NCT03156660

Brief Summary

The study aims to randomize 400 participants to 1 of 3 arms: a) a weight stability intervention prior to smoking cessation (Group 1); b) a weight loss intervention prior to smoking cessation (Group 2); or c) a self-guided weight management prior to cessation (Group 3) and to determine the efficacy of the interventions on preventing weight gain at 12 month follow-up. All 3 conditions receive a highly efficacious behavioral smoking cessation program and 6 months of varenicline pharmacotherapy (ChantixTM), the most efficacious medication for smoking cessation.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
305

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

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

May 12, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 17, 2017

Completed
7 months until next milestone

Study Start

First participant enrolled

November 30, 2017

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 12, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 12, 2022

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

April 21, 2023

Completed
Last Updated

April 21, 2023

Status Verified

April 1, 2022

Enrollment Period

4.3 years

First QC Date

May 12, 2017

Results QC Date

March 23, 2023

Last Update Submit

April 19, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Weight

    At all measurement visits, weight will be recorded in kilograms. Weight will be measured on a calibrated digital scale in duplicate, with the participant wearing light clothing and no shoes.

    12 months from randomization

  • Point Prevalence Tobacco Abstinence

    Point prevalence (7 days without a cigarette, "not even a puff") is an appropriate measure in measuring long term outcome in cessation induction trials.

    12 months from randomization

Study Arms (3)

Weight gain prevention (Group 1)

EXPERIMENTAL

Small Changes weight stability intervention

Behavioral: Weight gain prevention (Group 1)

Weight loss intervention (Group 2)

EXPERIMENTAL

Look AHEAD weight loss intervention

Behavioral: Weight loss intervention (Group 2)

Self-guided intervention (Group 3)

ACTIVE COMPARATOR

Self-guided weight management with the EatingWell Diet book

Behavioral: Self-guided intervention (Group 3)

Interventions

Participants will be asked to keep their weight stable during the initial 8 weeks of the study. Intervention Components: 1. Lesson materials adapted from the Small Changes intervention, which will provide guidance for meeting the goals of this intervention (i.e., increasing steps by 2000 steps per day, making one Small dietary Change each day). 2. Daily self-monitoring of steps and number of Small Changes 3. Daily weight self-monitoring on the BodyTraceTM e-scale 4. Fit Bit Alta activity trackers to self-monitor steps

Weight gain prevention (Group 1)

Participants will be asked to achieve a weight loss goal of at least 5% of their baseline weight by week 8. Intervention Components: 1. Tailored calorie and fat goals based on their baseline weight. 2. Daily dietary intake and physical activity self-monitoring using a website or app. 3. Daily weight self-monitoring on the BodyTraceTM e-scale 4. Lesson materials for each session, drawn from the Look AHEAD intensive lifestyle intervention 5. Meal replacements for two meals and one snack for 8 weeks as a method to achieve the study's calorie and fat goals and as a strategy to control portions 6. Graded physical activity goals of 175 minutes of moderate intensity exercise (e.g., brisk walking) per week, or 10,000 steps per day 7. Fit Bit Alta activity trackers to self-monitor steps

Weight loss intervention (Group 2)

Participants randomized to Group 3 will wait for 8 weeks before initiating the same smoking cessation intervention as the other two conditions, while they review the provided weight management focused book. Intervention Components: 1. EatingWell Diet book. 2. Daily weight self-monitoring on the BodyTraceTM e-scale

Self-guided intervention (Group 3)

Eligibility Criteria

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

You may qualify if:

  • Participants must wish to quit smoking in the next 30 days
  • Have smoked 5 or more cigarettes a day for at least 1 year
  • Participants must be 18 years or older as the safety and efficacy of varenicline therapy has not been established for pediatric patients
  • Participants must have a BMI of 22 kg/m2 or greater, as it would not be recommended to have those who are underweight or the lower end of the normal BMI range attempt a 5% weight loss (if assigned to the Group 2 condition)
  • Participants must have access to a telephone and daily access to email, if using a cell phone, participants must be willing to use their cell phone minutes for weekly phone interventions
  • Participants must have the ability to understand consent process in English
  • If female and of childbearing age, participant must have a negative pregnancy test and must agree to use contraception during participation in the study
  • All participants must be willing to be randomized to the study conditions and wait eight weeks prior to beginning smoking cessation (during which they will participate in the weight management intervention to which they are assigned).
  • Participants must have BP \< 150/95 and a heart rate of \>40 beats per minute and \<120 beats per minute.

You may not qualify if:

  • Participants must not have a known contraindication, allergy or hypersensitivity to varenicline therapy
  • Participants must not currently (in the previous 30 days) be participating in other behavioral or pharmacologic weight or smoking cessation interventions
  • Participants must not have had weight loss surgery (hx of gastric bypass, stomach stapling or banding)
  • Participants must not have lost \> or equal to10 lbs in the past 6 months
  • Participants must not be taking a medication that impacts weight
  • Participants must not have used an investigational drug within the last 30 days
  • Participants must not have current suicidal thoughts or have a lifetime history of a suicide attempt as defined by the Columbia-Suicide Severity Rating Scale (C-SSRS)
  • Participants must not self-report a history of psychosis, bipolar disorder, or anorexia nervosa
  • Participants must not have self-reported current alcohol abuse or illicit substance use
  • Participants must not have kidney or liver disease, unstable cardiovascular conditions, HIV, or history of cancer in last 5 years
  • Participants must not have another member of their household already participating in this study
  • Participants must not be currently pregnant or lactating or planning to become pregnant in the next 12 months, or have been pregnant within the last 6 months
  • Weight limit of 385 pounds

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Tennessee Health Science Center

Memphis, Tennessee, 38105, United States

Location

Related Publications (2)

  • Pebley K, Bursac Z, Klesges RC, Ebbert JO, Womack CR, Graber J, Little MA, Derefinko KJ, Krukowski RA. A randomized controlled trial to reduce post-cessation weight gain. Int J Obes (Lond). 2023 Jun;47(6):471-478. doi: 10.1038/s41366-023-01286-5. Epub 2023 Feb 25.

  • Hartmann-Boyce J, Theodoulou A, Farley A, Hajek P, Lycett D, Jones LL, Kudlek L, Heath L, Hajizadeh A, Schenkels M, Aveyard P. Interventions for preventing weight gain after smoking cessation. Cochrane Database Syst Rev. 2021 Oct 6;10(10):CD006219. doi: 10.1002/14651858.CD006219.pub4.

MeSH Terms

Conditions

Body Weight ChangesSmoking Cessation

Condition Hierarchy (Ancestors)

Body WeightSigns and SymptomsPathological Conditions, Signs and SymptomsHealth BehaviorBehavior

Results Point of Contact

Title
Dr. Rebecca Krukowski
Organization
University of Virginia

Study Officials

  • Rebecca Krukowski, PhD

    University of Tennessee

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 12, 2017

First Posted

May 17, 2017

Study Start

November 30, 2017

Primary Completion

March 12, 2022

Study Completion

March 12, 2022

Last Updated

April 21, 2023

Results First Posted

April 21, 2023

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will share

It is anticipated that a cleaned data set of study-specific data will be provided within two years following the termination of the study for the data archive and this data set would be made public. Confidentiality of individual participants would be maintained with all releases of data. The final study analytical database would be processed according to HIPAA definitions for public data sharing. Documentation would be provided along with the data sharing file that includes but is not limited to: data dictionary, data code book, valid variable ranges (where provided), the protocol, procedure and operational manuals, intervention manual or programs and any electronic versions of any paper forms that were used in data collection.

Time Frame
Two years following the termination of the study
Access Criteria
Upon reasonable request to the principal investigator, Rebecca Krukowski

Locations