NCT00408265.

Trial name or title	Smoking cessation in substance abuse treatment patients: a feasibility study
Methods	Open‐label RCT
Participants	Substance‐abusing men (N not given)
Interventions	Self‐help materials vs self‐help materials + CM component, i.e. rewards equivalent to USD 1, USD 20, USD 100 for validated abstinence Participants checked 4 times a week in weeks 1 to 4, twice a week in weeks 5 to 8, weekly in weeks 9 to 12. Follow‐ups at 1, 3 and 6 months following TQD
Outcomes	Primary: % negative CO readings; % negative cotinine readings; longest period of continuous abstinence Secondary: Self‐reported smoking; objective substance use; self‐reported substance use; treatment retention
Starting date	January 2004 to March 2007
Contact information	Sheila M Alessi (salessi@uchc.edu)
Notes