- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00029588
Reward-Related Processes and Brain Function
This study will examine and compare brain changes during decision-making in healthy adolescents and adolescents who are anxious or depressed. The findings may provide a better understanding of mechanisms that lead to depression or anxiety.
Adolescents between 9 and 17 years of age and adults between 20 and 40 years of age in the following categories will be enrolled in this study:
- Healthy adults
- Healthy adolescents
- Adolescents with major depression
- Adolescents with anxiety disorder (generalized anxiety disorder, social phobia, or/and separation anxiety disorder)
The study involves three visits, as follows:
Visit 1
Visit 1 consists of three parts for both child and adult participants:
- Part 1: Staff will meet with participants for a standard psychiatric interview, which will include questions about the participants feelings, experiences and behavior both past and present. For adolescent participants, staff will meet with the child alone, the parent alone, and the child and parent together.
- Part 2: Participants will perform a series of simple tasks involving shapes, letters, and numbers. They will have a medical history, physical examination and blood draw. In addition, adolescents will have a urine drug test.
- Part 3: Adults and those adolescents who will undergo magnetic resonance imaging (MRI) in Visit 3 will receive training to familiarize them with the procedure.
Visit 2
- Adolescents will again be asked standardized questions regarding their feelings, experiences and behavior, and will then perform a series of simple decision-making tasks on a computer.
- Adults will undergo MRI scanning, as described below in Visit 3 for adolescents. This concludes the participation of adults in the study.
Visit 3
Adolescents will have one of the following two procedures:
- Decision-making task using a computer. Small electrodes will be placed on the child s wrists, face and fingers to monitor muscle tone and skin humidity during the task.
Or
- MRI, a test that uses a strong magnetic field and radio waves to show changes in brain function. During the scan, the participant lies on a table in a space enclosed by a metal cylinder (the MRI scanner). The procedure takes 60-90 minutes; subjects must lie still for 10-15 minutes at a time. During imaging, the subject will be asked to perform a decision-making task on a computer.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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District of Columbia
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Washington, D.C., District of Columbia, United States
- Childrens National Medical Center
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Maryland
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Bethesda, Maryland, United States, 20892
- National Institutes of Health Clinical Center, 9000 Rockville Pike
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
INCLUSION CRITERIA:
- Age: Subjects will be males and females, 9-17 and 20-40 years of age.
- Psychiatric history: Subjects in Group 3, and 4 will be diagnosed with current MD, and current AD (generalized anxiety disorder, social phobia, or/and separation anxiety disorder) respectively, based on k-SADS interviews of parents and adolescents for minors (<18 years old), and SCID for adults. History of anxiety disorders in individuals with MD is acceptable, if current symptoms are mild or absent (see exclusion criteria). Similarly, history of depression in individuals with AD is acceptable, if current symptoms are mild or absent (see exclusion criteria). AD and MD patients should have a CGAS< 70.
- Medication status: No history of medication treatment or use of an SSRI > one month prior to entering the study and fluoxetine > six months prior to entering the study.
EXCLUSION CRITERIA:
Because factors such as psychiatric disease, or CNS disease, can influence functional brain activity, and pregnancy precludes participation in fMRI studies, these factors are exclusionary.
- Psychiatric disease: Any current history of an axis I diagnosis other than adjustment disorder, simple phobia, Social Phobia, Separation Anxiety, dysthymia, GAD and MD is exclusionary. Subjects will be assessed using DSM-IV criteria via standardized psychiatric interviews conducted by trained examiners (K-SADS in minors and SCID in adults). Any current suicidal ideation, and severe ADHD requiring pharmacotherapy will be exclusionary.
- History of Drug Abuse: Axis I diagnoses of substance use disorders will be exclusionary.
- Severe acute and chronic medical illnesses
- CNS disease: History of brain abnormalities (e.g., neoplasms, subarachnoid cysts), cerebrovascular disease, infectious disease (e.g., abscess), or other neurological disease, or history of head trauma (defined as loss of consciousness > 3 min).
- IQ lower than 70.
- Metal or electronic objects: Metal plates, certain types of dental braces, cardiac pacemakers, etc., that are sensitive to electromagnetic fields contraindicate MRI scans.
- Claustrophobia: Subjects will be questioned about potential discomfort in being in an enclosed space, such as an MRI scanner.
- Pregnancy status: Because of the potential effects of hormonal changes on brain function as well as the unknown effects of electromagnetic field on the fetus, pregnancy is an exclusion criterion. Sexually mature female participants must have a negative urine pregnancy test performed within 24 hours of the fMRI scan.
Study Plan
How is the study designed?
Design Details
Collaborators and Investigators
Investigators
- Principal Investigator: Monique Ernst, M.D., National Institute of Mental Health (NIMH)
Publications and helpful links
General Publications
- Elliott R, Sahakian BJ, McKay AP, Herrod JJ, Robbins TW, Paykel ES. Neuropsychological impairments in unipolar depression: the influence of perceived failure on subsequent performance. Psychol Med. 1996 Sep;26(5):975-89. doi: 10.1017/s0033291700035303.
- Rogers RD, Owen AM, Middleton HC, Williams EJ, Pickard JD, Sahakian BJ, Robbins TW. Choosing between small, likely rewards and large, unlikely rewards activates inferior and orbital prefrontal cortex. J Neurosci. 1999 Oct 15;19(20):9029-38. doi: 10.1523/JNEUROSCI.19-20-09029.1999.
- Murphy FC, Sahakian BJ, Rubinsztein JS, Michael A, Rogers RD, Robbins TW, Paykel ES. Emotional bias and inhibitory control processes in mania and depression. Psychol Med. 1999 Nov;29(6):1307-21. doi: 10.1017/s0033291799001233.
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 020092
- 02-M-0092
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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