Smoking Cessation and Menstrual Cycle Phase
MC-NRT
Coordinating Smoking Cessation Treatment With Menstrual Cycle Phase to Improve Quit Outcomes: A Randomized Controlled Trial
1 other identifier
interventional
1,200
1 country
1
Brief Summary
Tobacco use is a risk factor for at least 20 types of cancer and remains the leading preventable cause of cancer in Canada. Smoking cessation is an important cancer prevention strategy for the close to 2 million Canadian women who currently smoke. However, findings from controlled trials and real-world clinical settings indicate that women have greater difficulty achieving abstinence following a quit attempt than men. There is some evidence that hormonal levels and fluctuations throughout the menstrual cycle (MC) may contribute to the greater difficulty women experience when trying to quit smoking. In this study, the start of a quit attempt using nicotine replacement therapy (NRT) will be targeted to specific phases of MC. It was hypothesized that starting a quit attempt during the first half of MC (follicular phase) will result in increased quit success compared to starting during the second half of MC (luteal phase) or the usual practice of not targeting quit start date to MC phase.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Nov 2022
Longer than P75 for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 23, 2022
CompletedFirst Posted
Study publicly available on registry
August 25, 2022
CompletedStudy Start
First participant enrolled
November 30, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2026
ExpectedMarch 19, 2026
March 1, 2026
3.4 years
August 23, 2022
March 17, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
7-day point prevalence of abstinence
Proportion of the sample that has been abstinent from smoking for 7 days at the time of assessment (i.e., managed to quit smoking on their target quit date).
7 days post-target quit date
Secondary Outcomes (2)
End-of-treatment 7-day point prevalence of abstinence
6 weeks post-target quit date
Follow-up 7-day point prevalence of abstinence
6 months post-target quit date
Study Arms (3)
Mid-Follicular Phase Target Quit Date
EXPERIMENTALParticipants will start their quit attempts during the mid-follicular phase of their MC (6-8 days post-onset of menses). Each participant will be provided with a range of appropriate dates based on the information about their menstrual cycle, and they will select a target quit date from the range. Participants will be receiving NRT and will have access to behavioral support for the following 6 weeks.
Mid-Luteal Phase Target Quit Date
EXPERIMENTALParticipants will start their quit attempts during the mid-luteal phase of their MC (6-8 days pre-onset of menses). Each participant will be provided with a range of appropriate dates based on the information about their menstrual cycle, and they will select a target quit date from the range. Participants will be receiving NRT and will have access to behavioral support for the following 6 weeks.
Randomly Selected Target Quit Date (Usual Care)
ACTIVE COMPARATORParticipants will start their quit attempts within 30 days of their enrollment into the study. They will select their target quit dates without regard for their MC. Participants will be receiving NRT and will have access to behavioral support for the following 6 weeks.
Interventions
Nicotine replacement therapy and abstinence from smoking are initiated at a specific period with regard to the menstrual cycle.
Nicotine patch and a choice of nicotine gum or lozenge (2 mg) for 6 weeks. Participants who smoke 10 or more cigarettes per day receive a package of 21 mg, 14 mg, and 7 mg nicotine patches. For participants who smoke 5-9 (inclusive) cigarettes per day, the package contains 14 mg and 7 mg nicotine patches.
Eligibility Criteria
You may qualify if:
- Must provide informed consent following the CAMH REDCap e-consent framework and procedures;
- Stated willingness to comply with all study procedures;
- Naturally cycling individuals with regular MCs (defined as length ranging 21 to 35 days over past 6 months);
- Daily smoker of ≥5 cigarettes per day (CPD) over past 6 months;
- Intention to quit smoking within the next 30 days and willing to make a quit attempt on their assigned TQD;
- Interested in using, and able to use, nicotine patches and gum or lozenge as a smoking cessation aid;
- Willing to provide a valid e-mail address to be used for study communications and to complete online questionnaires.
You may not qualify if:
- Current use of progesterone, estrogen, testosterone, or fertility treatment;
- Current use of nicotine replacement therapy or other smoking cessation medications (e.g., varenicline, bupropion);
- Use of hormonal contraceptives in the past 6 months (e.g., pill, patch, hormonal intrauterine device \[IUD\], ring);
- Pregnancy, or trying to become pregnant in the next 2-3 months;
- Known hypersensitivity or allergies to any of the components of the nicotine patch;
- Daily or almost daily use of cannabis in the past 6 months;
- Daily or almost daily use of tobacco or nicotine products other than cigarettes (e.g., smokeless tobacco, heat-not-burn products, e-cigarettes) in the past 6 months;
- Polycystic ovary syndrome diagnosis;
- Unstable psychiatric condition (including substance use disorder) which would compromise study compliance;
- Life threatening arrhythmias or severe/worsening angina pectoris;
- Myocardial infarction or cerebral vascular accident in the past 2 weeks; or
- Diagnosed with a terminal illness.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Centre for Addiction and Mental Health, Nicotine Dependence Clinic
Toronto, Ontario, M6J 1H4, Canada
Related Publications (10)
Carpenter MJ, Saladin ME, Leinbach AS, Larowe SD, Upadhyaya HP. Menstrual phase effects on smoking cessation: a pilot feasibility study. J Womens Health (Larchmt). 2008 Mar;17(2):293-301. doi: 10.1089/jwh.2007.0415.
PMID: 18321181BACKGROUNDFranklin TR, Ehrman R, Lynch KG, Harper D, Sciortino N, O'Brien CP, Childress AR. Menstrual cycle phase at quit date predicts smoking status in an NRT treatment trial: a retrospective analysis. J Womens Health (Larchmt). 2008 Mar;17(2):287-92. doi: 10.1089/jwh.2007.0423.
PMID: 18321180BACKGROUNDPiper ME, Cook JW, Schlam TR, Jorenby DE, Smith SS, Bolt DM, Loh WY. Gender, race, and education differences in abstinence rates among participants in two randomized smoking cessation trials. Nicotine Tob Res. 2010 Jun;12(6):647-57. doi: 10.1093/ntr/ntq067. Epub 2010 May 3.
PMID: 20439385BACKGROUNDPoirier AE, Ruan Y, Grevers X, Walter SD, Villeneuve PJ, Friedenreich CM, Brenner DR; ComPARe Study Team. Estimates of the current and future burden of cancer attributable to active and passive tobacco smoking in Canada. Prev Med. 2019 May;122:9-19. doi: 10.1016/j.ypmed.2019.03.015.
PMID: 31078177BACKGROUNDSaladin ME, McClure EA, Baker NL, Carpenter MJ, Ramakrishnan V, Hartwell KJ, Gray KM. Increasing progesterone levels are associated with smoking abstinence among free-cycling women smokers who receive brief pharmacotherapy. Nicotine Tob Res. 2015 Apr;17(4):398-406. doi: 10.1093/ntr/ntu262.
PMID: 25762749BACKGROUNDSmith PH, Bessette AJ, Weinberger AH, Sheffer CE, McKee SA. Sex/gender differences in smoking cessation: A review. Prev Med. 2016 Nov;92:135-140. doi: 10.1016/j.ypmed.2016.07.013. Epub 2016 Jul 26.
PMID: 27471021BACKGROUNDStatistics Canada. (2020). Smokers, by age group. Retrieved August 23, 2021, from https://www150.statcan.gc.ca/t1/tbl1/en/tv.action?pid=1310009610&pickMembers%5B0%5D=1.1&pickMembers%5B1%5D=3.3&cubeTimeFrame.startYear=2018&cubeTimeFrame.endYear=2019&referencePeriods=20180101%2C20190101
BACKGROUNDWorld Health Organization. (2020). Who report on cancer: Setting priorities, investing wisely and providing care for all. World Health Organization. Retrieved August 12, 2022, from https://www.who.int/publications-detail-redirect/9789240001299
BACKGROUNDWeinberger AH, Smith PH, Allen SS, Cosgrove KP, Saladin ME, Gray KM, Mazure CM, Wetherington CL, McKee SA. Systematic and meta-analytic review of research examining the impact of menstrual cycle phase and ovarian hormones on smoking and cessation. Nicotine Tob Res. 2015 Apr;17(4):407-21. doi: 10.1093/ntr/ntu249.
PMID: 25762750BACKGROUNDZawertailo L, Kabir T, Voci S, Tanzini E, Attwells S, Malat L, Veldhuizen S, Minian N, Dragonetti R, Melamed OC, Mei-Dan E, Selby P. Coordinating smoking cessation treatment with menstrual cycle phase to improve quit outcomes (MC-NRT): study protocol for a randomized controlled trial. Trials. 2023 Apr 1;24(1):251. doi: 10.1186/s13063-023-07196-1.
PMID: 37005655DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Laurie A Zawertailo, PhD
Centre for Addiction and Mental Health
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Senior Scientist
Study Record Dates
First Submitted
August 23, 2022
First Posted
August 25, 2022
Study Start
November 30, 2022
Primary Completion
April 30, 2026
Study Completion (Estimated)
December 31, 2026
Last Updated
March 19, 2026
Record last verified: 2026-03