View clinical trials related to Major Depressive Disorder.
Filter by:Of the estimated 30 million Americans who suffer from Major Depressive Disorder, approximately 10% are considered treatment resistant. Deep brain stimulation (DBS) to a region of the brain called the subcallosal cingulate (SCC) is an emerging strategy for treatment resistant depression (TRD), which involves placement of electrodes in a specific region of the brain and stimulating that area with electricity. This is believed to reset the brain network responsible for symptoms and results in a significant antidepressant response. A series of open-label studies have demonstrated sustained, long-term antidepressant effects in 40-60% of patients who received this treatment. A challenge to the effective dissemination of this fledgling treatment is the absence of biomarkers (objective, measureable indications of the state of the body and brain) to guide device placement and select stimulation parameters during follow-up care. By using a DBS device called the Percept PC (Medtronic, Inc) which has the ability to both deliver stimulation to and record electrical signals directly from the brain, this study aims to identify changes in local field potentials (LFPs), specific electrical signals that are thought to represent how the brain communicates information from one region to another, to see how this relates to DBS parameter settings and patient depressive symptomatology. The goal of this study is to study LFPs before and during active DBS stimulation to identify changes that correlate with the antidepressant effects of SCC DBS. The study team will recruit 10 patients with TRD and implant them with the Percept PC system. Participants will be asked to complete short questionnaires and collect LFP data twice daily for the first year of the study, as well as have weekly in person research procedures and assessments with the study team for up to one year. These include meetings with the study psychiatrist, psychologist, symptom ratings, and movement, voice, and video recordings. A brief discontinuation experiment will be conducted after 6 months of stimulation, in which the stimulation will be turned off and patterns of LFP changes will be recorded. The entire study is expected to last about 5 years, parcellated into several study phases. All participants are required to live in the New York metropolitan area for the first several months of the study.
The purpose of this research study is to study closed-loop transcranial alternating current stimulation (tACS) to determine its effects on symptoms of depression in people with major depressive disorder.
This study aims to identify the influence of social determinants of health domains on vascular function in a low income, racial, and ethnic minority population at risk for disparities. We hypothesize that individuals of a lower social economic position and those struggling with depression are at greater risk of cardiovascular disease.
Objective: Wearable technology holds promising potential for mental health monitoring and detection. Samsung has developed an algorithm that they believe can detect signs of depression and anxiety in smartwatch users. They have used this algorithm to create a "Mindfulness Index," which is an easily understood visual index of mental health. The primary aim of the study is to evaluate the performance of Samsung's Mindfulness Index in identifying those who have received a diagnosis of Major Depressive Disorder (MDD) from a clinician-administered semi-structured diagnostic interview. Research Procedures: The target sample size is 75 individuals diagnosed with current Major Depressive Disorder and 75 healthy controls. To meet this target, the recruitment target is set at 215 participants. Participants will be assigned to the MDD condition, or the healthy control condition based on their score on the Beck Depression Inventory. Each subject will be followed for 3 months. Participants will be provided with a Samsung smartphone and Samsung smartwatch. Participants will be asked to wear the smartwatch 24 hours per day, except while charging. This smartwatch will collect data on heartrate, sleep time, and step count. During the study, each day participants will receive texts prompting a link to a "daily diary." These surveys will ask about depression and anxiety symptoms. Additionally, during the first 3 weeks of the study, participants will participate in ecological momentary assessment; texts will be sent 5 times per day prompting participants to fill out a survey about how they currently feel in that moment. These extra surveys will stop after the first 3 weeks of the study, but the daily diary surveys will continue throughout the study. Furthermore, virtual clinician visits will occur at weeks 4, 8, and 12.
The primary purpose of this study is to determine whether empagliflozin, a medication in a class known as sodium-glucose cotransporter-2 inhibitors (SGLT2) inhibitors, may reduce symptoms of depression. Since this medication helps the body make metabolites known as ketone bodies which can serve as an alternate energy source for the brain, the investigators can also test whether ketone bodies help with depressed mood.
Safety, Tolerability, pharmacokinetics and efficacy of a single administration of COMP360 in participants with recurrent Major Depressive Disorder.
Background & Rationale: Major Depressive Disorder (MDD) is a common and debilitating illness that that commonly does not respond to conventional treatments. Transcranial magnetic stimulation (TMS) and intermittent theta-burst stimulation (iTBS) are non-invasive neurostimulation treatments for depression that are Health Canada approved. These work by generating magnetic fields outside of the body to change the activity of brain cells to change how the brain works. They have a very favorable profile, with many patients experiencing improvement with minimal side effects. The investigators recently completed a study pairing iTBS with an FDA approved medication that was chosen because it might enhance iTBS improvements. This medication is called D-cycloserine, an old antibiotic that is rarely used in modern times. Years after it stopped being useful as an antibiotic, scientists recognized other properties that the molecule has, and it is some of these that make it interesting to pair with iTBS. When the investigators did so, they found that compared to iTBS with a placebo, participants who received iTBS+D-cycloserine were more likely to benefit from treatment. In this original study, all participants received a fixed dose of 100mg daily. This means that people of very different sizes could have had different drug levels, and the investigators do not know how that impacted outcomes. With this study, there will be no placebo condition because the purpose is to understand whether dosing according to weight matters. Research Question and Objectives: To describe the pharmacokinetic profile of 100mg oral D-cycloserine and weight-based oral D-cycloserine dosed 25mg/17.5kg among individuals with depression undergoing non-invasive intermittent theta-burst stimulation to the left dorsolateral prefrontal cortex (DLPFC) in Major Depressive Disorder.
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.
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.
Major depressive disorder (MDD) is highly prevalent, affecting nearly 4% of the global population. Pharmacotherapy is the frontline treatment recommended by the guideline, but it also has some limitations such as delayed onset, inadequate response, and drug resistance. Intradermal acupuncture (IA) is a method of using short indwelling needles retained under the skin to produce continuous stimulation for long-term efficacy. It has been reported that IA combination medication appears to be more valuable than medication alone in the treatment of MDD, however, there is a lack of high-quality clinical evidence.While several studies have proposed that manual or electroacupuncture can improve MDD symptoms by modulating brain networks, the cerebral mechanism of IA as superficial acupuncture for MDD has not been reported. Hence, investigators designed a multicentre randomized controlled trial to assess the clinical efficacy and safety of IA for MDD and preliminarily explore the potential therapeutic mechanisms for IA by functional magnetic resonance imaging (fMRI) .