Study Stopped
unanticipated difficulty with enrollment
Self-activation in Individuals With and Without Nicotine Dependence
Self-activation of Reward-related Brain Regions in Individuals With and Without Nicotine Dependence
3 other identifiers
interventional
46
1 country
1
Brief Summary
The purpose of this study is to see if a non-medication intervention can increase motivation and reward processing to non-drug reward cues (for example, a picture of one's favorite food) in individuals with and without nicotine dependence by observing brain activity using electroencephalography (EEG) and/or functional magnetic resonance imaging (fMRI). The investigators hypothesize that learning to increase brain activity to non-drug cues may improve reward responses and motivation to non-drug cues, and for individuals who smoke, may eventually result in improved smoking cessation outcomes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Feb 2018
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 26, 2017
CompletedFirst Posted
Study publicly available on registry
May 31, 2017
CompletedStudy Start
First participant enrolled
February 28, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 28, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
July 5, 2022
CompletedResults Posted
Study results publicly available
September 5, 2024
CompletedSeptember 5, 2024
August 1, 2024
4.3 years
May 26, 2017
May 13, 2024
August 30, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Percent Change in Reward-related Brain Activation as Measured by fMRI
The investigators will examine the change in brain activation in the target region (e.g., VTA) during the task. This includes prior to, during, and following real-time neurofeedback. Reported is the percent signal change from baseline (last 3 volumes of prior count condition).
Changes will be assessed across the task (~30 minutes) during the neurofeedback visit
Change in Reward-related Brain Activation as Measured by EEG Ratio of Beta to Theta Power
The investigators will examine the change in brain activation in the target region (e.g., VTA) during the task. This includes prior to, during, and following real-time neurofeedback. Reported here is the change from baseline (prior to real-time neurofeedback) and \~30 minutes following real-time neurofeedback. The ratio of Beta to Theta power indicates the level of active brainwave activity (Beta) versus the level of resting brainwave activity (Theta).
Baseline (prior to real-time neurofeedback) and ~30 minutes following real-time neurofeedback
Secondary Outcomes (2)
Dopamine Availability
Collected once during the screening visit
Onset to Smoking a Cigarette
up to 30 minutes following the neurofeedback session
Study Arms (2)
Reward-related Brain Region Feedback
EXPERIMENTALParticipants in this group will receive neurofeedback from a reward-related brain area (e.g., VTA, PFC) using EEG and/or fMRI during the experiment.
Noise Control
SHAM COMPARATORParticipants in this group will receive sham neurofeedback. Participants will be debriefed at the end of the study.
Interventions
During part of the task, a feedback display (e.g., thermometer stimulus) will be used to display the average brain activity for each participant. This signal will be acquired \~ every 1 second during the neurofeedback session and will dynamically update to reflect ongoing changes in brain activity. This continuously updated display is the primary feedback mechanism provided to the participant.
Eligibility Criteria
You may qualify if:
- years of age
- Right handed
- In good general health
- Male or Female
- For ND individuals: Self-reported smoking ≥ 5 combustible cigarettes per day
- For ND individuals: Afternoon expired CO concentration of ≥ 8 ppm
- For ND individuals: Is willing and able to abstain from smoking for a few hours
You may not qualify if:
- History of chronic/significant medical condition
- Current or past 6 month use of prescription medications for psychiatric conditions (e.g., depression, anxiety)
- Current or past 6 month diagnosis of anxiety, bipolar disorder, depression, OCD, schizophrenia, psychosis, or personality disorder.
- Current substance abuse or dependence or history within the last 6 months (other than nicotine for ND individuals)
- For ND individuals: Positive drug test for anything other than marijuana
- For ND individuals: Currently on nicotine replacement therapy
- For ND individuals: Individuals who role their own cigarettes
- For ND individuals: Daily cannabis use
- For ND individuals: Consume more than 21 alcoholic drinks per week
- For ND individuals: Use harder drugs (e.g., cocaine, methamphetamine) more than 10 times per year
- For ND individuals: Currently taking medication that directly acts on the dopamine system (e.g., L-DOPA).
- Inability to understand written and/or spoken English language
- For MRI subjects: Claustrophobia or other contraindications to MRI scanning
- For MRI subjects: If female, pregnancy as determined by urine pregnancy test on the day of MRI scanning
- For MRI subjects: Presence of any metal in the body (e.g., implant, non-removable piercing, metal IUD)
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Duke Universitylead
- National Institutes of Health (NIH)collaborator
- Brain & Behavior Research Foundationcollaborator
- National Center for Advancing Translational Sciences (NCATS)collaborator
Study Sites (1)
Center for Cognitive Neuroscience
Durham, North Carolina, 27708, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- R. Alison Adcock, MD, PhD
- Organization
- Duke University
Study Officials
- PRINCIPAL INVESTIGATOR
R. Alison Adcock, MD, PhD
Duke University
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 26, 2017
First Posted
May 31, 2017
Study Start
February 28, 2018
Primary Completion
June 28, 2022
Study Completion
July 5, 2022
Last Updated
September 5, 2024
Results First Posted
September 5, 2024
Record last verified: 2024-08
Data Sharing
- IPD Sharing
- Will share
We plan to upload the fMRI statistical image maps on NeuroVault. We will do so after data collection is complete.