View clinical trials related to Depressive Disorder, Major.
Filter by:It is estimated that approximately 30% of child and adolescents manifest subthreshold depression, which can further develop into major depression with as high as 25%-50% within one year. The main aim of this trial is to investigate the effect of long-term exercise on preventing major depression and depressive symptoms in young people (aged 10-17 years old). Other aims include the underlying mechanisms of how aerobic exercise works and predictors for treatment response.
Major depressive disorder (MDD) affects an estimated 350 million people worldwide and is a leading contributor to global disease burden. Commonly used monoamine reuptake-inhibiting treatments for depression are suboptimal, resulting in only 30% of patients achieving remission. This may be because monoamine dysfunction is not the primary pathophysiology in all MDD patients. One avenue for the development of novel MDD treatments is through anti-inflammatory drugs; MDD is linked to a pro-inflammatory phenotype characterized by microglial activation, leading to the release of pro-inflammatory cytokines and upregulation of cellular markers including cyclooxygenase-2 (COX-2) and translocator protein (TSPO; a protein located on the outer membrane of microglia). Relevant to this proposal, TSPO can serve as an in vivo marker of neuroinflammation using the newly developed positron emission tomography (PET) tracer for TSPO, [18F]FEPPA. In support of this, a recent [18F]FEPPA PET study found that MDD patients in a current major depressive episode (MDE) had significantly higher TSPO binding in the prefrontal cortex (PFC), anterior cingulate cortex (ACC) and insula, relative to healthy controls. The prefrontal cortex and ACC are both implicated in mood regulation whereas the insula is involved in interoceptive signaling, which is known to be abnormal in MDD. Celecoxib, a selective COX-2 nonsteroidal anti-inflammatory drug (NSAID), is a promising new treatment for neuroinflammation in MDD. Clinical studies have observed that, in a subset of depressed patients, celecoxib treatment reduced depression severity as assessed by the Hamilton Depression Rating Scale (HDRS). While these findings demonstrate that celecoxib reduces symptom severity, PET imaging technology is critical for understanding how celecoxib affects the underlying pathophysiology of depression. Here, the team will investigate neuroinflammation as an underlying pathology in depression and test whether neuroinflammation is reduced by celecoxib in MDD patients. Specifically, in the proposed pilot study, MDD patients in a current MDE will receive [18F]FEPPA PET scans prior to and following 8 weeks of treatment with 400mg/day of celecoxib, with HDRS scores obtained at each time point. The investigators hypothesize that following celecoxib treatment, patients will show a significant reduction in neuroinflammation in the PFC, ACC and insula, which will correlate positively with the reduction in depressive symptoms, as measured by the HDRS. The proposed study will use novel imaging technology, [18F]FEPPA PET, to measure the effects of celecoxib on neuroinflammation in MDD patients. Our results will help to 1) identify neuroinflammation as an underlying pathology in MDD and 2) test whether reduction of inflammation is the mechanism of action of celecoxib. As such, the results of this study will aid in the development of targeted clinical treatments to improve remission rates in MDD patients.
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).
The investigators propose a study of telehealth supervised, caregiver-delivered, home-based transcranial direct current stimulation (tDCS) for antidepressant treatment of patients with an acute depressive episode.
This research is being done to determine if computerized administered cognitive fitness activities will improve thinking and depression in older depressed adults who are being treated with antidepressants. The investigators are also interested in whether participating in the treatment will result in changes to brain activity measured with magnetic resonance imaging (MRI).
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.
This trial is a randomized, double blind, controlled pilot study that will compare bilateral theta burst stimulation (TBS) and sham treatment for patients with opioid use disorder (OUD) and Major Depressive Disorder (MDD) experiencing suicidality.
This trial aims to test the feasibility of Magnetic Seizure Therapy (MST) for Depression in patients diagnosed with Parkinson's Disease.
The aim is to evaluate short term and longer term treatment effects of internet-delivered cognitive behavioral therapy compared to treatment as usual for college students with anxiety and/or depression in low-middle income countries of Latin America.
The purpose of this study is to assess safety and efficacy of nodal transcranial direct current stimulation in pediatric and teenager population with major depressive disorder in the COVID-19 pandemic.