Individual Differences in Reward and Impulse Control
Public ClinicalTrials.gov record NCT01621607. 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
Gene x Environment Interactions as Risk Factors for Addiction
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: \- The risk for becoming addicted to drugs varies among individual, even those using similar drugs in a similar way. It is not known why some people become addicted and others do not. Studies suggest that some genes may increase the risk of addiction. Negative life experiences may also affect the risk of addiction. Researchers want to test smokers and nonsmokers to study genetic and brain function traits that may lead to drug addiction. Objectives: \- To understand brain function in people who may be at a higher risk of drug addiction. Eligibility: * Healthy volunteers between 18 and 55 years of age. * Smokers (10 to 30 cigarettes per day for more than 2 years) and nonsmokers will be eligible. Design: * Participants will be screened with a physical exam and medical history. They will be tested for drug and alcohol use. A blood sample will be collected. * The study will involve one visit. Participants will have a magnetic resonance imaging (MRI) scan. * At the visit, participants will answer questions about their health and drug use habits. They will then be trained on the tasks they will do during the MRI scan. After the training, they will have the scan and perform the tasks. The scan and tasks will look at brain function related to rewards and impulsiveness. * Other computer tests will be given after the scan. These tests will measure learning, memory, and impulsiveness.
Study identification
- NCT ID
- NCT01621607
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 89 participants
Conditions and interventions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 55 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
- Jun 7, 2012
- Primary completion
- Not listed
- Completion
- Oct 2, 2017
- Last update posted
- Dec 8, 2019
2012 – 2017
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institute on Drug Abuse | Baltimore | Maryland | 21224 | — |
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 NCT01621607, 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 Dec 8, 2019 · Synced Sep 12, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01621607 live on ClinicalTrials.gov.