View clinical trials related to Obsessive-Compulsive Disorder.
Filter by:Obsessive-compulsive disorder (OCD) and anxiety disorders are common and debilitating conditions which are often chronic when treatment is not provided. International guidelines recommend cognitive behavioral therapy (CBT) as the first-line treatment, and research has shown that CBT can be delivered over a concentrated period of time. The Bergen 4-Day Treatment (B4DT) is an exposure-based treatment which is delivered over four consecutive days. B4DT has been shown to induce rapid and long-lasting remission in around 70% of patients. This provides a platform for studying psychological and neurobiological changes associated with treatment response and non-response. The present study will investigate longitudinal changes in psychological measures and DNA methylation in patients who receive the B4DT, as well as a subset will also undergo multimodal brain imaging.
Obsessive-compulsive disorder impacts 1-2 percent of the population. Unfortunately, about fifteen percent of patients fail to benefit from existing therapies. A small number of OCD patients, who have a disabling illness that does not improve after conventional treatments, have neurosurgery as a last resort. One procedure, capsulotomy, involves making pairs of lesions in an anatomically-defined part of the anterior limb of the internal capsule, a structure containing nerve fiber bundles connecting the thalamus, in the center of the brain, to the prefrontal cortex, the most anterior and outermost brain region. The investigators will examine how the therapeutic effects of capsulotomy relate to changes in the structure of these brain pathways with structural (diffusion tensor imaging, DTI) and functional (resting-state and task-based) connectivity metrics. The investigators will also utilize experimental cognitive tasks that are sensitive to the circuitry impacted by this procedure.
The impact of the current Covid-19 pandemic on mental health of people with preexisting psychiatric problems is enormous. This longitudinal study investigates the prevalence of mental health problems (obsessive compulsive, or depressive symptoms, anxiety, stress...) of obsessive-compulsive disorder (OCD) patients and their live-in family members. We also aim to investigate the impact of the pandemic, isolation measures, exposure to media and changing therapeutic setting in OCD patients and their live-in family members through qualitative research.
The proposed study is designed to first test whether teaching people personalized or standardized emotion regulation skills leads to greater decreases in daily negative emotion intensity. Second, using data from an initial sample, the investigators will prospectively assign an independent sample of participants to receive their predicted optimal or non-optimal skills to determine if it is feasible and efficacious to match participants to the most appropriate training condition. Results of these studies may identify the mechanisms by which emotion regulation interventions impact emotional functioning and allow for the development of personalized, evidence-based, and scalable emotion regulation interventions.
The primary aim of the present study is to examine the efficacy and safety of tolcapone in adults with moderate to severe OCD.
This is a multi-site, double-blinded, randomized, crossover study design for SEEG-guided 4-lead DBS for treatment-refractory OCD, followed by open label stimulation for an additional 6 months. The study will be conducted in 3 stages: Stage 1 will consist of SEEG brain mapping and optimization of stimulation parameters. Stage 2 will consist of DBS surgery and further optimization of stimulation parameters. Stage 3 will be randomized, crossover treatment, followed by open label treatment.
The purpose of this study is to examine whether youth with OCD who benefit from CBT augmentation to SRI can discontinue their medication without relapse over 24 weeks.
The goal of this clinical trial is to compare a novel, condensed version of cognitive behavioral therapy (Bergen 4-Day Treatment, B4DT) to the gold standard psychological treatment (gold-standard CBT) for obsessive compulsive disorder (OCD). The main question it aims to answer is: • Is B4DT non-inferior to standard cognitive behavioral therapy (CBT) with regard to OCD symptoms 14 weeks after treatment start? Adult patients with obsessive compulsive disorder will be randomly assigned to receive either gold standard CBT one to two times per week for 14 weeks, or 4 days of B4DT during one week.
The aim of this study is to analyze the effectiveness of three different montages of transcranial direct current stimulation (tDCS) in treating treatment-resistant OCD.
The purpose of this randomized, sham-controlled study is to evaluate the effectiveness of DBS therapy in individuals suffering from severe OCD and to investigate DBS treatment with functional [18F]FDG-Brain-PET.