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Nicotine Patch Pretreatment for Smoking Cessation in PTSD

Nicotine Patch Pre-treatment for Smoking Cessation in PTSD

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00625131
Enrollment
87
Registered
2008-02-28
Start date
2008-05-31
Completion date
2013-03-31
Last updated
2014-11-20

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

Conditions

Stress Disorders, Posttraumatic, Tobacco Use Disorder

Keywords

Stress Disorders, Posttraumatic, Tobacco Use Disorder

Brief summary

This study seeks to evaluate the relationship between PTSD, abstinence, and factors associated with relapse in the context of a randomized, clinical smoking cessation trial.

Detailed description

Smokers with PTSD will be randomly assigned to 1 of 2 pre-cessation patch therapy conditions (active patch versus placebo patch) for three weeks before a target quit-smoking date. All participants to will receive bupropion beginning 1 week prior to their quit day, given that they are medically eligible to be prescribed bupropion. All participants will receive a two session brief cognitive-behavioral therapy (CBT) session and will begin standard nicotine replacement therapy (NRT) on their quit day. PTSD symptoms, mood, and smoking craving will be carefully evaluated throughout the study using electronic diary assessments on personal digital assistants (PDA). Specifically, participants will carefully monitor their symptoms, mood, craving, and use of cigarettes using electronic diaries for one week prior to the pre-cessation period, during the 3-week pre-cessation treatment period, and 6 weeks post quit date. Since no previous study has examined factors associated with smoking abstinence following treatment among PTSD smokers10, predictors of treatment response will be examined. The study is designed to address the following items: Specific Aim 1: To evaluate whether supplemental nicotine administration (i.e., pre-cessation treatment with nicotine patch and bupropion) will result in improved quit rates among smokers with PTSD. Hypothesis 1.1 Supplemental nicotine administration during the pre-cessation period will result in improved quit rates in the first quit week over the placebo patch condition. Specific Aim 2: To utilize electronic diary assessment of PTSD symptoms, mood, smoking craving, and smoking during baseline, pretreatment, and quit periods to evaluate potential mechanisms of how pretreatment with the nicotine patch may increase abstinence rates. Hypothesis 2.1 Supplemental nicotine administration will decrease craving for cigarettes during the 2 week pretreatment period as compared to the placebo patch condition. Hypothesis 2.2 Supplemental nicotine administration will decrease the perceived improvement in mood and PTSD symptoms associated with smoking behavior, i.e., symptom relief from ad lib smoking a cigarette will be reduced during supplemental nicotine administration as compared to the placebo patch condition. Specific Aim 3: To investigate potential predictors of smoking abstinence and relapse associated with individual differences in affective style including anxiety sensitivity, measures of distress tolerance, and self-efficacy. Hypothesis 3.1 Increased anxiety sensitivity will be predictive of shorter abstinence from smoking. Hypothesis 3.2 Decreased distress tolerance will be predictive of shorter abstinence. Hypothesis 3.3 Lower self-efficacy for smoking abstinence will be predictive of shorter abstinence. Hypothesis 3.4 Increased PTSD symptoms severity and negative affect following the quit date will be associated with shorter abstinence.

Interventions

DRUGNicotine

Delivered through transdermal nicotine patch

Manualized protocol for CBT in smoking cessation

DRUGBupropion Sustained Release (SR)

Antidepressant

DRUGPlacebo patch

Pre-treatment placebo transdermal patch

Sponsors

US Department of Veterans Affairs
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Smokers who smoke 10 or more cigarettes per day in the past year; * 18-80 years old; * English speakers; * medically stable; * stable on current medication regimen

Exclusion criteria

* Pregnant women excluded; * participants with organic mental disorder, schizophrenia, bipolar disorder, lifetime but not current PTSD, current substance abuse or dependence; * medical conditions contraindicated with nicotine replacement therapy; * use other forms of nicotine (cigars, nicotine gum, etc.)

Design outcomes

Primary

MeasureTime frameDescription
Smoking Abstinence, Self-reportedWeek prior to Session 12 at 6 weeks post-treatmentNumber of participants by group reporting 1 week of self-reported abstinence in the week prior to Session 12 at six weeks post-treatment

Secondary

MeasureTime frameDescription
Carbon Monoxide MonitoringSession 12 (6 weeks post-treatment)Number of participants whose carbon monoxide (CO) measurement indicated abstinence at Session 12 (6 weeks post-treatment)
Smoking CravingDaily between visits 2-12Mean smoking craving score (as measured during daily ecological momentary, or diary, assessments) for participants by group during the two week period of placebo/active pre-treatment. This is the main period of interest, as it was hypothesized that use of active nicotine patch would reduce smoking cravings during the pre-quit period. The craving score is based on a single diary item Please rate your desire to smoke right now with a Likert scale score ranging from 1 (none) to 5 (severe). Higher craving is worse, as lower craving is presumed to reflect decreased risk of smoking lapse or relapse.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm 1
Transdermal nicotine patch Nicotine: Delivered through transdermal nicotine patch Cognitive Behavioral Therapy for Smoking Cessation: Manualized protocol for CBT in smoking cessation Bupropion SR: Antidepressant
38
Arm 2
Transdermal placebo patch Cognitive Behavioral Therapy for Smoking Cessation: Manualized protocol for CBT in smoking cessation Bupropion SR: Antidepressant
44
Total82

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up320
Overall StudyWithdrawal by Subject105

Baseline characteristics

CharacteristicTotalArm 1Arm 2
Age, Continuous44.79 years
STANDARD_DEVIATION 10.51
45.16 years
STANDARD_DEVIATION 9.61
44.48 years
STANDARD_DEVIATION 11.31
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants2 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
79 Participants35 Participants44 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Black or African American
51 Participants21 Participants30 Participants
Race (NIH/OMB)
More than one race
6 Participants4 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
23 Participants11 Participants12 Participants
Region of Enrollment
United States
82 participants38 participants44 participants
Sex: Female, Male
Female
38 Participants17 Participants21 Participants
Sex: Female, Male
Male
44 Participants21 Participants23 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
12 / 3816 / 44
serious
Total, serious adverse events
0 / 382 / 44

Outcome results

Primary

Smoking Abstinence, Self-reported

Number of participants by group reporting 1 week of self-reported abstinence in the week prior to Session 12 at six weeks post-treatment

Time frame: Week prior to Session 12 at 6 weeks post-treatment

Population: Any participants who did not attend Session 12 for any reason (i.e., lost to contact, withdrawn after beginning treatment) were counted as smoking (i.e., intent-to-treat analyses, missing = smoking).

ArmMeasureValue (NUMBER)
Active Nicotine Patch GroupSmoking Abstinence, Self-reported5 participants
Placebo Patch GroupSmoking Abstinence, Self-reported11 participants
Secondary

Carbon Monoxide Monitoring

Number of participants whose carbon monoxide (CO) measurement indicated abstinence at Session 12 (6 weeks post-treatment)

Time frame: Session 12 (6 weeks post-treatment)

Population: Please note that this secondary outcome (bioverification by CO reading) is not a measure of complete smoking abstinence during the study period (or during the week prior to the session - see Primary Outcome). It is independent of self-reported smoking abstinence. It is not unexpected that CO readings different than self-reported smoking.

ArmMeasureValue (NUMBER)
Active Nicotine Patch GroupCarbon Monoxide Monitoring8 participants
Placebo Patch GroupCarbon Monoxide Monitoring5 participants
Secondary

Smoking Craving

Mean smoking craving score (as measured during daily ecological momentary, or diary, assessments) for participants by group during the two week period of placebo/active pre-treatment. This is the main period of interest, as it was hypothesized that use of active nicotine patch would reduce smoking cravings during the pre-quit period. The craving score is based on a single diary item Please rate your desire to smoke right now with a Likert scale score ranging from 1 (none) to 5 (severe). Higher craving is worse, as lower craving is presumed to reflect decreased risk of smoking lapse or relapse.

Time frame: Daily between visits 2-12

ArmMeasureValue (MEAN)Dispersion
Active Nicotine Patch GroupSmoking Craving2.48 units on a scaleStandard Deviation 1.4
Placebo Patch GroupSmoking Craving2.59 units on a scaleStandard Deviation 1.24

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026