We evaluated the effectiveness of
aripiprazole among bipolar patients who had switched to this medication as a result of difficulty maintaining on their prestudy atypical
antipsychotics (AAPs) because of subsyndromal mood symptoms or intolerance. This study included 77 bipolar patients who were in syndromal remission with an
AAP as monotherapy or with an
AAP combined with a mood stabilizer(s) who needed to switch from their present
AAP because of subsyndromal symptoms or intolerance. At 24 weeks after switching to
aripiprazole, the remission rates on the Montgomery-Åsberg Depression Rating Scale (MADRS) and on both the MADRS and the Young
Mania Rating Scale were increased significantly in the full sample and in the inefficacy subgroup. In the inefficacy subgroup, the MADRS score change was significant during the 24 weeks of study. Total
cholesterol and
prolactin decreased significantly after switching to
aripiprazole. The proportion of patients who had abnormal values for
central obesity and
hypercholesterolemia decreased significantly from baseline to week 24. These findings suggest that a change from the current
AAP to
aripiprazole was associated with improvement in subsyndromal mood symptoms and several
lipid/metabolic or safety profile parameters in patients with
bipolar disorder with tolerability concerns or subsyndromal mood symptoms.