Active clinical trials for "Depressive Disorder, Major"

Evaluating the efficacy of vortioxetine 10 mg/day and 20 mg/day versus placebo on depressive symptoms in adolescents (age ≥12 and ≤17 years) with a DSM-5™ (Diagnostic and Statistical Manual of Mental Disorders, 5th edition) diagnosis of Major depressive disorder (MDD).

This study will be an 8-week open-label pilot study examining subjective and objective changes in mood, anxiety, cognition, and sleep before and after the introduction of a probiotic supplement containing Lactobacillus helveticus and Bifidobacterium longum in 10 treatment-naïve participants diagnosed with major depressive disorder (MDD). In order to examine the full composition of the micro biome, the investigators will also be collecting and analyzing fecal samples as well as blood samples to examine changes in plasma levels of inflammatory markers, 5-HT, and tryptophan in order to look at possible underlying mechanisms of any changes seen.

A proof-of-concept study to determine the antidepressant potential of Dextromethorphan for treating depression associated with Major Depressive Disorder in inpatients.

The proposed pilot study will assess whether people with major depressive disorder experience psychological and behavioral benefits and/or harms from psilocybin. This study will investigate acute and persisting effects of psilocybin on depressive symptoms and other moods, attitudes, and behaviors. The primary hypothesis is that psilocybin will lead to rapid and sustained antidepressant response, as measured with standard depression rating scales.

This study will evaluate the efficacy, safety, and tolerability of adjunctive ALKS 5461 in adults who have treatment refractory MDD.

This is a Phase 1, conventional, double-blind, placebo-controlled, single-center clinical study comprised of 2 segments (Segment 1 and Segment 2) in which single and multiple doses of SUVN-911 or placebo will be orally administered to healthy male subjects to evaluate the safety, tolerability, and pharmacokinetic profile.

Despite the availability of a wide range of antidepressant drugs, clinical trials indicate that 30% to 40% of patients with major depression fail to respond to first-line antidepressant treatment, despite adequate dosage, duration, and compliance. Moreover, in those patients who do experience symptomatic relief following conventional anti-depressant treatment, clinical improvement is not evident for 3-4 weeks. Thus, there is a clear need to develop novel and improved therapeutics for unipolar depression. A previous study showed that the intravenous administration of scopolamine produces antidepressant effects. This study is designed to determine if scopolamine combine with Escitalopram produce antidepressant effects at an early stage.

Research has shown that people suffering from MDD tend to maintain dysfunctional expectations despite experiences that disconfirm expectations. Recently, it has been shown that this persistence of expectations is due to maladaptive information processing involving "cognitive immunization". This experimental study aims at testing three different strategies to inhibit cognitive immunization, in order to enhance expectation change.

The purpose of this study is to examine the effects of a 10-week Omega-3 Fatty Acid treatment phase on brain chemistry of adolescents with major depressive disorder (MDD) using proton magnetic resonance imaging.

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