View clinical trials related to Depressive Disorder, Major.
Filter by:Depressive disorder is known as being accompanied with the activation of immune system which could lead to a series of changes including the neuron apoptosis, synapses transmission inhibition and emotional symptoms. The activation of protein kinase C (PKC) can reverse the immune/inflammatory process and restore the neuroplasticity and neurotransmitters transmission. Based on our finding that patients with major depressive disorder (MDD) showed a significantly lower gene expression of PRKCB1, while the PKC activation mediated by PRKCB1, we hypothesize that PRKCB1 contribute to the development of MDD and treatment response by its specific expression in brain, regulating ERBB, Chemokine signaling pathways and PKC activation during the neuroinflammatory process. In the present study, we aim to evaluate and verify the regulation effect of PRKCB1 on the neuroimmune and inflammatory mechanism in depressive disorder by a serious of studies focus on PRKCB1 gene expression modulating process and different downstream biomarkers which associated with PRKCB1 effect, combined with the specified treatment (plus omega-3 poly unsaturated fat acids). This study may provide scientific evidences for using neuroinflammatory biomarkers to diagnose MDD, as well as personalized treatment.
The study examines whether people primarily want to confirm their prior attitudes in health-related information search, in an online environment using social tags for navigation. Participants were looking for information on the treatment of depression with antidepressants and psychotherapy. They were randomly assigned to two groups with either high or low credibility of the community who provides social tags, and two groups where participants' confidence in prior attitudes was heightened or lowered, and to two groups where either antidepressant tags were more popular or psychotherapy was more popular. The investigators measured attitude change toward the treatments and also navigation behavior.
This early-stage trial aims to examine the feasibility, tolerability, and safety of Floatation-REST (Reduced Environmental Stimulation Therapy) or an active comparison condition in 75 participants with clinical anxiety and depression.
This research study is designed to look at the involvement of the glutamate system and synaptic density in depression and bipolar disorder. Each participant will undergo a screening appointment to determine study eligibility. Thereafter, the study will take 2 or 3 visits depending on schedule availability and will consist of a combination of one magnetic resonance imaging (MRI) or functional magnetic resonance imaging (fMRI) scan, one proton magnetic resonance spectroscopy (MRS) and/or one C13 MRS scans, and up to two positron emission tomography (PET) scans. Participants will also participate in cognitive testing. Depending on camera time, staff availability and subject schedule, total study participation may last 1-2 months.
Previous research has suggested that probiotics can improve depressive symptoms in patients with Major Depressive Disorder (MDD), particularly when used in addition to antidepressants. The aim of this exploratory pilot study is to improve the investigator's understanding of the mechanisms underlying these effects. This study will assess the effects of an 8-week double-blind placebo-controlled probiotic intervention on the gut microbiome, inflammatory marker levels, brain activity and neurotransmitter levels in patients with MDD and their relationship to changes in mood. This study will also recruit a group of demographically-matched healthy controls for gut microbiome comparison with the MDD group (non-interventional).
The purpose of this study is to evaluate the intermediate-term efficacy and tolerability of a multiple-dosing ketamine infusion paradigm for the treatment of medication-refractory major depressive disorder (MDD). We are using a two-phase design. The first phase is a 3-week double blind parallel design clinical trial comparing 6 infusions of ketamine compared to 6 infusions of midazolam in 24 adolescents with treatment resistant depression. The primary outcome of this phase will be Children's Depression Rating Scale (CDRS) score at Day 18. The second phase is a 6-month open phase in which patients who received midazolam and remain depressed with be offered open ketamine treatment (6 infusions over 3 weeks). All participants will be followed weekly for 6 months and tracked for time to relapse.
This is a 12 month, pragmatic trial designed to assess the differences in a digital medicine system (DMS)- ABILIFY MYCITE (Aripiprazole tablets with sensor)- measuring adherence versus treatment as usual (TAU) for adult patients with schizophrenia, bipolar I disorder, and major depression. Outcomes of interest will be adherence as measured by refill rates and all-cause and psychiatric health care use. Each patient will be in the study for a duration of 12 months. All treatment medication decisions will be made by the healthcare professionals (HCPs) and not by protocol. Psychiatrist(s), nurse(s) and/or team manager(s) who will be responsible for subjects' care, will be considered as HCPs in this trial.
More and more evidence confirms the relationship between the gut-brain-microbiota axis and the symptoms of mood disorders. A potential pathway connecting the intestines and the brain in depression is inflammation. Interventions for reducing inflammation and restoring the integrity of the intestinal mucosa are promising approaches in patients with major depressive disorder (MDD). Gut dysbiosis and the diet containing gluten are potential factors may be factors that negatively affect the communication between intestinal and brain. Gluten has a high immunogenic potential and affinity for the intestinal mucosa layer. In patients with an abnormal reaction to gluten, the elimination diet led to improved mood symptoms. However, the relationship between gluten and depression is still poorly understood. Intestinal microbiota can affect the digestion of gluten and reduce its immunogenic potential. Studies have shown that probiotic supplementation has an anti-inflammatory effect, can lead to changes in intestinal permeability and alleviate the symptoms of depression. This evidence supports the need for co-therapy, including the elimination of gluten and the restoration of intestinal eubiosis to reduce inflammation and modulate the gut-brain-microbiota axis. The objective of the SANGUT study is to determine the impact of interventions concerning the gut-brain-microbiota axis (probiotic supplementation, gluten-free diet and their combination) on the mental state, markers of inflammation and markers of intestinal permeability in adult patients with MDD. The study will last 12 weeks and consist of four visits (V): V0 - Screening (Day 0), V1 - Baseline (up to 1 week after Screening), V2 (six weeks after Baseline), V3 - End of the study (12 weeks after Baseline). The main hypothesis is that probiotic supplementation and/or a gluten-free diet will reduce the symptoms of depression, lower the level of inflammatory markers and favourably affect the integrity of the intestinal mucosal barrier.
This single-site clinical trial is an open-label study to identify the safety and pharmacokinetics of DPI-386 Nasal Gel (intranasal scopolamine gel) and IV Scopolamine. The study will require subjects to receive either multiple doses of 0.2 mg or a single dose of 0.4 mg, 0.6 mg, 0.8 mg, 1.0 mg, or 1.2 mg of DPI-386 Nasal Gel or 0.4 mg/mL IV Scopolamine per the assigned treatment cohort. Multiple PK blood draws will be collected dependent on cohort assignment. Vital signs and ECGs will be collected. No efficacy will be tested. Subjects will be monitored for at least eight hours after the final dose. There could be up to 160 subjects enrolled stratified equally by gender. Screening will not occur until after subjects have signed the informed consent form (ICF). Screening will include hematology, biochemistry, urinalysis, alcohol and drug screen, physical examination, including vital signs and ECG, and review of medical history by the PI or qualified designee, serum pregnancy test as applicable, and agreement to adhere to the study lifestyle requirements. Subject data will be recorded in the source documents and appropriate eCRF.
Major Depressive Disorder (MDD) is a debilitating disease characterized by a depressed mood, diminished interests, impaired cognitive function and vegetative symptoms, such as disturbed sleep or appetite. MDD occurs about twice as often in women than it does in men and affects about 6% of the adult population worldwide each year. Standard symptoms scales like the Hamilton Depression Rating Scale or the Montgomery-asberg Depression Rating Scale, the Self-Report 16-item Quick Inventory of Depressive Symptomatology were initially developed for the evaluation of a therapeutic intervention or a pharmacological treatment and are routinely used by clinicians in the assessment of Treatment Resistant Depression (TRD) occurrence. In parallel, patient-reported outcomes have gained increasing importance and are widely recommended by health authorities in the assessment of depression. The same institutions insist on the collection of real-world data to provide clinicians with ecological measurements. It has been demonstrated that an early response to an AntiDepressant (AD) treatment can be seen as early as week 2 and is not related to a placebo-effect. While there is no consensus on the exact cut-off values, several factors emerge as early predictors of a later treatment response, such as: - Improvement in emotional processing of happy facial expressions after 1 week of treatment, - Circa 20% improvement in Hamilton Depression Rating Scale-17 item (HDRS-17) at week 2. The hypothesis is therefore that repeated, systematic and real-time, contextualized and multimodal collection of depressive symptoms from patients at home will establish a threshold score that can predict a subsequent response to their treatment. REDRESS was inspired by several standard depression scales used and recommended by the French Health Authority, augmented with digital active and passive activity monitoring, speech analysis and emotional processing assessment. Another important assumption is that honesty and willingness to disclose personal or embarrassing things will be best achievable via a digital solution. To test this assumption, the overall scores and each subscores on the REDRESS numerical scale will be compared in people with MDD showing adequate response to those showing insufficient response. The response to treatment at week 6 will be studied (end of Phase 1). Non-responders and responders to the first treatment round will be enrolled in a 6-week extension phase (Phase 2). Non-responders will receive another treatment course (Other AD, combination, etc.). Responders will just be followed up and will keep the same treatment. The REDRESS scores will be analysed in this population and will allow us to test the investigator's assumption in people with treatment resistant depression. This study will also allow to assess patients' quality of life at the end of each phase of treatment and to compare results with REDRESS scores.