• Masaru Minami.
• Department of Pharmacology, Faculty of Pharmaceutical Sciences, Health Science University of Hokkaido, 0610293, Japan. minami@hoku-iryo-u.ac.jp
• Cancer Chemother. Pharmacol. 2003 Aug 1; 52 (2): 89-98.

PurposeNausea and vomiting are two of the most debilitating side effects of cytotoxic chemotherapy. Prevention of nausea and vomiting is, thus, very important to ensure that cancer patients continue to receive optimal cytotoxic therapy while seeking to maintain their quality of life. Significant advances in antiemetic therapy have been achieved since the introduction of the 5-HT(3) receptor antagonists, and these agents are currently regarded as first-line antiemetic agents. The aim of this article is to examine the hypothesis that there is a dose-response effect of granisetron for preventing chemotherapy-induced nausea and vomiting in cancer patients.MethodsA literature review of relevant publications was undertaken to provide a comprehensive review of issues related to the control of chemotherapy-induced emesis with escalating doses of granisetron.ResultsThere is evidence to suggest that there is a significant trend towards an improved efficacy of granisetron-in both the control of emesis and secondary end-points such as nausea and anorexia-with increasing doses, up to 40 micro g/kg, in adults. At this dose, the likelihood of treatment success may be enhanced for most patients regardless of their individual emetogenic risk. Additionally, incremental doses of granisetron (up to 9 mg) have been shown to be effective and well tolerated in patients with refractory emesis.ConclusionsThose patients experiencing inadequate control of nausea and vomiting following granisetron may also benefit from retreatment with supplementary doses of granisetron, and over subsequent chemotherapy cycles, these patients should receive granisetron 40 micro g/kg to ensure emesis protection.

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