A pilot study of a cognitive-behavioral treatment for anxiety and depression in patients with Parkinson disease

Anxiety and depression often remain unrecognized or inadequately treated in patients with Parkinson disease (PD). Cognitive–behavioral therapy (CBT) is effective, but limited evidence supports its use for anxiety and depression in patients with PD. Sixteen patients with PD having significant anxiety and/or depressive symptoms were assigned to CBT or enhanced usual care. Assessments occurred at baseline, posttreatment, and 1-month follow-up. The CBT intervention included tools for anxiety, depression, and healthy living with PD symptoms. Individual sessions were delivered by telephone or in person, based on patient preference. Treatment was feasible with participants choosing 67% of sessions by telephone and 80% completed treatment. The between-group effect sizes for change scores from baseline to posttreatment and baseline to 1-month follow-up were large (posttreatment: d = 1.49 for depression and 1.44 for anxiety; 1-month follow-up: d = .73 for depression and 1.24 for anxiety), although only the posttrea...