Depakote ER in Bipolar Depression
The purpose of this study is to examine the safety and efficacy of Depakote ER in bipolar depression and to evaluate metabolic and GABA changes with Depakote ER administration using PET and MRI/MRS brain imaging techniques.
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Depakote ER in Bipolar Depression|
- Montgomery Asberg Depression Rating Scale (MADRS) [ Time Frame: 7 weeks ] [ Designated as safety issue: No ]Change from baseline to endpoint in Montgomery Asberg Depression Rating Scale (MADRS)
|Study Start Date:||January 2004|
|Study Completion Date:||January 2009|
|Primary Completion Date:||January 2009 (Final data collection date for primary outcome measure)|
Experimental: Depakote ER
Depakote ER up to 1500 mg/day
Drug: Depakote ER
Other Name: Depakote ER
Mood disorders are important public health problems. Bipolar disorder is a major psychiatric disorder characterized by mood cycles alternating between mania and depression and affects approximately 1% of the population. Most patients are treated beginning in the early twenties and then embark on a course marked by multiple recurrences, hospitalizations, and encounters with legal authorities. These disorders inflict substantial morbidity which yields important deficits in occupational and interpersonal function. The risk of suicide in mood disorders may be as high as 10%.
Although the outlook for recovery from acute manic or depressive episodes is generally excellent, the long-term prognosis of the disorder varies tremendously across the patient population. The introduction of lithium, anticonvulsants and atypical antipsychotics significantly changes the outlook for bipolar disorder, with some individuals on chronic treatment attaining complete remission and indefinite prophylaxis against mood episodes. However, such optimum outcomes may be limited to as few as one-third to one-half of all treated patients. The remaining experiences various combinations of breakthrough mood episodes, including chronic mood instability, persistent depression, and rapid cycling.
Very little research has been conducted with bipolar disorder, and no medications have an FDA indication to treat bipolar depression. Previous studies suggest that Depakote is promising in the treatment of mixed and depressed episodes of bipolar disorder. This study utilizes the extended release formulation of divalproex sodium, with demonstrated increased tolerability.
We propose investigating safety, tolerability and efficacy of Depakote ER monotherapy in Bipolar I, II or NOS depression, and monitoring associated changes in brain GABA levels. In addition, we intend to evaluate and assess the differences between brain metabolic rate and GABA levels in bipolar disorder patients and healthy volunteers.
|United States, California|
|Stanford University Bipolar Disorders Clinic|
|Stanford, California, United States, 94305-5723|
|Study Director:||Terence A. Ketter, MD||Stanford University, Department of Psychiatry and Behavioral Sciences|