title: Randomized double-blind comparison of single high-dose ondansetron and multiple standard-dose ondansetron in chemotherapy-naive pediatric oncology patients.
abstract: This prospective, double-blind, randomized study compares the antiemetic efficacy of an equivalent dose of ondansetron administered as a single high dose or as multiple standard doses in pediatric oncology patients. Thirty-one chemotherapy-naive patients were randomized at diagnosis to receive either single high-dose ondansetron (0.6 mg/kg, maximum dose 32 mg) or multiple standard-dose ondansetron (0.15 mg/kg, maximum dose 8 mg, every 4 hr for four doses). Antiemetic efficacy was assessed by an emesis scale described as follows: 1, no nausea or emesis; 2, nauseous but able to eat; 3, nauseous and unable to eat; and 4, emesis. Sixteen patients received high-dose and 15 received standard-dose ondansetron. Patients receiving moderately or severely emetogenic chemotherapy were evenly distributed between the two treatment groups. Eighty-one percent of patients receiving high-dose and 80% receiving standard-dose ondansetron rated 1 or 2 on the emesis scale (p = 0.93). No patient experienced any clinical or laboratory toxicity. Our study suggests that single high-dose ondansetron is as efficacious as the multiple standard-dose regimen and is well tolerated. Its use will facilitate the administration of ondansetron in pediatric patients receiving chemotherapy.
authors.affiliation: Department of Pediatrics, New York Medical College, Valhalla, USA.
authors.forename: C
authors.initials: C
authors.lastname: Sandoval
authors.forename: D
authors.initials: D
authors.lastname: Corbi
authors.forename: B
authors.initials: B
authors.lastname: Strobino
authors.forename: M
authors.initials: M
authors.lastname: Fevzi Ozkaynak
authors.forename: O
authors.initials: O
authors.lastname: Tugal
authors.forename: S
authors.initials: S
authors.lastname: Jayabose
mesh_terms: D000293:Adolescent; D000932:Antiemetics / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D017294:Ondansetron / Q000008:administration & dosage*
chemical_list: D000932:Antiemetics; D017294:Ondansetron