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Friday 01 July 2005

Tropisetron: optimal dosage for children in prevention of chemotherapy-induced vomiting.

By: Cappelli C, Ragni G, De Pasquale MD, Gonfiantini M, Russo D, Clerico A.

Pediatr Blood Cancer 2005 Jul;45(1):48-53

The antiemetic efficacy and tolerability of Tropisetron (Navoban, Novartis Pharma Switzerland AG, Bern), a selective 5-hydroxytriptamine receptor antagonist, has been assessed in the prevention of acute vomiting in children receiving chemotherapy for solid tumors. Tropisetron iv was given 30 min before administration of chemotherapy at a dose of 5 mg in children <20 kg body weight and at a dose of 10 mg in those >20 kg. A total of 50 children were studied in 189 courses of chemotherapy. Control of emesis was defined as total in absence of acute vomiting, as major if 1 or 2 events of acute vomiting occurred, and as not controlled if >2 events of acute vomiting occurred. Response was studied, taking into account Tropisetron dosage, degree of emetogenicity of the chemotherapeutic agents in pretreated and non-pretreated patients, and according to age groups. Tropisetron, administered in a single daily dose of 8-12 mg/m(2), was found to be very effective in completely controlling acute emesis in 92% of the courses of moderately and highly emetogenic chemotherapy administered to pediatric patients with solid tumors. Moreover, Tropisetron, at this dosage, did not lead to any adverse effects.

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