Study on Aspirin Versus Placebo in Resected Colon Cancer With PI3K Mutation Stage III or II High Risk
French Prospective Randomised Double Blind Study, on Aspirin Versus Placebo in Resected Colon Cancer With PI3K Mutation
University Hospital, Rouen
264 participants
Jul 12, 2018
INTERVENTIONAL
Conditions
Summary
Four retrospective studies were recently published on efficacy of aspirin in patients with surgically resected colon cancer. Two of these studies strongly suggested that aspirin used in low doses (100 mg/d) after surgical resection of colorectal cancer with PI3K mutation could act as a targeted therapy with a major protective effect on the risk of recurrence. The other two studies did not confirm the benefit of aspirin in this situation. These four retrospective studies provide an insufficient level of evidence to demonstrate the benefit of low-dose aspirin as adjuvant to surgery for colorectal cancer. Therefore, it is necessary as recommended in the conclusion of these studies and meta-analyses to perform a randomised prospective study to validate these data.
Eligibility
Inclusion Criteria13
- Age ≥ 18 years
- Colonic adenocarcinoma stage III
- Colonic adenocarcinoma stage II high risk MSS:
- T4bN0 or T4aN0 tumour penetrating the surface of the visceral peritoneum
- or less than 12 nodes evaluated;
- or with at least two of the following criteria:lymphatic involvement, perineural invasion, venous invasion
- or diagnosis of bowel obstruction or perforation; or poor differentiated tumour.
- PI3K mutation, exon 9 or 20 (tumour)
- Resection R0
- WHO performance status 0-2
- Chest and abdominal CT scan ≤ 8 weeks
- Life expectancy ≥ 3 years
- Written consent signed
Exclusion Criteria8
- Anticoagulant and/or Antiaggregating treatment including clopidogrel
- Regular aspirin use (\> 3 doses per week during more than 3 months the last year)
- Contraindication to Aspirin : Allergy to aspirin, Active or antecedent peptic ulcer
- Severe renal or hepatic insufficiency
- Pregnancy or nursing ongoing
- Rectal cancer
- Hereditary forms (i.e. lynch syndrome patients)
- Follow-up of the patient not feasible
Interventions
Patient with colonic adenocarcinoma stage III or II high risk will take aspirin 100 mg/day during 3 years
Patient with colonic adenocarcinoma stage III or II high risk will take placebo of aspirin 100 mg/day during 3 years
Surgical resection of colonic adenocarcinoma stage III or II high risk will be done in accordance with local guidelines
Molecular analysis of exon 9 and 20 of PI3K will be done using operative piece
Blood intake will be done every 6 months to evaluate patient compliance to treatment
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT02945033