A Multi-National Study To Assess How Effective And Safe The Smoking Cessation Medicine Varenicline Is In Smokers Who Have Already Tried Varenicline In The Past As A Prescription Medicine From Their Usual Healthcare Provider
A Phase 4 Randomized, Double-Blind, Placebo-Controlled, Multicenter Study Evaluating The Efficacy And Safety Of Re-Treatment With Varenicline In Subjects Who Are Currently Smoking, And Who Have Previously Taken Varenicline
1 other identifier
interventional
498
8 countries
37
Brief Summary
The main purpose of this study is to compare the effectiveness and safety of the re-treatment of smokers with varenicline with placebo for smoking cessation during the last 4 weeks of a 12 week course of treatment. The study will also assess whether smokers remain abstinent at Week 24 (12 weeks after the end of treatment) and Week 52 (40 weeks after the end of treatment).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Dec 2010
37 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 17, 2010
CompletedFirst Posted
Study publicly available on registry
November 19, 2010
CompletedStudy Start
First participant enrolled
December 1, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2012
CompletedResults Posted
Study results publicly available
June 9, 2014
CompletedJune 9, 2014
May 1, 2014
1.9 years
November 17, 2010
October 30, 2013
May 20, 2014
Conditions
Outcome Measures
Primary Outcomes (1)
Continuous Abstinence Rate (CAR) From Week 9 Through Week 12
The percentage of participants who, from Week 9 through Week 12, reported no smoking and no use of other nicotine-containing products since the last study visit/last contact (on the Nicotine Use Inventory) and who did not have carbon monoxide (CO)\> 10ppm at any visits during this time frame.
Week 9 through Week 12
Secondary Outcomes (3)
CAR From Week 9 Through Week 52
Week 9 through Week 52
CAR From Week 9 Through Week 24
Week 9 through Week 24
7-day Point Prevalence (PP) of Abstinence at Weeks 12, 24, and 52
Weeks 12, 24 and 52
Study Arms (2)
Varenicline
EXPERIMENTALPlacebo
PLACEBO COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- Smokers aged 18 years or above and wanting to stop smoking
- Smokers who have smoked an average of at least 10 cigarettes per day over the last 4 weeks
- Smokers who have tried before to stop smoking at least once with varenicline, and who took varenicline for at least 2 weeks
- The last attempt to stop smoking must be at least 3 months before entering the study
You may not qualify if:
- Individuals who have not tolerated varenicline well previously, or who have a current or prior medical or psychiatric history that would make entry into the trial inadvisable
- Individuals who have previously participated in clinical trials of varenicline
- Individuals who have been participating in another smoking cessation trial within the last 3 months, or other drug trial within the last 30 days
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Pfizerlead
Study Sites (37)
Ronald Reagan University of California Los Angeles Medical Center
Los Angeles, California, 90095-6984, United States
University of California Los Angeles David Geffen School of Medicine
Los Angeles, California, 90095, United States
Avail Clinical Research, LLC
DeLand, Florida, 32720, United States
Central Kentucky Research Associates, Inc.
Lexington, Kentucky, 40509, United States
The University of Maryland
College Park, Maryland, 20742, United States
The Center for Pharmaceutical Research, PC
Kansas City, Missouri, 64114, United States
Oregon Health and Science University
Portland, Oregon, 97239-3098, United States
Clinical Research Associates, Inc.
Nashville, Tennessee, 37203, United States
Australian Clinical Research Network
Maroubra, New South Wales, 2035, Australia
Royal Brisbane and Women's Hospital
Herston, Queensland, 4029, Australia
AusTrials Australia
Sherwood, Queensland, 4075, Australia
Emeritus Research
Malvern, Victoria, 3145, Australia
Universitair Ziekenhuis Antwerpen, Afdeling Pneumologie
Edegem, 2650, Belgium
Universitaire Ziekenhuizen Leuven/Pneumologie
Leuven, 3000, Belgium
Centre Hospitalier Universitaire de Liege
Liège, 4000, Belgium
Cliniques Universitaires U.C.L. de Mont-Godinne/Laboratoire
Yvoir, 5530, Belgium
Office of Dr. Ronald Collette
Burnaby, British Columbia, V5G 1T4, Canada
White Hills Medical Clinic
St. John's, Newfoundland and Labrador, A1A 3R5, Canada
Canadian Phase Onward Inc.
Toronto, Ontario, M3H 5S4, Canada
Clinique des maladies Lipidiques de Quebec
Québec, Quebec, G1V 4M6, Canada
Fakultni nemocnice Brno
Brno, 625 00, Czechia
Krajska nemocnice Liberec a.s., Plicni oddeleni
Liberec, 460 01, Czechia
Mestska nemocnice Ostrava, Plicni oddeleni
Ostrava, 728 80, Czechia
Vseobecna fakultni nemocnice v Praze
Prague, 120 00, Czechia
CHU de la Cavale Blanche
Brest, 29609, France
CHU Côte de Nacre, Unité de Coordination de Tabacologie
Caen, 14033, France
Hopital Arnaud de Villeneuve
Montpellier, 34295, France
Universitaetsklinikum Goettingen Zentrum Innere Medizin Abteilung Kardiologie und Pneumologie
Göttingen, Germany, 37075, Germany
Klinische Forschung Berlin
Berlin, 10787, Germany
Klinische Forschung Hamburg GmbH
Hamburg, 20253, Germany
Ludwig Maximilians-Universitaet Muenchen
München, 80336, Germany
FOCUS Clinical Drug Development GmbH
Neuss, 41460, Germany
Synexus Thames Valley Clinical Research Centre
Reading, Berks, RG2 0TG, United Kingdom
Synexus Lancashire Clinical Research Centre
Chorley, Lancashire, PR7 7NA, United Kingdom
Synexus Scotland Clinical Research Centre
Glasgow, G20 0SP, United Kingdom
Synexus, Merseyside Clinical Research Centre
Liverpool, L22 0LG, United Kingdom
William Harvey Research Institute,
London, EC1M 6BQ, United Kingdom
Related Publications (2)
Livingstone-Banks J, Fanshawe TR, Thomas KH, Theodoulou A, Hajizadeh A, Hartman L, Lindson N. Nicotine receptor partial agonists for smoking cessation. Cochrane Database Syst Rev. 2023 May 5;5(5):CD006103. doi: 10.1002/14651858.CD006103.pub8.
PMID: 37142273DERIVEDGonzales D, Hajek P, Pliamm L, Nackaerts K, Tseng LJ, McRae TD, Treadow J. Retreatment with varenicline for smoking cessation in smokers who have previously taken varenicline: a randomized, placebo-controlled trial. Clin Pharmacol Ther. 2014 Sep;96(3):390-6. doi: 10.1038/clpt.2014.124. Epub 2014 Jun 9.
PMID: 24911368DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
One SAE, exposure via semen, was not included under the Adverse Events since this event was considered to be experienced by a non-study participant, who was the study participant's partner. This event was coded as nonserious in the safety database.
Results Point of Contact
- Title
- Pfizer ClinicalTrials.gov Call Center
- Organization
- Pfizer, Inc.
Study Officials
- STUDY DIRECTOR
Pfizer CT.gov Call Center
Pfizer
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 17, 2010
First Posted
November 19, 2010
Study Start
December 1, 2010
Primary Completion
November 1, 2012
Study Completion
November 1, 2012
Last Updated
June 9, 2014
Results First Posted
June 9, 2014
Record last verified: 2014-05