Use of modafinil to moderate the relationship between cancer-related fatigue and depression in 541 patients receiving chemotherapy: A URCC CCOP study.

9572 Background: Over 50% patients with cancer report symptoms of depression; 15% meet diagnostic criteria for Major Depressive Disorder. Depression is associated with increased insomnia, fatigue and reduced quality of life. We previously found that modafinil is effective for reducing high levels of fatigue among patients undergoing chemotherapy. This study aims to test whether modafinil can alleviate symptoms of depression by reducing fatigue. Methods: This study is a secondary analysis of 541 cancer patients receiving chemotherapy and experiencing fatigue (Brief Fatigue Inventory (BFI) >=3) that were randomized to receive either 200 mg of modafinil (N=260) or placebo (N=281) daily from baseline (Cycle 2) until post-test (Cycle 4). Depression was measured by the Center for Epidemiologic Studies Depression Scale (CES-D) at baseline and post-test. The CES-D total score and its subscales (Positive Affect, Negative Affect, Somatic Symptoms, and Interpersonal Symptoms) were analyzed. A linear model with CES-D...