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  • Title: Donepezil for cancer fatigue: a double-blind, randomized, placebo-controlled trial.
    Author: Bruera E, El Osta B, Valero V, Driver LC, Pei BL, Shen L, Poulter VA, Palmer JL.
    Journal: J Clin Oncol; 2007 Aug 10; 25(23):3475-81. PubMed ID: 17687152.
    Abstract:
    PURPOSE: To evaluate the effectiveness of donepezil compared with placebo in cancer patients with fatigue as measured by the Functional Assessment for Chronic Illness Therapy-Fatigue (FACIT-F). PATIENTS AND METHODS: Patients with fatigue score >or= 4 on a scale of 0 to 10 (0 = no fatigue, 10 = worst possible fatigue) for more than 1 week were included. Patients were randomly assigned to receive donepezil 5 mg or placebo orally every morning for 7 days. A research nurse contacted the patients by telephone daily to assess toxicity and fatigue level. All patients were offered open-label donepezil during the second week. FACIT-F and/or the Edmonton Symptom Assessment System (ESAS) were assessed at baseline, and days 8, 11, and 15. The FACIT-F fatigue subscale score on day 8 was considered the primary end point. RESULTS: Of 142 patients randomly assigned to treatment, 47 patients in the donepezil group and 56 in the placebo group were assessable for final analysis. Fatigue intensity improved significantly on day 8 in both donepezil and placebo groups. However, there was no significant difference in fatigue improvement by FACIT-F (P = .57) or ESAS (P = .18) between groups. In the open-label phase, fatigue intensity continued to be low as compared with baseline. No significant toxicities were observed. CONCLUSION: Donepezil was not significantly superior to placebo in the treatment of cancer-related fatigue.
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