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  • Title: Phase II randomized, controlled trial of 1 day versus 3 days of dexamethasone combined with palonosetron and aprepitant to prevent nausea and vomiting in Japanese breast cancer patients receiving anthracycline-based chemotherapy.
    Author: Kosaka Y, Tanino H, Sengoku N, Minatani N, Kikuchi M, Nishimiya H, Waraya M, Katoh H, Enomoto T, Sato T, Kuranami M, Watanabe M.
    Journal: Support Care Cancer; 2016 Mar; 24(3):1405-11. PubMed ID: 26349772.
    Abstract:
    PURPOSE: Dexamethasone, plus a 5-HT3 receptor antagonist and an NK-1 receptor antagonist are recommended for controlling the chemotherapy-induced nausea and vomiting (CINV) of highly emetogenic chemotherapy. Several days of dexamethasone are effective for CINV; however, dexamethasone also has side effects. The purpose of this trial was to investigate whether the use of a second-generation 5-HT3 receptor antagonist and an NK-1 receptor antagonist could allow a reduced dose of dexamethasone for breast cancer patients receiving highly emetogenic chemotherapy. METHODS: Eighty breast cancer patients who received an anthracycline-cyclophosphamide combination regimen were enrolled. The patients were randomized to arm A (dexamethasone days 1-3) and arm B (dexamethasone day 1). The primary endpoint was complete response (CR) (no emetic episodes and no rescue medication) during the overall phase (days 1-5). The secondary endpoints were the CR during the delayed phase (days 2-5), complete control (CC) (no emetic episodes, no rescue medication, and no more than mild nausea) during the overall phase, and the safety of this antiemetic therapy. RESULTS: There were no significant differences in the rates of CR and CC between arm A and B as follows: CR overall phase--arm A: 82.9%, 90% confidence interval [CI] 71.3-90.5% vs arm B: 82.1%, 90% CI 70.0-90.0%; p = 1.00; CR delayed phase--arm A: 87.8%, 90% CI 77.0-93.9% vs arm B: 94.9%, 90% CI 85.6-98.3%; p = 0.43; CC overall phase--arm A: 48.8%, 90% CI 36.4-61.3% vs arm B: 61.5%, 90% CI 48.4-73.2%; p = 0.27. There were very few adverse events and no severe adverse events associated with this antiemetic therapy. CONCLUSIONS: The results suggest that the antiemetic effect provided by dexamethasone administered for 3 days can be obtained by dexamethasone administered for 1 day.
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