Cycle-Smart quitting: new study aims to help women kick the habit

NCT ID NCT05515354

First seen Mar 29, 2026 · Last updated Jun 14, 2026 · Updated 13 times

Summary

This study tests whether starting a quit attempt during the first half of the menstrual cycle (follicular phase) makes it easier for women to stop smoking. About 1,200 women who smoke daily and have regular periods will use nicotine patches or gum and be randomly assigned to quit in the follicular phase, luteal phase, or without cycle timing. The goal is to see if cycle-aligned quitting boosts long-term success.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Centre for Addiction and Mental Health, Nicotine Dependence Clinic

    RECRUITING

    Toronto, Ontario, M6J 1H4, Canada

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

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