Functional Relevance of Dopamine Receptors in Healthy Controls and Patients With Schizophrenia: Characterization Through [11C]NNC-112 and [18F]Fallypride Positron Emission Tomography
This study is currently recruiting participants.
Verified January 2014 by National Institutes of Health Clinical Center (CC)
Information provided by:
National Institutes of Health Clinical Center (CC)
First received: July 18, 2009
Last updated: February 19, 2014
Last verified: January 2014
Show Detailed Description
- Some illnesses, such as schizophrenia, have effects on brain cells called dopamine receptors, which are required for normal brain function. People with schizophrenia have difficulty thinking and experience hallucinations and delusions. Medications that change brain dopamine receptors can decrease these hallucinations and delusions.
- The cause of schizophrenia and its association with brain dopamine receptors is not known but may be clarified by studying dopamine receptors in people who have dopamine disorders (such as schizophrenia) and those who do not. Researchers are interested in studying the dopamine system to gain a better idea of how dopamine disorders develop, which may lead to better medical care for people with schizophrenia.
- To study the amount and distribution of two types of dopamine receptors.
- Individuals between the ages of 18 and 55 who have schizophrenia.
- Healthy volunteers between the ages of 18 and 90.
- Participants will undergo a full screening, with physical and psychological history, a neurological examination, and blood and urine samples.
- Participants will have a blood flow map of the brain recorded with a positron emission tomography (PET) brain scan. A magnetic resonance imaging (MRI) scan will also be performed to determine brain anatomy.
- To study the amount and distribution of dopamine receptors in the brain, participants will receive a small amount of a radioactive chemical in the vein, followed by a PET scan.
- The procedure will be performed twice in two separate sessions, once for [18F]fallypride and once for [11C]NNC-112.
|Official Title:||Functional Relevance of Dopamine Receptors in Healthy Controls and Patients With Schizophrenia: Characterization Through [11C]NNC-112 and [18F]Fallypride Positron Emission Tomography|
Resource links provided by NLM:
U.S. FDA Resources
Further study details as provided by National Institutes of Health Clinical Center (CC):
Primary Outcome Measures:
- Regional binding potentials of [11C]NNC-112 and [18F]Fallypride
|Study Start Date:||July 2009|
Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00942981
|Contact: Jasmin Czarapata, Ph.D.||(301) firstname.lastname@example.org|
|Contact: Karen F Berman, M.D.||(301) email@example.com|
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike||Recruiting|
|Bethesda, Maryland, United States, 20892|
|Contact: For more information at the NIH Clinical Center contact Patient Recruitment and Public Liaison Office (PRPL) 800-411-1222 ext TTY8664111010 firstname.lastname@example.org|
Sponsors and Collaborators
|Principal Investigator:||Karen F Berman, M.D.||National Institute of Mental Health (NIMH)|