NCT04188873

Brief Summary

This project will use the Multiphase Optimization Strategy (MOST) to guide the development of optimized treatment strategies for the two most effective smoking cessation medications (Combination Nicotine Replacement \[C-NRT\] and varenicline). The investigators will recruit daily smokers from primary care to participate in a fully crossed, 2x2x2x2 factorial experiment (N=608) that evaluates 4 different factors: 1) Medication Type (Varenicline vs. C-NRT), 2) Preparation Medication (4 Weeks vs. Standard), 3) Medication Duration (Extended \[24 weeks\] vs. Standard \[12 weeks\]); and 4) Counseling (Intensive vs. Minimal). Participants will complete assessments one week pre-quit and then assessments of smoking status, treatment use, side effects, potential treatment mechanisms (e.g., withdrawal, self-efficacy) during the first week post-target quit date (TQD) and at Weeks 2, 4, 12, 20, 26, and 52 post-target quit date. These data will be used to examine the main and interactive effects of these four factors on various outcomes, with biochemically confirmed 12-month abstinence serving as the primary outcome. These data will also be used to determine which factors and combinations of factors are most effective with regard to 12-month biochemically confirmed abstinence and cost, thereby identifying optimized varenicline and C-NRT treatments, with each developed to yield especially great benefit. These optimized treatments will then be tested in the Optimized Care Project. The investigators will also examine the relative effects of each medication on particular outcomes (e.g., 12-month abstinence).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
529

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Dec 2020

Longer than P75 for phase_4

Geographic Reach
1 country

2 active sites

Status
completed

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

December 4, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 6, 2019

Completed
1 year until next milestone

Study Start

First participant enrolled

December 10, 2020

Completed
4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 8, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 8, 2025

Completed
Last Updated

July 24, 2025

Status Verified

July 1, 2025

Enrollment Period

4.4 years

First QC Date

December 4, 2019

Last Update Submit

July 21, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Intent-to-treat biochemically verified 7-day point prevalence abstinence

    Participants will be asked to report on any smoking in the last seven days at a follow-up phone interview scheduled to occur 12-months post-target quit day (post-TQD). Those claiming complete abstinence (not even a puff from a cigarette) in the last seven days at this follow-up interview will be asked to provide a saliva sample for biochemical verification of self-reported abstinence via cotinine testing. Participants who report abstinence in the last 7 days at this visit but have a cotinine level \>10ng/mL or who do not have provide a cotinine result will be considered to be smoking.

    12 months post-target quit day (TQD)

Secondary Outcomes (1)

  • Cost-effectiveness

    12 months post-target quit day (TQD)

Study Arms (16)

12-week Varenicline with Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 1 week prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily until 11 weeks post-TQD. Participants randomized to this intervention will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Standard Duration VareniclineBehavioral: Minimal Counseling

12-week Varenicline with 4-Week Preparation Varenicline and Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 4 week prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily for the next 3 weeks pre-TQD and until 12 weeks post-TQD. Participants randomized to this intervention will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Preparation Varenicline and Standard Duration VareniclineBehavioral: Minimal Counseling

24-week Varenicline with Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 1 week prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily until 23 weeks post-TQD. Participants randomized to this intervention will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Extended Duration VareniclineBehavioral: Minimal Counseling

24-week Varenicline with 4-Week Preparation Varenicline and Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 4 weeks prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily for the next 3 weeks pre-TQD and until 24 weeks post-TQD. Participants randomized to this intervention will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Preparation Varenicline and Extended Duration VareniclineBehavioral: Minimal Counseling

12-week Varenicline with Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 1 week prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily until 11 weeks post-TQD. Participants randomized to this intervention will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Standard Duration VareniclineBehavioral: Intensive Counseling

12-week Varenicline with 4-Week Preparation Varenicline and Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 4 week prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily for the next 3 weeks pre-TQD and until 11 weeks post-TQD. Participants randomized to this intervention will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Preparation Varenicline and Standard Duration VareniclineBehavioral: Intensive Counseling

24-week Varenicline with Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 1 week prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily until 23 weeks post-TQD. Participants randomized to this intervention will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Extended Duration VareniclineBehavioral: Intensive Counseling

24-week Varenicline with 4-Week Preparation Varenicline and Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive one 0.5 mg pill for the first 3 days, starting 4 weeks prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily for the next 3 weeks pre-TQD and until 24 weeks post-TQD. Participants randomized to this intervention will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Preparation Varenicline and Extended Duration VareniclineBehavioral: Intensive Counseling

12-week C-NRT with Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 12 weeks of nicotine patches and nicotine mini-lozenges to use starting on their quit day. Participants who smoke more than 10 cigarettes/day will start with a 21 mg patch for 8 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 10 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants randomized to this intervention will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Standard Duration Combination NRTBehavioral: Minimal Counseling

12-week C-NRT with 4-Week Preparation C-NRT and Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 14 mg patches starting 4 weeks prior to the target quit day (TQD). Then, starting on the TQD, participants will receive 12 weeks of nicotine patches and nicotine mini-lozenges. Participants who smoke \>10 cigarettes/day will start with a 21 mg patch for 8 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 10 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants will receive a brief 15-30 minute phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Preparation Combination NRT and Standard Duration Combination NRTBehavioral: Minimal Counseling

24-week C-NRT with Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 24 weeks of nicotine patches and nicotine mini-lozenges, starting on the target quit day (TQD). Participants who smoke more than 10 cigarettes/day will start with a 21 mg patch for 20 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 22 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants randomized to this intervention will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Extended Duration Combination NRTBehavioral: Minimal Counseling

24-week C-NRT with 4-Week Preparation C-NRT and Minimal Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 14 mg patches starting 4 weeks prior to the target quit day (TQD). Then, starting on the TQD, participants will receive 24 weeks of nicotine patches and nicotine mini-lozenges. Participants who smoke more than 10 cigarettes/day will start with a 21 mg patch for 20 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 22 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants will receive a brief (15-30 minute) phone or video counseling session 1 week prior to the TQD to promote engagement with free mobile health resources and then a brief (10-20 minute) follow-up phone or video session during the first week post-TQD to mimic a nurse or clinician follow-up after a quit attempt.

Drug: Preparation Combination NRT and Extended Duration Combination NRTBehavioral: Minimal Counseling

12-week C-NRT with Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 12 weeks of nicotine patches and nicotine mini-lozenges to use starting on their quit day. Participants who smoke more than 10 cigarettes/day will start with a 21 mg patch for 8 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 10 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants randomized to this intervention will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Standard Duration Combination NRTBehavioral: Intensive Counseling

12-week C-NRT with 4-Week Preparation C-NRT and Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 14 mg patches starting 4 weeks prior to the target quit day (TQD). Starting on the TQD, participants will receive 12 weeks of nicotine patches and nicotine mini-lozenges. Participants who smoke \>10 cigarettes/day will start with a 21 mg patch for 8 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 10 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Preparation Combination NRT and Standard Duration Combination NRTBehavioral: Intensive Counseling

24-week C-NRT with Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 24 weeks of nicotine patches and nicotine mini-lozenges, starting on the target quit day (TQD). Participants who smoke more than 10 cigarettes/day will start with a 21 mg patch for 20 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 22 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants randomized to this intervention will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Extended Duration Combination NRTBehavioral: Intensive Counseling

24-week C-NRT with 4-Week Preparation C-NRT and Intensive Counseling

ACTIVE COMPARATOR

Participants randomized to this intervention will receive 14 mg patches starting 4 weeks prior to the target quit day (TQD). Starting on the TQD, participants will receive 24 weeks of nicotine patches and nicotine mini-lozenges. Participants who smoke \>10 cigarettes/day will start with a 21 mg patch for 20 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 22 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges. Participants will receive four 15-20 minute phone or video counseling sessions (1 prior to the TQD, 1 during the first week post-TQD and during Weeks 2 and 4 post-TQD). The counseling is designed to produce intra-treatment support and skill training, consistent with the Public Health Service (PHS) Clinical Practice Guideline.

Drug: Preparation Combination NRT and Extended Duration Combination NRTBehavioral: Intensive Counseling

Interventions

16 weeks of varenicline starting 4 weeks pre-quit

12-week Varenicline with 4-Week Preparation Varenicline and Intensive Counseling12-week Varenicline with 4-Week Preparation Varenicline and Minimal Counseling

28 weeks of varenicline starting 4 weeks pre-quit

24-week Varenicline with 4-Week Preparation Varenicline and Intensive Counseling24-week Varenicline with 4-Week Preparation Varenicline and Minimal Counseling

12 weeks of varenicline

12-week Varenicline with Intensive Counseling12-week Varenicline with Minimal Counseling

24 weeks of varenicline

24-week Varenicline with Intensive Counseling24-week Varenicline with Minimal Counseling

16 weeks of nicotine patch + nicotine mini-lozenge starting 4 weeks pre-quit

12-week C-NRT with 4-Week Preparation C-NRT and Intensive Counseling12-week C-NRT with 4-Week Preparation C-NRT and Minimal Counseling

28 weeks of nicotine patch + nicotine mini-lozenge starting 4 weeks pre-quit

24-week C-NRT with 4-Week Preparation C-NRT and Intensive Counseling24-week C-NRT with 4-Week Preparation C-NRT and Minimal Counseling

12 weeks of nicotine patch + nicotine mini-lozenge

12-week C-NRT with Intensive Counseling12-week C-NRT with Minimal Counseling

24 weeks of nicotine patch + nicotine mini-lozenge

24-week C-NRT with Intensive Counseling24-week C-NRT with Minimal Counseling

4 phone or video counseling sessions

12-week C-NRT with 4-Week Preparation C-NRT and Intensive Counseling12-week C-NRT with Intensive Counseling12-week Varenicline with 4-Week Preparation Varenicline and Intensive Counseling12-week Varenicline with Intensive Counseling24-week C-NRT with 4-Week Preparation C-NRT and Intensive Counseling24-week C-NRT with Intensive Counseling24-week Varenicline with 4-Week Preparation Varenicline and Intensive Counseling24-week Varenicline with Intensive Counseling

2 brief phone or video counseling sessions

12-week C-NRT with 4-Week Preparation C-NRT and Minimal Counseling12-week C-NRT with Minimal Counseling12-week Varenicline with 4-Week Preparation Varenicline and Minimal Counseling12-week Varenicline with Minimal Counseling24-week C-NRT with 4-Week Preparation C-NRT and Minimal Counseling24-week C-NRT with Minimal Counseling24-week Varenicline with 4-Week Preparation Varenicline and Minimal Counseling24-week Varenicline with Minimal Counseling

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Smoking \>4 cigarettes/day for the previous 6 months
  • Able to read, write, and speak English
  • If currently using nicotine replacement therapy (NRT), agreeing to use only study medication for the duration of the study
  • Medically eligible to use study medications
  • If the participant is a woman of childbearing potential, using an approved method of birth control during treatment

You may not qualify if:

  • Currently taking bupropion or varenicline
  • Suicidal ideation in the last 12 months or any suicide attempts in the past 10 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Wisconsin Center for Tobacco Research and Intervention

Madison, Wisconsin, 53711, United States

Location

UW Center for Tobacco Research and Intervention

Milwaukee, Wisconsin, 53233, United States

Location

Related Publications (1)

  • Theodoulou A, Chepkin SC, Ye W, Fanshawe TR, Bullen C, Hartmann-Boyce J, Livingstone-Banks J, Hajizadeh A, Lindson N. Different doses, durations and modes of delivery of nicotine replacement therapy for smoking cessation. Cochrane Database Syst Rev. 2023 Jun 19;6(6):CD013308. doi: 10.1002/14651858.CD013308.pub2.

MeSH Terms

Conditions

Tobacco Use Disorder

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Study Officials

  • Megan E Piper, PhD

    University of Wisconsin, Madison

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Model Details: Daily smokers will be recruited from primary care to participate in a fully crossed, 2x2x2x2 factorial experiment (N=608) that evaluates 4 different factors: 1) Medication Type (Varenicline vs. Combination NRT \[C-NRT\]), 2) Preparation Medication (4 Weeks vs. Standard), 3) Medication Duration (Extended \[24 weeks\] vs. Standard \[12 weeks\]); and 4) Counseling (Intensive vs. Minimal).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 4, 2019

First Posted

December 6, 2019

Study Start

December 10, 2020

Primary Completion

May 8, 2025

Study Completion

May 8, 2025

Last Updated

July 24, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will share

We will make the final de-identified datasets available in standard file formats by request from other researchers in a timely manner (no later than the acceptance for publication of the main findings from the final dataset).

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
After publication of the main findings
Access Criteria
Approval of a data request by the investigators

Locations