View clinical trials related to Depressive Disorder, Major.
Filter by:This is a study that will recruit patients from the neurosurgery clinic and the regular TMS clinic. It's a smaller study designed to collect brain imaging pre-treatment and then use image guided TMS to treat patient with a one week "accelerated" rTMS protocol using the research TMS machine that is housed in Dr. Sean Nestor's lab. The idea is to examine whether severe treatment resistant depression has a different brain signature than less severe/TRD and whether we can get a therapeutic response from patients that would otherwise undergo neurosurgery or will ultimately undergo neurosurgery.
Background: The prevalence of depressive disorder, particularly major depressive disorder is on the rise globally and the use of antidepressant medication for treatment does not usually resulting in full remission. However, combination of antidepressant medication and psychotherapy for treatment of major depressive disorder (MDD) increase the rate of full remission compared to antidepressant monotherapy. This three-armed, parallel-group, double-blind, randomized control trial (RCT) aims to assess and compare the effects of combination of exergame and acceptance and commitment (e-ACT) training programme and ACT only on psychiatric symptoms (depression and anxiety), experiential avoidance (EA), quality of life (QoL), and biomarkers of depression (such as BDNF, CRP, and VEGF) among MDD patients. Methods: This RCT will recruit 120 patients diagnosed with MDD who will be randomized using stratified permuted block randomization into three groups, which are combined e-ACT training programme, ACT only and treatment-as-usual control groups in a 1:1:1 allocation ratio. The participants in the e-ACT and ACT only intervention groups will undergo once a week intervention sessions for 8 weeks. Assessments will be carried out through three time points, such as the first assessment before intervention began (t0), second assessment immediately after completion of intervention at 8 weeks (t1) and third assessment 24 weeks after completion of intervention (t2). During each assessment, the primary outcome assessed is the severity of depression symptoms, while the secondary outcomes assessed are severity of anxiety symptoms, QoL, EA, and biomarkers of depression.
There are 636,000 self-reported cases of sexual assault annually in Canada, and nine out of ten persons who have experienced sexual assault are women. Cognitive and behavioural therapies (CBT) are the treatment of choice for many psychological problems arising from sexual assault. However, accessing CBT is a significant challenge, especially for women who have experienced sexual assault who may be ashamed and not disclose the sexual assault. Online CBT is an effective option to circumvent these barriers. In addition to being accessible and less resource-intensive, studies report that patients are less inhibited and that the online environment provides greater emotional safety. There is also a growing body of evidence that online CBT programs requiring little or no contact with a mental health professional are effective, this having been demonstrated primarily with individuals with anxiety and mood disorders. But when it comes to treating the psychological symptoms of sexual assault in potentially vulnerable individuals, can we really suggest a self-care approach? There is no direct empirical evidence to support such a recommendation, and it is this important question that this project wishes to address. To compare the effectiveness, acceptability and user engagement in a self-managed treatment platform with or without the support of a therapist to reduce post-traumatic symptoms, depression and insomnia in people who have suffered one or more sexual assaults, 204 victims of sexual assault experiencing significant distress will be recruited and randomly assigned to either the self-managed or the therapist-assisted online treatment condition. Participants will complete measures assessing post-traumatic stress disorder, insomnia, depression, anxiety, and maladaptive beliefs before, during, after and 3 months after treatment. Secondary outcome will be and appreciation of the online treatment measures by a self-report questionnaire and a semi-structured interview. If effective in reducing symptoms, this treatment would offer the potential to support a self-care approach to treating a wide range of psychological symptoms resulting from sexual assault. The self-managed online platform would fill a service gap deplored by this population.
Clinical depression often includes a pessimistic view of things which have happened in the past and an impairment in the ability to experience pleasure or looking forward to things. A licensed drug called ketamine affects the levels of glutamate, a chemical messenger in the brain, and has been used as a treatment particularly for depression which hasn't got better with other types of medication. Glutamate plays a role in learning and memory so the investigators are interested in understanding how ketamine can affect how people with depression remember past negative and positive memories and how they experience reward. The investigators are conducting a study in depressed participants who did not improve with the standard antidepressant treatment to expand our understanding on how ketamine can influence memory, the way people understand emotions and learn from rewards and punishments. Study participants will undergo medical and psychiatric health screening, drug administration (ketamine or saline), questionnaires and computer tasks before and after the administration of the study drug, and an MRI scan after administration of the drug. MRI is a type of brain scan that allows us to see how the brain responds during for example memories of things which have happened in the past. This project will help us understand how NMDA antagonists may work in depression.
Mindfulness-Based Cognitive Therapy (MBCT) is effective in reducing relapse rates and (residual) symptoms in major depressive disorder (MDD). However, the mechanisms underlying those MBCT-induced effects are far from clear. The goal of this study is to get more insight into the working mechanisms of MBCT. The main question to be answered is whether MBCT-induced reduction in depressive symptoms is mediated and/or moderated by repetitive negative thinking (RNT), or other factors hypothesized to be involved in the working mechanism of MBCT (e.g. mindfulness skills and self-compassion).
TRIAGE-Psych is a survey study designed to assess potential participants' eligibility to screen for industry-sponsored psychiatry clinical trials.
In patients suffering from anorexia nervosa associated with severe major depression, serotonin reuptake inhibitor drugs have shown little efficacy in significantly reducing depressive symptoms. A possible explanation for this poor efficacy could be that people with anorexia nervosa have a deficiency in amino acids such as tryptophan, which is necessary for the production of the neurotransmitter serotonin. Therefore, tryptophan supplementation has been suggested as a means of increasing the pharmacological response to serotonin reuptake inhibitor drugs in patients with anorexia nervosa. Furthermore, malnutrition present in patients suffering from anorexia nervosa is in some cases associated with problems of intestinal absorption of nutrients, with possible implications on the pharmacokinetics of the drugs administered, including selective serotonin reuptake inhibitors (SSRIs). The present observational study aims to evaluate the correlations between the clinical response to Citalopram therapy (in different o.s. and i.v. formulations) and some nutritional, neurotransmitter and inflammatory biomarkers, in order to identify potential predictive markers of response to therapy for severe major depression in patients with anorexia nervosa. The following parameters will be evaluated in patients enrolled in all 3 observation times described above: - Plasma concentration of Citalopram - Serum concentration of Serotonin - Plasma concentration of dopamine - Serum concentration of Tryptophan - Serum concentration of BDNF - Hamilton scale 17 items and other clinical scales (EDI-3, SCL-90, BUT).
Major depressive disorder (MDD) is a significant cause of disability that affects approximately 16% of the world's population and is associated with chronic inflammation. Although the mechanisms of MDD have not yet been clearly elucidated, NLRP3 inflammasomes have been implicated in the pathogenesis of depression.NLRP3 inflammasome is an intracellular multiprotein complex that consists of nod-like receptor protein 3, an adaptor protein, and a procaspase-1 precursor. It is well known that a variety of danger signals, such as pathogen-associated molecular patterns and danger-associated molecular patterns can activate NLRP3 inflammasome
The purpose of this study is to test the hypothesis that the anti-depressant and anti-suicidal effects of the N-methyl-D-aspartate receptor (NMDAR) antagonist Ketamine is critically dependent on stimulation of Alpha-Amino-3-Hydroxy-5-Methyl-4-Isoxazole Propionic Acid receptors (AMPAR).
This study aims at developing an online system for the remote delivery of EMDR therapy in Pakistan. Moreover, this study will compare the efficacy of online EMDR therapy with face-to-face EMDR therapy.