Major Depressive Disorder Clinical Trials

The purpose of this study is to test the hypothesis that the anti-depressant and anti-suicidal effects of the N-methyl-D-aspartate receptor (NMDAR) antagonist Ketamine is critically dependent on stimulation of Alpha-Amino-3-Hydroxy-5-Methyl-4-Isoxazole Propionic Acid receptors (AMPAR). Read Less

The purpose of this study is to determine whether psilocybin, a hallucinogenic drug, is effective in reducing depressive symptoms and amount of drinking in patients with co-occurring Major Depressive Disorder (MDD) and Alcohol Use Disorder (AUD). Read Less

This study aims to evaluate the feasibility, safety, and tolerability of an innovative approach to treating Major Depressive Disorder (MDD), particularly in cases where patients have not responded well to traditional therapies. Specifically, the objective is to evaluate the antidepressant effects of a Dose-Optimized and Spaced Transcranial Direct Current Stimulation (DOS-tDCS) protocol in participants with treatment-resistant depression (TRD) compared to spaced tDCS only and sham tDCS in a 3-arm randomized controlled trial (RCT). The proposed method involves applying low-intensity electrical currents through the scalp in a manner that is both more intense and more frequently spaced than standard treatments. This approach is hypothesized to lead to a significant reduction in depressive symptoms. Participants in the study will be randomly assigned to one of three groups: the experimental group receiving the DOS-tDCS treatment, a group receiving spaced tDCS only, or a control group receiving a sham (placebo) treatment. Outcomes will be measured over a period of six weeks. The study's goal is to offer a potentially more accessible and effective treatment option for individuals who have not benefited from existing MDD therapies. Read Less

This is a single-site open-label clinical trial of the Stanford Accelerated Intermittent Neuromodulation Therapy (SAINT®) protocol. The goal of this clinical trial is to learn if a new form of transcranial magnetic stimulation (TMS)-known generally as accelerated intermittent theta burst stimulation (aiTBS) and specifically as SAINT®-is effective as a first-line therapy in treating adolescents aged 14-19 years-old in their first episode of depression who have not undergone a full course of depression treatment prior to starting the trial and who remain antidepressant-free throughout the trial. The main questions this trial aims to answer are: * Does SAINT® relieve symptoms of depression as a first-line therapy in adolescents? * Is SAINT® a feasible option as a first-line treatment for adolescent depression? Researchers will measure the depression symptoms in adolescent participants before and after SAINT®. Parents of the adolescent participant will also participate in the study providing information about their experience and preference for TMS as a first-line treatment. Adolescent participants will: * Remain antidepressant-free throughout the study period of 6-7 weeks. * Receive an MRI of their head for precision targeting * Receive 5 days of aiTBS (SAINT®) Read Less

To evaluate the acute and sustained antidepressant effects of nitrous oxide in people with major depressive disorder; and further evaluate these effects by identifying the optimal dose and regimen to guide current practice, and to plan a future large pragmatic trial. Read Less

The goal of this clinical trial is to learn about how a digital training platform can enhance implementation and effectiveness of a validated mHealth system, called FOCUS, in people with serious mental illness. The main question this research aims to answer is whether patients obtain similar outcomes to previous FOCUS studies when using FOCUS with clinicians trained on a newly developed digital training platform. Participants will be asked to use the FOCUS smartphone application and receive mobile health coaching from clinicians who have been trained using the digital training platform. Read Less

Multiple site studies with the recruitment of other sub-investigators and sites. It's sobering to consider how chronic illness makes us more vulnerable to suicidal thoughts and behavior. However, the existence of multiple risk factors also means that there are numerous ways to intervene. Addressing and improving even one risk area will reverberate and improve other areas and the quality of life. RIVER Foundation is completing a 500-participant pilot study researching the safety of oral and nasal ketamine at home with no therapy. The pilot study examined three psychological scales: P.H.Q. 9, G.A.D. 7, and PCL5 scores. The interim report will be available in Nov 2023 with a final report in June 2024. The lack of knowledge for the average medical practitioner makes ketamine a boutique medicine, often costly and unaffordable to those in need. Yet daily medical providers are eliminating ketamine as a choice in the treatment of chronic conditions. The pilot study demonstrated the who, and where. The who, was adults with a chronic condition. The pilot study demonstrated the majority of those who could use ketamine are not receiving it due to cost. According to the 500-participant study, ketamine is safe and effective for at-home use thus demonstrating the where (at home with no supervision). Read Less

The goal of this research is to investigate whether a peer-delivered illness self-management program called Taking Action can help college students with serious mental illnesses. Participants will be randomly assigned to either the experimental condition (Taking Action) or the control condition (information only). Participants in the experimental condition will attend five 2.5-hour Taking Action sessions. Participants will complete three interviews (baseline, post-intervention, and follow-up) to assess how well the program works, is liked, and benefits students clinically and academically. The investigators seek to test the following hypotheses: Compared to controls, students who do the Taking Action program will report greater improvements in mental health self-management attitudes, skills, and behaviors and will report greater improvements in mental health symptoms and recovery, and better academic outcomes. Read Less

This study will identify the sex-dependent impact of expiratory-gated transcutaneous vagus nerve stimulation (tVNS) on the modulation of the stress response circuitry and associated physiology in major depressive disorder (MDD). We will evaluate a sample of 80 adults with recurrent MDD randomized to receive active or sham expiratory-gated tVNS during a functional magnetic resonance imaging (fMRI) session, with simultaneous mood and physiological assessments. We hypothesize that expiratory-gated tVNS will effectively modulate, in a sex-dependent manner, specific brainstem-cortical pathways of the stress circuitry and attenuate physiological deficits in MDD. Read Less

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. Read Less

This is a multicenter, randomized, double-blind, placebo-controlled parallel-group, fixed-dose study in patients with a primary diagnosis of MDD according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) who have an inadequate response to ongoing ADT. Read Less

The goal of this proposal is to examine the influence of feedback timing on learning and brain function in individuals with moderate-to-severe traumatic brain injury (TBI), with and without depression. Read Less