The Stanley Foundation Bipolar Network (SFBN) is an international, multisite network investigating the characteristics and course of bipolar disorder. Methods (history, ratings and longitudinal follow-up) are standardized and equally applied in all 7 centres. This article describes demographics and illness characteristics of the first 152 German patients enrolled in the SFBN as well as the results of 2.5 years of follow-up. Patients in Germany were usually enrolled after hospitalisation. More than 72% of the study population suffered from bipolar I disorder and 25% from bipolar II disorder. The mean ± SD age of the study participants was 42.08 ± 13.5 years, and the mean ± SD age of onset 24.44 ± 10.9 years. More than 40% of the sample reported a rapid-cycling course in history, and even more a cycle acceleration over time. 37% attempted suicide at least once. 36% had an additional Axis I disorder, with alcohol abuse being the most common one, followed by anxiety disorders. During the follow-up period, only 27% remained stable, 56% had a recurrence, 12.8% perceived subsyndromal symptoms despite treatment and regular visits. 27% suffered from a rapid-cycling course during the follow-up period. Recurrences were significantly associated with bipolar I disorder, an additional comorbid Axis I disorder, rapid cycling in history, a higher number of mood stabilizers and the long-term use of typical antipsychotics. Rapid cycling during follow-up was only associated with a rapid-cycling course in history, a higher number of mood stabilizers and at least one suicide attempt in history.

In this study, quetiapine was more effective than VPA on the number of depressive days and similar to VPA in the treatment of manic symptoms. Quetiapine was associated with a greater incidence of side effects, particularly orthostatic dysregulation, sedation, and weight gain.

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Beside some methodological restrictions like inconsistent information of weight changes (e. g. percent vs. mass) and the small sample of available long term studies, this review specifies the incidence of weight changes for commonly used psychotropic drugs and might be helpful to look for alternatives.