Annals of Oncology 5:579-584, 1994
© 1994 European Society for Medical Oncology
research-article |
Oral granisetron alone and in combination with dexamethasone: A double-blind randomized comparison against high-dose metoclopramide plus dexamethasone in prevention of cisplatin-induced emesis
1Centre François Baclesse Caen, France
2Nasionale Hospital, University of The Orange Free State Bloemfontein, South Africa
3Addington Hospital, University of Natal Durban, South Africa
4St. Mary's Hospital London, U.K.
5SmithKline Beecham Pharmaceuticals Reigate, Surrey, U.K.
Correspondence to: Eve Cedar, SmithKline Beecham Pharmaceuticals, 47–49 London Road, Reigate, Surrey RH2 9YF, UK.
PATIENTS AND METHODS:: Three anti-emetic treatment regimens were compared in 357 patients receiving cisplatin therapy (mean dose 81 mg/m2) in this double-blind randomized study. Regimens studied were i) granisetron 1 mg bd orally for 7 days (granisetron alone); ii) gran 1 mg bd orally for 7 days plus prophylactic dexamethasone (12 mg i.v.) on the first day only (gran/dex); iii) metoclopramide (3 mg/kg i.v. loading dose; 4 mg/kg i.v. infusion) plus dex (12 mg i.v.) on the first day followed by met 10 mg orally tds for a further 6 days (met/dex).
RESULTS:: At 24 hours, gran/dex was significantly superior to met/dex in terms of total anti-emetic control, defined as no nausea, no vomiting, no rescue anti-emetic therapy, not withdrawn (54.7% gran/dex vs. 37.2/ met/dex; (P < 0.01). There was also a significant delay in time to onset of nausea (P < 0.01) and vomiting (P < 0.01) following gran/dex compared with met/dex. Oral granisetron alone was as effective as met/dex in control of acute emesis in all parameters examined. There were no significant differences between the three groups in the control of delayed nausea and vomiting.
The most common adverse experiences in both granisetron groups were headache and constipation, both characteristic of 5-HT3 antagonists. Agitation, somnolence, diarrhoea and decreased appetite were reported more frequently by the met/dex group.
CONCLUSIONS:: Oral granisetron as a single agent is as effective as high doses of i.v. met/dex in preventing cisplatin-induced emesis. Oral granisetron in combination with a corticosteroid provides superior anti-emetic control to the met/dex regimen in patients undergoing highly emetogenic chemotherapy.
granisetron, oral, metoclopramide, dexamethasone, anti-emetic, cisplatin
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