Overview
- The Penn State-led randomized, double-blind study, published Tuesday in JAMA Network Open, found daily smokers using 5% nicotine pods were about three times more likely to quit within six weeks than those using identical nicotine-free devices.
- Researchers enrolled 104 adult smokers, assigned them to nicotine or placebo pod-based e-cigarettes, instructed a full switch from cigarettes, and followed participants for six weeks with a 10-week check.
- Both groups showed lower exposure to tobacco-related chemicals, including the carcinogen marker NNAL, with larger reductions in the nicotine group even though some between-group differences lost statistical significance after adjustment.
- The quit-rate gap held at the 10-week follow-up, and those using nicotine pods reported fewer cravings and withdrawal symptoms, suggesting the nicotine delivery helped them stay off cigarettes.
- Sixty-nine people completed the protocol, a typical cessation-study drop-off, and the federally funded team stressed the short duration, small sample, and that findings do not imply e-cigarettes are safe or appropriate for non-smokers, calling for larger, longer trials.