Long-term efficacy of a psychological intervention program for patients with refractory bipolar disorder: A pilot study

The aim of this research was to test the long-term efficacy of combined standard treatment (pharmacotherapy and adjunctive psychosocial treatment based on a cognitive-behavioral model) compared with standard drug treatment for patients with recurrent bipolar disorder. Twenty patients selected according to DSM-IV-TR criteria were randomized to 1) combined treatment or 2) control treatment. A multigroup experimental design with repeated assessment measures (pre-treatment, post-treatment, 6-month follow-up, and 12-month follow-up) was used. Results of the repeated measurement analysis showed a significant increment in scores of Global Activity Functioning within the combined treatment group during the follow-up, which was not observed in the control treatment group. Therefore, the effectiveness of psychotherapy tends to increase with time, and this improvement is not significant until 12 months of follow-up.