Background
Although face-to-face cognitive-behavioral therapy was found to be beneficial for the treatment of depression in Parkinson’s disease (PD) in a recent randomized-controlled trial, access to care was identified as a critical issue that needs to be addressed in order to improve the management of this non-motor complication in PD. The purpose of this study was to examine the feasibility and effect of telephone-based cognitive-behavioral therapy for depression in Parkinson’s disease.
Methods
Twenty-one depressed people with Parkinson’s disease participated in an NIH-sponsored uncontrolled pilot trial of telephone-based cognitive-behavioral therapy in an academic medical center from October 2009 to February 2011. The Hamilton Depression Rating Scale was the primary outcome. Treatment was provided to people with Parkinson’s disease for 10 weeks, modified for delivery over the phone, and supplemented with 4 separate phone-based caregiver educational sessions. Assessments were completed at baseline and 5 (midpoint), 10 (end-of-treatment), and 14 weeks (follow-up) post-enrollment.
Results
Twenty (95%) people with Parkinson’s disease completed the study treatment. Phone-based cognitive-behavioral therapy was associated with significant improvements in depression, anxiety, negative thoughts, and coping. Mean Hamilton Depression Rating Scale change from baseline to week 10 was 7.91 points (P<.001, Cohen’s d=1.21).
Conclusions
Telephone-based cognitive-behavioral therapy may be a feasible and helpful approach for treating depression in Parkinson’s disease and warrants further exploration in randomized-controlled trials. Results were comparable to those observed in the few in-person cognitive-behavioral treatment studies for depression in Parkinson’s disease conducted to date.