View clinical trials related to Depressive Disorder, Major.
Filter by:Selective serotonin reuptake inhibitors (SSRIs) raise serotonin (5-HT) in the synaptic cleft and are the current first line of pharmacological antidepressive treatment. Yet, there is a missing link between this first molecular step in their mechanism of action and observed clinical improvement. We have determined to establish a framework combining genuine molecular and functional imaging, i.e. hybrid pharmaco-PET/MR imaging, of the human serotonergic system in order to predict antidepressant treatment response. Objectives: 1. To predict antidepressant treatment response from data obtained using hybrid PET/MR with acute pharmacological challenge. 2. To discriminate healthy from depressed subjects using this paradigm. 3. To establish models connecting regional changes in occupancy of serotonin transporters (5-HTT) following citalopram infusion, with changes in brain activation and connectivity of major resting-state hub networks. Design: Randomized, double-blind, placebo-controlled, cross-over mono-center study. Materials and methods: 40 major depressed (MDD) and 40 healthy subjects will undergo 2 PET/MR scans on a 3T SIEMENS mMR Biograph scanner: 1. challenge with citalopram 8mg 2. placebo (saline). After structural imaging, functional MRI will be continuously acquired. [11C]DASB will be applied using a bolus + constant infusion paradigm to probe 5-HTT binding potentials and monitor 5-HTT occupancy with drug challenge, applied after 70min, in a single session. Scanning will be terminated 80min after challenge. MDD patients will receive subsequent escitalopram treatment with repeated evaluation of response for 3 months.
Evaluating the efficacy of vortioxetine 10 mg/day and 20 mg/day versus placebo on depressive symptoms in adolescents (age ≥12 and ≤17 years) with a DSM-5™ (Diagnostic and Statistical Manual of Mental Disorders, 5th edition) diagnosis of Major depressive disorder (MDD).
Investigation of the efficacy and safety of a new potential treatment of Major depressive disorder (MDD) in paediatric participants (age 7 to 11 years).
The purpose of this study is to determine the clinical efficacy of augmenting cognitive-behavioral therapy with real-time functional magnetic resonance imaging neurofeedback (rtfMRI-nf) training to increase the amygdala's response to positive autobiographical memories.
Bupropion is used in psychological disorder mainly in major depressive disorder (MDD). In China, buproprion Immediate Release (IR) and Sustained Release (SR) tablet have been in market for the treatment of MDD. Bupropion Hydrochloride (HCl) Extended Release (XL) tablets formulation is proposed for marketing approval in China for same indication. Therefore, a pharmacokinetic study is planned to be conducted in Chinese subjects. It is an open label, single-centre and single cycle study to evaluate the pharmacokinetics, safety and tolerability of 150 milligram (mg) and 300 mg following single and repeated daily doses. Approximately 16 males and females Chinese healthy subjects will be enrolled into the study to get 12 completed subjects.
The study will consist of a screening period and a randomized treatment. Approximately 220 subjects who meet eligibility during the screening period will be randomized to initiate a 12-week, double-blind treatment with NSI-189 80 milligrams/day (provided as 40 milligrams twice per day), NSI-189 40 milligrams once a day, or placebo.
development of skin adhesive patches for the monitoring and prediction of mental disorders
Major depressive disorder (MDD) is a highly prevalent and disabling disorder associated with persistent low mood, loss of the capacity to experience pleasure (i.e. anhedonia), reduced social functioning, and impaired quality of life. MDD is estimated to affect approximately 2% of Canadian women and 1% of Canadian men at any point in time. The World Health Organization affirms that depression is the leading cause of disability worldwide, with increasing global economic impact. Standard treatments for depression include basic psychosocial support combined with antidepressant medication or psychotherapy. It has been observed, however, that only 50% of individuals respond to psychological treatment, and only 30-40% of patients achieve full remission after initial treatment with antidepressants. Music- and sound-related therapies have the potential to serve as adjuncts to, or facilitators of, medication. In this study we will examine the effectiveness of a new therapeutic tool, known as Rhythmic Sensory Stimulation, as an adjunctive treatment for Major Depressive Disorder. Rhythmic Sensory Stimulation is a non-invasive brain stimulation technique that uses periodic pulses of light, sound, or tactile stimulus, to induce changes in the patterns of brain activity. Participants in this study will undertake 30 minutes of daily music intervention self-administered at home, for 5 days per week, for a total of 5 weeks. We will assess depression symptoms, sleep quality, quality of life, and brain activity pre- and post-treatment. The results of the present study will help to better understand the effectiveness of Rhythmic Sensory Stimulation to the treatment of mood disorders, and contribute to the development of future studies to investigate the neural driving effects of therapies based on Rhythmic Sensory Stimulation.
To study the impact of genetic and environmental factors on high-level cognition associated neural circuits among healthy young Chinese Han subjects.
The proposed work aims to examine the neural changes associated with fast-acting antidepressant treatments in order to develop imaging-based biomarkers of treatment response for depression.