RATIONALE: Studying tissue samples in the laboratory from participants receiving treatment on the Selenium and Vitamin E Cancer Prevention Trial (SELECT) SWOG-S0000 may help doctors predict a participant's response to treatment and help plan the best treatment. PURPOSE: This phase III trial is studying the effect of vitamin E and/or selenium on colorectal polyps in men enrolled on SELECT Trial SWOG-S0000.
Age range
50 Years – 120 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Effect of Selenium on Colorectal Adenoma (CRA) Occurrence, Analyzed by Active Selenium vs. Selenium Placebo
Timeframe: From 1 year post randomization through study completion
Effect of Selenium on Advanced Neoplasia, Analyzed by Active Selenium vs. Selenium Placebo
Timeframe: From 1 year post randomization through study completion
Effect of Selenium and/or Vitamin E on Colorectal Cancer (CRC) Incidence
Timeframe: From 1 year post randomization through study completion
Effect of Selenium on Occurrences of Multiple (>2) Adenomas
Timeframe: From 1 year post randomization through study completion