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Qin R, Liu Z, Cheng AQ, Zhou XM, Su Z, Cui ZY, Li JX, Wei XW, Zhao L, Chung KF, Xiao D, Wang C. Efficacy of varenicline or bupropion and its association with nicotine metabolite ratio among smokers with COPD. Respirology 2024; 29:479-488. [PMID: 38494828 DOI: 10.1111/resp.14702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/14/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND AND OBJECTIVE Nicotine metabolic ratio (NMR) has been associated with nicotine metabolism and smoking characteristics. However, there are few studies on the potential association between NMR and smoking cessation efficacy in smokers with chronic obstructive pulmonary disease (COPD) in China or elsewhere. METHODS This study was a stratified block randomized controlled trial for smoking cessation in Chinese smokers with COPD. NMR was used as a stratification factor; slow metabolizers were defined as those with NMR <0.31, and normal metabolizers as those with NMR ≥0.31. Participants were randomly assigned to the varenicline or bupropion group. Follow-up visits were conducted at 1, 2, 4, 6, 9, 12 and 24 weeks. RESULTS Two hundred twenty-four participants were recruited and analysed from February 2019 to June 2022. In normal metabolizers, the 9-12 weeks continuous abstinence rate of varenicline (43.1%) was higher than in bupropion (23.5%) (OR = 2.47, 95% CI 1.05-5.78, p = 0.038). There was no significant difference in abstinence rates between treatment groups in slow metabolizers (54.1% vs. 45.9%, OR = 1.39, 95% CI 0.68-2.83, p = 0.366). For slow metabolizers, the total score of side effects in the varenicline group was significantly higher than the bupropion group (p = 0.048), while there was no significant difference in side effects between groups for normal metabolizers (p = 0.360). CONCLUSION Varenicline showed better efficacy than bupropion in normal metabolizers, and bupropion showed equivalent efficacy in slow metabolizers with less side effects. According to our study, NMR provides a better justification for both scientific research and tailoring optimal pharmacotherapy for smoking cessation among smokers in COPD.
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Affiliation(s)
- Rui Qin
- China-Japan Friendship Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - Zhao Liu
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - An-Qi Cheng
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - Xin-Mei Zhou
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - Zheng Su
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - Zi-Yang Cui
- Department of Geriatric Medicine, Beijing Shijitan Hospital, Beijing, China
| | - Jin-Xuan Li
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
- Capital Medical University, Beijing, China
| | - Xiao-Wen Wei
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
- Capital Medical University, Beijing, China
| | - Liang Zhao
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Dan Xiao
- China-Japan Friendship Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Tobacco Control and Prevention of Respiratory Disease, China-Japan Friendship Hospital, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
| | - Chen Wang
- China-Japan Friendship Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
- National Center for Respiratory Medicine, Beijing, China
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Minian N, Wong M, Hafuth S, Rodak T, Rahimi A, Gjomema D, Rose J, Zawertailo L, Ratto M, Selby P. Identifying determinants of varenicline adherence using the Theoretical Domains framework: a rapid review. BMC Public Health 2024; 24:679. [PMID: 38438884 PMCID: PMC10910805 DOI: 10.1186/s12889-024-18139-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 02/17/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Adhering to varenicline has been shown to significantly improve the chances of successfully quitting smoking, with studies indicating a twofold increase in 6-month quit rates. However, despite its potential benefits, many individuals struggle with maintaining good adherence to varenicline; thus there is a need to develop scalable strategies to help people adhere. As a first step to inform the development of an intervention to improve adherence to varenicline, we conducted a rapid literature review to identify: 1) modifiable barriers and facilitators to varenicline adherence, and 2) behaviour change techniques associated with increased adherence to varenicline. METHODS We searched MEDLINE, Embase, APA PsycINFO, CINAHL, and the Cochrane Central Register of Controlled Trials for relevant studies published between 2006 and 2022. Search terms included "varenicline," "smoking cessation," and "adherence," and their respective subject headings and synonyms. We screened and included studies reporting modifiable determinants of adherence to varenicline and then assessed quality, extracted modifiable determinants and mapped them to the Theoretical Domains Framework version 2 and the Behaviour Change Technique Taxonomy version 1. RESULTS A total of 1,221 titles were identified through the database searches; 61 met the eligibility criteria. Most of the studies were randomized controlled trials and predominantly focused on barriers to varenicline. Only nine studies explicitly mentioned behaviour change techniques used to help varenicline adherence. Eight domains were identified as barriers to varenicline adherence (behavioural regulation, memory, goals, intentions, beliefs about capabilities, beliefs about consequences, optimism/pessimism, and environmental context) and five as facilitators (knowledge, behavioural regulation, beliefs about capabilities, social influences, and environmental context). CONCLUSIONS This study identifies barriers and facilitators that should be addressed when developing a complex adherence intervention tailored to patients' needs based on modifiable determinants of medication adherence, some of which are under- used by existing adherence interventions. The findings from this review will inform the design of a theory-based healthbot planned to improve varenicline adherence in people undergoing smoking cessation treatment. SYSTEMATIC REVIEW REGISTRATION This study was registered with PROSPERO (# CRD42022321838).
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Affiliation(s)
- Nadia Minian
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada.
- Department of Family and Community Medicine, University of Toronto, Toronto, ON , Canada.
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.
| | - Melissa Wong
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Sowsan Hafuth
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Terri Rodak
- Department of Education, CAMH Library, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Alma Rahimi
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
| | - Dea Gjomema
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
| | - Jonathan Rose
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
- Department of Electrical and Computer Engineering, The Edward S. Rogers Sr, University of Toronto, Toronto, ON, Canada
| | - Laurie Zawertailo
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Matt Ratto
- Faculty of Information Bell University Labs Chair in Human-Computer Interaction Faculty Affiliate, Schwartz-Reisman Institute for Technology and Society, University of Toronto, Toronto, ON, Canada
| | - Peter Selby
- INTREPID Lab (Formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 1025 Queen St W, Toronto, ON, M6H 1H4, Canada
- Department of Family and Community Medicine, University of Toronto, Toronto, ON , Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
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Pérez-Padilla R. Letter from Mexico: A 2023 post-COVID update. Respirology 2023; 28:1084-1085. [PMID: 37593966 DOI: 10.1111/resp.14573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 07/23/2023] [Indexed: 08/19/2023]
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Feng L, Lv X, Wang Y, Chu S, Dai Z, Jing H, Tong Z, Liao X, Liang L. Developments in smoking cessation interventions for patients with chronic obstructive pulmonary disease in the past 5 years: a scoping review. Expert Rev Respir Med 2022; 16:749-764. [PMID: 35916493 DOI: 10.1080/17476348.2022.2108797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Smoking cessation is the most effective strategy for slowing the progression of chronic obstructive pulmonary disease (COPD). However, COPD patients find it difficult to quit smoking with standard cessation interventions. AREAS COVERED A scoping review of smoking cessation for COPD patients was conducted by searching the MEDLINE, Embase, and Cochrane Library databases for all studies published between 1 January 2016 and 22 September 2021. Four themes were set up and 47 studies were included eventually. The majority of the included studies (61.7%, 29/47) investigated efficacy and effectiveness, including new strategies for extended treatment and mobile health (mHealth) delivery approach. Studies examining accessibility and utilization (31.9%, 15/47), safety (10.6%, 5/47), and health economics (6.4%, 3/47) were also reviewed. The quality of the included randomized controlled trials was also evaluated. EXPERT OPINION Pharmacotherapy combined with behavioral interventions delivered via mHealth may be a promising strategy to help COPD smokers quit. However, the overall quality of the current studies is poor, making it challenging for clinicians to make informed decisions. Future high-quality studies are needed to provide conclusive evidence on the optimal pharmacotherapies and the most cost-effective comprehensive smoking cessation interventions, particularly those integrated into disease management for smokers with COPD.
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Affiliation(s)
- Lin Feng
- Department of Research on Tobacco Dependence Therapies, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xiaoshuang Lv
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yingquan Wang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shuilian Chu
- Department of Research on Tobacco Dependence Therapies, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zeqi Dai
- Center for Evidence Based Chinese Medicine, Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100010, China
| | - Hang Jing
- Department of Research on Tobacco Dependence Therapies, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhaohui Tong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xing Liao
- Center for Evidence Based Chinese Medicine, Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100010, China
| | - Lirong Liang
- Department of Research on Tobacco Dependence Therapies, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Kalmin MM, Westreich D, Drummond BM, Sun J, Mehta SH, Kirk GD. Incident obstructive lung disease and mortality among people with HIV and a history of injecting drugs. AIDS 2021; 35:1451-1460. [PMID: 33831913 PMCID: PMC8243832 DOI: 10.1097/qad.0000000000002914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE People with HIV (PWH) experience increased prevalence of obstructive lung disease (OLD), regardless of greater observed smoking behaviors. We investigated whether the effect of incident OLD on mortality differed by HIV and HIV viral suppression among persons who inject drugs (PWID) and report smoking history. DESIGN ALIVE is a longitudinal, observational cohort study of HIV-positive and seronegative PWID. This analysis included participants who had at least one spirometry measure to assess OLD between 2007 and 2016, excluding those who never smoked (5%, n = 62) or had baseline OLD (17%, n = 269). METHODS Incident OLD occurred when the first prebronchodilator forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) less than 0.70 during follow-up. The effect of incident OLD on all-cause mortality was estimated in PWH and seronegative participants using inverse-probability-of-treatment-weighted marginal structural models controlling for baseline (age, race, sex, calendar year, smoking pack-years) and time-varying (smoking intensity, viral suppression, and calendar time) confounders. RESULTS Among 1204 participants, 269 (22.3%) and 157 (13.0%) experienced incident OLD and death, respectively, over a median of five person-years of follow-up. There was no effect of OLD on mortality among seronegative participants [hazard ratio = 0.84, 95% confidence interval (CI): 0.47-1.48]; however, PWH diagnosed with OLD experienced an increased mortality risk (hazard ratio = 1.71, 95% CI: 1.04-2.80) during follow-up. HIV viral suppression did not confound or modify the effect of OLD on mortality among PWH. CONCLUSION There was an apparent effect of OLD on all-cause mortality irrespective of viral suppression among PWH but not among seronegative persons, after accounting for baseline and time-varying confounders. These results highlight the need for enhanced screening and management of OLD among PWH.
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Affiliation(s)
- Mariah M Kalmin
- Department of Family Medicine, University of California, Los Angeles, California
| | | | - Bradley M Drummond
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Jing Sun
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Shruti H Mehta
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Gregory D Kirk
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland, USA
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Antoniu SA, Buculei I, Mihaltan F, Crisan Dabija R, Trofor AC. Pharmacological strategies for smoking cessation in patients with chronic obstructive pulmonary disease: a pragmatic review. Expert Opin Pharmacother 2020; 22:835-847. [PMID: 33372557 DOI: 10.1080/14656566.2020.1858796] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: Chronic obstructive pulmonary disease (COPD) is progressive inflammatory disease of the lungs in which smoking plays a significant pathogenic role. Smoking cessation is the only therapeutic intervention which was demonstrated to interfere with disease progression. Smoking cessation intervention can benefit from pharmacological therapies such as nicotine replacement therapies, bupropion, or varenicline which can be given individually or in combination, their effectiveness being demonstrated in various clinical trials enrolling COPD patients.Areas covered: The authors provide a pragmatic discussion of the clinical data of the main studies evaluating therapies for smoking cessation within COPD starting with the seminal Lung Health Study and continuing with more recent ones.Expert opinion: Smoking cessation is one of the most difficult therapeutic interventions in COPD, despite having the highest impact on disease progression and despite the demonstrated benefit of the discussed pharmacological therapies. Potential approaches to maximize its chance of success might be represented by prolonging the time of administration, combinational options, or sequential pharmacotherapy.
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Affiliation(s)
- Sabina Antonela Antoniu
- Dept of Medicine II-Nursing/Palliative Care, University of Medicine and Pharmacy "Grigore T Popa", Iasi, Romania
| | - Ioana Buculei
- In-training Physician, University of Medicine and Pharmacy "Grigore T Popa", Iasi, Romania
| | - Florin Mihaltan
- Faculty of Medicine-Department 4-Pulmonary Disease, University of Medicine and Pharmacy Carol Davila, Bucuresti, Romania
| | - Radu Crisan Dabija
- Dept of Medicine II-Pulmonary Disease, University of Medicine and Pharmacy "Grigore T Popa", Iasi, Romania
| | - Antigona Carmen Trofor
- Dept of Medicine II-Pulmonary Disease, University of Medicine and Pharmacy "Grigore T Popa", Iasi, Romania
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Abstract
More than one-third of patients with chronic obstructive pulmonary disease (COPD) continue to smoke cigarettes despite knowing they have the disease. This behavior has a negative impact on prognosis and progression, as repeated injury enhances the pathobiological mechanisms responsible for the disease. A combination of counseling plus pharmacotherapy is the most effective cessation treatment of smokers with COPD, and varenicline seems to be the most effective pharmacologic intervention. Preventing exacerbations in patients with COPD is a major goal of treatment, and vaccination against influenza and pneumococcus is an effective preventive strategy to achieve this goal.
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Affiliation(s)
- Maria Montes de Oca
- Servicio de Neumonología, Hospital Universitario de Caracas, Facultad de Medicina, Universidad Central de Venezuela, Centro Médico de Caracas, Av. Los Erasos, Edf. Anexo B, Piso 4, Consultorio 4B, San Bernardino, Caracas, Venezuela.
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Lotfy N, Elsawah H, Hassan M. Topiramate for smoking cessation: Systematic review and meta-analysis. Tob Prev Cessat 2020; 6:14. [PMID: 32548351 PMCID: PMC7291892 DOI: 10.18332/tpc/115167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 12/04/2019] [Accepted: 12/09/2019] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Topiramate is an antiepileptic drug that has been used for many labeled and off-labeled indications. It may be useful in reducing withdrawal symptoms of various addictive agents such as alcohol, cocaine, cannabis and smoking. To date, some studies have examined the effectiveness of topiramate for smoking cessation. The present review aims to synthesize the results from those studies and determine topiramate effectiveness in smoking cessation. METHODS A comprehensive search was conducted in the databases: PubMed/Medline, Cochrane, Egyptian Knowledge Bank, and Google Scholar. All clinical trials that examined the effect of topiramate, compared with the placebo, on smoking cessation rate were included. Statistical analysis using fixed effect models, heterogeneity and sensitivity analysis were conducted using RevMan 5.3. RESULTS Five trials met the inclusion criteria and were included in the meta-analysis. Topiramate non-significantly increased prolonged smoking abstinence rate (OR=1.19, 95% CI: 0.57–2.5) compared with the placebo. On the other hand, topiramate significantly increased the abstinence rate at weeks 4, 6, 8 and 12 (OR=3.07, 95% CI: 1.19–7.93; OR=4.03, 95% CI: 1.98–8.2; OR=2.29, 95% CI: 1.23–4.28; and OR=2.45, 95% CI: 1.37–4.39; respectively) compared with the placebo. CONCLUSIONS Based on the five trials, where publication bias cannot be excluded, the current evidence is not sufficient to show a significant difference to favor topiramate in prolonged smoking cessation over the placebo, although the 12th week point prevalence favored topiramate.
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Affiliation(s)
- Nesma Lotfy
- High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Hozaifa Elsawah
- High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Mona Hassan
- High Institute of Public Health, Alexandria University, Alexandria, Egypt
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