View clinical trials related to Depressive Disorder, Major.
Filter by:Research has shown that people suffering from MDD tend to maintain dysfunctional expectations despite experiences that disconfirm expectations. Recently, it has been shown that this persistence of expectations is due to maladaptive information processing involving "cognitive immunization". This experimental study aims at testing three different strategies to inhibit cognitive immunization, in order to enhance expectation change.
Major depressive disorder (MDD) is a serious psychiatric illness with a high lifetime prevalence rate and causes major clinical, social and economic burden to patients and their family. Despite more than 40 antidepressants with various mechanisms are available on the market, half of patients fail to achieve remission with optimized medication treatment. Due to unsatisfactory efficacy, frequent intolerability and poor compliance of psychopharmacotherapies, novel and safe alternative therapies are critically in need to improve the treatment of depression. Traditional Chinese medicine (TCM) theory describes a state of health maintained by a balance of energy in the body. If imbalanced, it can be corrected by acupuncture, the insertion of fine needles into different parts of the body. Although there are several clinical trials to demonstrate the antidepressant effects of acupuncture, its biological and physiological mechanisms are still unknown. In addition, clinical depression is frequently accompanied with somatic presentations, which are related to autonomic nervous dysfunction. It would be of interest to know if acupuncture could regulate autonomic nervous system (ANS) and improve the somatic symptoms in depression. The purpose of this study is to assess the effectiveness of acupuncture in the treatment of depression and to determine the influence of acupuncture on the molecular and ANS systems.
Purpose: Investigating the effects of non-invasive transcranial alternating current stimulation (tACS) on healthy participants and participants with mood disorders. Participants: 40 males and females, ages 18-65, with depressed mood; 40 healthy males and females, ages 18-65, free of neurological or psychiatric conditions. Procedures: This is a single visit study with two stimulation conditions (tACS and sham tACS). The session will begin with clinical assessments (including confirmation of diagnosis), followed by an interactive EEG task, then a 7 minute resting state EEG (2 minutes eyes closed, 5 minutes eyes open), followed by the stimulation session (40 minutes of tACS or sham tACS), followed by an additional 5 minute resting state EEG. The stimulation will involved 40 minutes of transcranial alternating current stimulation, 2 mA in amplitude and at individualized alpha frequency (determined by the 2 minutes eyes closed EEG recording; between 8 and 12Hz).
Psychological studies have shown that individuals tend to attribute causes of positive and negative events differently. Specifically, individuals hold an internalising or externalising bias of attribution which, in the case of particular patient groups, was found to polarize to the extreme. Such extreme attributional styles have found to have a direct impact on emotions, leading to a waning course of psychiatric disorders. This project aims to further examine the theoretical links between attributions and emotions using a transdiagnostic approach, and the effect of a 4-session process-based intervention on attributional biases.
MIN-117C03 is a 6-week, 3-arm, randomized, double-blind, placebo controlled study to investigate the safety and efficacy of MIN-117 in male and female patients with Major Depressive Disorder, aged 18 to 65 years. Approximately 324 patients were to be randomly assigned to 1 of 3 treatment arms, including placebo, 2.5 mg MIN-117, or 5.0 mg MIN-117, in a 2:1:1 ratio.
Repeated Transcranial Magnetic Stimulation - R.TMS - is currently part of the treatment for depressive illness. This non-invasive technique is designed to stimulate certain areas of the cerebral cortex involved in this pathology. FDA approved this treatment in routine for depressive illness. R.TMS still remains in assessment. Due to the heterogeneity of methods and the weakness of the cohorts therapeutic superiority can not concluded . Stimulation parameters remain numerous even if a consensus is beginning to emerge. The therapeutic target is the left dorso - lateral prefrontal cortex. The lack of efficacy is probably due of the inaccuracy. The empirically location of the target does not take into account the inter-individual anatomical differences. The neuronavigation is becoming widespread in routine clinical practice. The referent nurse stays with the patient all along the rTMS sessions. His role is to set up treatment, to ensure the safety and the well-being of the patient. An rTMS session is an average of 30 minutes and is a very special moment to create a specific therapeutic relationship. No study was conducted to evaluate the therapeutic relationship. The assumption is made that rTMS with a semi - structured interview provides a qualitative and quantitative clinical response greater than a semi - structured rTMS without this nursing care. The investigators therefore propose to patients not receiving a semi-structured interview to listen to music with eyes closed.
In this double blind, randomized placebo controlled trial we aim to determine the efficacy of simvastatin as an add-on treatment for treatment resistant depression. We will recruit 150 people with treatment-resistant depression with the aim of determining whether the addition of simvastatin (20mg daily) to treatment as usual (TAU) for 12 weeks leads to an improvement in depressive symptom compared with placebo added to TAU.
This pilot clinical trial will evaluate the efficacy and safety of transcutaneous direct current stimulation (tsDCS) in major depressive disorder.
Late-life depression has been frequently associated with cognitive impairment. Several meta-analyses consistently suggested that a history of depression approximately doubles an individual's risk for developing dementia later in life. Neurodegeneration may play an important component in late-life depression. The pathophysiology behind the link between late-life depression and the subsequent development of dementia largely remains unclear, and should be heterogeneous. This highlights the need to identify specific neurodegenerative pathways involved in late-life depression, which will facilitate research on mechanisms and new treatments in the future. The recently published the National Institute on Aging and the Alzheimer Association (NIA-AA) criteria might provide new insights and frameworks to explore the patterns of neurodegenerative process in elderly depressed patients and to categorize them into different biomarker-based groups. In the present project, the investigators will recruit 40 patients with lifetime major depressive disorder, and 20 non-depressed cognitively normal comparison subjects. Alzheimer's disease pathology (A) was determined by measuring Aβ deposition by F-18 AV-45 PET, and neurodegeneration (N) was established by measuring hippocampal volume using MRI. Individuals were categorised as A-N-, A+N-, A+N+, or suspected non-Alzheimer's disease pathophysiology (A-N+, SNAP). All subjects will further undergo F-18-THK-5351 image study to detect underlying tau pathology. By doing this, the investigators will elucidate the neurodegenerative pathophysiology behind the link between depressive disorder and the subsequent development of dementia.
The purpose of this study is two-fold: 1. To identify the best smartphone data features (based on keyboard, sensor, voice/speech data) that correlate with mood, anxiety, and cognitive assessments in patients with Major Depressive Disorder (MDD) and Bipolar Depression (BD). 2. To identify the best smartphone data features (based on keyboard, sensor, voice/speech at a) that predict relapse and remission in MDD or BD.