View clinical trials related to Treatment Resistant Depression.
Filter by:Ketamine's efficacy as an antidepressant is now well established yet the mechanisms underlying its antidepressant effect are yet to be fully described. Work in the animal literature and research in humans is suggestive of specific effects on anhedonia and memory reconsolidation. In this study the investigators will further explore the effects of ketamine on learning and memory as well as measuring the associated changes at neural level in a sample of healthy volunteers. Participants will be assigned to receive ketamine or placebo and complete a set of tasks which will allow the investigators to quantify the effect of ketamine on learning about reward and punishment and memory for learned reward associations 24 hours after ketamine infusion. This study will help the investigators to understand the basis of ketamine's antidepressant effects and aid the development of new treatments for depression.
The study is looking at assessing monoamine oxidase B (MAO-B) occupancy in depressed patients before and after medication treatment using positron emission tomography (PET) scan.
Background: Major depressive disorder (MDD) is a common, chronic mental illness. It can take weeks to months for antidepressants to work. Researchers want to test a new drug that might act more rapidly. Objective: To see if TS-161 will improve symptoms of depression in people with MDD. Eligibility: Adults ages 18-65 with MDD without psychotic features. Design: Participants will be screened under a separate protocol. They will have blood tests. They will complete surveys about their symptoms. Participants will have an inpatient visit at NIH. Participation may last 12-16 weeks. During the first phase of the study, participants will be tapered off their psychiatric medicines. For 2 weeks they will have a drug-free period. During Phase II participants will take TS-161 or placebo. They will take TS-161 for 3 weeks and placebo for 3 weeks. In between the 3-week time period, they will have 2-3 weeks where they will be drug free. Participants will also have the following tests during this time: - Interviews - Physical exams - Psychological tests and surveys about their symptoms - Blood draws and urine samples - They may complete tests of mood and thinking - MRI (Magnetic resonance imaging): Participants will lie in a machine that takes pictures of their brain. - Functional MRIs: They will perform tasks displayed on a computer screen inside the MRI scanner - MEG (magnetoencephalography): Participants will lie down and do tasks of memory, attention, and thinking. A cone lowered on their head will record brain activity. - Electrocardiograms to record the heart s electrical activity. Electrodes will be placed on the skin....
The primary goals of this proof of concept clinical trial are to determine the effectiveness, safety and tolerability of oral FMT in adults with Treatment Resistant Depression (TRD).
This study will determine the safety and efficacy of home administered tDCS in adults with unipolar depression. The device used to administer tDCS will be the Soterix Medical 1X1 mini-CT. 32 tDCS sessions of 30 minutes each will be delivered over 10 weeks.
The objective of this study is to collect both active and passive data using a wearable, multi-sensor device (Verily Study Watch) and phone application (Mood App) which aims to capture mental health status, in subjects participating in the RECOVER clinical trial (A Prospective, Multi-center, Randomized Controlled Blinded Trial Demonstrating the Safety and Effectiveness of VNS Therapy® System as Adjunctive Therapy Versus a No Stimulation Control in Subjects With Treatment-Resistant Depression).
This study evaluates an accelerated schedule of theta-burst stimulation using a transcranial magnetic stimulation device for treatment-resistant depression. In a double-blind, randomized, sham-controlled fashion, half the participants will receive accelerated theta-burst stimulation while half will receive sham treatment.
The Safety and Efficacy of Psilocybin as an Adjunctive Therapy in Participants with Treatment-Resistant Depression
With this study, the investigators will address the following scientific aims: 1. Demonstrate the antidepressant effects of CBD in human adults with treatment refractory MDD as measured by standard rating scales. 2. Confirm CBD's safety profile in human adult patients with MDD.
This is a feasibility study, to investigate a new treatment option for major depressive disorders by performing a Stellate Ganglion Block (SGB). A SGB is an injection of local anesthetic into the sympathetic nervous system (peripheral nervous system) located in the lower part of the neck, to relieve pain in the head, neck, upper arm, and upper chest.