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ABSTRACT
Background: Delayed emesis following chemotherapy in cancer patients remains an important challenge for treatment and contributes to poor quality of life and treatment compliance.
Objectives: To compare the efficacy and tolerability of associations of metopimazine and ondansetron with methylprednisolone for the prevention of delayed chemotherapy-induced nausea and emesis.
Methods: A randomised, open-label, observational, cross-over design was used to compare two treatment strategies following two consecutive sessions of chemotherapy separated by at least 1 week. Patients were randomised to treatment with sublingual metopimazine (15 mg tid) or ondansetron lyophilisate (8 mg bid) for 5 days. All patients received oral methylprednisolone (48 mg). Patients reported episodes of nausea and emesis in a diary, and completed the Functional Living Index Emesis quality of life questionnaire. Adverse events were also evaluated.
Results: Ninety-nine patients were included in the study, 79.5% of whom were women, with a mean age of 52.7 years. Breast cancer was the most common individual cancer and most patients were receiving combinations of cytotoxic drugs. Treatment was successful at preventing delayed emesis in 73.6% of patients during treatment with the metopimazine–methylprednisolone association and 57.5% during the ondansetron–methylprednisolone association. Analysis of discordant pairs revealed a significant benefit in favour of the metopimazine–methylprednisolone association ( p = 0.006). No significant difference was observed between treatments for the overall quality of life score. The incidence of gastrointestinal disorders, particularly constipation, was significantly higher during ondansetron–methylprednisolone treatment ( p = 0.0112).
Conclusion: Metopimazine is an effective and well-tolerated alternative to setrons for the treatment of delayed nausea and emesis in patients undergoing chemotherapy.