• Tang-Her Jaing, Pei-Kwei Tsay, Iou-Jih Hung, Chao-Ping Yang, and Wen-Yu Hu.
• Divisions of Hematology and Oncology, Department of Pediatrics, Chang Gung Children's Hospital, 5 Fu-Shin Street, Kwei-Shan 333, Taoyuan, Taiwan. jaing001@cgmh.org.tw
• Pediatr Hematol Oncol. 2004 Apr 1;21(3):227-35.

AbstractThis prospective study was designed to compare the efficacy of ondansetron with granisetron in terms of complete emesis control and time spent in an ambulatory care setting in children with acute lymphoblastic leukemia (ALL) undergoing moderately emetogenic cyclophosphamide-based chemotherapy. The costs for both treatments are also examined. A total of 33 children (mean age: 7.8 +/- 4.9 year) were studied during 66 chemotherapy cycles. Analysis was based on 33 courses of a single oral dose of granisetron and 33 courses of ondansetron incorporating 2 intravenous doses of ondansetron 0.15 mg/kg followed by 1 dose of the same dosage orally. There was no significant difference between the 2 treatments in terms of overall efficacy (McNemar's chi-square test). Twenty of 33 patients (60.6%) receiving granisetron and 15 of 33 patients (45.5%) receiving ondansetron experienced no emesis 24 h after chemotherapy (p = .227). Boys experienced greater rates of vomiting than did girls despite antiemetic treatment; however, no apparent reason for the gender discrepancy was noted. Both antiemetic regimens have similar antiemetic efficacy for treating the moderately emetogenic effects associated with cyclophosphamide-based chemotherapy. It is possible that the granisetron regimen may be preferable because it is simpler to administer and more cost-effective.

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