. The study aims to evaluate the response to the different therapy regimens, by looking at the response on CT scans, survival rates and quality of life.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
1. Males or females with histologically confirmed colorectal cancer; 2. Age greater than or equal to 18 yrs; 3. Metastatic disease not amenable to complete resection as determined by investigator; 4. Measurable or evaluable disease as assessed by CT scan of the chest, abdomen and pelvis as per the RECIST v1.1 criteria, within 21 days prior to randomisation; 5. Prior confirmation of tumour status as either: “All RAS WT”, - that is no mutation or changes in either KRAS NRAS OR KRAS G13D by means of mutation or relevant analysis performed on representative samples of diagnostic tumour tissue. Also, in cases where the BRAF tumour status is known there must be no mutation. Representative sample of diagnostic tumour tissue must be available for retrospective mutational analysis at a central laboratory. 6. ECOG performance status of 0-1; 7. Received and progressed on, or intolerant of all therapies listed below, where failure is defined as radiological progression during therapy, or toxicity limiting further therapy, or progression within 6 months of prior treatment. Previous treatment should have ceased at least 14 days prior to randomisation. - thymidylate synthase inhibitor (e.g. 5-fluorouracil, capecitabine, raltitrexed, tegafur-uracil, S1) Thymidylate synthase inhibitors may have been given as monotherapy, or in combination with oxaliplatin or irinotecan - irinotecan-containing regimen (ie. single agent or in combination and still able to tolerate additional irinotecan treatment); - oxaliplatin-containing regimen, OR have documented unsuitability for an oxaliplatin-containing regimen; 8. Adequate haematological and renal function as determined by the investigator within 14 days prior to randomization - Platelets greater than or equal to 75 x 10 to the power of 9/L, Hemoglobin greater than or equal to 80 g/L, ANC greater than or equal to 1.0 x 10 to the power of 9/L - Serum creatinine less than or equal to 1.5 x institutional upper limit of normal or Creatinine Clearance greater than 50 ml/min 9. Adequate liver function with serum total bilirubin less than or equal to 2.5 x ULN, and both ALT and AST are less than or equal to 5.0 x ULN, within 14 days prior to randomization. Patients with Gilbert’s syndrome may be included as long as unconjugated bilirubin levels fall within these parameters; 10. Life expectancy of at least 12 weeks; 11. Study treatment both planned and able to start within 14 days of randomisation; 12. Willing and able to comply with all study requirements, including treatment, timing and/or nature of required assessments; 13. Signed, written informed consent;
Exclusion criteria
1. Prior treatment with cetuximab or other drugs targeting the EGFR pathway, such as panitumumab, gefitinib , erlotinib; 2. Severe restrictive lung disease or radiological pulmonary findings of “interstitial lung disease” on the baseline chest CT which, in the opinion of the investigator, represents significant pathology; 3. Brain metastases that are either untreated, symptomatic, or which have not been stable for at least one month after treatment; 4. History of other malignancies except where treated with curative intent AND with no current evidence of disease AND considered not to be at risk of future recurrence; 5. Concurrent illness, including severe infection that may jeopardize the ability of the patient to undergo the procedures outlined in this protocol with reasonable safety; 6. Presence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule, including alcohol dependence or drug abuse; 7. Pregnancy, lactation, or inadequate contraception. Women must be post menopausal, infertile, or use a reliable means of contraception. Women of childbearing potential must have a negative pregnancy test done within 7 days prior to registration. Men must have been surgically sterilised or use a (double if required) barrier method of contraception.