• G L Plosker and P Benfield.
• Adis International Limited, Auckland, New Zealand.
• Pharmacoeconomics. 1996 Apr 1;9(4):357-74.

AbstractThe efficacy of granisetron in preventing acute nausea and vomiting during the 24 hours following chemotherapy in patients with cancer is equivalent to that of other serotonin 5-HT3 receptor antagonists (ondansetron and tropisetron) and similar to or greater than that of conventional antiemetic regimens such as metoclopramide plus dexamethasone. Like other 5-HT3 receptor antagonists, granisetron is generally well tolerated by most patients and its antiemetic efficacy is enhanced when used concomitantly with dexamethasone. To date, pharmacoeconomic evaluations of granisetron have involved intravenous administration of the drug to adult patients with cancer receiving single-dose or fractionated chemotherapy of moderate to high emetogenic potential. In economic analyses conducted in France, a single dose of granisetron 3mg was associated with a mean direct treatment cost per patient (or per well-controlled patient) approximately 50% lower than that for ondansetron 8mg intravenously followed by 8mg orally every 8 hours for 3 days, in patients receiving single-dose chemotherapy. Direct costs per patient were approximately 20 to 30% lower with granisetron (usually 3 mg/day) than ondansetron (usually 24 to 32 mg/day intravenously) in patients receiving chemotherapy fractionated over several days. Sensitivity analysis showed that the results, were robust to variations in the acquisition costs of the antiemetics. Granisetron also remained more cost effective than ondansetron with variations in the antiemetic dosage regimens, except when the granisetron dosage remained unchanged while the ondansetron dosage was reduced to a single 8mg intravenous dose on each day prior to chemotherapy (and no change in efficacy was assumed). Other economic evaluations suggest that granisetron may be more cost effective than a combined antiemetic regimen of high dose metoclopramide plus dexamethasone, and selected use of granisetron or ondansetron in patients receiving emetogenic chemotherapy can be implemented with relatively small incremental increases to the total cancer treatment budget, albeit with a marked increase in antiemetic acquisition costs. In conclusion, granisetron is an effective and well tolerated agent for the prophylaxis of acute chemotherapy-induced nausea and vomiting, and its selective use in this clinical setting can provide cost-effective antiemetic therapy.

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