Active clinical trials for "Bipolar Disorder"

Insulin is a hormone produced by the body to regulate blood sugar. Insulin resistance is a state when the body is not using insulin correctly, and more insulin is needed to maintain normal blood sugar. Insulin resistance is common in bipolar patients and even more common in bipolar patients treated with antipsychotics. Insulin resistance from antipsychotics can lead to type 2 diabetes, metabolic syndrome and cardiovascular disease and is known to lead to worse psychiatric outcomes (less mood stability) and lower life expectancies in bipolar disorder. Abnormal regulation of the folate cycle is known to play a role in antipsychotic-induced insulin resistance and the main endpoint to the folate cycle is the production of methyl donors for DNA methylation. DNA methylation is critical as it regulates how genes are expressed. Thus, changes in DNA methylation may play a role in the disease process of antipsychotic-induced insulin resistance. The purpose of this study is to examine the differences in the DNA methylation of candidate tissues known to have a role in the development of insulin resistance. The three groups of bipolar patients to be studied are 1) antipsychotic treated patients with impaired glucose tolerance, 2) antipsychotic treated patients with normal glucose tolerance and 3) lithium treated patients with normal glucose tolerance. Group 1 will be compared to groups 2 and 3 in order to assess how DNA methylation in the skeletal muscle and fat tissue changes due to medication effects (group 2 vs. 3) and medication side effects (group 1 vs. 2). Secondary analyses include the analysis of how fats are processed in skeletal muscle and fat tissue in relation to antipsychotic-induced insulin resistance and the correlation of DNA methylation across different tissues. The investigators hypothesize that antipsychotic-induced insulin resistance is to due changes in the way DNA is expressed (through epigenetic changes) which causes further changes in the way fats are processed in the body eventually leading to insulin resistance. This work is based on preliminary findings however further work is needed to identify the true mechanisms behind antipsychotic-induced insulin resistance and in particular, the main tissue in which this mechanism occurs.

Objective. Bipolar Disorders (BD) are a major public health problem. The investigators still lack knowledge of the mechanisms which contribute to BD. Hence treatments are few and limited, and clinical decision making is less refined. Currently, the investigators are investigating the effects of midday bright light therapy for the treatment of bipolar depression (University of Pittsburgh IRB approved protocol titled Light Therapy for Bipolar Disorder, IRB#: PRO09020546). In this study, the investigators propose to investigate a possible biological mechanism which might explain response to light treatment in depressed bipolar patients.

The purpose of this study is to compare abdominal weight gain and fat distribution in people taking aripiprazole versus risperidone or quetiapine, to people not taking any of these antipsychotic medications.

The MoodNetwork, a patient-powered research network (PPRN), is one of 18 PPRNs participating in Patient-Centered Outcomes Research Institute's (PCORI) PCORnet network. Its objective is to improve the nation's capacity to conduct comparative effectiveness research that reflects questions of greatest importance to patients and other stakeholders. A robust data infrastructure will be built that, in phase one, allows participants to contribute data, including those from participant questionnaires, visualize their own health information in intuitive and helpful ways, and share their aggregated de-identified health information within and outside of the Network.

The purpose of this study is to validate that SULT4A1-1 status stratification improves responses to atypical antipsychotics in schizophrenia and to extend these findings into bipolar disorder.

The main objective of this observational study is to characterize new users of quetiapine XR as well as new users of other study drugs (i.e. the comparison group) and to quantify the risk of developing newly diagnosed outcomes of interest in new users of quetiapine XR as well as in other study drugs.

Understudied drugs will be administered to children per standard of care as prescribed by their treating caregiver and only biological sample collection during the time of drug administration will be involved. A total of approximately 7000 children aged <21 years who are receiving these drugs for standard of care will be enrolled and will be followed for up a maximum of 90 days. The goal of this study is to characterize the pharmacokinetics of understudied drugs for which specific dosing recommendations and safety data are lacking. The prescribing of drugs to children will not be part of this protocol. Taking advantage of procedures done as part of routine medical care (i.e. blood draws) this study will serve as a tool to better understand drug exposure in children receiving these drugs per standard of care. The data collected through this initiative will also provide valuable pharmacokinetic and dosing information of drugs in different pediatric age groups as well as special pediatric populations (i.e. obese).

The purpose of this study is to reassure the clinical study data on atypical antipsychotics effect on quality of life in Korean Bipolar patients.

The primary objective of the study is to evaluate the efficacy of administered maintenance treatments in bipolar disorder I and II, defined as the percentage of patients who experience a relapse episode during the first 9 months after a mood event (manic or depressive).

The purpose of the study is to compare the sedation profile one hour after dose administration between Seroquel IR and Seroquel XR.