NCT01162239.

Trial name or title	Maintaining nonsmoking
Methods	Setting: USA
Participants	271
Interventions	Pharmacotherapy: varenicline: 12 weeks, 1 mg bid 1. Participants have monthly meetings with medical staff 2. Participants receive monthly counselling with content based on a health education model 3. Participants receive monthly counselling with content based on a relapse prevention model plus access to ongoing medication treatment with varenicline 4. Participants receive monthly counselling with content based on a relapse prevention model
Outcomes	Abstinence at 12, 24, 52, 64, 104 months
Starting date	May 2010
Contact information	University of California. No PI listed
Notes