Active clinical trials for "Phobia, Social"

This cohort study is a large population-based study in the UK to determine the risks of comorbid mental health conditions (including depression, anxiety and other potential psychological complications of vitiligo) in adults with vitiligo compared to controls and to evaluate whether the relative risks may vary by different ethnicity.

This study will attempt to identify gene and brain activity markers that predict whether people with social anxiety disorder will respond to selective serotonin reuptake inhibitor medications.

The purpose of this study is to increase researchers understanding of the biological basis of generalized anxiety disorder and social anxiety disorder. They will investigate how the brain activity associated with specific thoughts and feelings may play a role in these anxiety disorders. This knowledge will be used to design interventions to help those with these illnesses. To qualify for this study, participants must be evaluated via an initial telephone screening interview and material sent through the mail. Participants will then be required to make three visits to NIH. During the first visit, they will be asked questions about their general mood, degree of nervousness, thinking skills, and behavior. They will undergo a thorough physical exam, including an EKG, blood work, urinalysis, and a pregnancy test for women of childbearing potential. During the second visit, participants will spend about 2.5 hours doing various tasks while sitting and looking at a computer screen. These tasks will guide them to experience specific kinds of thoughts and emotions. Researchers will attach electrodes to the participants hands to monitor the amount of electricity conducted by the skin. The third visit will be similar to the second visit, but participants will perform the tasks while lying in a MRI scanner. Participants will be compensated up to $400 for their involvement in this study.

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.