216
Participants
Start Date
December 31, 2012
Primary Completion Date
July 27, 2017
Study Completion Date
July 27, 2017
Placebo
Placebo - subjects will take 200 mg twice daily orally (approximately 8am and 8pm) for twelve weeks starting seven days prior to the assigned quit date.
Progesterone
The progesterone will be given in the form of an active micronized natural progesterone (Prometrium). All subjects will take 200 mg twice daily orally (approximately 8am and 8pm) for twelve weeks starting seven days prior to the assigned quit date.
Smoking Cessation Behavioral Counseling
Subjects will receive weekly smoking cessation behavioral counseling.
Delaware Clinical Research Unit, University of Minnesota, Minneapolis
National Institute on Drug Abuse (NIDA)
NIH
University of Minnesota
OTHER