Active clinical trials for "Depressive Disorder, Major"

The purpose of this study is to evaluate how taking duloxetine 60mg every day affects the transfer of two normal body chemicals, 3,4-dihydroxyphenylglycol (DHPG) and norepinephrine (NE), across cells in blood and cerebrospinal fluid.

This study is examining the safety and effectiveness of two medications, ketamine and riluzole, in treating patients with treatment resistant major depressive disorder. This study will also examine the effectiveness of an FDA approved drug called lamotrigine in decreasing the potential side effects associated with ketamine.

SJW has the greatest evidence of herbal medicine efficacy in treating MDD. In treating anxiety, kava has the greatest evidence of efficacy. As comorbidity of MDD and anxiety commonly occurs, it is conceivable that a combination of an established antidepressant agent such as SJW and an established anxiolytic agent such as kava may effectively treat MDD presenting with comorbid anxiety. It is possible that a beneficial synergistic effect may also occur between SJW and kava, improving the treatment outcomes in MDD with comorbid anxiety, than by the individual substances alone. Determination of this is not addressed in this study due to limitations of time and resources. The determination of the strength of the SJW-kava combination will be ascertained by comparing similar trials using SJW and kava mono-therapy in addressing MDD and GAD. The hypothesis is that a combination of SJW and kava will reduce MDD occurring with comorbid anxiety more than placebo.

In this study, the focus is on an individual's attachment security and its relation to treatment outcome in Major Depression.Adult attachment reflects how one seeks psychological and physical proximity to others for security and protection in times of stress. Researchers typically define four types of attachment security: one secure and three insecure (preoccupied, dismissing, and fearful). Adults with Major Depressive Disorder (MDD) will be randomly assigned to either Interpersonal Psychotherapy (IPT) or to Cognitive Behavior Therapy (CBT). The expectation is that adults with avoidant attachment styles will respond better to CBT, and adults with preoccupied attachment styles will respond better to IPT. Also, in comparison to CBT, outcome in IPT is hypothesized to be more closely related to change in attachment.

This study will evaluate changes in brain gamma-aminobutyric acid (GABA) levels due to treatment with escitalopram in people with major depressive disorder.

Placebo pills (pills with no active ingredients) have been shown in research studies to somehow produce self-healing processes. The purpose of this study is to determine whether people will be willing to enter an open-label non-deceptive placebo treatment for Major Depressive Disorder (MDD) and whether open-label placebo can be effective for treating MDD in the context of a supportive physician-patient relationship.

The investigators will investigate in a sham controlled design antidepressant effects and safety of DBS to the superolateral branch of the main medial forebrain bundle (slMFB).

Primary Objective: To evaluate the efficacy of three fixed doses of SSR125543 (20 mg daily, 50 mg daily, and 100 mg daily) compared to placebo in outpatients with major depressive disorder, as assessed by the change from baseline (Day -1) to Day 56 in the 17-item Hamilton Depression Rating Scale (HAM-D) total score. Secondary Objectives: To evaluate the tolerability and safety of SSR125543 in outpatients with major depressive disorder To evaluate plasma concentrations of SSR125543

The purpose of this study is to determine whether morning bright light therapy is an effective treatment for major depression during pregnancy compared with low-intensity placebo light therapy, when administered 60 minutes daily for 5 weeks.

The purpose of this study is to evaluate the long- term safety of F2695-SR in the treatment of adults with major depressive disorder.