- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01425684
Brain Circuits in Schizophrenia and Smoking
Study Overview
Status
Detailed Description
There are several studies and hypotheses to be tested. This project includes (1) a cross-sectional study design that measures brain imaging, smoking, clinical diagnosis and symptoms, cognitive functional assessments, distress tolerance, and genetic information, which is also the baseline for the longitudinal study; and (2) a longitudinal study design for smoking cessation option for 1 year in some smokers and a longitudinal follow-up for all available subjects.
During the baseline portion of the study, subjects are expected to complete clinical symptom assessments, a computer challenge task to measure distress tolerance, MRI scan, role-play test to measure cognitive and functional abilities, and blood draw. Subjects who are eligible will participate in the longitudinal follow-up study where the research team will call subjects regularly regarding smoking related information (smoking risk and treatment options).
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Maryland
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Baltimore, Maryland, United States, 21228
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Male and Female between ages 12-above (clinical assessments and blood draw only above 62)
- Ability to give written assent (age below 18)
- Ability to give written informed consent (age 18 or above)
- Individuals fulfilled other criteria but over age 62, with major medical illnesses, significant alcohol or other drug use, or unable to undergo MRI may participate in clinical assessments and blood draw if his/her participation forms a family unit (i.e., if at least one of the family member has participated).
- Subjects above age 62 will not participate in MRI measurements although they may still participate in clinical assessments and blood draw.
Exclusion Criteria:
- Inability to sign informed consent/assent
- For patient participants, Evaluation to Sign Consent (ESC) below 10.
- Any major medical illnesses that may affect normal brain functioning. Examples of these conditions include, but not limited to, stroke, repeated seizure, history of significant head trauma, CNS infection or tumor, other significant brain neurological conditions.
- Significant alcohol or other drug use (substance dependence within 6 months or substance abuse within 1 month) other than nicotine or marijuana dependence.
- Woman who are pregnant (child-bearing potential but not on contraceptive and missing menstrual period; or by self-report; or by positive urine pregnancy test before MRI)
- Can not refrain from using alcohol and/or marijuana 24 hours or more prior to experiments.
- For MRI, unable to undergo MRI scanning due to metallic devices or objects (cardiac pacemaker or neurostimulator, some artificial joints, metal pins, surgical clips or other implanted metal parts) or claustrophobic to the scanner
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
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schizophrenia
smokers and nonsmokers
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control
smokers and nonsmokers
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Nicotine addiction severity is associated with abnormal functional connectivity as measured by fMRI,compared with nonsmokers.Schizophrenia pts are assoc with add'l functional connectivity impairment compared with controls
Time Frame: 12-15 hours
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12-15 hours
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Symptom and Cognition rating
Time Frame: 1-2 hours
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1-2 hours
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Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: L.Elliot Hong, M.D., Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
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
- HP-00045716
- R01DA027680 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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