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Persistence Targeted Smoking Cessation in Serious Mental Illness (SMI)

Persistence Targeted Smoking Cessation in Schizophrenia (PTSC-S)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03873337
Acronym
PTSC-S
Enrollment
34
Registered
2019-03-13
Start date
2019-04-22
Completion date
2022-01-31
Last updated
2022-09-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizoaffective Disorder, Schizophrenia, Tobacco Smoking, Tobacco Use, Tobacco Use Cessation, Tobacco Use Disorder

Keywords

tobacco, cigarette, schizophrenia, schizoaffective disorders, smoking cessation

Brief summary

Due to the pandemic, this study was modified from a randomized clinical trial to test the feasibility, initial efficacy, and mechanisms of action of our PTSC-S intervention to a feasibility and acceptability test of our intervention when delivered via telehealth in a single group, within-subjects design.

Detailed description

The investigators will test the feasibility and acceptability of a telehealth-delivered treatment designed to help smokers with serious mental illness to quit using a therapy approach focused on increasing task persistence. We will provide free, weekly individual telehealth video counseling sessions for 8 weeks and 10-weeks' worth of the nicotine transdermal patch (an FDA-approved smoking cessation product available over the counter). All sessions will be video recorded for treatment integrity and supervision. The investigators hypothesize that 1) the PTSC-S intervention will be acceptable to participants, and the study will be feasible to conduct. We will report prolonged and point prevalence abstinence rates at end-of-counseling and at 3-month follow-up (CO verified \<8ppm).

Interventions

BEHAVIORALPersistence Targeted Smoking Cessation in SMI (PTSC-S)

All participants will receive 8 weeks of persistence focused smoking cessation counseling delivered via telehealth

DRUGNicotine patch

All participants will receive 10 weeks of nicotine patch

Sponsors

National Institute on Drug Abuse (NIDA)
CollaboratorNIH
Rutgers, The State University of New Jersey
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Due to the pandemic, this study was modified from a randomized clinical trial to test the feasibility, initial efficacy, and mechanisms of action of our PTSC-S intervention to a feasibility and acceptability test of our intervention when delivered via telehealth in a single group, within-subjects design.

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Must be between 18 - 70 years old * Must indicate willingness to make a quit attempt in the next 30 days * Must report being a daily cigarette smoker (including those labeled little cigars) for past month * Must have a diagnosis of Schizophrenia, Schizoaffective Disorder, or Bipolar Disorder on the Structured Clinical Interview for Diagnostic and Statistical Manual (DSM), 5th edition, Research Version (SCID-5-RV) * Psychiatric illness must be stable, as indicated by no hospitalizations in previous 8 weeks, and a stable psychotropic medication regimen for 8 weeks * Must have a smartphone, tablet, or computer with ability to download apps * Must currently receive mental health treatment * Must sign release of information for current mental health treatment providers

Exclusion criteria

* Must not currently (in past 10 days) be taking varenicline (Chantix), * Must not currently (in past 10 days) be taking bupropion (Zyban/Wellbutrin) to quit smoking. * Must not be taking any nicotine preparations (gum, lozenge, patch, spray, inhaler) daily over the last 10 days * Must not report myocardial infarction, unstable angina pectoris, or significant cardiac arrhythmia (including atrial fibrillation) in the past 30 days. * Women must not be pregnant, test positive on a pregnancy test, nursing, or planning on becoming pregnant in the next three months. Women who can become pregnant may be included if using effective birth control. * Must not have pending legal matters with potential to result in jail time * Must not be planning on moving outside local area in next 3-months * Problematic substance use in the past 3 months (Alcohol Use Disorders Identification Test-Concise (AUDIT-C) ≥5 for men and ≥4 for women, Drug Abuse Screening Test (DAST-10) score of ≥4) * Must not have suicidal ideation in the past week with intent, plan, or access to method; must not have attempted suicide in the past year (as assessed on the SCID-RV)

Design outcomes

Primary

MeasureTime frameDescription
Feasibility 3: Participant Attendance8 weeks of counseling with a 2-week grace period to make up missed sessions (10 weeks)Participants in the PTSC-S intervention will attend at least 60% of their sessions
Acceptability 1: Participant Rating of Usefulness of Intervention3-months post quit date (approximately 4-months after baseline assessment)After each session, participants (N=33) provided a 1-7 rating of how easy to understand and how helpful the intervention was. Higher numbers represent greater ease and greater helpfulness, respectfully. There is no official scale title because the scale was developed for this study.
Acceptability 2: Participant Rating of Counseling Session Length3-months post quit date (approximately 4 months after baseline assessment)After each session, participants (N=33) provided a 1-7 rating of agreement with the statement, There was too much information in today's session. (as a proxy for appropriateness of session length). Higher numbers represent greater agreement. There is no official scale title because the scale was developed for this study.
Acceptability 3: Participant Rating of Treatment Length / Timing of Target Quit-Date3-months post quit date (approximately 4 months after baseline assessment)We asked participants how acceptable the placement of the target quit date was to participants (i.e., it was scheduled for session 4). We report the percentage of participants who responded that the quit date was too soon, too late, or just about right.
Feasibility 1: Number of Participants Contacted at 3 Months Post-Quite Date3-months post quit date (approximately 4 months after baseline assessment)We will calculate follow-up rates to determine if they meet our goal of 80% follow-up rates at the 3-month follow-up.
Feasibility 2: Missing/Unusable Data3-months post quit date (approximately 4 months after baseline assessment)We will determine the rate of missing or unusable carbon monoxide (CO) data to determine if the rate meets our goal of less than 10% missing/unusable data. There were a possible 340 CO assessment data points.

Secondary

MeasureTime frameDescription
Number of Participants With Seven-day Point Prevalence Abstinence at End-of-counselingEnd-of-counseling (8 weeks)No smoking on the 7 days before the final counseling session, biochemically verified with CO\<8ppm
Number of Participants With Prolonged Abstinence at End-of-counselingEnd-of-counseling (8 weeks)Prolonged abstinence with a 2-week grace period following the target quit date until end-of-counseling, biochemically verified with CO\<8ppm
Number of Participants With Seven-day Point Prevalence Abstinence at 3-month Follow-up3-months post target quit date (approximately 4 months after baseline assessment)No smoking on the 7 days before the 3-month follow-up, biochemically verified with CO\<8ppm
Number of Participants With Prolonged Abstinence at at 3-month Followup3-months post target quit date (approximately 4 months after baseline assessment)Prolonged abstinence with a 2-week grace period following the target quit date until 3-months post quit-date, biochemically verified with CO\<8ppm
Task Persistence Scores2 months after baseline assessment and 4 months after baseline assessment14-item Thoughts About Smoking Questionnaire (TASQ). Lower scores represent greater task persistence. The total score can range from a minimum of 14 to a maximum of 98.
Cigarettes Per Day2 months after baseline assessment and 4 months after baseline assessmentHypothesis 3: As compared to baseline, participants will report smoking fewer cigarettes per day at 2- and 4-months post-baseline. Analysis 3: One-tailed, paired sample t-tests will be used to examine decreases in cigarettes smoked per day on the TASQ at each timepoint.

Countries

United States

Participant flow

Participants by arm

ArmCount
NRT + Persistence Targeted Smoking Cessation in SMI
Participants will receive 10 weeks of nicotine patch (NRT) plus 8 weeks of task persistence focused cessation counseling delivered via telehealth. Persistence Targeted Smoking Cessation in SMI (PTSC-S): All participants will receive 8 weeks of persistence focused smoking cessation counseling delivered via telehealth Nicotine patch: All participants will receive 10 weeks of nicotine patch
34
Total34

Baseline characteristics

CharacteristicNRT + Persistence Targeted Smoking Cessation in SMI
Age, Continuous42.65 years
STANDARD_DEVIATION 11.96
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
30 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
6 Participants
Race (NIH/OMB)
More than one race
2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
22 Participants
Region of Enrollment
United States
34 participants
relight
No
10 Participants
relight
Yes
24 Participants
Sex/Gender, Customized
Female
17 Participants
Sex/Gender, Customized
Gender Nonconforming
1 Participants
Sex/Gender, Customized
Male
16 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 34
other
Total, other adverse events
19 / 34
serious
Total, serious adverse events
3 / 34

Outcome results

Primary

Acceptability 1: Participant Rating of Usefulness of Intervention

After each session, participants (N=33) provided a 1-7 rating of how easy to understand and how helpful the intervention was. Higher numbers represent greater ease and greater helpfulness, respectfully. There is no official scale title because the scale was developed for this study.

Time frame: 3-months post quit date (approximately 4-months after baseline assessment)

Population: Participants who attended at least 1 counseling session.

ArmMeasureGroupValue (MEAN)Dispersion
NRT + Persistence Targeted Smoking Cessation in SMIAcceptability 1: Participant Rating of Usefulness of InterventionEasy to understand6.62 units on a scaleStandard Deviation 0.95
NRT + Persistence Targeted Smoking Cessation in SMIAcceptability 1: Participant Rating of Usefulness of InterventionHelpful6.58 units on a scaleStandard Deviation 0.97
Primary

Acceptability 2: Participant Rating of Counseling Session Length

After each session, participants (N=33) provided a 1-7 rating of agreement with the statement, There was too much information in today's session. (as a proxy for appropriateness of session length). Higher numbers represent greater agreement. There is no official scale title because the scale was developed for this study.

Time frame: 3-months post quit date (approximately 4 months after baseline assessment)

Population: Participants who attended at least one counseling session.

ArmMeasureValue (MEAN)Dispersion
NRT + Persistence Targeted Smoking Cessation in SMIAcceptability 2: Participant Rating of Counseling Session Length2.29 units on a scaleStandard Deviation 1.93
Primary

Acceptability 3: Participant Rating of Treatment Length / Timing of Target Quit-Date

We asked participants how acceptable the placement of the target quit date was to participants (i.e., it was scheduled for session 4). We report the percentage of participants who responded that the quit date was too soon, too late, or just about right.

Time frame: 3-months post quit date (approximately 4 months after baseline assessment)

Population: Participants who responded to the item regarding acceptability of setting the target quit date for the 4th session.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMIAcceptability 3: Participant Rating of Treatment Length / Timing of Target Quit-Date4th session was too soon14 Participants
NRT + Persistence Targeted Smoking Cessation in SMIAcceptability 3: Participant Rating of Treatment Length / Timing of Target Quit-DateFourth session was too late2 Participants
NRT + Persistence Targeted Smoking Cessation in SMIAcceptability 3: Participant Rating of Treatment Length / Timing of Target Quit-DateFourth session was at just about the right time.12 Participants
Primary

Feasibility 1: Number of Participants Contacted at 3 Months Post-Quite Date

We will calculate follow-up rates to determine if they meet our goal of 80% follow-up rates at the 3-month follow-up.

Time frame: 3-months post quit date (approximately 4 months after baseline assessment)

Population: Participants enrolled.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 1: Number of Participants Contacted at 3 Months Post-Quite Date28 Participants
Primary

Feasibility 2: Missing/Unusable Data

We will determine the rate of missing or unusable carbon monoxide (CO) data to determine if the rate meets our goal of less than 10% missing/unusable data. There were a possible 340 CO assessment data points.

Time frame: 3-months post quit date (approximately 4 months after baseline assessment)

Population: 340 potential CO data points (Participants enrolled in the study (N=34) with a potential 10 CO assessments each = 340 potential CO data points)

ArmMeasureValue (NUMBER)
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 2: Missing/Unusable Data184 Missing CO points (out of 340)
Primary

Feasibility 3: Participant Attendance

Participants in the PTSC-S intervention will attend at least 60% of their sessions

Time frame: 8 weeks of counseling with a 2-week grace period to make up missed sessions (10 weeks)

Population: All participants enrolled in the study.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 3: Participant AttendanceAttended 0 of 8 counseling sessions1 Participants
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 3: Participant AttendanceAttended 1 of 8 counseling session2 Participants
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 3: Participant AttendanceAttended 2 of 8 counseling sessions5 Participants
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 3: Participant AttendanceAttended 3 of 8 counseling sessions4 Participants
NRT + Persistence Targeted Smoking Cessation in SMIFeasibility 3: Participant AttendanceAttended all 8 counseling sessions22 Participants
Secondary

Cigarettes Per Day

Hypothesis 3: As compared to baseline, participants will report smoking fewer cigarettes per day at 2- and 4-months post-baseline. Analysis 3: One-tailed, paired sample t-tests will be used to examine decreases in cigarettes smoked per day on the TASQ at each timepoint.

Time frame: 2 months after baseline assessment and 4 months after baseline assessment

Population: Number of participants for whom we had data for mean cigarettes per day in the preceding week at baseline and 2 months post-baseline and at baseline and 4-months post-baseline.

ArmMeasureGroupValue (MEAN)Dispersion
NRT + Persistence Targeted Smoking Cessation in SMICigarettes Per Day2 months post-baseline7.01 cigarettes per dayStandard Deviation 8.34
NRT + Persistence Targeted Smoking Cessation in SMICigarettes Per Day4 months post-baseline8.48 cigarettes per dayStandard Deviation 9.31
Comparison: One-tailed, paired sample t-tests will be used to examine decreases in cigarettes smoked per day at one-month post target quit date (2-months after baseline assessment.p-value: <0.001t-test, 1 sided
Comparison: One-tailed, paired sample t-tests will be used to examine decreases in cigarettes smoked per day at 3-months post target quit date (4-months after baseline assessment.p-value: <0.001t-test, 1 sided
Secondary

Number of Participants With Prolonged Abstinence at at 3-month Followup

Prolonged abstinence with a 2-week grace period following the target quit date until 3-months post quit-date, biochemically verified with CO\<8ppm

Time frame: 3-months post target quit date (approximately 4 months after baseline assessment)

Population: Participants enrolled in the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMINumber of Participants With Prolonged Abstinence at at 3-month Followup2 Participants
Secondary

Number of Participants With Prolonged Abstinence at End-of-counseling

Prolonged abstinence with a 2-week grace period following the target quit date until end-of-counseling, biochemically verified with CO\<8ppm

Time frame: End-of-counseling (8 weeks)

Population: Participants enrolled in the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMINumber of Participants With Prolonged Abstinence at End-of-counseling2 Participants
Secondary

Number of Participants With Seven-day Point Prevalence Abstinence at 3-month Follow-up

No smoking on the 7 days before the 3-month follow-up, biochemically verified with CO\<8ppm

Time frame: 3-months post target quit date (approximately 4 months after baseline assessment)

Population: Participants enrolled in the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMINumber of Participants With Seven-day Point Prevalence Abstinence at 3-month Follow-up3 Participants
Secondary

Number of Participants With Seven-day Point Prevalence Abstinence at End-of-counseling

No smoking on the 7 days before the final counseling session, biochemically verified with CO\<8ppm

Time frame: End-of-counseling (8 weeks)

Population: Participants enrolled in the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
NRT + Persistence Targeted Smoking Cessation in SMINumber of Participants With Seven-day Point Prevalence Abstinence at End-of-counseling3 Participants
Secondary

Task Persistence Scores

14-item Thoughts About Smoking Questionnaire (TASQ). Lower scores represent greater task persistence. The total score can range from a minimum of 14 to a maximum of 98.

Time frame: 2 months after baseline assessment and 4 months after baseline assessment

Population: Participants for whom we have baseline and 2-months post-baseline data (n=26) and 4-months post-baseline data (n=28).

ArmMeasureGroupValue (MEAN)Dispersion
NRT + Persistence Targeted Smoking Cessation in SMITask Persistence Scores2 months post-baseline44.19 units on a scaleStandard Deviation 21.72
NRT + Persistence Targeted Smoking Cessation in SMITask Persistence Scores4 months post-baseline47.39 units on a scaleStandard Deviation 26.34
Comparison: One-tailed, paired sample t-tests will be used to examine decreases in scores on the TASQ at one-month post target quit date (2-months after baseline assessment.p-value: <0.001t-test, 1 sided
Comparison: One-tailed, paired sample t-tests will be used to examine decreases in scores on the TASQ at 3-months post target quit date (4 months after baseline assessment.p-value: 0.002t-test, 1 sided

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026