Active clinical trials for "Obsessive-Compulsive Disorder"

Enrollment of candidates undergoing a deep brain stimulator (DBS) implant.

Cognitive profile of patients who suffer both from PTSD and OCD, as compared to those who suffer from PTSD or OCD without other comorbidity.

The purpose of this study is to learn more about Obsessive-compulsive Disorder (OCD) in children. OCD usually has a slow onset, and symptoms that may remain at a stable level over time. A subset of children with OCD has a sudden onset and symptoms that fluctuate in severity over time. This study will also compare healthy children to those with OCD. This is an observational study; children who participate will not receive any new or experimental therapies. OCD affects nearly 1% of the pediatric population. The symptoms of this illness can interrupt development, causing significant psychological distress and producing life-long impairments in social, academic, and occupational functioning. A subgroup of pediatric OCD has been designated by the acronym PANDAS (Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections). This type of OCD is characterized by sudden symptom onset and a relapsing-remitting course of illness; exacerbation of symptoms occurs with scarlet fever or strep. throat infections. This study will identify factors that distinguish children with PANDAS OCD from children with non-PANDAS OCD, and will compare both groups to healthy children. Children with OCD and their parents are screened with interviews and a review of the child's medical records. Participants have an initial evaluation that includes a psychiatric, physical and neuromotor exam, neuropsychological testing, psychological interviews, and a blood test. Structural magnetic resonance imaging (MRS) scans of the brain are also obtained. The MRS scan does not use radiation. After the initial evaluation, children with OCD have follow-up visits every 6 weeks for 12 to 24 months. They are seen yearly for 8 years after the study. If they have a significant improvement or worsening of their symptoms, they are asked to make a maximum of two extra visits. Parents of OCD patients are called four times a year to discuss any changes in the child's condition between yearly visits. All participants have a 1-year follow-up visit upon study completion.

OBJECTIVES: I. Characterize the natural history, associated features, and severity of symptoms of obsessive compulsive disorder and Tourette syndrome in children and adolescents. II. Identify factors that influence the clinical course and prognosis of these patients.

Psychiatric Comorbidity and quality of life in patients with Obsessive Compulsive Disorder(case control study )

Characterization of the influence of pregnenolone vs. placebo on subjective distress and autonomic functioning during cognitive-behavioral exposure therapy in patients with obsessive-compulsive disorder.

For this human research, 17 treatment-refractory OCD patients who already received DBS implants for treatment refractory OCD between June 1998 and October 2007 will be included. New patients that complete the protocol on "refining the target for DBS in OCD" will be included in this follow-up study as well. They will be psychiatrically evaluated on regular bases: at least twice yearly in the years two to five after surgery, at least once a year for the years thereafter. The duration of this protocol is indefinite, but spans at least 10 years. The main aim of this study is to investigate the long-term effect of DBS in OCD patients.

Anxiety disorders are common disorders, which pose a major burden to society and the individual. An anxiety disorder may be treated with medication, in particular with antidepressants such as the selective serotonin reuptake inhibitors (SSRIs). However, much of what is known about antidepressants is derived from research in depression rather than anxiety. In recent years, researchers have found that antidepressants are more effective for severely depressed patients than they are for patients with milder symptoms. It is possible that a similar relationship between symptom severity and antidepressant efficacy exists for anxiety disorders, but there is currently little evidence available to answer this question. As antidepressants are frequently prescribed to patients with mild or moderate anxiety, a clear understanding of their effectiveness across the severity range is vital to inform treatment decisions. Therefore, the purpose of this meta-analysis is to examine whether initial symptom severity affects antidepressant efficacy for anxiety disorders.

The purpose of this study is to estimate the cost of obsessive-compulsive disorder in China based on the prevalence rate from a social perspective.

Estimating the prevalence of OCD symptoms among patients with burns