Major Depressive Disorder Clinical Trials

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

The goal of this study is to evaluate whether rtfMRI-nf training to increase the amygdala response to positive memories may serve as a stand-alone intervention for major depressive disorder 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

This open-label functional Magnetic Resonance Imaging (fMRI) study will assess the effects of a single dose of psilocybin on rumination and the neural correlates of rumination in individuals with major depressive disorder. Read Less

Suicide rates among Veterans with Serious Mental Illness (SMI) are intractably high, representing a serious public health concern and a critical target for interventions. Yet, at present available treatments offer modest benefits. Thus, there remains an urgent need to identify novel approaches to address suicide risk in this population. Previous reports have linked suicide risk with poor social functioning. Emerging evidence from basic affective neuroscience research has indicated that effective social functioning is contingent on intact emotion awareness. Consistent with these findings, individuals with SMI at risk of suicide display social functioning difficulties along with poor emotion awareness (i.e., alexithymia). Employing a proof-of-concept design, the aim of the present study is to test the feasibility and acceptability of a novel, blended psychoeducation and digital mHealth (mobile health) intervention with smartphones designed to target alexithymia and poor social functioning to reduce suicide risk in Veterans with SMI. Read Less

The purpose of this study is to advance a non-pharmacologic suicide preventive intervention with wide dissemination potential as an innovative high-yield solution to reduce suicide rates. The investigators aim to achieve this with this study of Brain Emotion Circuitry Self-Monitoring and Regulation Therapy for Daily Rhythms (BE-SMART-DR), that provides self-directed strategies to regularize sleep and other DRs to reduce short-term suicide risk that can be used lifelong to potentially also reduce long-term suicide risk. 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

This study is a pilot open label crossover trial to assess the feasibility and acceptability of reducing ultra- processed foods (UPF) in a personalized manner from the diets of patients with major depressive disorder who eat a large percentage of UPF. Read Less

The goal of this clinical trial is to learn how hormonal changes over the menstrual cycle affect mood symptoms in reproductive-aged women with depression that worsens during the premenstrual period. The main questions it aims to answer are: --How do fluctuations in estradiol and progesterone across the menstrual cycle affect the ability to experience pleasure and the neural sensitivity to reward in hormone-sensitive, depressed women? And consequently, how does stabilizing the luteal phase decline in estrogen and progesterone (using estradiol patches and progesterone pills) affect these changes? Participants will: * Receive hormones followed by placebo, or vice versa, for a total of four weeks across three menstrual cycles * Complete daily mood ratings * Collect home urine samples for hormone testing * Complete five biobehavioral testing sessions during which neural responses are recorded (via electroencephalography, or EEG) during an acute stress task and computer tasks Read Less