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Completed No phase listed Observational

Effect of Functional Genetic Polymorphisms on Brain Morphology and Function

ClinicalTrials.gov ID: NCT01035723

Public ClinicalTrials.gov record NCT01035723. 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.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 3:05 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Effect of Functional Genetic Polymorphisms on Brain Morphology

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Background: \- New research on genetics and the human genome has helped to identify certain genes that affect specific parts of the brain, including the parts that may be involved in drug use and dependency. Researchers are interested in studying both genetic information and brain activity to better understand variations in brain function among individuals. Objectives: \- To study brain activity in conjunction with specific genetic information provided by healthy volunteers including smokers, non-smokers, people with drug dependence, and those who do not have any dependence on any substance. Eligibility: \- Healthy volunteers between 18 and 50 years of age. Design: * This is an 8 10 hour study which may be completed in 1, 2, or 3 visits. * Participants will complete questionnaires about emotional and psychological responses to different situations, including stressful situations. * Participants will have a training session in a mock (fake) scanner to practice tasks to be completed in the real scanner. * Participants will have the following two types of magnetic resonance imaging (MRI) scans in one scan session of the brain: * A structural MRI scan to provide basic information about each participant's brain. * A functional MRI scanning session, in which participants will perform a memory task to provide information about brain activity. * Participants will provide blood samples for research and testing....

Study identification

NCT ID
NCT01035723
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Enrollment
221 participants

Conditions and interventions

Conditions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years to 50 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 12, 2005
Primary completion
Not listed
Completion
Feb 24, 2013
Last update posted
Dec 15, 2019

2005 – 2013

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 NCT01035723, 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 15, 2019 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01035723 live on ClinicalTrials.gov.

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