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Clinical trialNCT00696371CompletedObservational

PET Imaging of Peripheral Benzodiazepine Receptors

SponsorNational Institute of Mental Health (NIMH)Enrollment15Healthy
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This study will use positron emission tomography (PET) to measure a receptor in the brain that is involved in inflammation. It will test two radioactive chemicals used in the procedure to see if the newer chemical, \[(11)C\]B, is as good or better than the older one, \[(11)C\]A, for measuring brain inflammation. Healthy volunteers 18 years of age and older may be eligible for this study. Participants undergo an evaluation, \[(11)C\]A PET scan, \[(11)C\]B PET scan and magnetic resonance imaging (MRI), as follows: Evaluation Medical history and physical examination, blood and urine tests PET scans * \[(11)C\]A scan. A catheter (plastic tube) is placed in an arm vein for injection of the \[(11)C\]A isotope. Some patients also have a catheter placed in an artery in the wrist to collect arterial blood samples during the scan. Subjects then lie on the scanner bed and a special mask is fitted to the head to help keep the subject s head still during the procedure. Following an 8-minute scan to calibrate the scanner, the \[(11)C\]A is injected into the catheter in the vein and pictures are taken that show where chemicals related to inflammation are present. The procedure takes about 2.5 hours. * \[(11)C\]B scan. The procedure is the same as above for \[(11)C\]A, except the isotope used is \[(11)C\]B. MRI scan. This test uses a strong magnetic field and radio waves to obtain images of body organs and tissues. The subject lies on a table that can slide in and out of the scanner (a metal cylinder), wearing earplugs to muffle loud noises that occur during the scan. ...
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

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Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • National Institutes of Health Clinical Center, 9000 Rockville Pike

    Bethesda, Maryland, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
6 Jun 2008
Primary completion
—
Completion
19 Aug 2014
Last update posted
17 Dec 2019
Registered enrollment
15
Registry id
NCT00696371
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.