Counseling and Nicotine Replacement Therapy in Helping Adult Smokers Quit Smoking

Sponsor
Fox Chase Cancer Center (Other)
Overall Status
Completed
CT.gov ID
NCT00365508
Collaborator
National Cancer Institute (NCI) (NIH)
642
10
2
42
64.2
1.5

Study Details

Study Description

Brief Summary

RATIONALE: Stop-smoking plans, including counseling and nicotine replacement therapy, may help smokers quit smoking. It is not yet known whether counseling and the nicotine lozenge is more effective than counseling and the nicotine patch in helping adult smokers quit smoking.

PURPOSE: This randomized phase III trial is studying counseling and the nicotine lozenge to see how well they work compared to counseling and the nicotine patch in helping smokers quit smoking.

Condition or Disease Intervention/Treatment Phase
  • Drug: nicotine lozenge
  • Drug: nicotine patch
Phase 4

Detailed Description

OBJECTIVES:

Primary

  • Compare the efficacy of behavioral counseling and nicotine-replacement therapy with either oral nicotine lozenge (NL) or transdermal nicotine patch (NP), in terms of promoting rates of smoking cessation (e.g., continued abstinence), in adult smokers.

  • Examine the degree to which nicotine replacement therapy (NRT) preference, desire to control NRT dosing, irregular smoking schedules, and desire for oral preoccupation moderates the relative efficacy of NL vs NP in promoting smoking cessation.

  • Evaluate the impact of the NL on mediators of smoking cessation (i.e., reduced craving, diminished withdrawal symptoms, cue reactivity, and increased perceived control over withdrawal symptoms).

Secondary

  • Compare the rate of compliance with NRT across the 2 treatment arms and examine if compliance rate mediates the effects of NRT on quit rates.

  • Examine the potential role of genes related to nicotine dependence such as genes related to nicotine metabolism enzymes (e.g., CYP1A1) or genes related to dopamine concentrations (e.g., DRD2).

OUTLINE: This is a randomized, open-label, multicenter study. Participants are stratified according to study center. Participants are randomized to 1 of 2 intervention arms.

All participants undergo smoking cessation counseling in weeks 1, 3, 5, 7, and 9. Beginning in week 3, participants are asked to quit smoking for 12 weeks (weeks 3-14).

  • Arm I: Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14.

  • Arm II: Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day).

The moderating variables (e.g., nicotine replacement-therapy [NRT] preference and the smoker's desire to control NRT dosing) are assessed at baseline. The mediating variables (i.e., reduced craving, diminished withdrawal symptoms, cue reactivity, and increased perceived control over withdrawal symptoms) are assessed at baseline and then at weeks 5, 7, 9, within weeks 14-16, and within weeks 26-28. Continuous abstinence will be measured at week 27.

PROJECTED ACCRUAL: A total of 700 participants will be accrued for this study.

Study Design

Study Type:
Interventional
Actual Enrollment :
642 participants
Allocation:
Randomized
Intervention Model:
Factorial Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Comparing the Lozenge to the Patch for Smoking Cessation
Study Start Date :
Feb 1, 2006
Actual Primary Completion Date :
Aug 1, 2009
Actual Study Completion Date :
Aug 1, 2009

Arms and Interventions

Arm Intervention/Treatment
Experimental: Arm I

Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14.

Drug: nicotine patch
transdermal nicotine patch
Other Names:
  • transdermal nicotine patch
  • Experimental: Arm II

    Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day).

    Drug: nicotine lozenge
    nicotine lozenge

    Outcome Measures

    Primary Outcome Measures

    1. 24-hour Point Prevalence Abstinence at the 6-month Follow up [6-months]

    Secondary Outcome Measures

    1. Rate of Compliance During the First 2 Weeks [2 weeks]

      Applied to use of the intervention (number of lozenges/day or number of patches used per week) not considering abstinence

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    DISEASE CHARACTERISTICS:
    • Smokes at least 10 cigarettes a day on average for the past year

    • No prior diagnosis of cancer (unless completed treatment AND no evidence of disease within the past 5 years)

    • Able to use nicotine replacement therapy

    PATIENT CHARACTERISTICS:
    • Able to communicate in English

    • Must reside in the geographic area for ≥ 6 months

    • Current asthma, ulcer, or diabetes allowed provided medical clearance from the participant's physician is obtained

    • No evidence of drug or alcohol abuse

    • No known HIV positivity

    • No heart disease, including any of the following:

    • Current diagnosis of coronary artery disease

    • Abnormal heart rhythm or an arrhythmia

    • Heart failure

    • Heart valve disease

    • Congenital heart disease

    • Heart muscle disease or cardiomyopathy

    • Pericardial disease

    • Aorta disease

    • Vascular disease

    • Myocardial infarction

    • High blood pressure (defined as blood pressure > 140/90 mm Hg) not receiving antihypertensive medication

    • History of or current high blood pressure controlled by antihypertensive medication and having medical clearance from physician allowed

    • No allergy to adhesive tape or latex

    • Not pregnant or nursing

    • Negative pregnancy test

    • Fertile participants must use effective contraception during and for ≥ 1 month prior to and after completion of study treatment

    PRIOR CONCURRENT THERAPY:
    • At least 30 days since prior and no concurrent benzodiazepine (e.g., diazepam, alprazolam, or lorazepam)

    • At least 6 months since prior antiretroviral medications

    • At least 6 months since prior and no concurrent medication for depression (e.g., phenelzine sulfate, pargyline hydrochloride, tranylcypromine sulfate, paroxetine hydrochloride, sertraline hydrochloride, fluoxetine hydrochloride)

    • No concurrent antipsychotics (e.g., lithium) or theophylline

    • No concurrent substance abuse treatment

    • No concurrent bupropion hydrochloride

    • No other concurrent pharmacologic aid or any other form of formal assistance for smoking cessation

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Howard University Cancer Center Washington District of Columbia United States 20060
    2 CCOP - Mount Sinai Medical Center Miami Beach Florida United States 33140
    3 Medical College of Georgia Cancer Center Augusta Georgia United States 30912-3500
    4 Fox Chase Virtua Health Cancer Program at Virtua Memorial Hospital Burlington County Mount Holly New Jersey United States 08060-2099
    5 Hematology Oncology Associates of Central New York, PC - Northeast Center East Syracuse New York United States 13057-4510
    6 Don Monti Comprehensive Cancer Center at North Shore University Hospital Manhasset New York United States 11030
    7 Geisinger Cancer Institute at Geisinger Health Danville Pennsylvania United States 17822-0001
    8 Fox Chase Cancer Center - Philadelphia Philadelphia Pennsylvania United States 19111-2497
    9 CCOP - Main Line Health Wynnewood Pennsylvania United States 19096
    10 Nashville General Hospital at Meharry Nashville Tennessee United States 37208

    Sponsors and Collaborators

    • Fox Chase Cancer Center
    • National Cancer Institute (NCI)

    Investigators

    • Study Chair: Robert A. Schnoll, PhD, Fox Chase Cancer Center - Cheltenham

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Fox Chase Cancer Center
    ClinicalTrials.gov Identifier:
    NCT00365508
    Other Study ID Numbers:
    • CDR0000491296
    • FCCC-FCRB-04-003-P
    • 05-818
    First Posted:
    Aug 17, 2006
    Last Update Posted:
    Mar 29, 2016
    Last Verified:
    Mar 1, 2016

    Study Results

    Participant Flow

    Recruitment Details Participants were recruited through ads/physician referral at: FCCC, Geisinger Medical Center, Hematology Oncology Associates of Central NY, Howard University, LSU, Main Line Health System, Medical College of GA, Meharry Medical College, Mount Sinai Medical Center (Miami), North Shore University, SUNY Downstate Medical Center, and Virtua Health.
    Pre-assignment Detail 1299 individuals were screened for this trial over 4 years; 454 individuals were ineligible, 194 refused enrollment, and 651 were randomized. Nine individuals either withdrew from the study prior to treatment or were found to be ineligible after randomization and were removed from the intent-to-treat sample. The final ITT sample was 642 (321/arm).
    Arm/Group Title Nicotine Patch Nicotine Lozenge
    Arm/Group Description Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14. Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day).
    Period Title: Overall Study
    STARTED 321 321
    COMPLETED 182 167
    NOT COMPLETED 139 154

    Baseline Characteristics

    Arm/Group Title Arm I Arm II Total
    Arm/Group Description Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14. Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day). Total of all reporting groups
    Overall Participants 321 321 642
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    44.7
    (12.7)
    44.8
    (11.9)
    44.7
    (12.3)
    Sex: Female, Male (Count of Participants)
    Female
    195
    60.7%
    170
    53%
    365
    56.9%
    Male
    126
    39.3%
    151
    47%
    277
    43.1%

    Outcome Measures

    1. Primary Outcome
    Title 24-hour Point Prevalence Abstinence at the 6-month Follow up
    Description
    Time Frame 6-months

    Outcome Measure Data

    Analysis Population Description
    Intent to treat analysis (lost to follow-up = smoker)
    Arm/Group Title Arm I Arm II
    Arm/Group Description Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14. Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day).
    Measure Participants 321 321
    Number [participants]
    50
    15.6%
    35
    10.9%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Arm I, Arm II
    Comments Chi-square was used to examine the relationship between treatment arm and 24-hour point prevalence abstinence at 6-months.
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value .05
    Comments a priori threshold for statistical significance
    Method Chi-squared
    Comments
    2. Secondary Outcome
    Title Rate of Compliance During the First 2 Weeks
    Description Applied to use of the intervention (number of lozenges/day or number of patches used per week) not considering abstinence
    Time Frame 2 weeks

    Outcome Measure Data

    Analysis Population Description
    Intent to treat
    Arm/Group Title Arm I Arm II
    Arm/Group Description Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14. Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day).
    Measure Participants 321 321
    Number [participants]
    231
    72%
    87
    27.1%

    Adverse Events

    Time Frame 6 months
    Adverse Event Reporting Description Administered a checklist of side effects from NRT and collected any additional information on adverse events.
    Arm/Group Title Arm I Arm II
    Arm/Group Description Participants apply a transdermal nicotine patch at 3 different time periods during weeks 3-14; a higher-dose patch is applied for weeks 3-8, a medium-dose patch is applied for weeks 9-10, and a lower-dose patch is applied for weeks 11-14. Participants receive one oral nicotine lozenge every 1-2 hours in weeks 3-8 (≥ 9 lozenges per day), one lozenge every 2-4 hours in weeks 9-11 (≥ 5 lozenges per day), and 1 lozenge every 4-8 hours in weeks 12-14 (≥ 3 lozenges per day).
    All Cause Mortality
    Arm I Arm II
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN)
    Serious Adverse Events
    Arm I Arm II
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 4/321 (1.2%) 7/321 (2.2%)
    Cardiac disorders
    Stroke 2/321 (0.6%) 2 0/321 (0%) 0
    Heart disease 0/321 (0%) 0 1/321 (0.3%) 1
    heart attack 0/321 (0%) 0 1/321 (0.3%) 1
    Gastrointestinal disorders
    ulcer 0/321 (0%) 0 1/321 (0.3%) 1
    appendicitis 0/321 (0%) 0 1/321 (0.3%) 1
    Injury, poisoning and procedural complications
    killed in car accident 1/321 (0.3%) 1 0/321 (0%) 0
    Nervous system disorders
    Seizure 1/321 (0.3%) 1 1/321 (0.3%) 1
    Respiratory, thoracic and mediastinal disorders
    cough 0/321 (0%) 0 1/321 (0.3%) 1
    Surgical and medical procedures
    Abcessed tooth 0/321 (0%) 0 1/321 (0.3%) 1
    Other (Not Including Serious) Adverse Events
    Arm I Arm II
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/321 (0%) 0/321 (0%)

    Limitations/Caveats

    The study was an effectiveness trial so external vs. internal validity was emphasized. Many participants were lost to follow-up.

    More Information

    Certain Agreements

    Principal Investigators are NOT 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 Robert Schnoll
    Organization University of Pennsylvania
    Phone 215-746-7143
    Email schnoll@mail.med.upenn.edu
    Responsible Party:
    Fox Chase Cancer Center
    ClinicalTrials.gov Identifier:
    NCT00365508
    Other Study ID Numbers:
    • CDR0000491296
    • FCCC-FCRB-04-003-P
    • 05-818
    First Posted:
    Aug 17, 2006
    Last Update Posted:
    Mar 29, 2016
    Last Verified:
    Mar 1, 2016