Active clinical trials for "Depressive Disorder, Major"

This study will explore the mechanisms of change that are activated when individuals receive a treatment that targets their weakness and the mechanisms activated when the treatment capitalize on their strength. Patients will be assigned to one of two types of psychotherapies in treating people with a major depression disorder, expressive-supportive vs. emotion-focused treatment. Their ability to benefit from treatment based on their pre-treatment levels of insight and emotional processing will be examined. This is a four-month protocol, with a 2 year follow up period.

Patients with major depressive disorder (MDD) exhibit increased levels of rumination (i.e. repetitive thinking and focus on negative mood states) which have been found to increase the risk of depressive relapse. The ability to reduce rumination levels among these patients is greatly needed. Rumination is known to be associated with the default mode network (DMN) region activity. Implementing the Dependency Network Analysis (DEPNA), a recently developed method by the research team to quantify the connectivity influence of network nodes, found that rumination was significantly associated with lower connectivity influence of the left medial orbitofrontal cortex (MOFC) on the right precuneus, both key regions within the DMN. This study implements the first real-time fMRI neurofeedback (Rt-fMRI-NF) network-based protocol for up-regulation of the MOFC influence on the precuneus in patients with MDD to reduce rumination levels. This will allow for more accurate explicit brain connections modulation than the standard single brain region activity; creating a larger opportunity for target clinical neuromodulation treatment in individuals with MDD.

The prevalence of major depressive disorder (MDD) is ~5.0%, and rates of co-occurring SUDs in these patients approach 40-50%. Specifically, rates of co-morbid cannabis use disorder (CUD) in patients with MDD are elevated 2-3 fold compared to 2.9% in the general population, and is associated with poorer treatment outcomes and impaired cognitive and psychosocial functioning in comparison to MDD patients without CUD. Most studies of cannabis use in MDD are cross-sectional in design, and therefore causal relationships are unclear. This study investigates the effects of cannabis abstinence over a 28-day period in patients with MDD with co-occurring CUD using a randomized controlled design, namely contingent reinforcement.

Most of the current antidepressants for major depressive disorder (MDD) are based upon the monoamine hypothesis which cannot fully explain the etiology of depression. NMDA hypofunction has been implicated in the pathophysiology of depression. Therefore, this study will examine the efficacy and safety as well as cognitive function improvement of an NMDA enhancer (NMDAE) in the treatment of MDD in the adults.

The purpose of this research is to examine the effects of two different exercise training regimens for managing depression and improving other health indicators among persons with multiple sclerosis (MS). The project will enroll persons with MS and major depressive disorder (MDD) between 18 and 64 years of age. The investigators will enroll a total of 146 participants. This is a Phase-II trial that compares the efficacy of an exercise training program (POWER-MS) compared with a stretching program (FLEX-MS) for immediate and sustained reductions in the severity of depression among persons with MS who have MDD.

Antidepressant-like effects of sildenafil to its ability to modulate transduction pathways responsible for neuroplasticity. Treatment with sildenafil was shown to be PKG-dependent and lead to increased expression of cGMP, pCREB, BDNF and VGF in the hippocampus and prefrontal cortex (PFC), brain areas relevant to mood disorders pathophysiology. Sildenafil produces antidepressant-like effects by inhibiting oxidative stress in the hippocampus and by decreasing the levels of IL-1β in the hippocampus and striatum.

This study aims to determine whether treatment of CMV positive (CMV+) individuals with major depressive disorder (MDD) with valganciclovir (VGCV) alters neural circuitry, reduces inflammation, and improves depressive behavior and symptoms to a greater extent than placebo. In this double-blind, randomized placebo-controlled, parallel group trial, 24 individuals with a Quick Inventory of Depressive Symptomatology-Self Report (QIDS-SR) scale score ≥ 14 will be enrolled to participate in an 8-week treatment study. Participants will be randomized with a 1-1 ratio to receive 900 milligrams (mg) VGCV or placebo to be taken orally once per day. Participants will complete a 2-hour pre-screen, a baseline blood-draw, clinical evaluation, and MRI scan (visit 2), a clinical evaluation, blood draw, and MRI scan at week 4 (visit 6), and a clinical evaluation, blood draw, and MRI scan at week 8 (visit 10). Weekly telephonic visits to assess depressive symptoms and side effects will held between the in-person assessments.

The study team will conduct a Multisite Randomized Controlled Trial to evaluate the advantages and disadvantages of two approaches for quitting smoking among people with serious mental illness (SMI). The study will compare a novel app tailored to people with SMI, Quit on the Go, to a standard of care smoking cessation intervention. We will test the effectiveness of the Quit on the Go app, an intervention that has demonstrated feasibility and acceptability in the target population, as a tool for smoking cessation in people with SMI. Participants with SMI will be recruited across 2 sites (Duke University and Univ. at Buffalo).

To explore whether intravenous ketamine followed by buprenorphine produces more rapid and sustained anti-suicidal effects than ketamine followed by placebo, investigators will conduct a single study that will take approximately 2.5 years to complete. 60 subjects (60 infusions) or approximately 24 infusions per year.

This is a randomized, double-blind, placebo-controlled to evaluate the potential role of nutrients supplementation (LF chocolate /Erinacine A-enriched Hericium Erinaceus chocolate) on the therapeutic efficacy of antidepressants in major depressive disorder(MDD). 120 subjects who meet all the inclusion and exclusion criteria will be randomized into three categories, receiving 3 pieces of supplement nutrients-added or plain chocolates per day for a period of 24 weeks in total. The three categories are as follow: LF chocolate Erinacine A-enriched Hericium Erinaceus chocolate Plain chocolate without any supplementary nutrients added (placebo group) These MDD patients will continue their antidepressant regimen throughout the study. Symptom rating, blood samples for antidepressant-related/depressive disorder-related genome profiles identification, as well as for biomarkers assessment for metabolic indices, questionnaires and tests for psychosocial variables identification and patient's cognitive and social cognitive function or performance determination, will be carried out before and at certain time points within the 24-week tracking period. Patient's fecal samples will be acquired to recognize and to distinguish the alterations of these MDD patients microbiota profiles over the 24-week period.