Comparison of nicotine patch alone versus nicotine nasal spray alone versus a combination for treating smokers: a minimal intervention, randomized multicenter trial in a nonspecialized setting.

This multicenter, randomized, open-label clinical trial was conducted to determine whether the combined use of nicotine patch therapy and a nicotine nasal spray would improve smoking abstinence rates compared to either treatment alone, without behavioral counseling. Data were collected at 15 regional cancer control oncology centers within the North Central Cancer Treatment Group. Of the 1384 smokers randomized to the study, 20% were abstinent from smoking at 6 weeks and 8% were abstinent at 6 months.