View clinical trials related to Obsessive-Compulsive Disorder.
Filter by:The primary purpose of this study is to investigate whether administration of xenon reduces symptoms of Obsessive-Compulsive Disorder (OCD). Xenon is a naturally occurring gas that has been used in clinical settings both as a general anesthetic agent and as a contrast agent for computed tomography (CT) scans. Investigators believe that xenon may be effective in reducing symptoms of OCD due to its ability to reduce the activity of a specific brain chemical called glutamate, which has been shown to be abnormal in the brains of people with OCD. It is important to understand that this study uses a placebo, or inactive, treatment. In this study, the placebo treatment is inhalation of room air (instead of xenon). All participants will receive both xenon and placebo treatments at some point over the course of the study. However, neither the participants nor the study investigators will know which treatment you are receiving.
Hypothesis of this study is that mindfulness meditation would decrease the severity of obsessive-compulsive symptoms.
This study will examine the effect of offering information sessions to a randomized group of patients with OCD spectrum disorders. Psychoeducation is a component of first line treatment; though intended to be informative in nature, these psychoeducation services can have a positive effect on quality of life, sense of self-efficacy, functioning and a person's readiness to engage in long term treatment. However, no studies have dismantled and tested the independent effect of psychoeducation from standard treatment such as Cognitive Behavioural Therapy. This study aims to directly test the potential effect of one aspect of CBT that if found to be helpful, can become a distinct early intervention component of care so that as people await services, they can profit from the early benefits associated with attending these information sessions. This study therefore sets out to examine the potential early benefits of providing education about the illness on symptom functioning, quality of life and readiness to engage in more formal treatment. We will offer 4 structured information sessions to individuals allocated to a wait list for services related to the treatment of OCD and OCD Spectrum Disorders in order to directly test the benefit of adding a didactic structured psychoeducation program to our services. The study will be a randomized trial where subjects (N=50) will be randomly assigned to receive either 1) 4 educational sessions covering information on diagnosis, treatment, available resources and self care for OCD and OCD Spectrum Disorders or 2) wait list as per usual with no additional information sessions. The experimental design is a 2 (treatment condition) by 2 (assessment phase) repeated measures factorial design. It is hypothesized that subjects participating in the psychoeducation group compared to the wait list control group will see greater reductions in self-reported measures of symptom severity and improvement in other measures of quality of life, level of functioning, self-efficacy and readiness to engage in treatment. If this study can demonstrate that the addition of a short structured informative intervention of 4 sessions can confer early benefits for those suffering with OCD and OCD spectrum disorders, then it provides another route by which patients can improve this condition specifically while waiting for consultation and the opportunity to receive a more structured, evidence-based treatment.
The investigators propose a test of causality by examining a cohort of patients undergoing deep brain stimulation (DBS) within the ventral striatum. The investigators will examine behavior on and off stimulation across a range of tasks that index different forms of impulsivity. Patients will be studied in both the ON and OFF state - that is, they will be tested during active deep brain stimulation and 30 min to 1 hour after stimulation has been stopped (order of state will be counterbalanced across subjects). The investigators specific aim is to test the hypothesis that enhancing ventral striatal signaling (i.e. ON-state DBS) will cause more impulsive patterns of behavior across several impulsivity tasks. The investigators predict that ventral striatal DBS will increase stop-signal reaction time on the stop-signal task and commission errors on the Go/NoGo task, and increase delay aversion in a delay discounting paradigm.
The purpose of this study is to determine how many patients with Parkinson's disease have compulsive behaviors, and what types of behaviors they have. This study will also determine if acamprosate can be used to treat compulsive behaviors in Parkinson's disease patients.
Estimating the prevalence of OCD symptoms among patients with burns
We propose to undertake an initial study of DCS to determine whether it has any short-term clinical benefits when added to standard ERP therapy in adults with OCD.