- Patients must have a life expectancy of >= 24 months
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Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-3
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Patients must have a newly diagnosed colon or rectal cancer (initial diagnosis, either a biopsy or curative surgery, whichever is most recent) within 60 days of registration and have not yet received radiation or chemotherapy
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Patients must have stage I, II, or III disease at the time of enrollment and will be treated with curative-intent
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- this can be defined either clinically or pathologically if they have already undergone surgery
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- for staging of both colon and rectal cancer, the definition of stage I-III is based on the seventh edition (2010) or an updated version of the tumor, node, metastasis (TNM) staging system
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Patients who choose to not receive radiation and/or chemotherapy after a curative-intent surgery are eligible to participate
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