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Maintaining Nonsmoking

Primary Purpose

Nicotine Dependence

Status
Completed
Phase
Phase 3
Locations
United States
Study Type
Interventional
Intervention
Varenicline
Initial Individual counseling
Check-ins with medical staff
Extended Individual Counseling - Health Model
Extended Individual Counseling - Relapse Prevention Model
Sponsored by
University of California, San Francisco
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Nicotine Dependence focused on measuring Smoking, Tobacco, Nicotine, Smoking cessation

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • At least 18 years of age
  • Must be smoking 5 or more cigarettes per day

Exclusion Criteria:

  • Previous history of bipolar/manic-depressive disorder
  • Current diagnosis of schizophrenia
  • Acute life threatening diseases
  • Evidence of alcohol or other drug abuse so severe that the patient is judged to be potentially unable to comply with the protocol
  • Pregnancy or lactation
  • Individuals with out of normal range blood pressure, active angina, valve disease, valve replacement, active cardiomyopathies, myocardial infarction or Coronary artery bypass grafting (CABG) within one year, and Congestive heart failure (CHF)

Sites / Locations

  • University of California San Francisco

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Experimental

Experimental

Experimental

Experimental

Arm Label

Extended Brief Contact

Extended Health Education

Extended Relapse Prevention plus varenicline

Extended Relapse Prevention

Arm Description

Following standard brief treatment, participants have monthly meetings with medical staff.

Following standard treatment, participants receive monthly counseling with content based on a health education model.

Following standard treatment, participants receive monthly counseling with content based on a relapse prevention model plus access to ongoing medication treatment with varenicline.

Following standard treatment, participants receive monthly counseling with content based on a relapse prevention model.

Outcomes

Primary Outcome Measures

Number of Participants With Reported 7-day Point Prevalence Abstinence at Week 12
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 parts per million (ppm)) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Number of Participants With Reported 7-day Point Prevalence Abstinence at Week 24
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Number of Participants With Reported 7-day Point Prevalence Abstinence at Week 52
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Number of Participants With Reported 7-day Point Prevalence Abstinence at Follow-up Week 64
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Number of Participants With Reported 7-day Point Prevalence Abstinence at Follow-up Week 104
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.

Secondary Outcome Measures

Comparison of Combined Extended vs Brief Treatment at Week 24
The three extended treatment programs were combined and compared to the Brief treatment, with extended treatments expected to produce significant higher CO corrected abstinence rates overall. Comparisons will be tested using Chi-Square analysis.
Comparison of Combined Extended vs Brief Treatment at Week 52
The three extended treatment programs were combined and compared to the Brief treatment, with extended treatments expected to produce significant higher CO corrected abstinence rates overall. Comparisons will be tested using Chi-Square analysis.

Full Information

First Posted
June 14, 2010
Last Updated
October 19, 2020
Sponsor
University of California, San Francisco
Collaborators
National Institute on Drug Abuse (NIDA), Pfizer
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1. Study Identification

Unique Protocol Identification Number
NCT01162239
Brief Title
Maintaining Nonsmoking
Official Title
Maintaining Nonsmoking
Study Type
Interventional

2. Study Status

Record Verification Date
October 2020
Overall Recruitment Status
Completed
Study Start Date
May 2010 (Actual)
Primary Completion Date
June 2016 (Actual)
Study Completion Date
June 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
University of California, San Francisco
Collaborators
National Institute on Drug Abuse (NIDA), Pfizer

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The research is based on a chronic disorder model of cigarette smoking which suggests that long-term treatment targeted to prevent relapse may be useful. Based on this model, the investigators have developed a relapse prevention treatment to intervene on five areas important in relapse prevention, including fluctuating motivation, depression, withdrawal, weight gain, and social support. This treatment protocol has produced high long-term abstinence rates when implemented in a clinical research setting. The current study will evaluate the treatment model when implemented in a medical outpatient setting.
Detailed Description
This study will test a series of hypotheses comparing the efficacy of the relapse prevention treatment to other extended treatments. All participants will be assessed at baseline on demographics, smoking behaviors, nicotine dependence, depression, alcohol and other drug history and problems, mood disturbance, treatment support, stress, health status, and motivation for change. Participants will be randomly assigned to one of four treatment conditions. All participants will receive 12 weeks of combined pharmacological treatment (varenicline) and behavioral treatment (five individual counseling sessions). Following this brief treatment, participants will be randomly assigned to one of four treatment protocols Monthly Brief Contact or Extended Non-Specific Behavioral Treatment or Extended Relapse Prevention Treatment or Extended Relapse Prevention Treatment + availability of varenicline treatment. Each extended treatment protocol is 40 weeks in duration following the initial 12 weeks of treatment. All participants will be assessed at weeks 12, 24, 52, 64, and 104, on smoking as well as other psychometric measures.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Nicotine Dependence
Keywords
Smoking, Tobacco, Nicotine, Smoking cessation

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
216 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Extended Brief Contact
Arm Type
Experimental
Arm Description
Following standard brief treatment, participants have monthly meetings with medical staff.
Arm Title
Extended Health Education
Arm Type
Experimental
Arm Description
Following standard treatment, participants receive monthly counseling with content based on a health education model.
Arm Title
Extended Relapse Prevention plus varenicline
Arm Type
Experimental
Arm Description
Following standard treatment, participants receive monthly counseling with content based on a relapse prevention model plus access to ongoing medication treatment with varenicline.
Arm Title
Extended Relapse Prevention
Arm Type
Experimental
Arm Description
Following standard treatment, participants receive monthly counseling with content based on a relapse prevention model.
Intervention Type
Drug
Intervention Name(s)
Varenicline
Other Intervention Name(s)
Chantix
Intervention Description
All participants will receive 12 weeks of varenicline treatment at standard dosage of 1 mg bid. Participants in the Extended Relapse Prevention plus varenicline will receive varenicline for up to 40 additional weeks.
Intervention Type
Behavioral
Intervention Name(s)
Initial Individual counseling
Intervention Description
Five 90 minute individual counseling sessions to occur during the first 12 weeks of initial treatment.
Intervention Type
Behavioral
Intervention Name(s)
Check-ins with medical staff
Intervention Description
Monthly brief (10-15 minutes) meetings with medical staff.
Intervention Type
Behavioral
Intervention Name(s)
Extended Individual Counseling - Health Model
Intervention Description
Monthly counseling sessions across a nine month period with content based on a health education model. Each session is 30-45 minutes in duration.
Intervention Type
Behavioral
Intervention Name(s)
Extended Individual Counseling - Relapse Prevention Model
Intervention Description
Eleven individual counseling sessions across a nine month period with content based on a relapse prevention model. Each session is 30-45 minutes in duration.
Primary Outcome Measure Information:
Title
Number of Participants With Reported 7-day Point Prevalence Abstinence at Week 12
Description
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 parts per million (ppm)) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Time Frame
12 weeks following treatment initiation
Title
Number of Participants With Reported 7-day Point Prevalence Abstinence at Week 24
Description
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Time Frame
24 weeks following treatment initiation
Title
Number of Participants With Reported 7-day Point Prevalence Abstinence at Week 52
Description
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Time Frame
52 weeks following treatment initiation
Title
Number of Participants With Reported 7-day Point Prevalence Abstinence at Follow-up Week 64
Description
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Time Frame
64 weeks following treatment initiation
Title
Number of Participants With Reported 7-day Point Prevalence Abstinence at Follow-up Week 104
Description
Point prevalent abstinence is defined as biochemically verified (confirmed carbon dioxide (CO) < 8 ppm) self-reported abstinence from smoking cigarettes in the past 7 days. Smoking status was then categorized as either Abstinent or Not Abstinent.
Time Frame
104 weeks following treatment initiation
Secondary Outcome Measure Information:
Title
Comparison of Combined Extended vs Brief Treatment at Week 24
Description
The three extended treatment programs were combined and compared to the Brief treatment, with extended treatments expected to produce significant higher CO corrected abstinence rates overall. Comparisons will be tested using Chi-Square analysis.
Time Frame
24 weeks following treatment initiation
Title
Comparison of Combined Extended vs Brief Treatment at Week 52
Description
The three extended treatment programs were combined and compared to the Brief treatment, with extended treatments expected to produce significant higher CO corrected abstinence rates overall. Comparisons will be tested using Chi-Square analysis.
Time Frame
52 weeks following treatment initiation

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: At least 18 years of age Must be smoking 5 or more cigarettes per day Exclusion Criteria: Previous history of bipolar/manic-depressive disorder Current diagnosis of schizophrenia Acute life threatening diseases Evidence of alcohol or other drug abuse so severe that the patient is judged to be potentially unable to comply with the protocol Pregnancy or lactation Individuals with out of normal range blood pressure, active angina, valve disease, valve replacement, active cardiomyopathies, myocardial infarction or Coronary artery bypass grafting (CABG) within one year, and Congestive heart failure (CHF)
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Gary Humfleet, Ph. D.
Organizational Affiliation
University of California, San Francisco
Official's Role
Principal Investigator
Facility Information:
Facility Name
University of California San Francisco
City
San Francisco
State/Province
California
ZIP/Postal Code
94143
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

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Maintaining Nonsmoking

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