Active clinical trials for "Depressive Disorder, Major"

A multicentre, randomised, open label study of out-patients with major depression who have failed to respond adequately to antidepressant treatment for their current episode of depression. The study compares outcomes associated with two methods of switching from current antidepressant to duloxetine

The purpose of this study is to assess the safety and feasibility of concurrent treatment of nicotine dependence (cigarette smoking) and acute depression. Participants who meet DSM-IV criteria for both nicotine dependence and acute major depression will be given pharmacological treatment for both disorders at the same time, along with a brief behavioral intervention for smoking cessation.

To evaluate the efficacy of a fixed dose of SR58611A(350 mg q12) compared to placebo in patients with MajorDepressive Disorder (MDD) using escitalopram (10 mgqd) as positive control. The study is a multicenter, US and Canadian, randomized, double-blind, 3-parallel-group, placebo- and escitalopram-controlled, Phase III study consisting of four segments (A, B, C and D). Segment A is a 1-week, placebo, single-blind period. Segment B is an 8-week, double-blind period. Segment C is an optional 18-week double-blind extension period. Segment D is a 1-week safety follow-up period after study drug discontinuation or early termination (during Segment B or C).

The purpose of this study is to evaluate the effects of the addition of CONCERTA® (methylphenidate hydrochloride, a central nervous system (CNS) stimulant) or placebo in adult outpatients with Major Depressive Disorder who are currently being treated with oral antidepressant medication (selective serotonin reuptake inhibitors or selective norepinephine reuptake inhibitors). The general symptoms of depression will be evaluated, as measured by the Montgomery Asberg Depression Rating Score (MADRS) on fatigue, energy, and overall severity of illness. The safety and tolerability of the CONCERTA® and antidepressant combination therapy will also be assessed.

This is a study of the effectiveness of adding Abilify (aripiprazole), an atypical antipsychotic medication, to ongoing selective serotonin reuptake inhibitor (SSRI) antidepressant treatment for depressed outpatients who are not responding fully to SSRI treatment alone. It is hypothesized that patients' functioning will improve after 12 weeks of treatment with Aripiprazole and SSRI medication.

The purpose of this research is to determine if pregnenolone supplement is associated with a reduction in substance use and craving in patients with recurrent major depressive disorder or bipolar disorder and substance abuse/dependence. This research also wants to explore if pregnenolone supplements are associated with improvement in psychiatric symptoms and memory, which are often negatively affected in these patients. It is hypothesized that patients receiving pregnenolone supplements would show greater improvements in mood symptoms and memory, and crave substances less than the patients receiving placebo.

Low heart rate variability is a marker of increased risk of cardiac mortality, and is observed in depressed coronary artery disease patients. Some antidepressants may themselves, however, decrease heart rate variability. We will test the hypothesis that greater reduction in heart rate variability will be associated with duloxetine (which has noradrenergic activity) than escitalopram (a selective serotonin reuptake inhibitor). We will also test the hypothesis that changes in heart rate variability are related to the magnitude of norepinephrine transporter occupancy.

The purpose of this study is to evaluate the efficacy, safety, and tolerability of Levomilnacipran ER versus placebo in the treatment of outpatients with major depressive disorder.

Primary objective: - To evaluate the long-term safety and tolerability of SR58611A (amibegron) patients with major depressive disorder (MDD). Secondary objective: - To determine plasma concentrations of SR58878 (the active metabolite of SR58611A), for pharmacokinetic population analyses, to evaluate the quality of life (QoL) in patients with MDD, and to evaluate the efficacy of amibegron in patients with MDD.

The purpose of this study is to evaluate the efficacy of quetiapine SR in combination with an antidepressant versus an antidepressant alone in patients with MDD with inadequate response to an antidepressant treatment. PLEASE NOTE: Seroquel SR and Seroquel XR refer to the same formulation. The SR designation was changed to XR after consultation with FDA.