View clinical trials related to Major Depressive Disorder.
Filter by:An observational-comparative study, without interfering with the treatment, based on an operationalized interview.
The purpose of this study is to evaluate the efficacy of psilocybin on the symptom of anhedonia in individuals with treatment-resistant major depressive disorder.
The aim of this clinical trial is to evaluate the effects of a Resilience and Stress Management Intervention Program (RASMUS) compared with yoga on stress perception, coping strategies, depressive symptoms, anxiety, resilience and quality of life in people diagnosed with major depressive disorder (MDD) in the short and long term. In addition to psychological factors, biological parameters will be examined to define biomarkers involved in stress response. In the optional neuroimaging part, the effects of the planned interventions on the structure, metabolism and function of the brain will be investigated. The epigenetic part, which is also optional, will examine the effects of the planned interventions on the histone modifications.
The goal of this clinical trial is to examine the use of sedative ketamine to treat depression and post-traumatic stress disorder (PTSD) in Veterans with mild to moderate traumatic brain injury (TBI). The main questions it aims to answer are: - Efficacy of ketamine to reduce symptoms of depression and/or PTSD - Safety of ketamine to treat depression and/or PTSD in TBI Participants will be randomly assigned to receive either ketamine or midazolam (active placebo) twice a week for 3 weeks. During participation, subjects will be interviewed, have lab tests, and complete rating scales, and questionnaires.
This is a randomized, double-blind, active-controlled, multi-center study to evaluate the efficacy of AXS-05, compared to bupropion, in preventing the relapse of depressive symptoms in subjects with major depressive disorder (MDD) who have responded to treatment with AXS-05.
This project is designed to examine the role of the subgenual anterior cingulate cortex (sgACC) in anhedonia and anxiety in humans with depression, as well as the acute and sustained effects of ketamine on agACC activation and depression symptoms.
This study will apply a comprehensive tools that integrates neuroimaging, psychological evaluation, and sleep monitoring through 18F-MPPF PET/MR, neuropsychological tests, and polysomnography (PSG) to explore the neurobiological mechanisms underlying transcranial alternating current stimulation (tACS) for depressive disorders, mainly focusing on the serotonergic system revealed by Serotonin-1A (5-HT1A) receptor.
Major depressive disorder (MDD) is a chronic mental illness, with 60% lifetime risk of recurrence after the first MDD episode. Despite available treatment options for MDD, only about half to two-thirds of patients respond to first-line antidepressant treatment, and only 30% to 45% of patients achieve remission. Scholars assume that this low remission rate and high rate of treatment resistance are due to the polyetiological nature of the disease, the heterogeneity of the clinical picture of depression, and the lack of biomarkers to stratify MDD subtypes. The aetiology of MDD, although researched extensively, remains unclear. None of the known mechanisms alone explains the pathogenesis of depression, meaning that the interplay of several factors contributes to the development of MDD. Accumulated scientific evidence has supported the importance of the immune system in the etiopathogenesis of MDD. Until now, the cause of the low-grade inflammation observed in this subgroup of MDD patients has been unclear. In the proposed study, the investigators will test a new hypothesis of the immune theory of the development of MDD: the endotoxin hypothesis of neurodegeneration. This hypothesis states that endotoxin, causes or contributes to neurodegeneration. Blood plasma levels of LPS are normally low but are elevated during infections, gut inflammation, gum disease, and neurodegenerative diseases. Dysbiosis may promote increased intestinal permeability ("leaky gut"), which leads to bacterial translocation across the intestinal barrier and into the circulation, thus forming of LPS and LPS-binding protein complex, which triggers the secretion of cytokines. Data suggest that LPS-induced peripheral inflammation can activate neuroinflammation. However, it is not known whether a low-level persistent presence of LPS in the circulatory system can cause low-grade chronic neuroinflammation leading to neurodegeneration and/or symptoms of MDD. Based on existing preclinical and clinical research data, the investigators hypothesise that an increase in blood plasma endotoxin and peripheral cytokines induce BBB dysfunction, neuroinflammation and neurodegenerative processes in specific etiologically relevant structures of the brain and cause clinical manifestation of depressive symptoms and cognitive damage. In this study the investigators are also going to investigate the effects of single nucleotide polymorphisms of four genes in relation to blood plasma endotoxin and peripheral cytokines concentrations and clinical manifestation of MDD.
The study aims to examine inter-brain synchrony between patients and therapists over the course of psychotherapy. Twenty patients will undergo a 16-session course of psychotherapy for major depressive disorder. The protocol used will be supportive-expressive psychotherapy (see Luborsky et al., 1995). Participants will also undergo Hamilton depression interviews a week before treatment, before every session and a week after treatment. functional near-infrared spectroscopy (fNIRS) imaging will be used to record brain activity during every other session (sessions 1, 3, 5, 7, 9, 11, 13, 15) as well as during interviews at baseline, on session 8 and at followup. Saliva samples will be collected during the same sessions to measure hormone and cytokine levels during the same sessions. Participants completed questionnaires before and after the study, and before and after each session. The researchers hypothesized that synchrony will gradually increase over the psychotherapy sessions, and that synchrony in the pre-treatment interview will be lower than in the post-treatment interview.
Conduct a pilot, single-center, randomized controlled 2-arm study aimed to evaluate the impact of an in-depth 3rd wave CBT program targeting correct self-identification (3rd level of 3rd wave CBT), compared to a control group receiving an acceptance and commitment therapy (ACT; (1st level of 3rd wave CBT, a well-known psychotherapy). Main judgment criteria : Therapeutic response (reduction ≥ 50% between pre and immediate post-treatment), and rate of relapse at 6 months post-therapy. Secondary objectives: Evaluate psychological processes involved in the reduction of moral pain, diligence, ruminations, suicidal ideas, self-concept and alterations in functioning (mental and social), psychological skills.