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Discover 23,284 clinical trials near Maryland. Find research studies in your area.
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NCT01038232
Background: \- People who are in treatment for substance abuse often feel distress during the withdrawal period and afterward. Some individuals feel distress more acutely than others, and this distress has been linked to poor treatment outcomes and increased risk of relapse in smokers, alcoholics, and cocaine- and heroin-dependent individuals. More research is needed on the effects of distress on the brain, particularly in individuals who are seeking treatment for substance abuse. Researchers are interested in using functional magnetic resonance imaging (fMRI) scanning to study distress tolerance in both substance users seeking treatment and healthy non-drug-using volunteers. Objectives: \- To use functional magnetic resonance imaging to study the effectiveness of a distress tolerance assessment. Eligibility: \- Individuals between 18 and 50 years of age who are either cocaine dependent or healthy non-drug-using volunteers. Design: * This study involves an initial screening visit and a scanning visit, with four followup visits. * Participants will be screened with a medical history and physical examination, as well as blood samples and questionnaires about mood and past and current drug use. * Participants will have a structural MRI scan of the brain to provide a baseline reading for comparison. Participants will then have an fMRI scanning session, which will include both the distress tolerance assessment and relevant control tasks. Heart rate, blood pressure, and other physical reactions will be monitored throughout the scan. Participants will also provide blood and saliva samples to measure stress hormone levels. * Participants will be eligible to have followup assessments with fMRI scanning 1, 3, 6, and 12 months after the scanning visit.
NCT00001806
In 1997, the Genetics Department of the NCI Medicine Branch helped establish a breast cancer genetics program at the National Naval Medical Center s Breast Care Center. Genetic education, counseling, and germline testing for BRCA1 and BRCA2, two genes which confer increased lifetime risks for breast and ovarian cancer, were offered under a Navy IRB-approved study. Sixty participants received education and counseling on that protocol, 49 of whom chose to have genetic testing. The education and counseling, provided by oncology nurses trained in cancer genetics, focused on preparing participants to make well-informed decisions about testing. Included were information on cancer and genetics; hereditary breast/ovarian cancer syndrome; risks, benefits and limitations of BRCA1/BRCA2 testing; and screening and risk reduction options for high-risk individuals. Through our experience with this study, we devised two different methods of providing this information. Both of these methods were well received and appear to be equally effective, as measured by knowledge assessments before and after the sessions and subjective evaluation by the participants. We will now study them in a randomized fashion in the current protocol, to better evaluate whether one method is preferable. Ultimately we hope to be able to make recommendations that will allow for access to genetic education and counseling for more individuals in a more cost efficient manner.