Ondasetron versus granisetron in the prevention of chemotherapy‐induced nausea and vomiting. Results of a prospective randomized trial

Background. A single‐institution, prospective, randomized open trial was performed to compare ondansetron and granisetron in the prevention of chemotherapyrelated nausea and vomiting. The effect of antemetic drugs was analyzed indipendently for patients treated with highly emetogenic chemotherapy (Study 1), and those treated with moderately emetogenic regimens (Study 2). Methods. In Study 1. 182 patients treated with chemotherapeutic regimens containing high dose cisplatin (more than 70 mg/m2) were randomized to receive 24 mg of ondasentron intravenously (i. v.) or 3 mg of granisetron i. v. for the control of acute emesis. Patients treated with fractionated chemotherapy and those followed‐u…