View clinical trials related to Major Depressive Disorder.
Filter by:The main aim of this trial was to investigate whether patients suffering from treatment refractory- Major Depressive Disorder (MDD) can benefit from DBS (Deep Brain Stimulation) in the brain areas known as inferior thalamic peduncle (ITP) and/or Capsula Interna/Bed nucleus of the stria terminalis (CI/BNST)
The investigators have shown that decoupling of brain networks when feeling guilty is the first potential functional neuroimaging biomarker of risk of major depression. It remains detectable on remission of symptoms (Green et al., 2012). Decoupling of neural networks was found while people felt guilty during functional magnetic resonance imaging (fMRI) relative to feeling indignation. Guilt-selective brain decoupling is therefore an excellent target for interventions to reduce the largely increased risk of recurrent episodes in people who have had one episode but are currently remitted. To our knowledge, however, there is no proof-of-concept study showing that self-blame-selective decoupling on fMRI can be detected and fed back to the participants after a short temporal delay in a real-time fMRI setting and whether coupling can be increased through neurofeedback training. This project aims at developing the first fMRI neurofeedback system to treat self-blame-selective neural decoupling and to test its feasibility in people with major depressive disorder currently remitted from symptoms.
Studies of the neural mechanisms underlying placebo effects in antidepressant clinical trials largely have been limited to demonstrating objective differences in brain activity between responders and non-responders to placebo. This 8 week Placebo-controlled and Open groups study employs a novel antidepressant trial design with integrated functional magnetic resonance imaging (fMRI) to manipulate patient expectancy and examine its neural mediators.
This study is to compare the pharmacokinetics of FK949E low dose tablets and FK949E high dose tablets in non-elderly patients with major depressive disorder. The safety of FK949E in the population was also evaluated.
In this trial, fifty participants with current major depressive disorder who are not receiving an antidepressant medication and fifty healthy controls will complete questionnaires and computerized tasks to assess their decision-making styles. There will be three visits for depressed patients and two for healthy controls (the first and third visits). The first visit will involve interviews and questionnaires to assess the participant's level of depression, medical history and quality of life. Participants will then complete the decision-making tasks, and will earn between $5-40 based on their choices, in order to make the decisions on the computer tasks financially meaningful. At the completion of this visit, depressed patients will be prescribed an FDA-approved antidepressant, chosen in consultation with the treating psychiatrist. Patients will be responsible for paying for the prescription themselves. After two weeks on the medication, the patient will be seen for a follow-up visit to ensure tolerability of the medicine. After six weeks on the medicine, patients and healthy controls will return to repeat the questionnaires and the computer based decision-making tasks, and will again earn between $5-40 based on their performance.
The long-term goal of this line of research is to determine if decreased vascular reactivity and frontal hypoperfusion is associated with poor response antidepressants. Such perfusion deficits could contribute to antidepressant nonresponse as they would hinder improvements in dorsal system metabolism seen with antidepressant treatment. The objective of the current proposal is to determine if decreased vascular reactivity and frontal hypoperfusion in depressed elders predicts and persists with antidepressant nonremission. The investigators will pursue the primary aim testing the hypothesis that decreased reactivity and hypoperfusion, specifically in the dorsolateral prefrontal cortex and dorsal anterior cingulate cortex, predict antidepressant nonremission. The investigators will enroll 40 depressed elders who will complete clinical, cognitive, and MRI assessments before and after a 12-week open-label antidepressant trial of sertraline.
Major depressive disorder (MDD) is a common psychiatric condition, mostly treated with antidepressant drugs, which are limited for issues such as refractoriness and adverse effects. In this context, the investigators investigate a non-pharmacological treatment known as transcranial direct current stimulation (tDCS). To prove that tDCS is similarly effective than antidepressants would have a tremendous impact in clinical psychiatry, since tDCS is virtually absent of adverse effects. Its ease of use, portability and low price are also interesting characteristics for using in primary and secondary health care. Thus, our aim is to compare tDCS against a fully dosed, effective antidepressant. The study will be a non-inferiority, randomized, double-blinded, placebo-controlled, three-arm trial comparing active tDCS/placebo pill, sham tDCS/escitalopram 20mg/day and sham tDCS/placebo pill. Our primary aim is to show that tDCS is not inferior to escitalopram 20mg/day with a noninferiority margin of at least 50% of the escitalopram-placebo effect.
Transcranial electrical stimulation (TES) techniques offer a novel treatment approach for depression and have shown promising efficacy. However, there is no published data to date on their effectiveness as a maintenance treatment. This study will investigate ways of using TES as a maintenance treatment to prevent relapse in depression.
Interferon-alpha (IFN-α) is an efficacious treatment for Hepatitis C (HPC); however, IFN-α treatment results in a significant increase in depressive symptoms. The aim of this project is to compare two health interventions (exercise vs. health education) to prevent depression in HPC patients receiving IFN-α. Participants will be recruited from the Clinical Center for Liver Diseases at UT-Southwestern and randomized to 26 weeks of either: aerobic exercise or a health education control group.
This trial will compare a novel form of rTMS, intermittent Theta Burst Stimulation to the standard conventional high frequency left sided stimulation protocol. The Left dorsolateral prefrontal cortex will be the site of stimulation in both treatment conditions. The site of stimulation will be targeted using MRI co-registration. The study seeks to determine if the two treatment protocols have similar effectiveness in treating major depression.