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The efficacy of varenicline in achieving abstinence among waterpipe tobacco smokers - study protocol for a randomized controlled trial

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Title: The efficacy of varenicline in achieving abstinence among waterpipe tobacco smokers - study protocol for a randomized controlled trial
Authors: Zahid, R
Dogar, O
Mansoor, S
Khan, A
Kanaan, M
Jawad, M
Ahluwalia, JS
Siddiqi, K
Item Type: Journal Article
Abstract: Background: Waterpipe tobacco smoking has increased among youth across the globe including in the US, and it continues as a common and traditional form of smoking tobacco in Pakistan. A range of behavioral and pharmacological therapies are available to support people in quitting cigarette smoking; however, little evidence exists for the efficacy of these therapies in achieving abstinence among waterpipe tobacco smokers. The objective of this study is to assess the efficacy of varenicline when added to behavioral support for waterpipe tobacco smoking cessation, by measuring biochemically validated continuous abstinence in waterpipe tobacco smokers. Methods/design: This is a two-arm, double-blind, placebo-controlled randomized trial conducted in four districts in Punjab, Pakistan. Study participants include adults using a waterpipe (with or without concomitant cigarette, bidi or other forms of tobacco smoking) on a daily basis for at least 6 months and who are willing to quit. We will individually randomize 510 participants to one of the two arms of the trial. Participants in the intervention arm will receive varenicline and behavioral support and those in the control arm will receive placebo and behavioral support. The primary outcome will be continuous abstinence for at least 6 months (week 25) which is biochemically verified by a carbon monoxide level of <10 ppm. Secondary outcomes will include biochemically verified 7-day point abstinence at 5, 12 and 25 weeks and any lapses and relapses between the different assessment points. Tertiary outcomes will include assessment of withdrawal symptoms using the Mood and Physical Symptoms Scale (MPSS), smoking dependency using the Lebanon Waterpipe Dependency Scale (LWDS-11) and monitoring adverse outcomes. Discussion: This is an efficacy trial and would require a subsequent effectiveness trial for a definitive evaluation of the intervention.
Issue Date: 11-Jan-2017
Date of Acceptance: 20-Dec-2016
URI: http://hdl.handle.net/10044/1/44580
DOI: https://dx.doi.org/10.1186/s13063-016-1761-y
ISSN: 1745-6215
Publisher: BioMed Central
Journal / Book Title: Trials
Volume: 18
Issue: 2017
Copyright Statement: © 2017 The Author(s). Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Keywords: Science & Technology
Life Sciences & Biomedicine
Medicine, Research & Experimental
Research & Experimental Medicine
Waterpipe
Tobacco
Smoking
Hookah
Shisha
Pharmacotherapy
Varenicline
Cessation
Abstinence
Behavioral support
SMOKING-CESSATION
DEPENDENCE
CIGARETTE
General & Internal Medicine
1102 Cardiovascular Medicine And Haematology
1103 Clinical Sciences
Publication Status: Published
Open Access location: https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1761-y
Article Number: ARTN 14
Appears in Collections:Epidemiology, Public Health and Primary Care



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