NCT02997657

Brief Summary

Positive Psychotherapy for Smoking Cessation (PPT-S) addresses an array of risk factors for poor smoking outcomes (low positive affect, depressive symptoms, and cynical cognitions), while also providing skills that may buffer against stress and negative affect. The overall objective of this project is to conduct a randomized controlled trial to test the efficacy of PPT-S, enhanced with text messaging, compared to a time-matched behavioral smoking cessation treatment. Participants in both treatment conditions will receive nicotine replacement therapy and a validated text-messaging intervention for smoking cessation that monitors progress in quitting smoking and extends smoking counseling outside of the individual face-to-face context.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
271

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2016

Longer than P75 for not_applicable

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

Study Start

First participant enrolled

September 1, 2016

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

December 5, 2016

Completed
15 days until next milestone

First Posted

Study publicly available on registry

December 20, 2016

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 15, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 15, 2021

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

March 1, 2023

Completed
Last Updated

March 1, 2023

Status Verified

February 1, 2023

Enrollment Period

5.2 years

First QC Date

December 5, 2016

Results QC Date

December 22, 2022

Last Update Submit

February 6, 2023

Conditions

Outcome Measures

Primary Outcomes (4)

  • 7-day Point Prevalence Smoking Abstinence at 12 Weeks

    Self-reported smoking abstinence biochemically confirmed with CO and cotinine

    12 weeks

  • 7-day Point Prevalence Smoking Abstinence at 26 Weeks

    Self-reported smoking abstinence biochemically confirmed with CO and cotinine

    26 weeks

  • 7-day Point Prevalence Smoking Abstinence at 52 Weeks

    Self-reported smoking abstinence biochemically confirmed with CO and cotinine

    52 weeks

  • Continuous Smoking Abstinence

    Self-reported continuous abstinence from cigarette smoking from quit date through the 52-week follow-up biochemically confirmed at 12, 26, and 52 weeks

    52 weeks

Secondary Outcomes (3)

  • Engagement in PPT-consistent Quitting Strategies

    During treatment - weeks 1-4 after quit date

  • Residual Attraction to Smoking

    At end of treatment (4 weeks after quit date)

  • Self-efficacy for Resisting Smoking

    At end of treatment (4 weeks after quit date)

Study Arms (2)

Positive Psychotherapy for Smoking Cessation

EXPERIMENTAL

Smoking cessation treatment that incorporates exercises and text messages derived from positive psychology interventions that are designed to boost positive moods, cognitions, and behaviors.

Behavioral: Positive PsychotherapyBehavioral: Standard smoking cessation counseling

Standard smoking cessation treatment

ACTIVE COMPARATOR

Smoking cessation counseling that provides support and problem solving skills for avoiding smoking.

Behavioral: Standard smoking cessation counseling

Interventions

Exercises designed to boost moods, positive behaviors, and positive cognitions.

Positive Psychotherapy for Smoking Cessation

Counseling designed to provide support and problem solving for smoking cessation

Positive Psychotherapy for Smoking CessationStandard smoking cessation treatment

Eligibility Criteria

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

You may qualify if:

  • be 18 years of age or older
  • smoke at least 5 cigarettes per day for longer than one year with no current regular use of other nicotine/tobacco products including e-cigarettes
  • have a baseline carbon monoxide level of at least 4 ppm
  • be willing to use the nicotine patch
  • report at least a 5 on a 0 to 10 scale rating the importance of quitting smoking (where 10 = extremely important);
  • have an active cell phone and be willing to send and receive text messages for the duration of the intervention.

You may not qualify if:

  • \. Contact study site for details

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Partners Healthcare and Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

Center for Alcohol and Addiction Studies, Brown University

Providence, Rhode Island, 02912, United States

Location

MeSH Terms

Conditions

Smoking Cessation

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Results Point of Contact

Title
Christopher Kahler
Organization
Brown University School of Public Health

Study Officials

  • Christopher Kahler, PhD

    Brown University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
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
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 5, 2016

First Posted

December 20, 2016

Study Start

September 1, 2016

Primary Completion

November 15, 2021

Study Completion

November 15, 2021

Last Updated

March 1, 2023

Results First Posted

March 1, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will not share

Locations