At a glance
ClinicalIndex Comparison RecordN/ACompleted· 89 enrolled
Drug / intervention
Cigarette smoking +1 morebehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Smoking, Neurocircuitry and Genes in Adult ADHD
In Brief
An observational study evaluating Cigarette smoking and Abstinence for Smoking and 2 related conditions. Completed, enrolled 89 participants across 1 site.
Detailed Summary
The study investigated the underlying mechanisms of smoking in young adults by examining the associations between smoking, brain activity, dopamine genes, and attention deficit hyperactivity disorder (ADHD).
Study Details
Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsSmoking, Withdrawal Nicotine, ADHD
CountriesUnited States
CollaboratorsNational Institute on Drug Abuse (NIDA)
Timeline
N/ACompletedFinished
200920102011201220132014201520162017201820192020202120222023202420252026
First PostedJun 2009
Enrollment StartJul 2009
Primary CompletionJan 2016
Study CompletionJun 2016
TodayJul 2026
First PostedJun 8, 2009
Enrollment StartJul 1, 2009
Primary CompletionJan 1, 2016
Study CompletionJun 1, 2016
TodayJul 2, 2026
Enrollment to primary: 6.5 yearsPosted 17.1 years ago
Interventions
Cigarette smokingbehavioral
Participants had an fMRI scan during an experimental task consisting of mathematical problems after smoking a cigarette.
Abstinencebehavioral
Participants had an fMRI scan during an experimental task consisting of mathematical problems after smoking abstinence.