Active clinical trials for "Depressive Disorder, Major"

The purpose of this study is to evaluate the efficacy of vortioxetine (5, 10, and 20 mg) versus placebo during the first 28 weeks of the 32-week double-blind treatment period in the prevention of relapse in participants with MDD who responded to acute treatment with vortioxetine 10 mg.

Major depressive disorder (MDD) is a global medical problem with significant shortcomings in current therapy. Chief among these is the delay between initiation of pharmacologic therapy and clinical improvement in symptoms. Recently ketamine, an NDMA-receptor antagonist has been shown to rapidly and effectively reverse the symptoms of MDD. Nitrous oxide, another NMDA-receptor antagonist, may produce the same effect with a cleaner side-effect profile and perhaps without the need for intravenous access and anesthesia personnel. Therefore, we propose conducting a pilot randomized placebo controlled double-blind crossover study in which patients will receive up to 50% nitrous oxide in oxygen or up to 50% oxygen in air for a period of one hour in addition to standard medical therapy. Depression severity will be assessed by a blinded observer pre-treatment, 30 minutes and 2 hours post treatment using the Hamilton depression rating scale.

In recent years, measurement-based care (MBC) has been gaining more attention in the treatment of depression because it allows psychiatrists to individualize treatment decisions for each patient based on the change of psychopathology and tolerance toward antidepressants. Several studies, such as the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial using MBC, found that MBC-informed sequential algorithms can be successfully integrated into clinical practice and improve patients' outcomes However, despite a strong theoretical rationale for MBC and data supporting the ability to implement MBC in clinical practice settings, there is currently no randomized controlled trial in MDD patients comparing MBC with usual/standard care. The investigators compare MBC with clinician's treatment decisions, standardizing care to two commonly prescribed antidepressants. Therefore, the aim of this study is to determine the effects of MBC in patients with MDD compared to standard treatment (ST). The research hypothesis is that compared to ST, the estimated time to response and to remission would be significantly shorter in the MBC group without increased dropout rates and side effect burden.

This multi-centre study will follow a randomised, double-blind, parallel-group, active-controlled design and will evaluate the efficacy, safety and tolerability of bupropion extended-release (XL) (300 mg/day) compared with escitalopram (10-20 mg/day) in outpatients and inpatients with major depressive disorder (MDD). The total duration of the study will be 11 weeks consisting of three phases. The screening phase (phase I) will be lasting for 0-14 days, subjects will be randomised to bupropion XL or escitalopram in a 1:1 ratio for acute phase treatment phase (phase II) for 8 weeks. There are 3 dose levels during this acute treatment phase. The 3-dose level plan is designed to ensure each drug is titrated according to the prescribing information and to reach an optimal clinical dose. Finally patients will enter the taper phase (phase III) for up to 1 week to assess and reduce the possible withdrawal symptoms. In China almost all existing antidepressants are available on the market, but bupropion XL has not yet been approved. This Phase III clinical trial will be used for the purpose of registering bupropion XL in China.

Mirtazapine is a non-SSRI (selective serotonin reuptake inhibitor) medication with a unique structure and mechanism of action. Recent study results suggest that mirtazapine may be more effective and faster acting than other antidepressants. Levels of alcohol use have been shown to be associated with levels of depressive symptoms among comorbid populations. Our own recent open label pilot study suggested robust within-group efficacy for mirtazapine for decreasing both the drinking and the depressive symptoms of persons with co-occurring alcohol dependence/major depressive disorder (AD/MDD). However, no placebo control group was employed in that study, so between-group efficacy versus placebo could not be assessed. The current grant submission proposes to conduct a first double-blind, placebo-controlled study to evaluate the efficacy of mirtazapine versus placebo for decreasing the alcohol use and depressive symptoms of persons with comorbid AD/MDD. If the results of this proposed double-blind pilot trial are promising, then the effect sizes found in this proposed study will be used to help design an adequately-powered R01 treatment trial to definitively test the efficacy of mirtazapine in this comorbid population.

The investigators are conducting a research study to learn about the safety and benefit of using a medication called buprenorphine for patients with difficult to treat depression. This research study is testing whether combining two medications will be effective in treating depression when initial treatment with just one antidepressant does not relieve the depressive symptoms; this is what is called "difficult to treat depression" or "treatment resistant depression". The two medications the investigators are using are: an anti-depressant medication called venlafaxine extended release (venlafaxine XR), which is the generic form of Effexor, and buprenorphine. Buprenorphine is a medication that is FDA approved for the treatment of opioid dependence. The investigators are testing whether adding buprenorphine to venlafaxine XR enhances treatment response.

The primary hypothesis is that compared to placebo, 10g of daily creatine monohydrate for eight weeks will be associated with significant increases in frontal lobe phosphocreatine and beta-nucleoside triphosphate (β-NTP) concentrations. A secondary hypothesis is that decreased depressive symptoms measured with the Children's Depression Rating Scale-Revised (CDRS-R) and Montgomery-Asberg Depression Rating Scale (MADRS) will be reciprocally correlated with increased β-NTP concentrations.

This study will investigate the effectiveness of mindfulness-based cognitive therapy (MBCT) for mood stabilization in perinatal women (preconception, pregnant, and postpartum) with a history of mood disorders. MBCT is a short-term group psychotherapy that has shown effectiveness in preventing depressive relapse. MBCT teaches mindfulness practices and cognitive-behavioral techniques.

The purpose of this study is to determine if monoamine oxidase B (MAO-B) total distribution volume (VT), after phenelzine treatment and if so to what extent.

This study will evaluate the efficacy and safety of ALKS 5461.