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Background: Chemotherapy-induced nausea and vomiting (CINV) remains a major adverse effect of cancer therapy. We aimed to determine outcomes associated with use of aprepitant in outpatients undergoing highly emetogenic chemotherapy in Germany from a patient's and payer's perspective., Methods: A decision-analytic model compared an aprepitant regimen (aprepitant/ondansetron/dexamethasone) to a control regimen (ondansetron/dexamethasone) over a five days period. Clinical results and resource utilisation observed in aprepitant phase III clinical trials were assigned German unit cost data., Results: Complete response over one chemotherapy cycle was observed in 68% of patients in the aprepitant group (N=514) compared to 48% of patients in the control group (N=518). Patients were estimated to have gained an equivalent of 15 additional hours of perfect health per cycle (0.63 quality-adjusted life days) with aprepitant-based regimen compared to control regimen. Cost per quality-adjusted life year gained with aprepitant was estimated at euro28,891., Conclusions: Aprepitant substantially improved CINV-related health outcomes in patients undergoing highly emetogenic chemotherapy. Incremental benefits materialised in a cost-effective fashion.

The cost effectiveness of ondansetron was compared with that of metoclopramide in the prevention of acute emesis due to highly emetogenic chemotherapy in an open, randomised, parallel group pilot study. Ondansetron was given as three 8 mg intravenous doses (0, 4 and 8 h) and metoclopramide as an intravenous loading dose (3 mg/kg) followed by a maintenance dose of 0.5 mg/kg/h for 8 h. Therapeutic outcomes and full utilisation costs, that is nursing time, material costs, in addition to drug acquisition prices were recorded for each antiemetic for 24 h following chemotherapy. The cost per successfully treated patient (< or = 1 emetic episode and no adverse events) was 95.20 pounds for ondansetron and 92.18 pounds for metoclopramide. The results of the study therefore suggest that for the control of acute emesis due to highly emetogenic chemotherapy ondansetron and metoclopramide are equally cost-effective treatments.