• Mark T Holdsworth, Dennis W Raisch, and Jami Frost.
• Department of Pharmacy and Pediatrics, College of Pharmacy, University of New Mexico, Albuquerque, 87131, USA. mholdsworth@salud.unm.edu
• Cancer. 2006 Feb 15; 106 (4): 931-40.

BackgroundTo the authors' knowledge there is little information available regarding the effectiveness of standard antiemetic therapy among cancer patients who receive emetogenic chemotherapy in clinical practice, especially in the pediatric population. The current study was undertaken to determine the effectiveness of standard antiemetic interventions among children receiving emetogenic chemotherapy.MethodsThe authors conducted a retrospective review of antiemetic surveys for children who received emetogenic chemotherapy. Patients and/or their parents were surveyed for acute and delayed nausea and emesis after each course of emetogenic chemotherapy. The survey consisted of validated measures of the severity of nausea and emesis. Complete protection (CP) rates were calculated for each chemotherapy regimen during both the acute and delayed phases and also by gender and age group (ages birth-3 yrs, 4-11 yrs, and 12-20 yrs). Antiemetic therapy consisted of intravenous ondansetron administered once daily during chemotherapy either alone (for moderately emetogenic chemotherapy) or in combination with dexamethasone (for severely emetogenic chemotherapy).ResultsIn total, 224 different patients completed 1256 surveys. CP from both acute and delayed nausea and emesis was more likely in the children ages birth-3 years than in older children. For moderately emetogenic regimens, nausea and emesis in the acute and delayed phases were controlled well. Among severely emetogenic chemotherapy regimens, 7 of 12 different regimen types had CP rates < 50% in either the acute phase or the delayed phase. CP rates were particularly low for cisplatin-based and cyclophosphamide-based regimens.ConclusionsNausea and emesis remain significant problems among children who receive emetogenic chemotherapy. CP rates were associated significantly with patient age, and higher rates were observed among very young children.Copyright 2006 American Cancer Society.

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