• H Bleiberg, S Van Belle, R Paridaens, G De Wasch, L Y Dirix, and M Tjean.
• Institut Bordet, Brussels, Belgium.
• Ann. Oncol. 1993 Jan 1; 4 Suppl 3: 43-5.

AbstractTropisetron is a 5-HT3 receptor antagonist which suppresses nausea and vomiting induced by cancer chemotherapeutic agents. In this study, tropisetron was evaluated on a compassionate-need basis in 545 cancer patients who had either proved refractory to antiemetic treatment during previous chemotherapy or who were at high risk of emesis as a result of current therapy. Tropisetron (5 mg or 10 mg) was administered as a 15-minute infusion prior to chemotherapy, with the further possibility of an additional dose, either orally or parenterally, on one or more subsequent days. In some patients the drug was administered orally on the day before treatment. On Day 1 of Course 1, 64.7% of patients had a complete response to tropisetron, i.e. no nausea or vomiting, and 26.9% of patients had a partial response. More than 80% of patients with a complete response in Course 1 had a complete response in Course 2 and of the partial responders in Course 1, 37% achieved a complete response in Course 2. Of the 7.6% failures in Course 1, a further 26% achieved a complete response in Course 2. Tropisetron was well tolerated, with adverse effects recorded in only 45 (8%) patients.

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