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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02413814
Other study ID # 1R34DA035944-01A1
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date April 1, 2015
Est. completion date July 30, 2019

Study information

Verified date January 2021
Source Florida State University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Problematic anger is a strong predictor of failed attempts at smoking cessation. The investigators proposed study seeks to evaluate whether a novel 8-session computerized anger-reduction treatment improves quit rates among smokers. Smokers with elevated trait anger will be administered transdermal nicotine patch therapy and either anger-reduction treatment or a control intervention. They will be assessed throughout treatment and up until three months after a scheduled mid- treatment quit date. The investigators propose to test whether, compared to the control condition, the anger-reduction treatment will lead to: 1) greater reductions in anger and 2) greater abstinence rates at post-cessation and at follow-up assessments. The investigators will also test whether changes in anger-related symptoms account for group differences in abstinence rates.


Description:

The current proposal seeks to evaluate an eight-session, computerized, anger-focused intervention for smokers (Anger Reduction Treatment or ART). The investigators will administer this intervention to smokers (N = 114) who are interested in quitting and have elevated levels of trait anger. Participants will be randomly assigned to receive either: (1) computerized ART, consisting of interpretation bias modification, or (2) a computerized control condition, which consists of health education and relaxing video clips. The computerized sessions (eight total) will take place twice a week for four weeks. All participants will have a scheduled quit date for the beginning of the third week of treatment (i.e., at mid-treatment). All participants will also receive nicotine patch therapy to use at their scheduled quit date. Anger symptoms, smoking cravings, and smoking frequency will be assessed throughout treatment. Smoking status, anger, and other measures of negative affect will also be assessed at baseline and regularly for 12-weeks following the scheduled quit date. The investigators will test whether, compared to the control condition, the anger-reduction treatment will lead to: 1) greater reductions in anger and 2) greater abstinence rates at post-cessation and at follow-up assessments. The investigators will also test whether changes in anger-related symptoms account for group differences in abstinence rates.


Recruitment information / eligibility

Status Completed
Enrollment 100
Est. completion date July 30, 2019
Est. primary completion date July 30, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria: - Elevated levels of trait anger (scoring 22 or higher on the STAXI-trait) - Currently smoking an average of 8 cigarettes per day - Must be a regular (daily) smoker for at least 1 year - Willing to make a serious attempt to quit smoking - Must report motivation to quit in the next month (30 days) of at least 5 on a 10 point scale (0 = no motivation and 10 = extreme motivation) - Have not decreased the number of cigarettes by more than half in the past six months - Must be an English speaker Exclusion Criteria: - Current substance dependence (excluding nicotine dependence) - Current use of other tobacco products - Currently receiving cognitive therapy or therapy for problematic anger - Evidence of serious suicidal intent requiring hospitalization or immediate treatment - Limited mental competency and the inability to give informed, written consent - Evidence of psychotic-spectrum disorders - Changes in medication over the last month

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Anger Reduction Treatment
Eight 30-minute sessions of interpretation modification to reduce angry interpretation biases.
Control Condition
Eight 30-minute sessions of informative videos on healthy living and relaxation videos.

Locations

Country Name City State
United States Florida State University, Department of Psychology Tallahassee Florida

Sponsors (1)

Lead Sponsor Collaborator
Florida State University

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary State-Trait Anger Expression Inventory-2 (STAXI-2; Spielberger, 1999) state and trait subscales up to 14-weeks following treatment initiation.
Primary Self-reported smoking frequency up to 14-weeks following treatment initiation.
Primary Carbon monoxide levels up to 14-weeks following treatment initiation.
Secondary Minnesota Nicotine Withdrawal Scale (Hughes & Hatsukami, 1986) up to 14-weeks following treatment initiation.
Secondary Beck Depression Inventory-II (Beck, Steer, & Brown, 1996) Baseline and regularly for 14-weeks following treatment initiation.
Secondary Clinical Anger Scale (CAS; Snell, Gum, Shuck, Mosley, & Hite, 1995) up to 14-weeks following treatment initiation.
Secondary WSAP-Hostility Scale (Dillon, Cougle, & Fincham, 2015) up to 14-weeks following treatment initiation.
Secondary Hostile Automatic Thoughts Scale (Snyder, Crowson, Houston, Kurylo, & Piorier, 1997) up to 14-weeks following treatment initiation
Secondary Questionnaire of Smoking Urges (Tiffany & Drobes, 1991) up to 14-weeks following treatment initiation.
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