- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00939029
Highdose Nicotine Patch Therapy for Smokeless Tobacco Use
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Approximately 8.2 million (3.3%) of Americans ≥ 12 years of age are current smokeless tobacco (ST) users, and the prevalence of ST use has increased over the past three years. ST is increasingly being promoted as a harm reduction strategy for cigarette smoking, and two of the world's largest cigarette manufacturers have entered the ST market. ST use is estimated to be the greatest exogenous source of human exposure to cancer-causing nitrosamines. ST has been associated with oral and extra-oral cancer as well as cardiovascular and cerebrovascular mortality.
A need for efficacious interventions exists as 64% of ST users report the desire to quit. However, no pharmacotherapy has proven efficacy for increasing long-term (> 6 months) tobacco abstinence rates among ST users compared to placebo. New pharmacotherapies, drug combinations, and improved dosing of existing pharmacotherapies are needed. Previous research with nicotine patches for ST users using standard doses (up to 21 mg/day) have not increased long-term abstinence rates. However, studies of higher dose nicotine patch therapy (up to 63 mg/day) in ST users have demonstrated a dose-dependent reduction in tobacco withdrawal symptoms as well as preliminary evidence of increased long-term (> 6 months) abstinence rates compared to lower doses. The purpose of this study is to evaluate the efficacy of high dose nicotine patch therapy (42 mg/day) for increasing the 7-day point prevalence and prolonged all tobacco and ST abstinence rates at end-of-treatment (week 8), 12 and 24 weeks compared to placebo in ST users who use ≥ 3 cans/pouches per week when all subjects receive behavioral treatment for tobacco dependence. To accomplish our aims, we will randomize 60 ST users in a clinical pilot study. The work will be conducted at the Mayo Clinic in Rochester, MN.
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 3
Contacts and Locations
Study Locations
-
-
Minnesota
-
Rochester, Minnesota, United States, 55905
- Mayo Clinic
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- are at least 18 years of age and at most 55 years of age;
- report daily ST use for the past 12 months;
- identify ST as their primary tobacco product;
- use an average of ≥ 3 cans/pouches per week;
- are in general good health (determined by medical history and screening physical examination);
- have been provided with, understand, and have signed the informed consent.
Exclusion Criteria:
- are currently using (past 30 days) any other behavioral or pharmacologic tobacco treatment program;
- are currently pregnant or lactating;
- have had unstable angina, myocardial infarction, or coronary angioplasty within the past 3 months;
- have a history of arrhythmia or an abnormal tracing on the baseline EKG;
- have a blood pressure of greater than 140/90 or a pulse of more than 110 beats per minute;
- have a history of severe skin allergies or dermatoses;
- have a history of intolerance to nicotine patches;
- have another member of their household already participating in this study;
- are taking a medication known to interact with nicotine (i.e., clozapine);
- are taking any prescription medication for depression or asthma
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Active
2 nicotine patches each at 21 mg/day for a total of 42 mg/day for 8 weeks
|
2- 21 mg patches per day for 8 weeks
|
Placebo Comparator: placebo
2 patches (containing non active ingredients) per day for 8 weeks
|
2 placebo patches (containing no active ingredient)per day for 8 weeks
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
End of Treatment (Week 8) Point Prevalence Abstinence
Time Frame: weeks 8
|
7 day point prevalence abstinence at the end of treatment, biochemically confirmed by urinary anabasine < 2 ng per ml
|
weeks 8
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Point-prevalence Abstinence at 3 Months
Time Frame: week 12
|
7 day point prevalence abstinence from tobacco at 3 months, biochemically confirmed using urinary anabasine < 2 ng per ml
|
week 12
|
Point-prevalence Abstinence at 6 Months
Time Frame: week 24
|
7 day point prevalence abstinence from all tobacco at 6 months, biochemically confirmed using urinary anabasine < 2 ng per ml.
|
week 24
|
Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Jon O Ebbert, MD, Mayo Clinic
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 09-002581
- CA140125
- 09-001763
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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