Mood Stabilizers: Implementing Combined Treatment Regimens in Bipolar Disorder

Abstract

Patients with bipolar disorders spend a greater proportion of their illness in a depressed or mixed state rather than experiencing either mania or hypomania. Over the past 20 years, most major pharmaceutical companies have either reduced or abandoned the research and development of novel psychiatric drugs, exiting the development of new, safe, efficacious, and tolerable treatment regimens for bipolar disorder. Therefore, optimizing the current treatments available is critical. We review studies of the last 15 years that provide guidance relevant to managing the maintenance phase of bipolar disorders. Based on these data, we provide recommendations for effective treatment planning and implementation, principally for the maintenance phase care of persons with bipolar disorder. We also discuss strategies for implementing medication regimens, differentiating strategies for maintenance phase treatment from those of acute phase treatment. Assessing key symptoms that are sensitive to change is critical for longitudinal assessments and treatment planning for patients with bipolar disorders. In most studies, only a subset of rating scale items differentiate patients with good responses from those without. Identified symptoms include racing thoughts, less need for sleep, hyperactivity, increased activity, and increased energy. We developed a procedure for using Multistate Outcome Analysis of Treatment (MOAT) in bipolar disorders. MOAT integrates efficacy and tolerability data during studies to provide information about the quantity and quality of time spent in distinct mood states. The protocol developed will be useful for assessing treatment strategies in bipolar disorder. This review contains 4 figures, 7 tables and 32 references Key words: bipolar, depression, lithium, mania, mixed, mood stabilizer, survival analysis, symptom domains, valproate