Major Depressive Disorder Clinical Trials

This is an interventional, parallel arm assignment treatment study in individuals with Major Depressive Disorder (MDD). Each individual will be treated with a single dose of pimavanserin or placebo plus a single dose of psilocybin. Evaluations will be taken before dosing and following dosing at several timepoints up to 5 weeks post-dosing. Read Less

This study looks at the role of the Nociceptin/Orphanin FQ receptor system in the brain of individuals with current or past major depressive disorder (MDD). It also examines how individuals with a history of depression make certain decisions and which brain regions are involved in such decisions. Information collected through MRI, PET, biospecimens (i.e., blood, saliva) and behavioral tasks will be used to predict depressive symptoms in the future. Read Less

This open-label functional Magnetic Resonance Imaging (fMRI) study will assess the effects of a single dose of psilocybin on rumination and the neural correlates of rumination in individuals with major depressive disorder. Read Less

Lack of perceived control, particularly during stress, has been critically implicated in major depressive disorder (MDD) and anhedonic symptoms, especially among female adolescents; yet the neural underpinnings of perceived control disruptions in MDD remain poorly understood. Using functional magnetic resonance imaging with a novel "value of control task" in conjunction with a prospective design, this study will provide a comprehensive understanding of stress and perceived control related mechanisms in female adolescents with MDD and will examine stress-induced disruptions in perceived control as a predictor of "real world" expressions of maladaptive coping and anhedonia. Read Less

The study will evaluate the efficacy of NBI-1065845 compared with placebo as an adjunctive treatment in participants with MDD on improving symptoms of depression. Read Less

This study tests the efficacy of interpersonal psychotherapy (IPT) for major depression following perinatal loss (early and late fetal death and early neonatal death) in a sample of 274 women in Flint and Detroit, Michigan. The trial will be the first fully powered randomized trial of treatment for any psychiatric disorder following perinatal loss. Read Less

The purpose of this study is to examine the efficacy, safety, and tolerability of CYB003 compared to matching placebo as adjunctive treatment in participants with MDD. Read Less

Background: People with TRD are often helped by electroconvulsive therapy (ECT). But ECT can affect memory and thinking. Researchers want to study a treatment called TEST that uses less electricity. Objective: To study the safety and feasibility of TEST and assess its antidepressant effects. Eligibility: Adults aged 25-64 with major depression that has not been relieved by current treatments. Design: Participants will be admitted to the NIH Clinical Center for 5 18 weeks over 2 3 treatment phases. Their medications may be adjusted. Participants will be interviewed about their depression, side effects, and other treatments they are receiving. They will complete questionnaires. They will give blood and urine samples. Their brain waves and heart rhythm will be recorded. They will take tests of memory, attention, mental functioning, and thinking. Participants will have magnetic resonance imaging (MRI) scans of the head and brain. They will lie on a table that slides in and out of the scanner. Pictures of brain chemicals will also be taken. They may complete tasks during the MRI. Participants will receive TEST and/or sham treatments. They may receive optional ECT. An intravenous catheter will be placed in an arm vein to receive general anesthesia. Two electrodes will be placed on the front of their head. An electric current will be passed from the ECT machine through the electrodes. For sham treatments, they will not receive the electric current. Their breathing, heart rate, brain function, blood pressure, and body movements will be measured. Participants will have 7 follow-up visits over 6 months. Visits can be done via telehealth. Participation will last for up to 42 weeks. Read Less

The investigators hypothesized that during the 9-week course of Engage \& Connect treatment there will be an increase in brain functions of the Positive Valence System which in turn will lead to reduction in suicidality. Read Less

The purpose of this research study is to better understand the relationship between the type of brain stimulation used and how it changes brain activity in adult military Veterans. The goal is to use this understanding to develop new, personalized brain stimulation. The investigators evaluate brain changes from different types of transcranial magnetic brain stimulation (TMS). Read Less

The main purpose of this study is to investigate the effects of ketamine on decision-making and emotion processing in a sample of individuals diagnosed with Major Depressive Disorder (MDD). Read Less

This is a Phase 2B clinical study evaluating the effectiveness and safety of SP-624 as compared to placebo in the treatment of adults with Major Depressive Disorder. Read Less