CClinicalTrials.gg
CompletedNCT01451814Updated Mar 18, 2015Results posted

Development of Positive Psychotherapy for Smoking Cessation

A Phase 2 interventional study of Positive Psychotherapy for smoking cessation and Nicotine polacrilex in Smoking, sponsored by Brown University. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-03-18.

Sponsored by Brown University · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
66
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The primary objective of this study is to test a manualized adaptation of positive psychotherapy (PPT) for smoking cessation (PPT-S). The investigators will conduct a preliminary randomized clinical trial (N = 80) to examine the feasibility, acceptability, and efficacy of PPT-S over 26 weeks of follow up in comparison to a standard smoking cessation treatment. Both treatments will be delivered in individual 6 sessions over 6 weeks, and will include provision of transdermal nicotine patch. The effect size estimates from this Stage 1b research will provide the foundation for a future application to conduct a large-scale, Stage II, randomized clinical trial.

02

Conditions studied

  • Smoking

Keywords

  • smoking cessation
03

In context

Lead sponsor

Brown University is the lead sponsor of 282 studies on the registry; 42 are open to participants now.

Of its 25 completed or terminated interventional studies of FDA-regulated products, 18 (72%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • smoke at least 5 cigarettes per day for longer than one year with no other ongoing tobacco product use
  • willing to use the transdermal nicotine patch
  • report at least a 5 on a 0 to 10 scale rating the importance of quitting smoking.

Exclusion criteria

Exclusion Criteria:

  • are currently experiencing psychotic symptoms, affective disorder (major depression, dysthymia, or mania) or substance use disorder (other than nicotine dependence)
  • taking prescribed psychotropic medication or receiving other forms of psychotherapy
  • concomitantly using other pharmacotherapies for smoking cessation
  • have any contraindications for use of the transdermal nicotine patch.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
66 participants (actual)

Study arms

  • Experimental
    Positive psychotherapy

    6 sessions of individual behavioral smoking cessation counseling that incorporates techniques from Positive Psychotherapy to increase positive affect and reduce negative affect prior to and after quitting smoking. Intervention includes 8 weeks of transdermal nicotine patch.

    Behavioral: Positive Psychotherapy for smoking cessation · Drug: Nicotine polacrilex · Behavioral: Behavioral smoking cessation treatment

  • Active comparator
    Standard treatment

    6 sessions of individual behavioral smoking cessation counseling with 8 weeks of transdermal nicotine patch. Inlcudes relaxation training to match time in the experimental condition

    Drug: Nicotine polacrilex · Behavioral: Relaxation training · Behavioral: Behavioral smoking cessation treatment

Interventions

  • BehavioralPositive Psychotherapy for smoking cessation

    6 sessions of individual behavioral smoking cessation counseling that incorporates techniques from Positive Psychotherapy to increase positive affect and reduce negative affect prior to and after quitting smoking. Intervention includes 8 weeks of transdermal nicotine patch.

  • DrugNicotine polacrilex

    8 weeks of nicotine patch

  • BehavioralRelaxation training

    Instructions in progressive muscle relaxation

  • BehavioralBehavioral smoking cessation treatment

    Counseling on techniques to manage triggers and avoid smoking

06

What researchers measure

Primary outcomes

  1. 7-day Point Prevalence Smoking Abstinence at 8 Weeks

    Biochemically verified abstinence from smoking over the past 7 days

    Time frame: 8 weeks

  2. 7-day Point Prevalence Smoking Abstinence at 16 Weeks

    Biochemically verified abstinence from smoking over the past 7 days

    Time frame: 16 Weeks

  3. 7-day Point Prevalence Smoking Abstinence at 26 Weeks

    Biochemically verified abstinence from smoking over the past 7 days

    Time frame: 26 Weeks

07

Results

Posted Mar 18, 2015

Participant flow

Participant flow — Overall Study
MilestonePositive PsychotherapyStandard Treatment
Started3531
Attended a session3531
Completed2926
Not completed65
Withdrew: Withdrawal by subject11
Withdrew: Lost to follow-up54

Outcome measures

Primary7-day Point Prevalence Smoking Abstinence at 8 Weeks

Biochemically verified abstinence from smoking over the past 7 days

Time frame:
8 weeks
Reported as:
Number · percentage of participants abstinent
7-day Point Prevalence Smoking Abstinence at 8 Weeks
percentage of participants abstinentPositive PsychotherapyStandard Treatment
7-day Point Prevalence Smoking Abstinence at 8 Weeks40.025.8
Statistical analysis
  • Positive Psychotherapy vs Standard Treatment · Chi-squared · p = .22 · Odds ratio (or): 1.91 · 95% CI 0.67 to 5.48
Primary7-day Point Prevalence Smoking Abstinence at 16 Weeks

Biochemically verified abstinence from smoking over the past 7 days

Time frame:
16 Weeks
Reported as:
Number · percentage of participants abstinent
7-day Point Prevalence Smoking Abstinence at 16 Weeks
percentage of participants abstinentPositive PsychotherapyStandard Treatment
7-day Point Prevalence Smoking Abstinence at 16 Weeks22.96.5
Statistical analysis
  • Positive Psychotherapy vs Standard Treatment · Chi-squared · p = .06 · Odds ratio (or): 4.3 · 95% CI 0.84 to 22.1
Primary7-day Point Prevalence Smoking Abstinence at 26 Weeks

Biochemically verified abstinence from smoking over the past 7 days

Time frame:
26 Weeks
Reported as:
Number · percentage of participants abstinent
7-day Point Prevalence Smoking Abstinence at 26 Weeks
percentage of participants abstinentPositive PsychotherapyStandard Treatment
7-day Point Prevalence Smoking Abstinence at 26 Weeks17.16.5
Statistical analysis
  • Positive Psychotherapy vs Standard Treatment · Chi-squared · p = .18 · Odds ratio (or): 3.0 · 95% CI 0.56 to 16.11

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Positive Psychotherapy—1/35 (2.9%)0/35 (0%)
Standard Treatment—0/31 (0%)0/31 (0%)
Most frequent serious events
Most frequent serious events
EventPositive PsychotherapyStandard Treatment
HospitalizationRespiratory, thoracic and mediastinal disorders1/350/31

Baseline characteristics

Participants fully eligible and attending the first session of counseling

Age, Continuous
Age, Continuous(years)Positive PsychotherapyStandard TreatmentTotal
Mean47.4 ± 13.144.5 ± 13.846.2 ± 13.5
Sex: Female, Male
Sex: Female, Male(Participants)Positive PsychotherapyStandard TreatmentTotal
Female191433
Male161733
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Positive PsychotherapyStandard TreatmentTotal
Hispanic or Latino022
Not Hispanic or Latino352964
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Positive PsychotherapyStandard TreatmentTotal
American Indian or Alaska Native011
Asian011
Native Hawaiian or Other Pacific Islander000
Black or African American639
White292554
More than one race011
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Positive PsychotherapyStandard TreatmentTotal
United States353166
Fagstrom Test for Nicotine Dependence
Fagstrom Test for Nicotine Dependence(units on a scale)Positive PsychotherapyStandard TreatmentTotal
Mean5.6 ± 2.45.4 ± 2.25.5 ± 2.3
08

Study locations

1 site
  • Center for Alcohol and Addiction Studies, Brown University
    Providence, Rhode Island 02912, United States
09

References and documents

Publications

  • Kahler CW, Spillane NS, Day AM, Cioe PA, Parks A, Leventhal AM, Brown RA. Positive Psychotherapy for Smoking Cessation: A Pilot Randomized Controlled Trial. Nicotine Tob Res. 2015 Nov;17(11):1385-92. doi: 10.1093/ntr/ntv011. Epub 2015 Feb 2. PubMed 25646352 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 18, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01451814
Lead sponsor
Brown University
Collaborators
National Cancer Institute (NCI)
Responsible party
Christopher W. Kahler (Professor of Behavioral and Social Sciences, Brown University) — Principal investigator
First posted
Oct 14, 2011
Start date
Oct 2011
Primary completion
Feb 2014
Completion
Feb 2014
Results posted
Mar 18, 2015
Last update
Mar 18, 2015

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2015. You cannot join it, but the record below documents what was studied.

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