Meclizine as a Potential Smoking Cessation Treatment
1 other identifier
interventional
146
1 country
4
Brief Summary
The purpose of this study is to evaluate whether meclizine, an antihistamine used to prevent or treat motion sickness, can help smokers quit smoking. This study will also investigate the potential relationship between genes you have inherited and success in quitting smoking.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Aug 2011
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2011
CompletedFirst Submitted
Initial submission to the registry
September 29, 2011
CompletedFirst Posted
Study publicly available on registry
September 30, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2013
CompletedResults Posted
Study results publicly available
May 8, 2014
CompletedAugust 1, 2014
July 1, 2014
1.3 years
September 29, 2011
April 7, 2014
July 29, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Percentage of Change in Expired Air Carbon Monoxide (CO) at End of Week 1
To evaluate the effects of meclizine alone on ad lib smoking, the percent decrease in expired air carbon monoxide (CO) at the end of week 1 (relative to baseline) will be compared (using ANOVA) between each meclizine group and placebo.
After 1 week of treatment (relative to baseline)
Percentage of Change in Expired Air Carbon Monoxide (CO) at End of Week 3
To evaluate the effects of meclizine as an augmentation treatment in conjunction with nicotine patch, the percent decrease in expired air carbon monoxide (CO) at the end of week 3 (relative to baseline) will be compared (using ANOVA) between each meclizine group and placebo.
After 3 weeks of treatment (relative to baseline)
Secondary Outcomes (3)
Number of Participants Completing the Continuous 4 Week Abstinence From Smoking
weeks 3-6 post quit date
Percentage of Change of CO at End of Week 1 When Comparing Abstinent Smokers Versus Non-abstinent Smokers
After 1 week of treatment (relative to baseline)
Percentage of Change of CO at End of Week 3 When Comparing Abstinent Smokers Versus Non-abstinent Smokers
After 3 weeks of treatment (relative to baseline)
Study Arms (3)
Placebo + Nicotine Patch
ACTIVE COMPARATORSubjects in this group will take placebo meclizine daily for the three weeks prior to their quit date. Subjects will also apply a 21mg/24h nicotine patch daily starting in the second week of pre-quit treatment. Placebo meclizine will be administered in two doses each day.
25mg Meclizine + Nicotine Patch
EXPERIMENTALSubjects in this group will take 25mg of meclizine daily for the three weeks prior to their quit date. Subjects will also apply a 21mg/24h nicotine patch daily starting in the second week of pre-quit treatment. Meclizine will be administered in two doses each day.
50mg Meclizine + Nicotine Patch
EXPERIMENTALSubjects in this group will take 50mg of meclizine daily for the three weeks prior to their quit date. Subjects will also apply a 21mg/24h nicotine patch daily starting in the second week of pre-quit treatment. Meclizine will be administered in two doses each day.
Interventions
Pre-Quit Period: In this group, participants will take meclizine daily during the three week pre-quit period. The meclizine will be taken in two doses daily, one capsule with breakfast and one with dinner.
Pre-Quit Period: During weeks two and three, participants will apply active 21mg/24h nicotine patches daily. Post-Quit Period: Following the quit-day these participants will apply active nicotine patches daily using the following dose schedule: 21mg/24h for four weeks, 14mg/24h for one week, and 7mg/24h for one week.
Pre-Quit Period: In this group, participants will take placebo capsules daily during the three week pre-quit period. The placebo will be taken in two doses daily, one capsule with breakfast and one with dinner.
Eligibility Criteria
You may qualify if:
- Have no known serious medical conditions;
- Are 18-65 years old;
- Smoke an average of at least 10 cigarettes per day;
- Have smoked at least one cumulative year;
- Have an afternoon expired air carbon monoxide (CO) reading of at least 10ppm;
- Express a desire to quit smoking in the next thirty days.
- Potential subjects must agree to use acceptable contraception during their participation in this study.
- Potential subjects must agree to avoid the following during their participation in this study:
- participation in any other nicotine-related modification strategy outside of this protocol;
- use of tobacco products other than cigarettes, including pipe tobacco, cigars, e-cigarettes, snuff, and chewing tobacco;
- use of experimental (investigational) drugs or devices;
- use of illegal drugs;
- use of opiate medications
- use of anti-histamines;
- use of alcohol (during first three weeks of study participation).
You may not qualify if:
- Inability to attend all required experimental sessions;
- Hypertension (systolic \>140 mm Hg, diastolic \>100 mm Hg, coupled with a history of hypertension); subjects with no previous diagnosis of hypertension may have a screening blood pressure up to 160/100.
- Hypotension with symptoms (systolic \<90 mm Hg, diastolic \<60 mm Hg).
- Participants with a history of hypertension may, however, be allowed to participate in the study if the study physician or physician assistant determines that the condition is stable, controlled by medication, and in no way jeopardizes the individual's safety.
- Coronary heart disease;
- Lifetime history of heart attack;
- Cardiac rhythm disorder (irregular heart rhythm);
- Chest pains (unless history, exam, and ECG clearly indicate a non-cardiac source);
- Cardiac (heart) disorder (including but not limited to valvular heart disease, heart murmur, heart failure);
- History of skin allergy;
- Active skin disorder (e.g., psoriasis) within the last five years, except minor skin conditions (including but not limited to facial acne, minor localized infections, and superficial minor wounds);
- Liver or kidney disorder (except kidney stones, gallstones);
- Gastrointestinal problems or disease other than gastroesophageal reflux or heartburn;
- Active ulcers in the past 30 days;
- Currently symptomatic lung disorder/disease (including but not limited to chronic obstructive pulmonary disease (COPD), emphysema, and asthma);
- +25 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Duke Universitylead
- Philip Morris USA, Inc.collaborator
Study Sites (4)
Duke Center for Nicotine and Smoking Cessation Research
Charlotte, North Carolina, 28210, United States
Duke Center for Nicotine and Smoking Cessation Research
Durham, North Carolina, 27705, United States
Duke Center for Nicotine and Smoking Cessation Research
Raleigh, North Carolina, 27609, United States
Duke Center for Nicotine and Smoking Cessation Research
Winston-Salem, North Carolina, 27103, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Jed E. Rose
- Organization
- Duke Center for Smoking Cessation
Study Officials
- PRINCIPAL INVESTIGATOR
Jed E Rose, Ph.D.
Duke University
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 29, 2011
First Posted
September 30, 2011
Study Start
August 1, 2011
Primary Completion
December 1, 2012
Study Completion
July 1, 2013
Last Updated
August 1, 2014
Results First Posted
May 8, 2014
Record last verified: 2014-07