140
Participants
Start Date
September 30, 2015
Primary Completion Date
August 31, 2018
Study Completion Date
August 31, 2018
Ramelteon
Placebo
Center for Interdisciplinary Research on Nicotine Addiction, School of Medicine, University of Pennsylvania, Philadelphia
National Institute on Drug Abuse (NIDA)
NIH
National Institutes of Health (NIH)
NIH
University of Pennsylvania
OTHER