Active clinical trials for "Depressive Disorder, Major"

The purpose of this study is to compare the safety and efficacy of buprenorphine with placebo for adults with treatment resistant depression (TRD).

This study will evaluate the effect of food on LY2216684. There will be 2 study periods each lasting up to 5 days. There will be at least 7 days between the two doses and a follow up will occur at least 7 days after the last dose. Screening is required within 30 days prior to the start of the study.

The purpose of this study was to further characterize the efficacy, safety, and tolerability of a single fixed dose level of vilazodone compared to placebo in patients with major depressive disorder.

The study will evaluate how genetic profiles respond to LY2216684 and the effect of Quinidine on the pharmacokinetics (PK) of LY2216684 in a specific genetic profile. Side effects will be documented.

This study will examine SPD489 in subjects aged 18-65 with major depressive disorder (MDD) who are taking certain types of antidepressants but continue to have residual depression symptoms. Eligible patients will remain on their antidepressant but will be randomized to either receive supplemental SPD489 or placebo (i.e. sugar pill). The purpose of this study is to help answer the following questions: How safe is SPD489 for the supplemental treatment of depression and what are the side effects that might be related to it? Can supplemental SPD489 help patients who still have residual depression symptoms while taking an antidepressant? How much SPD489 should be given to patients with depression who are also taking an antidepressant? How does SPD489 compare to placebo in depressed patients who are also taking an antidepressant?

This study will examine SPD489 in subjects aged 18-65 with major depressive disorder (MDD) who are taking certain types of antidepressants but continue to have residual depression symptoms. The purpose of this study is to help answer the following questions: How safe is SPD489 for the supplemental treatment of depression and what are the side effects that might be related to it? Can SPD489 help patients with depression who are also taking an antidepressant? How much SPD489 should be given to patients with depression who are also taking an antidepressant? How does SPD489 compare to placebo in depressed patients who are also taking an antidepressant?

Although treatment guidelines manifest that antidepressant response usually appear with a delay of several weeks and suggest that treatment should be changed if a partial response has not occurred after 4~6 week, these beliefs are no longer held by experts, and a new concept is raised that the first 2 weeks of treatment may be a useful strategy for improving the management of depression. New evidence indicates that early treatment response can be predicted with high sensitivity after 2 weeks of treatment in patients with major depressive disorder (MDD). Early improvement not only predicted response or remission, but also that lack of improvement was associated with little chance of response if the treatment strategy remained unchanged. The criterion of a 20% score reduction has been chosen as an early indicator of improvement because it can be reliably measured in clinical trials and translates into a clinically relevant change in the severity of depressive symptoms. Antidepressants that enhance both serotonergic and noradrenergic neurotransmission may be more effective than selective serotonin reuptake inhibitors (SSRIs) for acute-phase therapy of major depressive disorder. As a noradrenergic and specific serotonergic antidepressant, the antidepressive mechanism of mirtazapine is quite superior to SSRI and in particular has been suggested to have a faster onset of action than SSRIs in MDD patients. The aim of this study is to provide physicians with further information regarding early improvement and the effectiveness of mirtazapine combined with a SSRI antidepressant therapy in nonresponders.

The purpose of this study is to assess the long-term safety, tolerability and efficacy of oral OPC-34712 as adjunctive therapy in the treatment of adult patients with Major Depressive Disorder (MDD).

The purpose of this study is to assess the effect and safety of AZD6765 in patients with major depressive disorder who exhibit inadequate response to antidepressants. AZD6765 is a channel blocker of the N-methyl-D-aspartate (NMDA) class of glutamate receptors.

The purpose of this study is to test the antidepressant effects of Ezogabine in major depressive disorder (MDD). The investigators also aim to determine the safety and tolerability Ezogabine in patients with MDD. The investigators hypothesize that depressive symptoms will be significantly decreased following an 8-week treatment period of the medication compared to baseline.