Exenatide Once Weekly for Smoking Cessation

Sponsor
The University of Texas Health Science Center, Houston (Other)
Overall Status
Completed
CT.gov ID
NCT02975297
Collaborator
(none)
84
1
2
42.1
2

Study Details

Study Description

Brief Summary

The purpose of this study is to identify a potential new treatment for smoking cessation.

Condition or Disease Intervention/Treatment Phase
Phase 1/Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
84 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
Exenatide Once Weekly for Smoking Cessation: A Randomized Clinical Trial
Actual Study Start Date :
Jul 1, 2016
Actual Primary Completion Date :
Jan 3, 2020
Actual Study Completion Date :
Jan 3, 2020

Arms and Interventions

Arm Intervention/Treatment
Experimental: Exenatide plus NRT plus counseling

Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling

Drug: Exenatide
Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks.
Other Names:
  • Bydureon
  • Drug: NRT
    Nicotine Patch (21mg) / 24 hours.
    Other Names:
  • Nicotine patch
  • Behavioral: Counseling
    Brief individual behavioral smoking cessation counseling.
    Other Names:
  • Smoking cessation counseling
  • Placebo Comparator: Placebo plus NRT plus counseling

    Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling

    Drug: NRT
    Nicotine Patch (21mg) / 24 hours.
    Other Names:
  • Nicotine patch
  • Behavioral: Counseling
    Brief individual behavioral smoking cessation counseling.
    Other Names:
  • Smoking cessation counseling
  • Drug: Placebo
    Normal saline.

    Outcome Measures

    Primary Outcome Measures

    1. Number of Participants Who Self-Reported Abstinence and Who Were Biochemically Verified as Abstinent Via Expired CO Level of ≤ 5ppm [6 weeks]

    2. Post-quit Craving as Assessed by the Questionnaire of Smoking Urges [6 weeks]

      Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.

    3. Withdrawal Symptoms as Assessed by the Wisconsin Smoking Withdrawal Scale [6 weeks]

      The Wisconsin Smoking Withdrawal Scale is a 28-item questionnaire designed to assess different aspects of the smoking withdrawal syndrome. Participants rate each item on a Likert scale from zero (strongly disagree) to four (strongly agree). Total score ranges from 0 to 112, with a higher score indicating greater withdrawal.

    4. Cue-induced Craving for Cigarettes Following Virtual Reality Exposure as Assessed by the Questionnaire of Smoking Urges [1 week]

      Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.

    5. Cue-induced Craving for Cigarettes Following Virtual Reality Exposure as Assessed by the Questionnaire of Smoking Urges [3 weeks]

      Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.

    Secondary Outcome Measures

    1. Number of Participants Who Self-Reported Abstinence and Who Were Biochemically Verified as Abstinent Via Expired CO Level of ≤ 5ppm [7 weeks (1 week after end of treatment)]

    2. Number of Participants Who Self-Reported Abstinence and Who Were Biochemically Verified as Abstinent Via Expired CO Level of ≤ 5ppm [10 weeks (4 weeks after end of treatment)]

    3. Post-quit Craving as Assessed by the Questionnaire of Smoking Urges [7 weeks (1 week after end of treatment)]

      Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.

    4. Post-quit Craving as Assessed by the Questionnaire of Smoking Urges [10 weeks (4 weeks after end of treatment)]

      Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 75 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Be English-speaking volunteers who desire to quit smoking and are willing to make a quit attempt during the course of the study;

    • Have smoked ≥10 cigarettes a day for at least one year and provide a breath carbon monoxide (CO) ≥10 ppm;

    • Have a negative pregnancy test, if female of childbearing potential;

    • Have HbA1C levels between 5.7 and 6.4% or BMI of or greater than 25 kg/square meters

    • Not currently using any therapy for glycemic control (either injectable [i.e. insulin] or oral agents);

    • Have vital signs as follows: resting pulse between 50 and 95 bpm, BP between 90-150 mmHg systolic and 45-95 mmHg diastolic;

    • Have hematology and chemistry laboratory tests that are within reference limits (within 10% above or below), with the following exception: pancreatic tests (lipase and amylase) must be within normal limits;

    • Have a medical history and brief physical examination demonstrating no clinically significant contraindications for study participation, in the judgment of the principal investigator.

    Exclusion Criteria:
    • Meet criteria for the following psychiatric and/or substance use disorders as assessed by the Mini International Neuropsychiatric Interview (MINI): items C (current manic or hypomanic episode only), I (alcohol abuse - Alcohol Addendum-past 3 months only; current alcohol dependence), J (substance abuse -Substance Abuse Addendum - past 3 months only; current substance dependence), K (current psychotic disorder or current mood disorder with psychotic features).

    • Individuals who meet criteria for non-exclusionary psychiatric disorders that are considered clinically unstable and/or unsuitable to participate as determined by the Principal Investigator and/or Study Physician.

    • Individuals rated as moderate (9-16) to high (17 or greater) on suicidality as assessed by Module B of the MINI.

    • Have personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2;

    • Have type 1 diabetes mellitus;

    • Have severe cardiovascular disease (history of myocardial infarction, life-threatening arrhythmia, or worsening angina pectoris);

    • Have active temporomandibular joint disease;

    • Have severe gastrointestinal disease (i.e. severe gastroparesis);

    • Have previous history of pancreatitis or are at risk for pancreatitis;

    • Have creatinine clearance (CrCl) < 30;

    • Have any previous medically adverse reaction to study medications, nicotine, or menthol;

    • Be pregnant or lactating or unwilling to provide a negative pregnancy test before study entry;

    • Not using a reliable form of contraception (e.g., abstinence, birth control pills, intrauterine device, condoms, or spermicide);

    • Have any illness which in the opinion of the primary investigator would preclude safe and/or successful completion of the study.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 The University of Texas Health Science Center at Houston Houston Texas United States 77030

    Sponsors and Collaborators

    • The University of Texas Health Science Center, Houston

    Investigators

    • Principal Investigator: Luba Yammine, PhD, The University of Texas Health Science Center, Houston

    Study Documents (Full-Text)

    More Information

    Publications

    Responsible Party:
    Luba Yammine, Associate Professor, The University of Texas Health Science Center, Houston
    ClinicalTrials.gov Identifier:
    NCT02975297
    Other Study ID Numbers:
    • HSC-MS-17-0802
    • CCTS Research Scholar Award
    First Posted:
    Nov 29, 2016
    Last Update Posted:
    Jan 28, 2021
    Last Verified:
    Jan 1, 2021
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    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
    Keywords provided by Luba Yammine, Associate Professor, The University of Texas Health Science Center, Houston
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail 1 participant in the exenatide arm did not receive exenatide, and 1 participant in the placebo arm did not receive placebo.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Period Title: Overall Study
    STARTED 41 41
    COMPLETED 34 35
    NOT COMPLETED 7 6

    Baseline Characteristics

    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling Total
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline. Total of all reporting groups
    Overall Participants 41 41 82
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    51.0
    (9.1)
    51.2
    (9.4)
    51.1
    (9.2)
    Sex: Female, Male (Count of Participants)
    Female
    13
    31.7%
    12
    29.3%
    25
    30.5%
    Male
    28
    68.3%
    29
    70.7%
    57
    69.5%
    Race/Ethnicity, Customized (Count of Participants)
    Black/African American
    25
    61%
    27
    65.9%
    52
    63.4%
    White
    14
    34.1%
    13
    31.7%
    27
    32.9%
    Hispanic/Latino
    0
    0%
    1
    2.4%
    1
    1.2%
    Other
    2
    4.9%
    0
    0%
    2
    2.4%
    Region of Enrollment (Count of Participants)
    United States
    41
    100%
    41
    100%
    82
    100%
    Marital Status (Count of Participants)
    Never Married
    17
    41.5%
    14
    34.1%
    31
    37.8%
    Divorced/Separated
    17
    41.5%
    20
    48.8%
    37
    45.1%
    Married
    6
    14.6%
    4
    9.8%
    10
    12.2%
    Widowed
    1
    2.4%
    3
    7.3%
    4
    4.9%
    Highest Level of Education (Count of Participants)
    8th Grade or Less
    1
    2.4%
    2
    4.9%
    3
    3.7%
    High School
    27
    65.9%
    24
    58.5%
    51
    62.2%
    College Degree
    11
    26.8%
    12
    29.3%
    23
    28%
    Graduate Degree
    2
    4.9%
    3
    7.3%
    5
    6.1%
    Household Income (Count of Participants)
    <$19,999
    23
    56.1%
    26
    63.4%
    49
    59.8%
    $20,000-39,999
    12
    29.3%
    10
    24.4%
    22
    26.8%
    $40,000-59,999
    2
    4.9%
    2
    4.9%
    4
    4.9%
    $60,000-79,999
    4
    9.8%
    0
    0%
    4
    4.9%
    $80,000-99,999
    0
    0%
    1
    2.4%
    1
    1.2%
    >$100,000
    0
    0%
    1
    2.4%
    1
    1.2%
    Not reported
    0
    0%
    1
    2.4%
    1
    1.2%
    Cigarettes Smoked per Day (Cigarettes Smoked per Day) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Cigarettes Smoked per Day]
    18.5
    (8.7)
    18.4
    (9.3)
    18.4
    (8.9)
    Years of Regular Smoking (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    27.4
    (11)
    26.6
    (12.7)
    27.0
    (11.8)
    Nicotine Dependence as Assessed by the Fagerstrom Test for Nicotine Dependence (FTND) (score on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [score on a scale]
    6.3
    (1.9)
    6
    (2.5)
    6.2
    (2.2)
    Positive Affect as Assessed by the Positive and Negative Affect Schedule (PANAS) (score on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [score on a scale]
    35.9
    (10.1)
    32.5
    (9.8)
    34.2
    (10)
    Negative Affect as Assessed by the Positive and Negative Affect Schedule (PANAS) (score on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [score on a scale]
    18.6
    (7.6)
    20.1
    (8.0)
    19.3
    (7.8)
    Depressive Symptoms as Assessed by the Patient Health Questionnaire (PHQ-8) (score on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [score on a scale]
    8.3
    (6.4)
    8.6
    (5.9)
    8.5
    (6.1)

    Outcome Measures

    1. Primary Outcome
    Title Number of Participants Who Self-Reported Abstinence and Who Were Biochemically Verified as Abstinent Via Expired CO Level of ≤ 5ppm
    Description
    Time Frame 6 weeks

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 41 41
    Count of Participants [Participants]
    19
    46.3%
    11
    26.8%
    2. Primary Outcome
    Title Post-quit Craving as Assessed by the Questionnaire of Smoking Urges
    Description Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.
    Time Frame 6 weeks

    Outcome Measure Data

    Analysis Population Description
    Data were not collected for 7 participants in the Exenatide plus NRT plus counseling arm and 6 participants in the Placebo plus NRT plus counseling arm. Overall Number of Participants Analyzed reflects participants who completed the study visit.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 34 35
    Mean (Standard Deviation) [score on a scale]
    17.2
    (11.0)
    16.9
    (9.75)
    3. Primary Outcome
    Title Withdrawal Symptoms as Assessed by the Wisconsin Smoking Withdrawal Scale
    Description The Wisconsin Smoking Withdrawal Scale is a 28-item questionnaire designed to assess different aspects of the smoking withdrawal syndrome. Participants rate each item on a Likert scale from zero (strongly disagree) to four (strongly agree). Total score ranges from 0 to 112, with a higher score indicating greater withdrawal.
    Time Frame 6 weeks

    Outcome Measure Data

    Analysis Population Description
    Data were not collected for 7 participants in the Exenatide plus NRT plus counseling arm and 6 participants in the Placebo plus NRT plus counseling arm. Overall Number of Participants Analyzed reflects participants who completed the study visit.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 34 35
    Mean (Standard Deviation) [score on a scale]
    40.5
    (18.3)
    44.5
    (18.0)
    4. Primary Outcome
    Title Cue-induced Craving for Cigarettes Following Virtual Reality Exposure as Assessed by the Questionnaire of Smoking Urges
    Description Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.
    Time Frame 1 week

    Outcome Measure Data

    Analysis Population Description
    Virtual reality exposure was not done due to transfer of the study to a different site; therefore, data for this outcome measure were not collected.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 0 0
    5. Primary Outcome
    Title Cue-induced Craving for Cigarettes Following Virtual Reality Exposure as Assessed by the Questionnaire of Smoking Urges
    Description Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.
    Time Frame 3 weeks

    Outcome Measure Data

    Analysis Population Description
    Virtual reality exposure was not done due to transfer of the study to a different site; therefore, data for this outcome measure were not collected.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 0 0
    6. Secondary Outcome
    Title Number of Participants Who Self-Reported Abstinence and Who Were Biochemically Verified as Abstinent Via Expired CO Level of ≤ 5ppm
    Description
    Time Frame 7 weeks (1 week after end of treatment)

    Outcome Measure Data

    Analysis Population Description
    Data were not collected for 22 participants in the Exenatide plus NRT plus counseling arm and 30 participants in the Placebo plus NRT plus counseling arm. The Overall Number of Participants Analyzed reflects the number of participants who were abstinent [self-reported and verified by expired carbon monoxide (CO) levels (CO≤5 ppm)] at 6 weeks (end of treatment).
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 19 11
    Count of Participants [Participants]
    15
    36.6%
    7
    17.1%
    7. Secondary Outcome
    Title Number of Participants Who Self-Reported Abstinence and Who Were Biochemically Verified as Abstinent Via Expired CO Level of ≤ 5ppm
    Description
    Time Frame 10 weeks (4 weeks after end of treatment)

    Outcome Measure Data

    Analysis Population Description
    Data were not collected for 22 participants in the Exenatide plus NRT plus counseling arm and 30 participants in the Placebo plus NRT plus counseling arm. The Overall Number of Participants Analyzed reflects the number of participants who were abstinent [self-reported and verified by expired carbon monoxide (CO) levels (CO≤5 ppm)] at 6 weeks (end of treatment).
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 19 11
    Count of Participants [Participants]
    9
    22%
    4
    9.8%
    8. Secondary Outcome
    Title Post-quit Craving as Assessed by the Questionnaire of Smoking Urges
    Description Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.
    Time Frame 7 weeks (1 week after end of treatment)

    Outcome Measure Data

    Analysis Population Description
    Data were not collected for 25 participants in the Exenatide plus NRT plus counseling arm and 32 participants in the Placebo plus NRT plus counseling arm. The Overall Number of Participants Analyzed reflects those who completed the study visit.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 16 9
    Mean (Standard Deviation) [score on a scale]
    13.3
    (7.86)
    14.2
    (8.47)
    9. Secondary Outcome
    Title Post-quit Craving as Assessed by the Questionnaire of Smoking Urges
    Description Questionnaire of Smoking Urges (QSU) is a 10-item scale (total score range = 10-70, a lower score indicates lower cravings for cigarettes) that evaluates the intention and desire to smoke and anticipation of relief from withdrawal-associated negative affect.
    Time Frame 10 weeks (4 weeks after end of treatment)

    Outcome Measure Data

    Analysis Population Description
    Data were not collected for 30 participants in the Exenatide plus NRT plus counseling arm and 37 participants in the Placebo plus NRT plus counseling arm. The Overall Number of Participants Analyzed reflects those who completed the study visit.
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    Measure Participants 11 4
    Mean (Standard Deviation) [score on a scale]
    11.5
    (5.13)
    11.2
    (2.5)

    Adverse Events

    Time Frame 10 weeks
    Adverse Event Reporting Description
    Arm/Group Title Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Arm/Group Description Once weekly exenatide Injectable Product, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling Exenatide: Exenatide Injectable Product will be administered at a dose of 2 mg subcutaneously once a week for 6 weeks. NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Once weekly placebo, Nicotine Replacement Therapy (NRT) Patch, smoking cessation counseling NRT: Nicotine Patch (21mg) / 24 hours. Counseling: Brief individual behavioral smoking cessation counseling. Placebo: Normal saline.
    All Cause Mortality
    Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/41 (0%) 0/41 (0%)
    Serious Adverse Events
    Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/41 (0%) 0/41 (0%)
    Other (Not Including Serious) Adverse Events
    Exenatide Plus NRT Plus Counseling Placebo Plus NRT Plus Counseling
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 4/41 (9.8%) 1/41 (2.4%)
    Skin and subcutaneous tissue disorders
    Injection site nodule 4/41 (9.8%) 4 0/41 (0%) 0
    Pruritus at the site of nicotine patch application 0/41 (0%) 0 1/41 (2.4%) 1

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    All Principal Investigators ARE employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Luba Yammine, PhD, APRN, FNP-C, Associate Professor
    Organization The University of Texas Health Science Center at Houston
    Phone (713) 500-2005
    Email Luba.Yammine@uth.tmc.edu
    Responsible Party:
    Luba Yammine, Associate Professor, The University of Texas Health Science Center, Houston
    ClinicalTrials.gov Identifier:
    NCT02975297
    Other Study ID Numbers:
    • HSC-MS-17-0802
    • CCTS Research Scholar Award
    First Posted:
    Nov 29, 2016
    Last Update Posted:
    Jan 28, 2021
    Last Verified:
    Jan 1, 2021