NCT05515354

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

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,200

participants targeted

Target at P75+ for phase_4

Timeline
7mo left

Started Nov 2022

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress87%
Nov 2022Dec 2026

First Submitted

Initial submission to the registry

August 23, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 25, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

November 30, 2022

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2026

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

March 19, 2026

Status Verified

March 1, 2026

Enrollment Period

3.4 years

First QC Date

August 23, 2022

Last Update Submit

March 17, 2026

Conditions

Keywords

Menstrual CycleOvarian HormonesSmoking Cessation TreatmentNicotine Replacement TherapyCancer PreventionRandomized Controlled TrialEstrogenProgesterone

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

EXPERIMENTAL

Participants 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.

Other: Timing of nicotine replacement therapy start dateDrug: Nicotine Replacement Therapy Agent

Mid-Luteal Phase Target Quit Date

EXPERIMENTAL

Participants 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.

Other: Timing of nicotine replacement therapy start dateDrug: Nicotine Replacement Therapy Agent

Randomly Selected Target Quit Date (Usual Care)

ACTIVE COMPARATOR

Participants 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.

Drug: Nicotine Replacement Therapy Agent

Interventions

Nicotine replacement therapy and abstinence from smoking are initiated at a specific period with regard to the menstrual cycle.

Also known as: Timing of target quit date
Mid-Follicular Phase Target Quit DateMid-Luteal Phase Target Quit Date

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.

Also known as: Nicotine Patch, Nicotine Gum, Nicotine Lozenge
Mid-Follicular Phase Target Quit DateMid-Luteal Phase Target Quit DateRandomly Selected Target Quit Date (Usual Care)

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

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

RECRUITING

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: 18321181BACKGROUND
  • Franklin 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: 18321180BACKGROUND
  • Piper 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: 20439385BACKGROUND
  • Poirier 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: 31078177BACKGROUND
  • Saladin 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: 25762749BACKGROUND
  • Smith 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: 27471021BACKGROUND
  • Statistics 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

    BACKGROUND
  • World 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

    BACKGROUND
  • Weinberger 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: 25762750BACKGROUND
  • Zawertailo 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.

MeSH Terms

Conditions

Tobacco Use DisorderTobacco SmokingSmoking CessationSubstance-Related Disorders

Interventions

Nicotine Replacement TherapyTobacco Use Cessation DevicesNicotine Chewing Gum

Condition Hierarchy (Ancestors)

Chemically-Induced DisordersMental DisordersSmokingBehaviorTobacco UseHealth Behavior

Intervention Hierarchy (Ancestors)

Drug TherapyTherapeuticsChewing GumPlant GumsBiopolymersPolymersMacromolecular SubstancesPolysaccharidesCarbohydratesCandyFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • Laurie A Zawertailo, PhD

    Centre for Addiction and Mental Health

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Laurie A Zawertailo, PhD

CONTACT

Tina Kabir, BMSc

CONTACT

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

Locations