Evaluation of the Incidence of Nausea and Vomiting in Patients With Colorectal Cancer Receiving Irinotecan-based Therapy

This is a study to determine how much nausea and or vomiting is caused by irinotecan-based chemotherapy in patients with colorectal cancer. Patients with colorectal cancer scheduled to receive their first cycle of an irinotecan-based chemotherapy regimen are eligible. Any chemotherapy agents administered in combination with irinotecan must have low-minimal potential to cause nausea and or vomiting. Examples of acceptable regimens would be irinotecan in combination with infusional fluorouracil and leucovorin (FOLFRI) with or without bevacizumab and irinotecan in combination with cetuximab. Patients who have received prior non-irinotecan-based chemotherapy are eligible providing they experienced no vomiting and no greater than mild nausea with their prior chemotherapy.