Dopamine and Insulin Resistance
Public ClinicalTrials.gov record NCT00802204. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Dopamine Receptor Availability and Insulin Resistance
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Obese individuals have fewer striatal dopamine type 2 receptors (DRD2) than normal weight individuals. Lower DRD2 levels are associated with addiction and a decreased sense of pleasure.Obesity is also associated with insulin resistance (poor insulin action).We propose that insulin resistance and low DRD2 are associated. Using PET imaging,we aim to determine DRD2 binding potential (BP) in the brain is associated with insulin resistance and neuroendocrine hormone levels. Obese participants will be compared to lean, gender and age similar participants. We also aim to determine the effect of caloric restriction on DRD2 BP in obese subjects
Study identification
- NCT ID
- NCT00802204
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 28 participants
Conditions and interventions
Conditions
Interventions
- PET scan Radiation
- Oral glucose tolerance test Procedure
- MRI Procedure
- Psychological scales to assess attitudes and behaviors related to eating and quality of life Behavioral
- Caloric Restriction Other
Radiation · Procedure · Behavioral + 1 more
Eligibility (public fields only)
- Age range
- 18 Years to 60 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 30, 2008
- Primary completion
- Mar 31, 2011
- Completion
- Nov 30, 2012
- Last update posted
- May 9, 2017
2008 – 2012
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Vanderbilt University Medical Center | Nashville | Tennessee | 37232 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00802204, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 9, 2017 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00802204 live on ClinicalTrials.gov.