• Flavio Augusto Vercillo Luisi, Antônio Sérgio Petrilli, Cristiana Tanaka, and Eliana Maria Monteiro Caran.
• Pediatrics Oncology Section, Department of Pediatrics, Universidade Federal de São Paulo-Escola Paulista de Medicina, São Paulo, Brazil. luisi@osite.com.br
• Sao Paulo Med J. 2006 Mar 2; 124 (2): 616561-5.

Context And ObjectiveChemotherapy-induced emesis is a limiting factor in treating children with malignancies. Intensive chemotherapy regimens along with emetogenic drug administration have increased the frequency and severity of emesis and nausea. Our study was designed to consider the importance of this problem and the need for improvement in emesis treatment for patients receiving chemotherapy. Our objective was to compare the efficacy and safety of the antiemetic drug granisetron and a regimen of metoclopramide plus dimenhydrinate.Design And SettingOpen, prospective and randomized study at Instituto de Oncologia Pediátrica, Department of Pediatrics, Universidade Federal de São Paulo.MethodsFrom February to August 1994, 26 patients (mean age: 14 years) with osteosarcoma received 80 chemotherapy cycles of iphosphamide (2,500 mg/m2) plus epirubicin (75 mg/m2) or carboplatin (600 mg/m2), or epirubicin (75 mg/m2) plus carboplatin (600 mg/m2). Eighty chemotherapy treatments were analyzed regarding nausea and vomiting control. Patients were randomized to receive either a single dose of granisetron (50 microg/kg) or metoclopramide (2 mg/kg) plus dimenhydrinate (5 mg/kg infused over eight hours). Emesis and nausea were monitored for 24 hours by means of the modified Morrow Assessment of Nausea and Emesis. Statistical analysis utilized the chi-squared, Student t and Mann-Whitney tests, plus data exploration techniques.Results62.5% of the patients undergoing chemotherapy responded completely to granisetron, whereas 10% responded to metoclopramide plus dimenhydrinate (p < 0.0001). No severe adverse reactions were found in either of the treatments given.ConclusionIn children and adolescents with osteosarcoma, granisetron was safe and more efficient than metoclopramide plus dimenhydrinate for controlling chemotherapy-induced emesis and nausea.

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