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Jackson SE, Brown J, Tattan-Birch H, Shahab L. Impact of the disruption in supply of varenicline since 2021 on smoking cessation in England: A population study. Addiction 2024. [PMID: 38688323 DOI: 10.1111/add.16485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/26/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND AND AIMS Varenicline is one of the most effective smoking cessation treatments. Its supply in England was disrupted in July 2021 due to nitrosamine impurities found by its supplier, Pfizer. This study measured the impact of this disruption on smoking cessation in England. DESIGN, SETTING AND PARTICIPANTS The study used repeated cross-sectional surveys conducted monthly, from June 2018 to December 2022. Set in England, it comprised a total of 3024 adults who reported smoking during the past year and had made at least one serious attempt to quit in the past 6 months. MEASUREMENTS Generalized additive models analyzed the association of the varenicline supply disruption with the trend in self-reported varenicline use in the most recent quit attempt. We used these results to estimate the population-level impact of the disruption on smoking cessation. FINDINGS Before July 2021, the proportion of past 6-month quit attempts using varenicline was stable at approximately 3.9% [risk ratio (RR)trend = 1.034, 95% confidence interval (CI) = 0.823-1.298]. The trend in varenicline use has changed sharply since the supply disruption (RRΔtrend = 0.297, 95% CI = 0.120-0.738), with prevalence falling by 69.3% per year since; from 4.1% in June 2021 to 0.8% in December 2022. Convergently, National Health Service general practitioner prescribing data reported that just 0.1% of prescriptions for smoking cessation treatments in December 2022 were for varenicline. Assuming that varenicline does not return to the market, we estimate that this could result in ~8400 fewer people stopping smoking for at least 6 months, ~4200 fewer long-term ex-smokers and ~1890 more avoidable deaths each year. CONCLUSIONS In England, the disruption in supply of varenicline since 2021 has coincided with a substantial fall in the use of varenicline in attempts to quit smoking.
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Affiliation(s)
- Sarah E Jackson
- Department of Behavioural Science and Health, University College London, London, UK
- SPECTRUM Consortium, Edinburgh, UK
| | - Jamie Brown
- Department of Behavioural Science and Health, University College London, London, UK
- SPECTRUM Consortium, Edinburgh, UK
| | - Harry Tattan-Birch
- Department of Behavioural Science and Health, University College London, London, UK
- SPECTRUM Consortium, Edinburgh, UK
| | - Lion Shahab
- Department of Behavioural Science and Health, University College London, London, UK
- SPECTRUM Consortium, Edinburgh, UK
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Gaya PV, Santos JR, Tomaz PRX, Abe TMO, Nassif M, Galas LG, Bellini BB, Moraes IR, Santos PCL, Correa PCRP, Scholz JR. Efficacy of bupropion and varenicline genetic markers in choosing pharmacological treatment for smoking cessation, and implications for combining drugs: A randomized controlled trial - GENTSMOKING. Tob Induc Dis 2024; 22:TID-22-62. [PMID: 38628555 PMCID: PMC11019925 DOI: 10.18332/tid/186072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 04/19/2024] Open
Abstract
INTRODUCTION Smoking cessation is the best strategy for reducing tobacco-related morbimortality. The goal of this randomized controlled trial was to test whether using the genetically favorable markers to choose a smoking cessation drug treatment (precision medicine) was superior to using the most effective drug (varenicline) in terms of abstinence rates. Additionally, combination therapy was tested when monotherapy failed. METHODS This partially blind, single-center study randomized (1:1) 361 participants into two major groups. In the genetic group (n=184), CYP2B6 rs2279343 (genotype AA) participants started treatment with bupropion, and CHRNA4 rs1044396 (genotype CT or TT) participants started treatment with varenicline; when genetic favorable to both, participants started treatment with bupropion, and when favorable to neither, on both drugs. In the control group (n=177), participants started treatment with varenicline, regardless of genetic markers. Drug treatment lasted 12 weeks. Efficacy endpoints were abstinence rates at Weeks 4, and Weeks 8-12, biochemically validated by carbon monoxide in exhaled air. Participants who did not achieve complete abstinence at Week 4, regardless of group, were given the choice to receive combination therapy. RESULTS Abstinence rates were 42.9% (95% CI: 36-64) in the control group versus 30.4% (95% CI: 23-37) in the genetic group at Week 4 (p=0.01); and 74% (95% CI: 67-80) versus 52% (95% CI: 49-64) at Week 12 (p<0.001), respectively. The strategy of combining drugs after Week 4 increased abstinence rates in both groups and the significant difference between genetic and control groups was maintained. CONCLUSIONS Results show that using these selected genetic markers was inferior to starting treatment with varenicline (control group), which is currently the most effective smoking cessation drug; moreover, the addition of bupropion in cases of varenicline monotherapy failure improves the efficacy rate until the end of treatment. CLINICAL TRIAL IDENTIFIER NCT03362099.
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Affiliation(s)
- Patricia V. Gaya
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Juliana R. Santos
- Laboratorio de Genetica e Biologia Molecular, Instituto do Coracao, Hospital da Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Paulo R. X. Tomaz
- Laboratorio de Genetica e Biologia Molecular, Instituto do Coracao, Hospital da Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Tania M. O. Abe
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Miguel Nassif
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Larissa G. Galas
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Bianca B. Bellini
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Iana R. Moraes
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Paulo C. Lima Santos
- Departamento de Farmacologia, Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | | | - Jaqueline R. Scholz
- Programa de Tratamento do Tabagismo do Servico de Prevencao e Reabilitacao, Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
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Pozzi P, Boffi R, Veronese C, Trussardo S, Valsecchi C, Sabia F, Pastorino U, Apolone G, Cardani E, Tarantini F, Munarini E. Cytisine as a smoking cessation aid: Preliminary observations with a modified therapeutic scheme in real life. Tumori 2024; 110:124-131. [PMID: 38149659 PMCID: PMC11005299 DOI: 10.1177/03008916231216906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION Cigarette smoke accounts for over 90,000 deaths each year in Italy. Tobacco dependence treatment guidelines suggest adopting an integrated pharmacological-behavioral model of intervention. Cytisine is a partial agonist of nicotinic receptors. Trials conducted to date have demonstrated its good efficacy in promoting smoking cessation. The cytisine scheme of treatment consists of 25 days of treatment. A 40-day regimen, with an escalating dose and an extended duration of the treatment, has been in use in many anti-smoking centers in Italy for several years, but to date there are no reports on the use of cytisine with this scheme. METHODS A retrospective, real-life, observational study was conducted between January 2016 and September 2022. The 300 patients who had received at least one dose of study medication were selected. Continuous variables were compared by the Wilcoxon-Mann-Whitney test. Univariate and multivariate logistic regression models were implemented for self-reported seven-day point prevalence for abstinence at three, six and 12 months. RESULTS The median age of the patients was 59 years, 57% were women. The median smoking exposure was 33.8 pack-years. Self-reported smoking abstinence at three, six and 12 months was 68.7%, 56.3% and 47.3% respectively. 84% completed the cytisine treatment, 31.3% reported adverse events and in 8.3% these led to dropping out of the treatment. CONCLUSION Cytisine, administered with a novel therapeutic scheme in the real-life setting of a specialized anti-smoking center, significantly promotes smoking abstinence. However, more studies are needed to assess the tolerability and efficacy of this new regimen.
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Affiliation(s)
- Paolo Pozzi
- Pulmonology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Roberto Boffi
- Pulmonology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Chiara Veronese
- Pulmonology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Sara Trussardo
- Department of Thoracic Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Camilla Valsecchi
- Department of Thoracic Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Federica Sabia
- Department of Thoracic Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Ugo Pastorino
- Department of Thoracic Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Giovanni Apolone
- Scientific Directorate, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Elisa Cardani
- Pulmonology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Francesco Tarantini
- Pulmonology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Elena Munarini
- Pulmonology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
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Chaisai C, Patikorn C, Thavorn K, Lee SWH, Chaiyakunapruk N, Veettil SK. Incremental net monetary benefit of using varenicline for smoking cessation: A systematic review and meta-analysis of economic evaluation studies. Addiction 2024. [PMID: 38520121 DOI: 10.1111/add.16464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 01/25/2024] [Indexed: 03/25/2024]
Abstract
AIMS To conduct a systematic review and meta-analysis and pool the incremental net benefits (INBs) of varenicline compared with behaviour support with bupropion or nicotine replacement therapy (NRT), behaviour support alone and unaided cessation in adult smokers making a first-time attempt to quit. METHODS A search for economic evaluation studies was conducted from inception to 30 September 2022, on PubMed, Embase, Cost-Effectiveness Analysis (CEA) Registry by Tufts Medical Centre, EconLit and the NHS Economic Evaluation Database (NHS EED). Eligible studies were included if they were (1) conducted among adults ages 18 years old and older who were smokers attempting to quit for the first time; (2) compared varenicline to behaviour support with bupropion or NRT, behaviour support alone and unaided cessation; and (3) performed a CEA or cost-utility analysis. The INBs were calculated and pooled across studies stratified by country income level and study perspective using the random-effects model. Statistical heterogeneity between studies was assessed using the I2 statistic and Cochrane Q statistic. RESULTS Of the 1433 identified studies, 18 studies were included in our review. Our findings from healthcare system/payer perspective suggested that the use of varenicline is statistically significantly cost-effective compared with bupropion (pooled INB, $830.75 [95% confidence interval, $208.23, $1453.28]), NRTs ($636.16 [$192.48, $1079.84]) and unaided cessation ($4212.35 [$1755.79, $6668.92]) in high-income countries. Similarly, varenicline is also found to be cost-effective compared to bupropion ($2706.27 [$1284.44, $4128.11]), NRTs ($3310.01 [$1781.53, $4838.50]) and behavioural support alone ($5438.22 [$4105.99, $6770.46]) in low- and middle-income countries. CONCLUSION Varenicline is cost-effective as a smoking cessation aid when compared with behavioural support with bupropion or nicotine replacement therapies and behavioural support alone in both high-income countries and low- and middle-income countries, from the healthcare system/payer perspective in adult smokers who attempt to quit for the first time.
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Affiliation(s)
- Chayutthaphong Chaisai
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Chanthawat Patikorn
- Department of Pharmacotherapy, University of Utah, Salt Lake City, Utah, USA
- Department of Social and Administrative Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Kednapa Thavorn
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Shaun Wen Huey Lee
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia
- School of Medicine, Taylor's University, Selangor, Malaysia
| | - Nathorn Chaiyakunapruk
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia
- Department of Pharmacotherapy, University of Utah, Salt Lake City, Utah, USA
- IDEAS Centre, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, Utah, USA
| | - Sajesh K Veettil
- Department of Pharmacotherapy, University of Utah, Salt Lake City, Utah, USA
- School of Medicine, Taylor's University, Selangor, Malaysia
- School of Pharmacy, Department of Pharmacy Practice, International Medical University, Kuala Lumpur, Malaysia
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Perfluorohexyloctane ophthalmic solution (Miebo) for dry eye disease. Med Lett Drugs Ther 2024; 66:13-14. [PMID: 38212258 DOI: 10.58347/tml.2024.1694c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The FDA has approved perfluorohexyloctane ophthalmic solution (Miebo – Bausch+Lomb) for treatment of dry eye disease. Available only by prescription, Miebo is the first ophthalmic product to be approved in the US that specifically targets tear evaporation caused by meibomian gland dysfunction. An ophthalmic solution with a similar name, Miebo Tears (Vista), which contains 0.6% propylene glycol, is available over the counter for dry eye relief.
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Baskerville WA, Grodin EN, Ray LA. Influence of sleep quality on lapse to alcohol use during a quit attempt. Alcohol Alcohol 2024; 59:agae009. [PMID: 38366914 PMCID: PMC10873907 DOI: 10.1093/alcalc/agae009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/27/2023] [Accepted: 12/16/2023] [Indexed: 02/19/2024] Open
Abstract
AIMS Sleep problems are common among individuals with alcohol use disorder (AUD) and is often associated with a heightened relapse risk. The present study examines the relationship between sleep and alcohol use among individuals with current AUD during a 6-day quit attempt as part of a medication study. METHODS The current study is a secondary analysis of a medication trial for individuals with AUD. Individuals with AUD (N = 53, 26 females) were randomized to active medication or matched placebo. Randomized participants completed a week-long medication titration (Days 1-7). Following the titration period, participants attended an in-person visit (Day 8) to begin a 6-day quit attempt. During the quit attempt, participants completed daily diary assessments to report on previous day alcohol consumption, sleep quality, and alcohol craving. In the present study, medication condition was controlled for in all models. RESULTS Baseline global sleep quality was not a significant predictor of drinks per drinking day (P = 0.72) or percent days abstinent (P = 0.16) during the 6-day practice quit attempt. Daily diary analyses found that greater sleep quality was associated with higher next-day drinks per drinking day (b = 0.198, P = 0.029). In contrast, participants reported worse sleep quality following nights of greater alcohol intake, albeit at a trend-level (b = -0.12, P = 0.053). CONCLUSIONS These results suggest that better sleep quality was a risk factor for drinking during the 6-day quit period, such that better sleep may be associated with increased craving for alcohol and alcohol use the next day. These findings are limited to the early abstinence period and should be considered in studies exploring longer periods of abstinence.
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Affiliation(s)
- Wave-Ananda Baskerville
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 51563, Los Angeles, CA 90095-1563, United States
| | - Erica N Grodin
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 51563, Los Angeles, CA 90095-1563, United States
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, 757 Westwood Plaza #4, Los Angeles, CA 90095, United States
| | - Lara A Ray
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 51563, Los Angeles, CA 90095-1563, United States
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, 757 Westwood Plaza #4, Los Angeles, CA 90095, United States
- Brain Research Institute, University of California, Los Angeles, 695 Charles E Young Dr. S, Los Angeles, CA 90095, United States
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Minian N, Mehra K, Earle M, Hafuth S, Ting-A-Kee R, Rose J, Veldhuizen S, Zawertailo L, Ratto M, Melamed OC, Selby P. AI Conversational Agent to Improve Varenicline Adherence: Protocol for a Mixed Methods Feasibility Study. JMIR Res Protoc 2023; 12:e53556. [PMID: 38079201 PMCID: PMC10750231 DOI: 10.2196/53556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/10/2023] [Accepted: 11/23/2023] [Indexed: 12/28/2023] Open
Abstract
BACKGROUND Varenicline is a pharmacological intervention for tobacco dependence that is safe and effective in facilitating smoking cessation. Enhanced adherence to varenicline augments the probability of prolonged smoking abstinence. However, research has shown that one-third of people who use varenicline are nonadherent by the second week. There is evidence showing that behavioral support helps with medication adherence. We have designed an artificial intelligence (AI) conversational agent or health bot, called "ChatV," based on evidence of what works as well as what varenicline is, that can provide these supports. ChatV is an evidence-based, patient- and health care provider-informed health bot to improve adherence to varenicline. ChatV has been programmed to provide medication reminders, answer questions about varenicline and smoking cessation, and track medication intake and the number of cigarettes. OBJECTIVE This study aims to explore the feasibility of the ChatV health bot, to examine if it is used as intended, and to determine the appropriateness of proceeding with a randomized controlled trial. METHODS We will conduct a mixed methods feasibility study where we will pilot-test ChatV with 40 participants. Participants will be provided with a standard 12-week varenicline regimen and access to ChatV. Passive data collection will include adoption measures (how often participants use the chatbot, what features they used, when did they use it, etc). In addition, participants will complete questionnaires (at 1, 4, 8, and 12 weeks) assessing self-reported smoking status and varenicline adherence, as well as questions regarding the acceptability, appropriateness, and usability of the chatbot, and participate in an interview assessing acceptability, appropriateness, fidelity, and adoption. We will use "stop, amend, and go" progression criteria for pilot studies to decide if a randomized controlled trial is a reasonable next step and what modifications are required. A health equity lens will be adopted during participant recruitment and data analysis to understand and address the differences in uptake and use of this digital health solution among diverse sociodemographic groups. The taxonomy of implementation outcomes will be used to assess feasibility, that is, acceptability, appropriateness, fidelity, adoption, and usability. In addition, medication adherence and smoking cessation will be measured to assess the preliminary treatment effect. Interview data will be analyzed using the framework analysis method. RESULTS Participant enrollment for the study will begin in January 2024. CONCLUSIONS By using predetermined progression criteria, the results of this preliminary study will inform the determination of whether to advance toward a larger randomized controlled trial to test the effectiveness of the health bot. Additionally, this study will explore the acceptability, appropriateness, fidelity, adoption, and usability of the health bot. These insights will be instrumental in refining the intervention and the health bot. TRIAL REGISTRATION ClinicalTrials.gov NCT05997901; https://classic.clinicaltrials.gov/ct2/show/NCT05997901. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/53556.
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Affiliation(s)
- Nadia Minian
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, 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
| | - Kamna Mehra
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Mackenzie Earle
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Sowsan Hafuth
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Ryan Ting-A-Kee
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Jonathan Rose
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Edward S Rogers Sr Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, Canada
| | - Scott Veldhuizen
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada
| | - Laurie Zawertailo
- INTREPID Lab, Centre for Addiction and Mental Health, 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
| | - Matt Ratto
- Faculty of Information, University of Toronto, Toronto, ON, Canada
- Schwartz Reisman Institute for Technology and Society, University of Toronto, Toronto, ON, Canada
| | - Osnat C Melamed
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, 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
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Peter Selby
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, 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
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Pataka A, Kotoulas SC, Karkala A, Tzinas A, Kalamaras G, Kasnaki N, Sourla E, Stefanidou E. Obstructive Sleep Apnea and Smoking Increase the Risk of Cardiovascular Disease: Smoking Cessation Pharmacotherapy. J Clin Med 2023; 12:7570. [PMID: 38137639 PMCID: PMC10743586 DOI: 10.3390/jcm12247570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/03/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Tobacco smoking has been a recognized risk factor for cardiovascular diseases (CVD). Smoking is a chronic relapsing disease and pharmacotherapy is a main component of smoking cessation. Obstructive sleep apnea (OSA) and smoking both increase the risk of CVD and are associated with significant morbidity and mortality. There are few existing data examining how pharmacological treatment, such as nicotine replacement therapy (NRT), bupropion, and varenicline, affect smokers suffering with OSA and especially their cardiovascular effects. The aim of this review was to evaluate the effects of smoking cessation pharmacotherapy on OSA with a special emphasis on the cardiovascular system. Results: Only small studies have assessed the effect of NRTs on OSA. Nicotine gum administration showed an improvement in respiratory events but with no permanent results. No specific studies were found on the effect of bupropion on OSA, and a limited number evaluated varenicline's effects on sleep and specifically OSA. Varenicline administration in smokers suffering from OSA reduced the obstructive respiratory events, especially during REM. Studies on second-line medication (nortriptyline, clonidine, cytisine) are even more limited. There are still no studies evaluating the cardiovascular effects of smoking cessation medications on OSA patients. Conclusions: Sleep disturbances are common withdrawal effects during smoking cessation but could be also attributed to pharmacotherapy. Smokers should receive personalized treatment during their quitting attempts according to their individual needs and problems, including OSA. Future studies are needed in order to evaluate the efficacy and safety of smoking cessation medications in OSA patients.
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Affiliation(s)
- Athanasia Pataka
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
| | | | - Aliki Karkala
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
| | - Asterios Tzinas
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
| | - George Kalamaras
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
| | - Nectaria Kasnaki
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
| | - Evdokia Sourla
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
| | - Emiliza Stefanidou
- Respiratory Failure Unit, G. Papanikolaou Hospital Thessaloniki, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece; (A.K.); (A.T.); (G.K.); (N.K.); (E.S.); (E.S.)
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Sancho-Domingo C, Carballo JL, Coloma-Carmona A, van der Hofstadt C, García Del Castillo-López Á, Asensio Sánchez S. Effectiveness of the Brief Guided Self-Change Therapy Combined with Varenicline under "Real-Life" Conditions and Mediators for Smoking Cessation. Subst Use Misuse 2023; 59:110-118. [PMID: 37750391 DOI: 10.1080/10826084.2023.2262021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Background: Brief therapies have proven to reduce tobacco cost-effectively, however, unsuccessful quit attempts remain notable in real-life conditions, and the underlying mechanisms of treatment success are still unclear. Objectives: We aimed to analyze the effectiveness of the Guided Self-Change (GSC) therapy combined with varenicline (VAR+T) in public health services against varenicline alone (VAR), and to identify mediators of treatment outcomes. We conducted a two-arm quasi-experimental study with 126 treatment-seeking smokers (age=57.3±9.1 years; 59.5% women). Before treatment, and at weeks 12 and 24, we assessed tobacco use and five potential mediators: withdrawal, craving, motivation to quit, anxiety, and depression. Results: Only 25% of participants adhered to varenicline prescription, and 54% to GSC therapy. VAR+T group showed a greater proportion of abstainers compared to VAR group at week 12 (75% vs 57.4%; φc=0.21) and week 24 (62.9% vs 52.5%; φc=0.10). When controlling for weeks taking varenicline, motivation showed a significant indirect effect over abstinence rates in VAR+T compared with VAR (a1b1=1.34; 95%CI=0.04, 5.03). Conclusions: The GSC effectiveness seems to increase motivation which in turn contributes to reducing tobacco use. The implementation of GSC therapy in public health services could minimize treatment duration and increase smoking abstinence in 'real-life' conditions where varenicline adherence remains low.
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Affiliation(s)
- Clara Sancho-Domingo
- Health Psychology Department of Miguel Hernández University of Elche, Alicante, Spain
| | - José Luis Carballo
- Health Psychology Department of Miguel Hernández University of Elche, Alicante, Spain
- Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
| | - Ainhoa Coloma-Carmona
- Health Psychology Department of Miguel Hernández University of Elche, Alicante, Spain
- Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
| | - Carlos van der Hofstadt
- Health Psychology Department of Miguel Hernández University of Elche, Alicante, Spain
- Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
- Health Psychology Unit of Dr. Balmis General University Hospital, Alicante, Spain
| | | | - Santos Asensio Sánchez
- Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
- Pneumology Service of the General University Hospital of Alicante, Alicante, Spain
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Lin CL, Kiu YT, Kan JY, Chang YJ, Hung PY, Lu CH, Lin WL, Hsieh YW, Kao JY, Hu NJ, Lin CW. The Antiviral Activity of Varenicline against Dengue Virus Replication during the Post-Entry Stage. Biomedicines 2023; 11:2754. [PMID: 37893127 PMCID: PMC10604274 DOI: 10.3390/biomedicines11102754] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/08/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Dengue virus (DENV) poses a significant global health challenge, with millions of cases each year. Developing effective antiviral drugs against DENV remains a major hurdle. Varenicline is a medication used to aid smoking cessation, with anti-inflammatory and antioxidant effects. In this study, varenicline was investigated for its antiviral potential against DENV. This study provides evidence of the antiviral activity of varenicline against DENV, regardless of the virus serotype or cell type used. Varenicline demonstrated dose-dependent effects in reducing viral protein expression, infectivity, and virus yield in Vero and A549 cells infected with DENV-1 and DENV-2, with EC50 values ranging from 0.44 to 1.66 μM. Time-of-addition and removal experiments demonstrated that varenicline had a stronger inhibitory effect on the post-entry stage of DENV-2 replication than on the entry stage, as well as the preinfection and virus attachment stages. Furthermore, cell-based trans-cleavage assays indicated that varenicline dose-dependently inhibited the proteolytic activity of DENV-2 NS2B-NS3 protease. Docking models revealed the formation of hydrogen bonds and van der Waals forces between varenicline and specific residues in the DENV-1 and DENV-2 NS2B-NS3 proteases. These results highlight the antiviral activity and potential mechanism of varenicline against DENV, offering valuable insights for further research and development in the treatment of DENV infection.
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Affiliation(s)
- Ching-Lin Lin
- Institute of Biochemistry, College of Life Sciences, National Chung Hsing University, Taichung 40227, Taiwan; (C.-L.L.); (J.-Y.K.)
| | - Yan-Tung Kiu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 404328, Taiwan; (Y.-T.K.); (J.-Y.K.); (P.-Y.H.)
| | - Ju-Ying Kan
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 404328, Taiwan; (Y.-T.K.); (J.-Y.K.); (P.-Y.H.)
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung 404328, Taiwan;
| | - Yu-Jen Chang
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung 404328, Taiwan;
| | - Ping-Yi Hung
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 404328, Taiwan; (Y.-T.K.); (J.-Y.K.); (P.-Y.H.)
| | - Chih-Hao Lu
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu City 30010, Taiwan;
| | - Wen-Ling Lin
- Department of Pharmacy, China Medical University Hospital, Taichung 404328, Taiwan; (W.-L.L.); (Y.-W.H.)
- School of Pharmacy, China Medical University, Taichung 404328, Taiwan
| | - Yow-Wen Hsieh
- Department of Pharmacy, China Medical University Hospital, Taichung 404328, Taiwan; (W.-L.L.); (Y.-W.H.)
- School of Pharmacy, China Medical University, Taichung 404328, Taiwan
| | - Jung-Yie Kao
- Institute of Biochemistry, College of Life Sciences, National Chung Hsing University, Taichung 40227, Taiwan; (C.-L.L.); (J.-Y.K.)
| | - Nien-Jen Hu
- Institute of Biochemistry, College of Life Sciences, National Chung Hsing University, Taichung 40227, Taiwan; (C.-L.L.); (J.-Y.K.)
| | - Cheng-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 404328, Taiwan; (Y.-T.K.); (J.-Y.K.); (P.-Y.H.)
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung 404328, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung 41354, Taiwan
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11
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Lindson N, Theodoulou A, Ordóñez-Mena JM, Fanshawe TR, Sutton AJ, Livingstone-Banks J, Hajizadeh A, Zhu S, Aveyard P, Freeman SC, Agrawal S, Hartmann-Boyce J. Pharmacological and electronic cigarette interventions for smoking cessation in adults: component network meta-analyses. Cochrane Database Syst Rev 2023; 9:CD015226. [PMID: 37696529 PMCID: PMC10495240 DOI: 10.1002/14651858.cd015226.pub2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
BACKGROUND Tobacco smoking is the leading preventable cause of death and disease worldwide. Stopping smoking can reduce this harm and many people would like to stop. There are a number of medicines licenced to help people quit globally, and e-cigarettes are used for this purpose in many countries. Typically treatments work by reducing cravings to smoke, thus aiding initial abstinence and preventing relapse. More information on comparative effects of these treatments is needed to inform treatment decisions and policies. OBJECTIVES To investigate the comparative benefits, harms and tolerability of different smoking cessation pharmacotherapies and e-cigarettes, when used to help people stop smoking tobacco. SEARCH METHODS We identified studies from recent updates of Cochrane Reviews investigating our interventions of interest. We updated the searches for each review using the Cochrane Tobacco Addiction Group (TAG) specialised register to 29 April 2022. SELECTION CRITERIA We included randomised controlled trials (RCTs), cluster-RCTs and factorial RCTs, which measured smoking cessation at six months or longer, recruited adults who smoked combustible cigarettes at enrolment (excluding pregnant people) and randomised them to approved pharmacotherapies and technologies used for smoking cessation worldwide (varenicline, cytisine, nortriptyline, bupropion, nicotine replacement therapy (NRT) and e-cigarettes) versus no pharmacological intervention, placebo (control) or another approved pharmacotherapy. Studies providing co-interventions (e.g. behavioural support) were eligible if the co-intervention was provided equally to study arms. DATA COLLECTION AND ANALYSIS We followed standard Cochrane methods for screening, data extraction and risk of bias (RoB) assessment (using the RoB 1 tool). Primary outcome measures were smoking cessation at six months or longer, and the number of people reporting serious adverse events (SAEs). We also measured withdrawals due to treatment. We used Bayesian component network meta-analyses (cNMA) to examine intervention type, delivery mode, dose, duration, timing in relation to quit day and tapering of nicotine dose, using odds ratios (OR) and 95% credibility intervals (CrIs). We calculated an effect estimate for combination NRT using an additive model. We evaluated the influence of population and study characteristics, provision of behavioural support and control arm rates using meta-regression. We evaluated certainty using GRADE. MAIN RESULTS Of our 332 eligible RCTs, 319 (835 study arms, 157,179 participants) provided sufficient data to be included in our cNMA. Of these, we judged 51 to be at low risk of bias overall, 104 at high risk and 164 at unclear risk, and 118 reported pharmaceutical or e-cigarette/tobacco industry funding. Removing studies at high risk of bias did not change our interpretation of the results. Benefits We found high-certainty evidence that nicotine e-cigarettes (OR 2.37, 95% CrI 1.73 to 3.24; 16 RCTs, 3828 participants), varenicline (OR 2.33, 95% CrI 2.02 to 2.68; 67 RCTs, 16,430 participants) and cytisine (OR 2.21, 95% CrI 1.66 to 2.97; 7 RCTs, 3848 participants) were associated with higher quit rates than control. In absolute terms, this might lead to an additional eight (95% CrI 4 to 13), eight (95% CrI 6 to 10) and seven additional quitters per 100 (95% CrI 4 to 12), respectively. These interventions appeared to be more effective than the other interventions apart from combination NRT (patch and a fast-acting form of NRT), which had a lower point estimate (calculated additive effect) but overlapping 95% CrIs (OR 1.93, 95% CrI 1.61 to 2.34). There was also high-certainty evidence that nicotine patch alone (OR 1.37, 95% CrI 1.20 to 1.56; 105 RCTs, 37,319 participants), fast-acting NRT alone (OR 1.41, 95% CrI 1.29 to 1.55; 120 RCTs, 31,756 participants) and bupropion (OR 1.43, 95% CrI 1.26 to 1.62; 71 RCTs, 14,759 participants) were more effective than control, resulting in two (95% CrI 1 to 3), three (95% CrI 2 to 3) and three (95% CrI 2 to 4) additional quitters per 100 respectively. Nortriptyline is probably associated with higher quit rates than control (OR 1.35, 95% CrI 1.02 to 1.81; 10 RCTs, 1290 participants; moderate-certainty evidence), resulting in two (CrI 0 to 5) additional quitters per 100. Non-nicotine/placebo e-cigarettes (OR 1.16, 95% CrI 0.74 to 1.80; 8 RCTs, 1094 participants; low-certainty evidence), equating to one additional quitter (95% CrI -2 to 5), had point estimates favouring the intervention over control, but CrIs encompassed the potential for no difference and harm. There was low-certainty evidence that tapering the dose of NRT prior to stopping treatment may improve effectiveness; however, 95% CrIs also incorporated the null (OR 1.14, 95% CrI 1.00 to 1.29; 111 RCTs, 33,156 participants). This might lead to an additional one quitter per 100 (95% CrI 0 to 2). Harms There were insufficient data to include nortriptyline and non-nicotine EC in the final SAE model. Overall rates of SAEs for the remaining treatments were low (average 3%). Low-certainty evidence did not show a clear difference in the number of people reporting SAEs for nicotine e-cigarettes, varenicline, cytisine or NRT when compared to no pharmacotherapy/e-cigarettes or placebo. Bupropion may slightly increase rates of SAEs, although the CrI also incorporated no difference (moderate certainty). In absolute terms bupropion may cause one more person in 100 to experience an SAE (95% CrI 0 to 2). AUTHORS' CONCLUSIONS The most effective interventions were nicotine e-cigarettes, varenicline and cytisine (all high certainty), as well as combination NRT (additive effect, certainty not rated). There was also high-certainty evidence for the effectiveness of nicotine patch, fast-acting NRT and bupropion. Less certain evidence of benefit was present for nortriptyline (moderate certainty), non-nicotine e-cigarettes and tapering of nicotine dose (both low certainty). There was moderate-certainty evidence that bupropion may slightly increase the frequency of SAEs, although there was also the possibility of no increased risk. There was no clear evidence that any other tested interventions increased SAEs. Overall, SAE data were sparse with very low numbers of SAEs, and so further evidence may change our interpretation and certainty. Future studies should report SAEs to strengthen certainty in this outcome. More head-to-head comparisons of the most effective interventions are needed, as are tests of combinations of these. Future work should unify data from behavioural and pharmacological interventions to inform approaches to combined support for smoking cessation.
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Affiliation(s)
- Nicola Lindson
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Annika Theodoulou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - José M Ordóñez-Mena
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Thomas R Fanshawe
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Alex J Sutton
- Department of Health Sciences, University of Leicester, Leicester, UK
| | | | - Anisa Hajizadeh
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Sufen Zhu
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Suzanne C Freeman
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Sanjay Agrawal
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Jamie Hartmann-Boyce
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
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12
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Hitsman B, Papandonatos GD, Gollan JK, Huffman MD, Niaura R, Mohr DC, Veluz-Wilkins AK, Lubitz SF, Hole A, Leone FT, Khan SS, Fox EN, Bauer AM, Wileyto EP, Bastian J, Schnoll RA. Efficacy and safety of combination behavioral activation for smoking cessation and varenicline for treating tobacco dependence among individuals with current or past major depressive disorder: A 2 × 2 factorial, randomized, placebo-controlled trial. Addiction 2023; 118:1710-1725. [PMID: 37069490 DOI: 10.1111/add.16209] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 03/28/2023] [Indexed: 04/19/2023]
Abstract
BACKGROUND AND AIMS Treatment of depression-related psychological factors related to smoking behavior may improve rates of cessation among adults with major depressive disorder (MDD). This study measured the efficacy and safety of 12 weeks of behavioral activation for smoking cessation (BASC), varenicline and their combination. DESIGN, SETTING, PARTICIPANTS This study used a randomized, placebo-controlled, 2 × 2 factorial design comparing BASC versus standard behavioral treatment (ST) and varenicline versus placebo, taking place in research clinics at two urban universities in the United States. Participants comprised 300 hundred adult smokers with current or past MDD. INTERVENTIONS BASC integrated behavioral activation therapy and ST to increase engagement in rewarding activities by reducing avoidance, withdrawal and inactivity associated with depression. ST was based on the 2008 PHS Clinical Practice Guideline. Both treatments consisted of eight 45-min sessions delivered between weeks 1 and 12. Varenicline and placebo were administered for 12 weeks between weeks 2 and 14. MEASUREMENTS Primary outcomes were bioverified intent-to-treat (ITT) 7-day point-prevalence abstinence at 27 weeks and adverse events (AEs). FINDINGS No significant interaction was detected between behavioral treatment and pharmacotherapy at 27 weeks (χ2 (1) = 0.19, P = 0.67). BASC and ST did not differ (χ2 (1) = 0.43, P = 0.51). Significant differences in ITT abstinence rates (χ2 (1) = 4.84, P = 0.03) emerged among pharmacotherapy arms (16.2% for varenicline, 7.5% for placebo), with results favoring varenicline over placebo (rate ratio = 2.16, 95% confidence interval = 1.08, 4.30). All significant differences in AE rates after start of medication were higher for placebo than varenicline. CONCLUSION A randomized trial in smokers with major depressive disorder found that varenicline improved smoking abstinence versus placebo at 27 weeks without elevating rates of adverse events. Behavioral activation for smoking cessation did not outperform standard behavioral treatment, with or without adjunctive varenicline therapy.
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Affiliation(s)
- Brian Hitsman
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University, United States
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, United States
| | - George D Papandonatos
- Department of Biostatistics and Center for Statistical Sciences, Brown University School of Public Health, Providence, Rhode Island, United States
| | - Jacqueline K Gollan
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, United States
- Asher Center for the Study and Treatment of Depressive Disorders, Chicago, Illinois, United States
| | - Mark D Huffman
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
- John T. Milliken Department of Medicine, Washington University School of Medicine, Washington University in St. Louis, St. Louis, Missouri, United States
- Cardiovascular Program, The George Institute for Global Health, University of South Wales, Newtown, New South Wales, Australia
| | - Raymond Niaura
- Department of Epidemiology, School of Global Public Health, New York University, New York, New York, United States
| | - David C Mohr
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University, United States
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, United States
| | - Anna K Veluz-Wilkins
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Su Fen Lubitz
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States
| | - Anita Hole
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States
| | - Frank T Leone
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Perelman Center for Advanced Medicine, Philadelphia, Pennsylvania, United States
| | - Sadiya S Khan
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Erica N Fox
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Anna-Marika Bauer
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States
| | - E Paul Wileyto
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States
| | - Joseph Bastian
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States
| | - Robert A Schnoll
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States
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13
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Raghunathan R, Gutierrez J, Liu CH, Singh M, Miranda RC, Larin KV. Assessing the effects of prenatal poly-drug exposure on fetal brain vasculature using optical coherence angiography. J Biomed Opt 2023; 28:076002. [PMID: 37469831 PMCID: PMC10353480 DOI: 10.1117/1.jbo.28.7.076002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 07/21/2023]
Abstract
Significance Maternal exposure to drugs during pregnancy is known to have detrimental effects on the fetus. Alcohol (ethanol) and nicotine are two of the most commonly co-abused substances during pregnancy, and prenatal poly-drug exposure is common due, in part, to the prevalence of unplanned pregnancies. The second trimester is a critical period for fetal neurogenesis and angiogenesis. When drug exposure occurs during this time, fetal brain development is affected. Several behavioral, morphological, and functional studies have evaluated the changes in fetal brain development due to exposure to these drugs individually. However, research on the combined effects of ethanol and nicotine is far more limited, specifically on fetal vasculature changes and development. Aim We use correlation mapping optical coherence angiography (cm-OCA) to evaluate acute changes in fetal brain vasculature caused by maternal exposure to a combination of ethanol and nicotine. Approach Ethanol (16.6% v/v, at a dose of 0.75g/kg) and nicotine (at a dose of 0.1 mg/kg) were administered to pregnant mice after initial cm-OCA measurements in utero. Subsequent measurements were taken at 5-min intervals for a total period of 45 min. Results from these experiments were compared to results from our previous studies in which the mother was exposed to only ethanol (dose: 0.75 g/kg) or nicotine (dose: 0.1 mg/kg). Results While results from exposure to ethanol or nicotine independently showed vasoconstriction, no significant change in vasculature was observed with combined exposure. Conclusion Results suggested antagonistic effects of ethanol and nicotine on fetal brain vasculature.
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Affiliation(s)
- Raksha Raghunathan
- University of Houston, Department of Biomedical Engineering, Houston, Texas, United States
- Weill Cornell Medicine, Houston Methodist Cancer Center, Department of Systems Medicine and Bioengineering, Houston, Texas, United States
| | - Jessica Gutierrez
- University of Houston, Department of Biomedical Engineering, Houston, Texas, United States
| | - Chih-Hao Liu
- University of Houston, Department of Biomedical Engineering, Houston, Texas, United States
| | - Manmohan Singh
- University of Houston, Department of Biomedical Engineering, Houston, Texas, United States
| | - Rajesh C. Miranda
- TAMHSC College of Medicine, Department of Neuroscience and Experimental Therapeutics, Bryan, Texas, United States
| | - Kirill V. Larin
- University of Houston, Department of Biomedical Engineering, Houston, Texas, United States
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Moiz A, Eisenberg MJ. Initiation of Varenicline in People Hospitalized for Acute Coronary Syndrome Who Smoke. Circulation 2023; 147:1869-1871. [PMID: 37335826 DOI: 10.1161/circulationaha.123.064257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Affiliation(s)
- Areesha Moiz
- From the Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada (A.M., M.J.E.)
| | - Mark J Eisenberg
- From the Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada (A.M., M.J.E.)
- Faculty of Medicine and Health Sciences, Departments of Epidemiology, Biostatistics and Occupational Health, and Division of Cardiology, Jewish General Hospital, McGill University, Montreal, QC, Canada (M.J.E.)
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15
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Asfar T, Livingstone-Banks J, Ward KD, Eissenberg T, Oluwole O, Bursac Z, Ghaddar T, Maziak W. Interventions for waterpipe smoking cessation. Cochrane Database Syst Rev 2023; 6:CD005549. [PMID: 37286509 PMCID: PMC10245833 DOI: 10.1002/14651858.cd005549.pub4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND While cigarette smoking has declined globally, waterpipe smoking is rising, especially among youth. The impact of this rise is amplified by mounting evidence of its addictive and harmful nature. Waterpipe smoking is influenced by multiple factors, including appealing flavors, marketing, use in social settings, and misperceptions that waterpipe is less harmful or addictive than cigarettes. People who use waterpipes are interested in quitting, but are often unsuccessful at doing so on their own. Therefore, developing and testing waterpipe cessation interventions to help people quit was identified as a priority for global tobacco control efforts. OBJECTIVES: To evaluate the effectiveness of tobacco cessation interventions for people who smoke waterpipes. SEARCH METHODS We searched the Cochrane Tobacco Addiction Review Group Specialized Register from database inception to 29 July 2022, using variant terms and spellings ('waterpipe' or 'narghile' or 'arghile' or 'shisha' or 'goza' or 'narkeela' or 'hookah' or 'hubble bubble'). We searched for trials, published or unpublished, in any language. SELECTION CRITERIA We sought randomized controlled trials (RCTs), quasi-RCTs, or cluster-RCTs of any smoking cessation interventions for people who use waterpipes, of any age or gender. In order to be included, studies had to measure waterpipe abstinence at a three-month follow-up or longer. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Our primary outcome was abstinence from waterpipe use at least three months after baseline. We also collected data on adverse events. Individual study effects and pooled effects were summarized as risk ratios (RR) and 95% confidence intervals (95% CI), using Mantel-Haenszel random-effects models to combine studies, where appropriate. We assessed statistical heterogeneity with the I2 statistic. We summarized secondary outcomes narratively. We used the five GRADE considerations (risk of bias, inconsistency of effect, imprecision, indirectness, and publication bias) to assess the certainty of the body of evidence for our primary outcome in four categories high, moderate, low, or very low. MAIN RESULTS This review included nine studies, involving 2841 participants. All studies were conducted in adults, and were carried out in Iran, Vietnam, Syria, Lebanon, Egypt, Pakistan, and the USA. Studies were conducted in several settings, including colleges/universities, community healthcare centers, tuberculosis hospitals, and cancer treatment centers, while two studies tested e-health interventions (online web-based educational intervention, text message intervention). Overall, we judged three studies to be at low risk of bias, and six studies at high risk of bias. We pooled data from five studies (1030 participants) that tested intensive face-to-face behavioral interventions compared with brief behavioral intervention (e.g. one behavioral counseling session), usual care (e.g. self-help materials), or no intervention. In our meta-analysis, we included people who used waterpipe exclusively, or with another form of tobacco. Overall, we found low-certainty evidence of a benefit of behavioral support for waterpipe abstinence (RR 3.19 95% CI 2.17 to 4.69; I2 = 41%; 5 studies, N = 1030). We downgraded the evidence because of imprecision and risk of bias. We pooled data from two studies (N = 662 participants) that tested varenicline combined with behavioral intervention compared with placebo combined with behavioral intervention. Although the point estimate favored varenicline, 95% CIs were imprecise, and incorporated the potential for no difference and lower quit rates in the varenicline groups, as well as a benefit as large as that found in cigarette smoking cessation (RR 1.24, 95% CI 0.69 to 2.24; I2 = 0%; 2 studies, N = 662; low-certainty evidence). We downgraded the evidence because of imprecision. We found no clear evidence of a difference in the number of participants experiencing adverse events (RR 0.98, 95% CI 0.67 to 1.44; I2 = 31%; 2 studies, N = 662). The studies did not report serious adverse events. One study tested the efficacy of seven weeks of bupropion therapy combined with behavioral intervention. There was no clear evidence of benefit for waterpipe cessation when compared with behavioral support alone (RR 0.77, 95% CI 0.42 to 1.41; 1 study, N = 121; very low-certainty evidence), or with self-help (RR 1.94, 95% CI 0.94 to 4.00; 1 study, N = 86; very low-certainty evidence). Two studies tested e-health interventions. One study reported higher waterpipe quit rates among participants randomized to either a tailored mobile phone or untailored mobile phone intervention compared with those randomized to no intervention (RR 1.48, 95% CI 1.07 to 2.05; 2 studies, N = 319; very low-certainty evidence). Another study reported higher waterpipe abstinence rates following an intensive online educational intervention compared with a brief online educational intervention (RR 1.86, 95% CI 1.08 to 3.21; 1 study, N = 70; very low-certainty evidence). AUTHORS' CONCLUSIONS: We found low-certainty evidence that behavioral waterpipe cessation interventions can increase waterpipe quit rates among waterpipe smokers. We found insufficient evidence to assess whether varenicline or bupropion increased waterpipe abstinence; available evidence is compatible with effect sizes similar to those seen for cigarette smoking cessation. Given e-health interventions' potential reach and effectiveness for waterpipe cessation, trials with large samples and long follow-up periods are needed. Future studies should use biochemical validation of abstinence to prevent the risk of detection bias. Finally, there has been limited attention given to high-risk groups for waterpipe smoking, such as youth, young adults, pregnant women, and dual or poly tobacco users. These groups would benefit from targeted studies.
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Affiliation(s)
- Taghrid Asfar
- Syrian Center for Tobacco Studies, Aleppo, Syrian Arab Republic
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida, USA
| | | | - Kenneth D Ward
- Syrian Center for Tobacco Studies, Aleppo, Syrian Arab Republic
- School of Public Health, University of Memphis, Memphis, Tennessee, USA
| | - Thomas Eissenberg
- Syrian Center for Tobacco Studies, Aleppo, Syrian Arab Republic
- Department of Psychology and Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Olusanya Oluwole
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Zoran Bursac
- Biostatistics, Florida International University, Miami, FL, USA
| | - Tarek Ghaddar
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Wasim Maziak
- Department of Epidemiology, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, Florida, USA
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Ghimire M, Cai R, Ling L, Brownell KA, Wisner KW, Cox BC, Hackett TA, Brozoski TJ, Caspary DM. Desensitizing nicotinic agents normalize tinnitus-related inhibitory dysfunction in the auditory cortex and ameliorate behavioral evidence of tinnitus. Front Neurosci 2023; 17:1197909. [PMID: 37304018 PMCID: PMC10248052 DOI: 10.3389/fnins.2023.1197909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/25/2023] [Indexed: 06/13/2023] Open
Abstract
Tinnitus impacts between 10-20% of the population. Individuals most troubled by their tinnitus have their attention bound to and are distracted by, their tinnitus percept. While numerous treatments to ameliorate tinnitus have been tried, no therapeutic approach has been clinically accepted. The present study used an established condition-suppression noise-exposure rat model of tinnitus to: (1) examine tinnitus-related changes in nAChR function of layer 5 pyramidal (PNs) and of vasoactive intestinal peptide (VIP) neurons in primary auditory cortex (A1) and (2) examine how the partial desensitizing nAChR agonists, sazetidine-A and varenicline, can act as potential therapeutic agents in the treatment of tinnitus. We posited that tinnitus-related changes in layer 5 nAChR responses may underpin the decline in attentional resources previously observed in this animal model (Brozoski et al., 2019). In vitro whole-cell patch-clamp studies previously revealed a significant tinnitus-related loss in nAChR-evoked excitatory postsynaptic currents from A1 layer 5 PNs. In contrast, VIP neurons from animals with behavioral evidence of tinnitus showed significantly increased nAChR-evoked excitability. Here we hypothesize that sazetidine-A and varenicline have therapeutic benefits for subjects who cannot divert their attention away from the phantom sound in their heads. We found that sazetidine-A or varenicline normalized tinnitus-related reductions in GABAergic input currents onto A1 layer 5 PNs. We then tested sazetidine-A and varenicline for the management of tinnitus using our tinnitus animal model. Subcutaneous injection of sazetidine-A or varenicline, 1 h prior to tinnitus testing, significantly decreased the rat's behavioral evidence of tinnitus in a dose-dependent manner. Collectively, these results support the need for additional clinical investigations of partial desensitizing nAChR agonists sazetidine-A and varenicline for the treatment of tinnitus.
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Affiliation(s)
- Madan Ghimire
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Rui Cai
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Lynne Ling
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Kevin A. Brownell
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Kurt W. Wisner
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Brandon C. Cox
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Troy A. Hackett
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Thomas J. Brozoski
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Donald M. Caspary
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
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17
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Deng M, Yang Z, Ni Y, Zhu L, Xu J, Zheng L, Zhou B. Effects of varenicline on the serum levels of olanzapine in male patients with Schizophrenia: a randomized controlled trial. Front Psychiatry 2023; 14:1142419. [PMID: 37275966 PMCID: PMC10235537 DOI: 10.3389/fpsyt.2023.1142419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/09/2023] [Indexed: 06/07/2023] Open
Abstract
Background Smoking in patients with Schizophrenia is more common than in the general population. Varenicline, a partial agonist at α4β2 nicotinic acetylcholine receptors, is an effective smoking cessation pharmacotherapy in patients with Schizophrenia. However, its effects on the serum levels of antipsychotics in Schizophrenia are understudied. This study investigated the impact of smoking cessation with varenicline on the serum concentration of olanzapine in patients with Schizophrenia. Methods Adult smokers with Schizophrenia were enrolled in a 12-week course of varenicline and placebo for smoking cessation. The serum concentration of olanzapine was measured at baseline and weeks 1, 2, 4, 8, and 12. Data were analyzed with the generalized additive mixed model. Results During the 12-week study, the results indicated that olanzapine concentrations increased nonlinearly in the varenicline and placebo groups. Threshold effect analysis suggested that the olanzapine concentrations increased over time until the turning point (week 4). However, there was no significant difference between the two treatment groups. Conclusion Varenicline showed safety and efficacy in smoking cessation in people with Schizophrenia.
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Affiliation(s)
- Mengling Deng
- Department of Clinical Psychology, The Third Hospital of Quzhou, Quzhou, China
- Department of Psychiatry, The Third Hospital of Quzhou, Quzhou, China
| | - Zhi Yang
- Department of Clinical Psychology, The Third Hospital of Quzhou, Quzhou, China
| | - Yanfei Ni
- Department of Psychiatry, The Third Hospital of Quzhou, Quzhou, China
| | - Lingli Zhu
- Department of Clinical Psychology, The Third Hospital of Quzhou, Quzhou, China
| | - Jiating Xu
- Department of Psychiatry, The Third Hospital of Quzhou, Quzhou, China
| | - Lifeng Zheng
- Department of Clinical Psychology, The Third Hospital of Quzhou, Quzhou, China
| | - Bo Zhou
- Department of Psychiatry, The Third Hospital of Quzhou, Quzhou, China
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18
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Patel AR, Panchal JR, Desai CK. Efficacy of varenicline versus bupropion for smoking cessation: A systematic review and meta-analysis of randomized controlled trials. Indian J Psychiatry 2023; 65:526-533. [PMID: 37397838 PMCID: PMC10309263 DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_218_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/11/2022] [Accepted: 03/04/2023] [Indexed: 07/04/2023] Open
Abstract
According to the Global Burden of Disease (GBD) Study conducted in 2019, smoking tobacco leads to over 8 million deaths each year. Hence, it is crucial to identify optimal smoking cessation therapy. To compare the efficacy of varenicline versus bupropion for smoking cessation by performing a meta-analysis of randomized controlled trials (RCTs). Protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO). The Patient intervention comparison outcome time (PICOT) format is used in the study. Patients having nicotine use disorder treated with varenicline or bupropion were included, and the continuous abstinence rate (CAR) was assessed at 12, 24, and 52 weeks. The PubMed and Google Scholar databases were systematically searched, and after the screening, RCTs involving a comparison of varenicline and bupropion in smoking cessation were included. We performed a meta-analysis of three RCTs (10110 patients) by RevMan 5.4.1 statistical software to determine the efficacy of varenicline compared with bupropion in smoking cessation. The CAR at 9- to 12-week follow-up of varenicline is superior to bupropion (OR = 1.79, CI range: 1.59-2.02, P < 0.001). Similarly, the CAR of varenicline is superior to bupropion for weeks 9-24 (1.51, 1.32 to 1.72) and weeks 9-52 (1.60, 1.22 to 2.12), suggesting the absolute advantage of varenicline over bupropion for smoking cessation in terms of efficacy. Both varenicline and bupropion are efficacious therapies for smoking cessation. Compared with bupropion, varenicline can significantly improve the CAR at the end of treatment, at 24 weeks, and at 52 weeks of follow-up.
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Affiliation(s)
- Ashish R. Patel
- Department of Pharmacology, BJ Medical College and Civil Hospital, Ahmedabad, Gujarat, India
| | - Jigar R. Panchal
- Department of Pharmacology, BJ Medical College and Civil Hospital, Ahmedabad, Gujarat, India
| | - Chetna K. Desai
- Department of Pharmacology, BJ Medical College and Civil Hospital, Ahmedabad, Gujarat, India
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19
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Karamian BA, Levy HA, Yalla GR, D'Antonio ND, Heard JC, Lambrechts MJ, Canseco JA, Vaccaro AR, Markova DZ, Kepler CK. Varenicline Mitigates the Increased Risk of Pseudoarthrosis Associated with Nicotine. Spine J 2023:S1529-9430(23)00162-6. [PMID: 37086977 DOI: 10.1016/j.spinee.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/06/2023] [Accepted: 04/11/2023] [Indexed: 04/24/2023]
Abstract
BACKGROUND CONTEXT High serum nicotine levels increase the risk of non-union after spinal fusion. Varenicline, a pharmaceutical adjunct for smoking cessation, is a partial agonist designed to displace and outcompete nicotine at its receptor binding site, thereby limiting downstream activation. Given its mechanism, varenicline may have therapeutic benefits in mitigating non-union for active smokers undergoing spinal fusion. PURPOSE To compare fusion rate and fusion mass characteristics between cohorts receiving nicotine, varenicline, or concurrent nicotine and varenicline after lumbar fusion. STUDY DESIGN Rodent non-instrumented spinal fusion model. METHODS Sixty eight-week-old male Sprague-Dawley rats weighing approximately 300 grams underwent L4-5 posterolateral fusion (PLF) surgery. Four experimental groups (control: C, nicotine: N, varenicline: V, and combined: NV [nicotine and varenicline]) were included for analysis. Treatment groups received nicotine, varenicline, or a combination of nicotine and varenicline delivered through subcutaneous osmotic pumps beginning two weeks before surgery until the time of sacrifice at age 14 weeks. Manual palpation testing, microCT imaging, bone histomorphometry, and biomechanical testing were performed on harvested spinal fusion segments. RESULTS Control (p=0.016) and combined (p=0.032) groups, when compared directly to the nicotine group, demonstrated significantly greater manual palpation scores. The fusion rate in the control (93.3%) and combined (93.3%) groups were significantly greater than that of the nicotine group (33.3%) (p=0.007, both). Biomechanical testing demonstrated greater Young's modulus of the fusion segment in the control (17.1 MPa) and combined groups (34.5 MPa) compared to the nicotine group (8.07 MPa) (p<0.001, both). MicroCT analysis demonstrated greater bone volume fraction (C:0.35 vs N:0.26 vs NV:0.33) (p<0.001, all) and bone mineral density (C:335 vs N:262 vs NV:328 mg Ha/cm3) (p<0.001, all) in the control and combined groups compared to the nicotine group. Histomorphometry demonstrated a greater mineral apposition rate in the combined group compared to the nicotine group (0.34 vs 0.24 μm/day, p=0.025). CONCLUSION In a rodent spinal fusion model, varenicline mitigates the adverse effects of high nicotine serum levels on the rate and quality of spinal fusion. CLINICAL SIGNIFICANCE These findings have the potential to significantly impact clinical practice guidelines and the use of pharmacotherapy for active nicotine users undergoing fusion surgery.
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Affiliation(s)
- Brian A Karamian
- Rothman Orthopaedic Institute, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA; Department of Orthopaedic Surgery, University of Utah, Salt Lake City, UT, USA.
| | - Hannah A Levy
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Goutham R Yalla
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Nicholas D D'Antonio
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jeremy C Heard
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Mark J Lambrechts
- Rothman Orthopaedic Institute, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jose A Canseco
- Rothman Orthopaedic Institute, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Alexander R Vaccaro
- Rothman Orthopaedic Institute, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Dessislava Z Markova
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Christopher K Kepler
- Rothman Orthopaedic Institute, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA
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20
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Lobbe C, Bahnisch J, Lin C, Demirkol A, Murnion B. How do patients and staff in an opioid agonist treatment service view smoking cessation medications and e-cigarettes? Drug Alcohol Rev 2023. [PMID: 36877583 DOI: 10.1111/dar.13630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 03/07/2023]
Abstract
INTRODUCTION Tobacco use and related mortality is common in people receiving opioid agonist treatment (OAT). Smoking cessation medications are available and e-cigarettes are increasingly recommended for high risk populations. This study explores experience, knowledge and attitudes around smoking cessation medications (nicotine replacement therapy [NRT], bupropion and varenicline) and e-cigarettes in patients and clinicians in two public Australian OAT clinics. METHODS Cross-sectional surveys of patients and clinicians and a randomly sampled retrospective medical record review. Patients were recruited through an advertisement in the clinic, and clinicians through advertisement at an educational session. RESULTS Ninety-one patients and 10 clinicians completed the surveys. Most patients had at least one quit attempt and 43% were currently trying to quit. There were high levels of exposure to NRT, lower levels with varenicline and very limited exposure to bupropion. Patients considered e-cigarettes most helpful, but were more likely to consider using NRT. Few patients reported smoking cessation interventions from their clinicians. Most clinicians identified high tobacco use prevalence, considered this problematic, but reported low rates of smoking cessation intervention. NRT was the preferred medication. E-cigarettes were not considered helpful. Sixty-six percent of the 140 records reviewed documented patients as smokers. Tobacco cessation medication was rarely discussed or provided. DISCUSSION AND CONCLUSIONS Patients report high rates of tobacco cessation planning, but low rates of intervention. Experience of varenicline and bupropion is limited. E-cigarettes were preferred over varenicline and bupropion. Improving patient's and clinician's knowledge of tobacco cessation medications could improve smoking cessation interventions and uptake of approved medications.
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Affiliation(s)
- Catherine Lobbe
- Faculty of Medicine and Health, University of New England, Armidale, Australia.,School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia
| | - Jade Bahnisch
- Faculty of Medicine and Health, University of New England, Armidale, Australia.,School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia
| | - Chenxi Lin
- Faculty of Medicine and Health, University of New England, Armidale, Australia.,School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia
| | - Apo Demirkol
- Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia
| | - Bridin Murnion
- School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia.,Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia.,Faculty of Medicine and Public Health, The University of Sydney, Sydney, Australia
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21
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Wexler Y, Ghiringhelli M, Shaheen N, Glatstein S, Huber I, Edri O, Abboud Y, Landesberg M, Shiff D, Arbel G, Gepstein L. Chemogenetics for Gene Therapy Based Targeted Cardiac Electrophysiological Modulation. Circ Res 2023; 132:645-647. [PMID: 36744466 DOI: 10.1161/circresaha.122.322041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yehuda Wexler
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Matteo Ghiringhelli
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Naim Shaheen
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Shany Glatstein
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Irit Huber
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Oded Edri
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Yousef Abboud
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Michal Landesberg
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Daniel Shiff
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Gil Arbel
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.)
| | - Lior Gepstein
- Sohnis Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine, the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel (Y.W., M.G., N.S., S.G., I.H., O.E., Y.A., M.L., D.S., G.A., L.G.).,Cardiology Department, Rambam Health Care Campus, Haifa, Israel (L.G.)
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22
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Phimarn W, Sakhancord R, Paitoon P, Saramunee K, Sungthong B. Efficacy of Varenicline in the Treatment of Alcohol Dependence: An Updated Meta-Analysis and Meta-Regression. Int J Environ Res Public Health 2023; 20:4091. [PMID: 36901103 PMCID: PMC10001935 DOI: 10.3390/ijerph20054091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/19/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Although varenicline has been used for alcohol dependence (AD) treatment, its efficacy for this condition remains controversial. AIMS This systematic review and meta-analysis of randomized controlled trials (RCTs) assesses the efficacy and safety of varenicline in patients with AD. METHODS PubMed, Cochrane Library, ScienceDirect, Web of Science, and ThaiLis were systematically searched. RCTs investigating the efficacy and safety of varenicline in patients with AD were included. Study selection, data extraction, and quality assessment were independently performed by two authors. The Jadad score and Cochrane risk of bias were used to assess the quality of the included studies. Heterogeneity was assessed using I2 and chi-squared tests. RESULTS Twenty-two high-quality RCTs on 1421 participants were included. Varenicline significantly reduced alcohol-related outcomes compared with placebo based on percentage of abstinent days (standardized mean difference [SMD] 4.20 days; 95% confidence interval [CI]: 0.21, 8.19; p = 0.04), drinks per day (SMD -0.23 drinks; 95% CI: -0.43, -0.04; p = 0.02), drinks per drinking day (SMD -0.24 drinks; 95% CI: -0.44, -0.05; p = 0.01), craving assessed using the Penn alcohol craving scale (SMD -0.35; 95% CI: -0.59, -0.12; p = 0.003), and craving assessed using the alcohol urge questionnaire (SMD -1.41; 95% CI: -2.12, -0.71; p < 0.0001). However, there were no significant effects on abstinence rate, percentage of drinking days, percentage of heavy drinking days, alcohol intoxication, or drug compliance. Serious side effects were not observed in the varenicline or placebo groups. CONCLUSION Our results indicated that AD patients treated with varenicline showed improvement in percentage of very heavy drinking days, percentage of abstinent days, drinks per day, drinks per drinking day, and craving. However, well-designed RCTs with a large sample size and long duration on varenicline treatment in AD remain warranted to confirm our findings.
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Affiliation(s)
- Wiraphol Phimarn
- Social Pharmacy Research Unit, Faculty of Pharmacy, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
| | - Rotjanawat Sakhancord
- Social Pharmacy Research Unit, Faculty of Pharmacy, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
| | - Peerasaran Paitoon
- Social Pharmacy Research Unit, Faculty of Pharmacy, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
| | - Kritsanee Saramunee
- Social Pharmacy Research Unit, Faculty of Pharmacy, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
| | - Bunleu Sungthong
- Integrative Pharmaceuticals and Innovative of Pharmaceutical Technology Research Unit, Faculty of Pharmacy, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
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23
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Pajai DD, Paul P, Reche A. Pharmacotherapy in Tobacco Cessation: A Narrative Review. Cureus 2023; 15:e35086. [PMID: 36938244 PMCID: PMC10023046 DOI: 10.7759/cureus.35086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
A chronic, recurring illness, known as nicotine addiction and dependence, is defined by a person's dependence on the substance up to the extent that their normal day-to-day activities are compromised in the absence of the substance. This paper will highlight first-line smoking cessation treatments, such as nicotine replacement therapy (NRT), bupropion, and varenicline, and second-line medications, such as clonidine, nortriptyline, anxiolytics, mecamylamine, naltrexone, and NicVAX (Nabi Biopharmaceuticals, Rockville, MD, USA). NRT offers many options for nicotine delivery methods, comprising nicotine gum, rapid-release gum, lozenges, transdermal patches, high-dose nicotine patches, oral inhalers, nasal sprays, electronic nicotine delivery systems (ENDS), and sublingual tablets. Pharmacotherapies for quitting tobacco should lessen withdrawal symptoms and stop nicotine's reinforcing effects without having too many side effects.
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Affiliation(s)
- Devanjali D Pajai
- Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Priyanka Paul
- Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Amit Reche
- Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Bernat P, Kołodziejczyk P, Łuszczki JJ, Zagaja M, Tutka P. Interaction of Varenicline with Classic Antiseizure Medications in the Mouse Maximal Electroshock-Induced Seizure Model. Int J Mol Sci 2023; 24. [PMID: 36768937 DOI: 10.3390/ijms24032616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
Varenicline (VAR) is a partial agonist of brain α4β2 nicotinic acetylcholine receptors recommended as a first line pharmacotherapy for smoking cessation. The aim of this study was to examine whether VAR affects the protective activity of four classic antiseizure medications, i.e., carbamazepine (CBZ), phenobarbital (PB), phenytoin (PHT), and valproate (VPA) on maximal electroshock (MES)-induced seizures, which may serve as an experimental model of human-generalized tonic-clonic seizures in mice. VAR administered intraperitoneally (i.p.) at a subthreshold dose of 0.5 mg/kg decreased the protective activity of CBZ against MES-induced convulsions, increasing its median effective dose (ED50) from 10.92 ± 1.0 to 18.15 ± 1.73 mg/kg (p < 0.01). The effect of VAR was dose-dependent because a lower dose of VAR (0.25 mg/kg) failed to antagonize the protective activity of CBZ. VAR administered at the subthreshold dose of 0.5 mg/kg had no impact on the protective activity of PB, PHT, and VPA in the mouse MES model. The inhibitory effect of VAR on the protective activity of CBZ against tonic-clonic convulsions most likely resulted from the pharmacodynamic mechanism(s) and was not associated with the changes in total brain concentrations of CBZ. VAR-evoked alterations in the anticonvulsive activity of CBZ may be of serious concern for epileptic tobacco smokers.
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Baliunas D, Gartner C, Hollingworth SA, Sullivan C, Comans T, Pole JD. Publicly subsidised smoking cessation medicines in times of COVID-19 in Australia: An interrupted time series analysis. Drug Alcohol Rev 2023; 42:225-232. [PMID: 36173196 PMCID: PMC10087959 DOI: 10.1111/dar.13557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 08/31/2022] [Accepted: 09/12/2022] [Indexed: 01/10/2023]
Abstract
INTRODUCTION In Australia, the available published literature demonstrated a spike in dispensed prescription medicines after the onset of the COVID-19 pandemic that subsequently returned to expected levels. Smoking cessation medicines may not follow this pattern because quit attempts are influenced by a range of factors. Knowledge of whether dispensing of these medicines has changed since the pandemic is lacking. We explored the change in dispensing of publicly subsidised smoking cessation medicines since the pandemic. METHODS Australia's universal health-care system provides access to government-subsidised medicines via the Pharmaceutical Benefits Scheme and records of dispensed medicines are publicly available on a nationally aggregated level. We retrieved Pharmaceutical Benefits Scheme data from January 2016 to January 2021. We used interrupted time series modelling to quantify the impact of COVID-19 on dispensing of nicotine replacement therapy (NRT) patches, varenicline and all smoking cessation treatments combined separately. RESULTS After an initial spike in medicines at the onset of the pandemic, the monthly rate of prescriptions dispensed for varenicline was predominantly within predicted ranges, while that of NRT patches was predominantly below predicted ranges. DISCUSSION AND CONCLUSIONS There has been a differential change in the number of subsidised smoking cessation medicines supplied in Australia since the COVID-19 pandemic, with varenicline prescriptions largely within, and NRT patches largely lower than, expected ranges. The reasons for the apparent change in dispensing of subsidised smoking cessation medicines are unclear.
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Affiliation(s)
- Dolly Baliunas
- School of Public Health, The University of Queensland, Brisbane, Australia.,Dalla Lana School of Public Health, The University of Toronto, Toronto, Canada
| | - Coral Gartner
- School of Public Health, The University of Queensland, Brisbane, Australia
| | | | - Clair Sullivan
- Centre for Health Services Research, The University of Queensland, Brisbane, Australia.,Metro North Hospital and Health Service, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Tracy Comans
- Centre for Health Services Research, The University of Queensland, Brisbane, Australia
| | - Jason D Pole
- Dalla Lana School of Public Health, The University of Toronto, Toronto, Canada.,Centre for Health Services Research, The University of Queensland, Brisbane, Australia
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Schneider H, Pearson A, Harris D, Krause S, Tucker A, Gardner K, Chinyanya K. Identification of nicotine-seeking and avoiding larval zebrafish using a new three-choice behavioral assay. Front Mol Neurosci 2023; 16:1112927. [PMID: 37063370 PMCID: PMC10098024 DOI: 10.3389/fnmol.2023.1112927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/21/2023] [Indexed: 04/18/2023] Open
Abstract
Introduction Nicotine dependence is one of the main causes of preventable diseases in the United States. Nicotine-seeking and avoidance behavioral assays in larval zebrafish could be used for identifying potential new pharmacotherapeutics in an early phase of drug discovery and could facilitate the identification of genes and genomic variations associated with nicotine-seeking and avoidance behavior. Methods A new three-choice behavioral assay has been developed for the identification of nicotine-seeking and avoiding larval zebrafish. The three choices are represented by three compartments of a gradient maze. Video-recording and subsequent quantitative analysis of the swimming track was carried out using EthovisionXT (Noldus). Results Three behavioral phenotypes could be identified. Nicotine-seeking larval zebrafish occupied nicotine compartments for longer periods and entered the nicotine-containing compartments most frequently. Nicotine-avoiders spent most of the cumulative time in the water compartment or entered the water compartment most frequently. Non-seekers remained in the center compartment for most of the time. In the gradient maze, about 20-30% of larval zebrafish had a preference for low nicotine concentrations whereas nicotine avoidance was stronger at higher nicotine concentrations. Lower concentrations of nicotine (0.63 μM, 6.3 μM) resulted in higher percentages of nicotine seekers whereas high nicotine concentrations (63 μM, 630 µM) resulted in higher percentages of nicotine avoiders. Pre-treatment of larval zebrafish with nicotine slightly increased the percentage of nicotine avoiders at lower nicotine concentrations. Treatment with varenicline strongly increased the percentage of nicotine avoiders at lower nicotine concentrations. Conclusion The results show that larval zebrafish have individual preferences for nicotine that could change with drug treatment. The three-choice gradient maze assay for larval zebrafish provides a new testing paradigm for studying the molecular and cellular mechanisms of nicotine action and the discovery of potential new pharmacotherapeutics for the treatment of smoking cessation.
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Minian N, Mehra K, Rose J, Veldhuizen S, Zawertailo L, Ratto M, Lecce J, Selby P. Cocreation of a conversational agent to help patients adhere to their varenicline treatment: A study protocol. Digit Health 2023; 9:20552076231182807. [PMID: 37377562 PMCID: PMC10291536 DOI: 10.1177/20552076231182807] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Objective Varenicline is the most efficacious approved smoking cessation medication, making it one of the most cost-effective clinical interventions for reducing tobacco-related morbidity and mortality. Adhering to varenicline is strongly associated with smoking cessation. Healthbots have the potential to help people adhere to their medications by scaling up evidence-based behavioral interventions. In this protocol, we outline how we will follow the UK's Medical Research Council's guidance to codesign a theory-informed, evidence-based, and patient-centered healthbot to help people adhere to varenicline. Methods The study will utilize the Discover, Design and Build, and Test framework and will include three phases: (a) a rapid review and interviews with 20 patients and 20 healthcare providers to understand barriers and facilitators to varenicline adherence (Discover phase); (b) Wizard of Oz test to design the healthbot and get a sense of the questions that chatbot has to be able to answer (Design phase); and (c) building, training, and beta-testing the healthbot (Building and Testing phases) where the Nonadoption, Abandonment, Scale-up, Spread, and Sustainability framework will be used to develop the healthbot using the simplest sensible solution, and 20 participants will beta test the healthbot. We will use the Capability, Opportunity, Motivation-Behavior (COM-B) model of behavior change and its associated framework, the Theoretical Domains Framework, to organize the findings. Conclusions The present approach will enable us to systematically identify the most appropriate features for the healthbot based on a well-established behavioral theory, the latest scientific evidence, and end users' and healthcare providers' knowledge.
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Affiliation(s)
- Nadia Minian
- INTREPID Lab (formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, Toronto, ON, 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
| | - Kamna Mehra
- INTREPID Lab (formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Jonathan Rose
- Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, Canada
| | - Scott Veldhuizen
- INTREPID Lab (formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Laurie Zawertailo
- INTREPID Lab (formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, 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
| | - Matt Ratto
- Faculty of Information, University of Toronto, Toronto, ON, Canada
- Schwartz Reisman Institute for Technology and Society, University of Toronto, Toronto, ON, Canada
| | - Julia Lecce
- INTREPID Lab (formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Peter Selby
- INTREPID Lab (formerly Nicotine Dependence Service), Centre for Addiction and Mental Health, Toronto, ON, 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
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Lopes LC, Zhang Y, Ross S, Fulone I, Zhu M, O'Brien KK, Pavalagantharajah S, Leone FT, Sachs DPL, Kathuria H, Murray RL, Zhang YQ. Varenicline for Tobacco-Dependent Adults Who Are Not Ready to Discontinue Use: A Systematic Review and Meta-Analysis. Ann Am Thorac Soc 2022; 19:2077-86. [PMID: 36129426 DOI: 10.1513/AnnalsATS.202110-1122OC] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Rationale: Not all individuals with tobacco dependence are ready to give up smoking. Research reveals behavioral differences between adults ready to discontinue tobacco use and those who are not. Thus, the interventions applied to these populations might differ. However, the evidence of using varenicline in individuals who are not ready to discontinue tobacco use is uncertain. Objectives: To determine if, in tobacco-dependent adults who report not being ready to discontinue tobacco use, clinicians should begin treatment with varenicline or wait until subjects are ready to discontinue tobacco use. Methods: We conducted a systematic review to assess the effectiveness and safety of treatment with varenicline in tobacco-dependent adults who are not ready to discontinue tobacco use. We systematically searched the Cumulative Index to Nursing and Allied Health Literature, Embase, MEDLINE, and the Cochrane Central Register of Controlled Trials to identify randomized controlled trials comparing varenicline versus placebo for individuals who were not ready to discontinue tobacco use. Outcomes of interest include point prevalence abstinence during treatment or at six months or longer, smoking reduction, motivation to quit, adverse events, and withdrawal symptoms. Two authors independently extracted data and assessed eligibility and risk of bias using a standardized data collection form. We followed the Grading of Recommendations, Assessment, Development and Evaluations approach to assess the certainty of evidence. Results: Five trials met our inclusion criteria. All 2,616 participants were adults who were not ready to discontinue tobacco use at study entry. For 7-day point prevalence abstinence at six months or longer, high-certainty evidence suggested that varenicline increased abstinence compared with placebo (relative risk, 2.00 [95% confidence interval (CI), 1.70-2.35]; absolute risk reduction, 173 more per 1,000 [95% CI, 121 more to 234 more]). We identified moderate-certainty evidence suggesting that varenicline increased serious adverse events (relative risk, 1.75 [95% CI, 0.98-3.13]; absolute risk reduction, 12 more per 1,000 [95% CI, 0 fewer to 35 more]). For withdrawal, low-certainty evidence suggested that varenicline treatment was associated with a lower symptom score (mean difference, 1.54 points lower; 95% CI, 2.15-0.93 points lower; low certainty) assessed using the Brief Questionnaire of Smoking Urges. Conclusions: In tobacco-dependent adults who are not ready to discontinue tobacco use, initiating varenicline treatment results in a large increase in abstinence and likely results in a slight increase in serious adverse events.
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Nieto SJ, Enders CK, Witkiewitz K, O'Malley SS, Ray LA. Combination treatment with varenicline and naltrexone reduces World Health Organization risk drinking levels. Alcohol Clin Exp Res 2022; 46:2258-2266. [PMID: 36515648 DOI: 10.1111/acer.14953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/10/2022] [Accepted: 09/23/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND The U.S. Food and Drug Administration identifies abstinence and the absence of heavy drinking days as outcomes for pharmacotherapy trials for alcohol use disorder (AUD). However, many individuals with AUD struggle to achieve these outcomes, which may discourage them from seeking treatment. World Health Organization (WHO) risk drinking levels have garnered attention in the alcohol field as potential non-abstinent outcomes for AUD medication trials. Further, testing combination pharmacotherapy for AUD represents an important direction in the field, particularly using medications such as naltrexone and varenicline, which are approved for treating AUD and smoking, respectively. The objective of the current study was to test the utility of the WHO risk drinking levels as a drinking outcome in a randomized clinical trial of combined varenicline and naltrexone for smoking cessation and drinking reduction. These analyses provide additional tests of the efficacy of this combination treatment. METHODS The current study is a secondary analysis of a phase 2, randomized, double-blind clinical trial, wherein participants (N = 165) who were daily smokers and heavy drinkers were randomly assigned to receive either 2 mg/day of varenicline plus 50 mg/day of naltrexone or 2 mg/day of varenicline plus placebo for 12 weeks. Medication effects on 1- and 2-level reductions in WHO risk drinking levels were assessed at 4, 8, and 12 weeks into the active medication period. RESULTS In logistic growth curve models individuals receiving the combined treatment had greater reductions in WHO risk drinking levels than individuals taking varenicline alone when assessed at 4 weeks into the active medication period. Among individuals who were WHO high and very high risk drinkers at baseline, the largest effect sizes favoring combination treatment were at Week 4 for the WHO 2-level reduction outcome (Cohen's h = 0.202) and Week 12 for the WHO 1-level reduction outcome (Cohen's h = 0.244), although these effects did not reach statistical significance. CONCLUSIONS These findings provide evidence that combined varenicline plus naltrexone treatment is effective at reducing WHO risk drinking levels, particularly among individuals who smoke cigarettes daily and drink heavily. These results add to a growing body of literature validating reductions in WHO risk drinking levels as outcomes of alcohol medication trials.
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Affiliation(s)
- Steven J Nieto
- Department of Psychology, University of California at Los Angeles, Los Angeles, California, USA
| | - Craig K Enders
- Department of Psychology, University of California at Los Angeles, Los Angeles, California, USA
| | - Katie Witkiewitz
- Department of Psychology, University of New Mexico, Albuquerque, New Mexico, USA
| | | | - Lara A Ray
- Department of Psychology, University of California at Los Angeles, Los Angeles, California, USA.,Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, Los Angeles, California, USA
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30
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Raper J, Eldridge MAG, Sternson SM, Shim JY, Fomani GP, Richmond BJ, Wichmann T, Galvan A. Characterization of Ultrapotent Chemogenetic Ligands for Research Applications in Nonhuman Primates. ACS Chem Neurosci 2022; 13:3118-3125. [PMID: 36279419 PMCID: PMC9910343 DOI: 10.1021/acschemneuro.2c00525] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Chemogenetics is a technique for obtaining selective pharmacological control over a cell population by expressing an engineered receptor that is selectively activated by an exogenously administered ligand. A promising approach for neuronal modulation involves the use of "Pharmacologically Selective Actuator Modules" (PSAMs); these chemogenetic receptors are selectively activated by ultrapotent "Pharmacologically Selective Effector Molecules" (uPSEMs). To extend the use of PSAM/PSEMs to studies in nonhuman primates, it is necessary to thoroughly characterize the efficacy and safety of these tools. We describe the time course and brain penetrance in rhesus monkeys of two compounds with promising binding specificity and efficacy profiles in in vitro studies, uPSEM792 and uPSEM817, after systemic administration. Rhesus monkeys received subcutaneous (s.c.) or intravenous (i.v.) administration of uPSEM817 (0.064 mg/kg) or uPSEM792 (0.87 mg/kg), and plasma and cerebrospinal fluid samples were collected over 48 h. Both compounds exhibited good brain penetrance, relatively slow washout, and negligible conversion to potential metabolites─varenicline or hydroxyvarenicline. In addition, we found that neither of these uPSEMs significantly altered the heart rate or sleep. Our results indicate that both compounds are suitable candidates for neuroscience studies using PSAMs in nonhuman primates.
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Affiliation(s)
- Jessica Raper
- Emory National Primate Research Center, Emory University, Atlanta, Georgia 30329, United States
| | - Mark A G Eldridge
- Laboratory of Neuropsychology, National Institute of Mental Health, Bethesda, Maryland 20892, United States
| | - Scott M Sternson
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia 20147, United States
- Department of Neurosciences, Howard Hughes Medical Institute, University of California, San Diego, La Jolla, California 92093, United States
| | - Jalene Y Shim
- Laboratory of Neuropsychology, National Institute of Mental Health, Bethesda, Maryland 20892, United States
| | - Grace P Fomani
- Laboratory of Neuropsychology, National Institute of Mental Health, Bethesda, Maryland 20892, United States
| | - Barry J Richmond
- Laboratory of Neuropsychology, National Institute of Mental Health, Bethesda, Maryland 20892, United States
| | - Thomas Wichmann
- Emory National Primate Research Center, Emory University, Atlanta, Georgia 30329, United States
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Morris K. Udall Center of Excellence for Parkinson's Disease, Emory University, Atlanta, Georgia 30322, United States
| | - Adriana Galvan
- Emory National Primate Research Center, Emory University, Atlanta, Georgia 30329, United States
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Morris K. Udall Center of Excellence for Parkinson's Disease, Emory University, Atlanta, Georgia 30322, United States
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Wirta D, Torkildsen GL, Boehmer B, Hollander DA, Bendert E, Zeng L, Ackermann M, Nau J. ONSET-1 Phase 2b Randomized Trial to Evaluate the Safety and Efficacy of OC-01 ( Varenicline Solution) Nasal Spray on Signs and Symptoms of Dry Eye Disease. Cornea 2022; 41:1207-1216. [PMID: 36107843 PMCID: PMC9473713 DOI: 10.1097/ico.0000000000002941] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/03/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE The purpose of this trial was to evaluate the safety and efficacy of OC-01 (varenicline solution), a nicotinic acetylcholine receptor agonist nasal spray, on signs and symptoms of dry eye disease. METHODS A phase 2b, multicenter, randomized, double-masked, vehicle-controlled trial (ONSET-1; NCT03636061) was performed. Patients were aged 22 years or older with a physician's diagnosis of dry eye disease and previous use of artificial tears were randomized 1:1:1:1 to control (vehicle nasal spray twice daily [BID]), OC-01 0.006 mg BID, OC-01 0.03 mg BID, and OC-01 0.06 mg BID. The primary end point was the change in the anesthetized Schirmer test score from baseline to day 28 in the study eye. The secondary end points included the change in the eye dryness score from baseline to day 28. RESULTS One hundred eighty-two patients were randomized. After 28 days, patients who received OC-01 0.03 or 0.06 mg showed a statistically significant improvement in tear film production relative to vehicle, with least squares mean differences from vehicle of 7.7 mm [95% confidence interval, 3.8-11.7; P < 0.001] with OC-01 0.03 mg and 7.5 mm (95% confidence interval, 3.4-11.6; P < 0.001) with OC-01 0.06 mg. Patients receiving OC-01 0.03 mg showed a significant reduction in the eye dryness score by day 28 versus vehicle (P = 0.021); those receiving the OC-01 0.06 mg dose showed a nonsignificant reduction versus vehicle. OC-01 administration was associated with sneezing (62%-84%) and cough (9%-25%); these were transient and predominantly mild in severity. CONCLUSIONS OC-01 nasal spray administered BID at 0.03 and 0.06 mg resulted in significant improvements in signs and symptoms of dry eye disease, was well tolerated, and warrants further clinical investigation.
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Affiliation(s)
| | | | | | | | | | - Lijuan Zeng
- Statistics Collaborative, Inc, Washington, DC; and
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Gobarani RK, Ilomäki J, Wood S, Abramson MJ, Bonevski B, George J. Characterising the use of varenicline: an analysis of the Australian dispensing claims data. Addiction 2022; 117:2683-2694. [PMID: 35603915 PMCID: PMC9542363 DOI: 10.1111/add.15949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/03/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND AIMS In Australia, patterns of use of smoking cessation medications and factors associated with their dispensing are currently not known. This study aimed to measure the demographic and clinical factors associated with varenicline dispensing compared with nicotine replacement therapy (NRT) and bupropion among first-time users of Pharmaceutical Benefits Scheme (PBS) subsidised smoking cessation medicines in Australia and to characterise those who discontinued varenicline treatment prematurely. DESIGN Retrospective, population-based study. Logistic regression was used to identify factors associated with varenicline dispensing compared with NRT and bupropion. Sensitivity analyses estimated the proportion of individuals who completed the recommended 12 weeks of varenicline treatment. SETTING AND PARTICIPANTS First-time users of PBS subsidised smoking cessation medicines in Australia. Individuals first dispensed a smoking cessation medicine between 2011 and 2019 were identified from a 10% random sample of the national dispensing claims data. MEASUREMENTS The outcome for the regression analysis was the dispensing of varenicline compared with NRT and bupropion. The dispensing of a smoking cessation medicine was identified using the World Health Organization Anatomical Therapeutic Chemical Classification System and PBS item codes. Independent variables included demographic and clinical characteristics such as sex, age, concessional status, year of treatment initiation and comorbidities identified using the Rx-Risk index. The proportion of people who discontinued varenicline treatment after the initiation pack was determined using prescription refill data. FINDINGS A total of 94 532 people had their first PBS subsidised smoking cessation medicine. Of these, 62 367 (66.0%) were dispensed varenicline, 29 949 (31.7%) NRT and 2216 (2.3%) bupropion. The odds of varenicline dispensing were higher in males (OR, 1.18; 95% CI, 1.14-1.21), but lower in older adults (0.86 [0.82-0.90] in above 30 years to 0.49 [0.47-0.52] in 61 years and above), among concession beneficiaries (0.44; 0.43-0.46), and those with congestive heart failure (0.60; 0.53-0.68), depression (0.61; 0.54-0.69), anxiety (0.70; 0.66-0.73), psychotic illness (0.39; 0.37-0.42), and chronic obstructive pulmonary disease (0.87; 0.82-0.92). The majority (37 670; 60.4%) of those dispensed varenicline discontinued treatment after the initiation pack. Anxiety and psychotic illnesses were significantly more prevalent in those who discontinued treatment. Only 2804 (4.5%) of those dispensed varenicline completed 12 weeks of treatment. CONCLUSION Individuals dispensed varenicline in Australia appear to be healthier compared with those who are dispensed nicotine replacement therapy or bupropion.
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Affiliation(s)
- Rukshar K. Gobarani
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical SciencesMonash UniversityVictoriaAustralia
| | - Jenni Ilomäki
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical SciencesMonash UniversityVictoriaAustralia,School of Public Health and Preventive MedicineMonash UniversityVictoriaAustralia
| | - Stephen Wood
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical SciencesMonash UniversityVictoriaAustralia
| | - Michael J. Abramson
- School of Public Health and Preventive MedicineMonash UniversityVictoriaAustralia
| | - Billie Bonevski
- Discipline Lead and Discipline Group Lead, College of Medicine and Public HealthFlinders UniversityAdelaideAustralia
| | - Johnson George
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical SciencesMonash UniversityVictoriaAustralia,School of Public Health and Preventive MedicineMonash UniversityVictoriaAustralia
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Gobarani RK, Weeks GR, Abramson MJ, Bonevski B, Paul E, Webb A, Kirsa S, Smith BJ, Thomas D, Perinpanathan S, Parkinson J, Meanger D, Coward L, Rofe O, Lee P, George J. Which smokers enrol in a hospital based smoking cessation trial? Survey of smoking related behaviours, quit attempts and motivation to quit. Health Promot J Austr 2022; 34:420-428. [PMID: 36065155 DOI: 10.1002/hpja.658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 08/18/2022] [Accepted: 08/30/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Understanding smoking behaviours in hospital patients who smoke may improve inpatient cessation treatments. This study aimed to describe smoking-related behaviours, past-quit attempts, and self-reported difficulties experienced in quitting among those who enrolled in a smoking cessation trial of varenicline. METHODS Baseline data were obtained from adult hospitalised smokers (average ≥10 cigarettes/day in 4-weeks prior to hospitalisation) who enrolled in a randomised, placebo-controlled trial of varenicline ± nicotine lozenges at 5 Australian public hospitals. A logistic regression model tested the association between participant characteristics and quitting in the previous 12 months. RESULTS Participants' (n=320; 57% male, 52.5 ± 12.1 years old) motivation and confidence in quitting were high. A total of 120 participants (37.5%) had attempted quitting in the previous 12-months. Prior hospitalisation (P=0.008) and employment status (P=0.015) were significantly associated with past quit attempts. No statistically significant differences were noted in the reason for hospitalisation or the level of nicotine dependence between participants who attempted quitting in the previous 12 months and their counterparts. Smoking cessation pharmacotherapy was used by 55% of those attempting to quit; nicotine replacement therapy (65.2%) and varenicline (16.7%) most common. Stress or anxiety, urges to smoke and a lack of motivation were the difficulties experienced in past quit attempts. CONCLUSIONS Those who had a prior hospitalisation and were unemployed had significantly greater odds of reporting past quit attempts. Further research is needed to investigate the degree of adherence among inpatient smokers with the smoke-free hospital policies and the frequency of NRT provision and uptake on admission. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Rukshar K Gobarani
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Gregory R Weeks
- Pharmacy Department, Barwon Health, Geelong, Victoria, Australia
| | - Michael J Abramson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Billie Bonevski
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia
| | - Eldho Paul
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,Clinical Haematology Department, The Alfred, Melbourne, Victoria, Australia
| | - Ashley Webb
- Anaesthetist, Department of Anaesthesia and Pain Management, Peninsula Health, Frankston, Victoria, Australia
| | - Sue Kirsa
- Pharmacy Department, Monash Health, Clayton, Victoria, Australia; Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Brian J Smith
- General and Respiratory Medicine, Bendigo Hospital, Victoria, Australia
| | - Dennis Thomas
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New South Wales, Australia
| | | | | | - Darshana Meanger
- Pharmacy Department, Peninsula Health, Frankston, Victoria, Australia
| | - Lisa Coward
- Department of Anaesthesia and Pain Management, Peninsula Health, Frankston, Victoria, Australia
| | - Olivia Rofe
- Pharmacy Department, Eastern Health, Melbourne, Victoria, Australia
| | - Paula Lee
- Pharmacy Department, Eastern Health, Box Hill, Victoria, Australia
| | - Johnson George
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
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Ibrahim F, Aboshabana R, Elmansi H. Spectroscopic strategies for quantitation of varenicline in pharmaceutical preparations and content uniformity testing. R Soc Open Sci 2022; 9:220628. [PMID: 36177195 PMCID: PMC9515633 DOI: 10.1098/rsos.220628] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/26/2022] [Indexed: 06/16/2023]
Abstract
Herein, two new facile methods were examined for varenicline determination using erythrosine. The latter is a food additive that has been recently investigated as a fluorescent dye for the determination of drugs. In the first method, the fluorescence of erythrosine B was quenched quantitatively by increasing the concentration of varenicline through ion-pair complex formation. This linear response was a basis for the spectrofluorimetric method used for varenicline quantitation in pure and dosage forms. The quenching is correlated with the concentration linearly over the range of 0.4-4.0 µg ml-1 at 550 nm after excitation at 528 nm with a correlation coefficient of 0.9993. Different parameters were investigated to reach the optimal conditions with the highest sensitivity and repeatability. The second method is depending on measuring the formed complex by spectrophotometry at 550 nm over the range of 1.0-10.0 µg ml-1 with an excellent correlation coefficient of 0.9999. The suggested methods were validated consistently with ICH guidelines, with acceptable results. The procedures were used to test the uniformity of content of Champix tablets. By comparing with the previous spectroscopic method, there was no significant difference as revealed from the calculated Student t-test and variance ratio F-test values.
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Affiliation(s)
- Fawzia Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
| | - Rasha Aboshabana
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
| | - Heba Elmansi
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
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Zaso MJ, Hendershot CS. Effects of varenicline and bupropion on laboratory smoking outcomes: Meta-analysis of randomized, placebo-controlled human laboratory studies. Addict Biol 2022; 27:e13218. [PMID: 36001439 PMCID: PMC9413474 DOI: 10.1111/adb.13218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 07/14/2022] [Accepted: 07/17/2022] [Indexed: 11/30/2022]
Abstract
Human laboratory studies are widely used to evaluate behavioural mechanisms of pharmacotherapy effects. Results from human laboratory studies examining smoking cessation pharmacotherapies have not been examined in aggregate. The current meta-analysis aimed to synthesize data from randomized, placebo-controlled human laboratory studies on the effects of non-nicotine pharmacotherapies on outcomes relevant for smoking cessation. Literature searches identified 15 human laboratory studies of varenicline (n = 697) and 9 studies of bupropion (n = 313) with sufficient data for inclusion. Studies involved acute or subacute pharmacotherapy treatment with administration durations ranging from a single dose to 8 weeks. Primary outcomes examined were craving, withdrawal and behavioural indices of smoking. Varenicline significantly reduced craving (Hedge's g = -0.36[-0.54,-0.17], p < 0.001), withdrawal (g = -0.25[-0.41,-0.09], p = 0.003) and behavioural indices of smoking (g = -0.36[-0.63,-0.08], p = 0.01) relative to placebo. In contrast, results were inconclusive regarding bupropion's effects on craving (g = -0.13[-0.32,0.05], p = 0.15), withdrawal (g = -0.15[-0.44,0.14], p = 0.31) and behavioural indices of smoking (g = -0.05[-0.35,0.24], p = 0.73) relative to placebo. Findings provide meta-analytic support that short-term varenicline treatment decreases craving, withdrawal symptoms and smoking behaviour under controlled laboratory conditions. However, findings also suggest the ability of human laboratory paradigms to detect pharmacotherapy effects may differ by treatment type. Pharmacotherapy discovery and evaluation efforts utilizing human laboratory methods should aim to align study designs and laboratory procedures with presumed therapeutic mechanisms when possible.
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Affiliation(s)
- Michelle J. Zaso
- Clinical and Research Institute on Addictions, University at Buffalo – The State University of New York, Buffalo, NY USA
| | - Christian S. Hendershot
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Jackson SE, Cox S, Shahab L, Brown J. Prevalence of use and real-world effectiveness of smoking cessation aids during the COVID-19 pandemic: a representative study of smokers in England. Addiction 2022; 117:2504-2514. [PMID: 35491743 PMCID: PMC9347508 DOI: 10.1111/add.15903] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 04/06/2022] [Indexed: 11/30/2022]
Abstract
AIM To measure whether the prevalence of use and real-world effectiveness of different smoking cessation aids has changed in England since the coronavirus disease 2019 (COVID-19) pandemic. DESIGN Representative monthly cross-sectional surveys, January 2015-June 2021. SETTING England. PARTICIPANTS A total of 7300 adults (≥18 y) who had smoked within the previous 12 months and had made ≥1 quit attempt during that period. MEASUREMENTS The independent variable was the timing of the COVID-19 pandemic (pre-pandemic [January 2015-February 2020] vs pandemic [April 2020-June 2021]). We analysed (i) the association between the pandemic period and self-reported use (vs non-use) during the most recent quit attempt of: prescription medication (nicotine replacement therapy [NRT]/varenicline/bupropion), NRT bought over-the-counter, e-cigarettes, traditional behavioural support and traditional remote support (telephone support/written self-help materials/websites) and (ii) the interaction between the pandemic period and use of these cessation aids on self-reported abstinence from quit date to survey. Covariates included age, sex, social grade, level of cigarette addiction and characteristics related to the quit attempt. FINDINGS After adjustment for secular trends, there was a significant increase from the pre-pandemic to pandemic period in the prevalence of use of traditional remote support by past-year smokers in a quit attempt (OR = 2.18; 95% CI, 1.42-3.33); specifically telephone support (OR = 7.16; 95% CI, 2.19-23.45) and websites (OR = 2.39; 95% CI, 1.41-4.08). There was also an increase in the prevalence of use of prescription medication (OR = 1.47; 95% CI, 1.08-2.00); specifically varenicline (OR = 1.66; 95% CI, 1.09-2.52). There were no significant changes in prevalence of use of other cessation aids after adjustment for secular trends. People who reported using prescription medication (OR = 1.41; 95% CI, 1.09-1.84) and e-cigarettes (OR = 1.87; 95% CI, 1.62-2.16) had greater odds of reporting abstinence than people who did not. There were no significant interactions between the pandemic period and use of any cessation aid on abstinence, after adjustment for covariates and use of the other aids, although data were insensitive to distinguish no change from meaningful modest (OR = 1.34) effects (Bayes factors 0.72-1.98). CONCLUSIONS In England, the COVID-19 pandemic was associated with an increase in use of remote support for smoking cessation and varenicline by smokers in a quit attempt up to June 2021. The data were inconclusive regarding an association between the pandemic and changes in the real-world effectiveness of popular smoking cessation aids.
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Affiliation(s)
- Sarah E. Jackson
- Department of Behavioural Science and HealthUniversity College LondonLondonUK,SPECTRUM ConsortiumUK
| | - Sharon Cox
- Department of Behavioural Science and HealthUniversity College LondonLondonUK,SPECTRUM ConsortiumUK
| | - Lion Shahab
- Department of Behavioural Science and HealthUniversity College LondonLondonUK,SPECTRUM ConsortiumUK
| | - Jamie Brown
- Department of Behavioural Science and HealthUniversity College LondonLondonUK,SPECTRUM ConsortiumUK
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Choo SJ, Chang CT, Tangiisuran B, Latif MFA, Sanusi NA, Harun SN. Abstinence Rate, Adverse Events and Withdrawal Symptoms after Varenicline Use and Predicting Factors of Smoking Abstinence: A Multicentre Single-State Study in Malaysia. Int J Environ Res Public Health 2022; 19. [PMID: 35805417 DOI: 10.3390/ijerph19137757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 11/29/2022]
Abstract
(1) Background: Varenicline is a widely prescribed agent in smoking cessation. However, the abstinence rate, the incidence of adverse events and withdrawal symptoms, have not been widely studied locally. This study aimed to determine the prevalence of smoking abstinence, adverse events and withdrawal symptoms associated with varenicline use, as well as possible factors contributing to successful smoking abstinence. (2) Methods: This was a retrospective, cohort study conducted in twenty-two government-operated smoking cessation clinics across the state of Perak, Malaysia. The medical records of adult smokers (age ≥ 18 years old) who were prescribed with varenicline between January 2017 and June 2018 were traced. The medical records of smokers who used pharmacotherapy other than varenicline, those who received less than four weeks of varenicline treatment, and with missing data were excluded. (3) Results: Sixty-eight out of 114 subjects (59.6%) successfully achieved smoking abstinence. Probable varenicline-induced chest pain was documented in three subjects. Altered behaviour (n = 2) and auditory hallucinations (n = 1) were also reported. Varenicline treatment duration is a significant predictive factor for successful smoking abstinence (odds ratio (OR) = 2.45; 95% confidence interval (CI) 1.74−3.45; p < 0.001), followed by age (OR = 1.25; 95% CI 1.005−1.564; p = 0.045), the presence of adverse events (OR = 0.096; 95% CI 0.014−0.644; p = 0.016) and withdrawal symptoms (OR = 0.032; 95% CI 0.016−0.835; p = 0.032). (4) Conclusion: Almost two-thirds of the subjects achieved smoking abstinence with varenicline. The duration of the treatment, as well as the patients’ ages had a significant influence on successful smoking abstinence. Rare cases of cardiovascular and neuropsychiatric-related adverse events were reported, warranting continuous surveillance and adverse drug reaction reporting.
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Lee A, Chang AA, Lyu JC, Ling PM, Hsia SL. Characterizing Participant Perceptions about Smoking-Cessation Pharmacotherapy and E-Cigarettes from Facebook Smoking-Cessation Support Groups. Int J Environ Res Public Health 2022; 19:7314. [PMID: 35742557 PMCID: PMC9224383 DOI: 10.3390/ijerph19127314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 01/25/2023]
Abstract
The prevalence of smoking among young adults aged 19-28 years old in the United States persists at rates of 14.3%. Young adults underutilize pharmacotherapy for smoking cessation, and the use of e-cigarettes has increased. We analyzed comments from online smoking-cessation support groups to understand young-adult smokers' views of pharmacotherapy and e-cigarettes, to provide a more in-depth insight into the underutilization of pharmacotherapy. A qualitative analysis was performed on comments about pharmacotherapy and e-cigarettes from participants enrolled in online smoking-cessation support groups in 2016-2020. A codebook was developed with a deductive approach to code the comments, followed by thematic analysis. Eighteen themes were identified, with four dominant themes: interest, benefit, knowledge, and flavor. Participants expressed less interest in both nicotine-replacement therapy and e-cigarettes; moreover, they expressed unfamiliarity with and misconceptions about pharmacotherapy, and recognized the enticing flavors of e-cigarettes. Participants often felt e-cigarettes were not useful for smoking cessation, but the flavors of e-cigarettes were appealing for use. Participants had mixed opinions about the use of e-cigarettes for smoking cessation, but predominantly felt e-cigarettes were not useful for smoking cessation. The use of social media may be an effective way to address misconceptions about pharmacotherapy for smoking cessation and increase willingness to accept assistance.
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Affiliation(s)
- Allison Lee
- School of Pharmacy, University of California, San Francisco, CA 94143, USA; (A.L.); (A.A.C.)
| | - Angela A. Chang
- School of Pharmacy, University of California, San Francisco, CA 94143, USA; (A.L.); (A.A.C.)
| | - Joanne Chen Lyu
- Center for Tobacco Control Research and Education, University of California, San Francisco, CA 94143, USA; (J.C.L.); (P.M.L.)
| | - Pamela M. Ling
- Center for Tobacco Control Research and Education, University of California, San Francisco, CA 94143, USA; (J.C.L.); (P.M.L.)
- Division of General Internal Medicine, Department of Medicine, School of Medicine, University of California, San Francisco, CA 94143, USA
| | - Stephanie L. Hsia
- School of Pharmacy, University of California, San Francisco, CA 94143, USA; (A.L.); (A.A.C.)
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Thomas KH, Dalili MN, López‐López JA, Keeney E, Phillippo DM, Munafò MR, Stevenson M, Caldwell DM, Welton NJ. Comparative clinical effectiveness and safety of tobacco cessation pharmacotherapies and electronic cigarettes: a systematic review and network meta-analysis of randomized controlled trials. Addiction 2022; 117:861-876. [PMID: 34636108 PMCID: PMC9293179 DOI: 10.1111/add.15675] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 08/11/2021] [Indexed: 12/27/2022]
Abstract
AIM To determine how varenicline, bupropion, nicotine replacement therapy (NRT) and electronic cigarettes compare with respect to their clinical effectiveness and safety. METHOD Systematic reviews and Bayesian network meta-analyses of randomized controlled trials, in any setting, of varenicline, bupropion, NRT and e-cigarettes (in high, standard and low doses, alone or in combination) in adult smokers and smokeless tobacco users with follow-up duration of 24 weeks or greater (effectiveness) or any duration (safety). Nine databases were searched until 19 February 2019. Primary outcomes were sustained tobacco abstinence and serious adverse events (SAEs). We estimated odds ratios (ORs) and treatment rankings and conducted meta-regression to explore covariates. RESULTS We identified 363 trials for effectiveness and 355 for safety. Most monotherapies and combination therapies were more effective than placebo at helping participants to achieve sustained abstinence; the most effective of these, estimated with some imprecision, were varenicline standard [OR = 2.83, 95% credible interval (CrI) = 2.34-3.39] and varenicline standard + NRT standard (OR = 5.75, 95% CrI = 2.27-14.88). Estimates were higher in smokers receiving counselling than in those without and in studies with higher baseline nicotine dependence scores than in those with lower scores. Varenicline standard + NRT standard showed a high probability of being ranked best or second-best. For safety, only bupropion at standard dose increased the odds of experiencing SAEs compared with placebo (OR = 1.27, 95% CrI = 1.04-1.58), and we found no evidence of effect modification. CONCLUSIONS Most tobacco cessation monotherapies and combination therapies are more effective than placebo at helping participants to achieve sustained abstinence, with varenicline appearing to be most effective based on current evidence. There does not appear to be strong evidence of associations between most tobacco cessation pharmacotherapies and adverse events; however, the data are limited and there is a need for improved reporting of safety data.
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Affiliation(s)
- Kyla H. Thomas
- Population Health Sciences, Bristol Medical SchoolUniversity of BristolUK
| | - Michael N. Dalili
- Population Health Sciences, Bristol Medical SchoolUniversity of BristolUK
| | - José A. López‐López
- Population Health Sciences, Bristol Medical SchoolUniversity of BristolUK,Department of Basic Psychology and Methodology, Faculty of PsychologyUniversity of MurciaMurciaSpain
| | - Edna Keeney
- Statistical and Health Economic Modelling, Population Health Sciences, Bristol Medical SchoolUniversity of BristolBristolUK
| | - David M. Phillippo
- Population Health Sciences, Bristol Medical SchoolUniversity of BristolUK
| | - Marcus R. Munafò
- School of Psychological ScienceUniversity of BristolBristolUK,MRC Integrative Epidemiology Unit at the University of BristolBristolUK
| | - Matt Stevenson
- Health Economics and Decision Science, School of Health and Related ResearchUniversity of SheffieldSheffieldUK
| | | | - Nicky J. Welton
- Population Health Sciences, Bristol Medical SchoolUniversity of BristolUK
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Nall RW, Beloate LN, Meyerink ME, Penaloza T, Doolittle J, Froeliger B, Kalivas PW, Garcia-Keller C. Assessing combined effects of varenicline and N-acetylcysteine on reducing nicotine seeking in rats. Addict Biol 2022; 27:e13151. [PMID: 35229943 PMCID: PMC10777539 DOI: 10.1111/adb.13151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 12/22/2021] [Accepted: 01/14/2022] [Indexed: 11/27/2022]
Abstract
Nicotine addiction is a chronic relapsing brain disorder, and cigarette smoking is the leading cause of preventable death in the United States. Currently, the most effective pharmacotherapy for smoking cessation is Varenicline (VRN), which reduces both positive and negative reinforcement by nicotine. Clinically, VRN attenuates withdrawal symptoms and promotes abstinence, but >50% of smokers relapse within 3 months following a quit attempt. This may indicate that VRN fails to ameliorate components of nicotine-induced neuroplasticity that promote relapse vulnerability. Animal models reveal that glutamate dysregulation in the nucleus accumbens is associated with nicotine relapse. N-acetylcysteine (NAC) normalizes glutamate transmission and prolongs cocaine abstinence. Thus, combining VRN and NAC may promote and maintain, respectively, nicotine abstinence. In rats, we found that VRN effectively reduced nicotine self-administration and seeking in early abstinence, but not seeking later in abstinence. In contrast, NAC reduced seeking only later in abstinence. Because VRN and NAC are sometimes associated with mild adverse effects, we also evaluated a sequential approach combining subthreshold doses of VRN during self-administration and early abstinence with subthreshold doses of NAC during late abstinence. As expected, subthreshold VRN did not reduce nicotine intake. However, subthreshold VRN and NAC reduced seeking in late abstinence, suggesting a combined effect. Overall, our results suggest that combining subthreshold VRN and NAC is a viable and drug-specific approach to promote abstinence and reduce relapse while minimizing adverse effects. Our data also suggest that different components and time points in addiction engage the different neurocircuits targeted by VRN and NAC.
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Affiliation(s)
- Rusty W. Nall
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
- Department of Psychology, Jacksonville State University, 700 Pelham Rd. N., Jacksonville, AL, 36265
| | - Lauren N. Beloate
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
- Department of Biomedical Engineering, The Pennsylvania State University, 122 Chemical and Biomedical Engineering Building, University Park, PA 16802
| | - Michael E. Meyerink
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
| | - Tiffany Penaloza
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
| | - Jade Doolittle
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
| | - Brett Froeliger
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
- Department of Psychiatry, Department of Psychological Sciences, University of Missouri-Columbia, 1 Hospital Dr, Columbia, MO 65201
| | - Peter W. Kalivas
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
| | - Constanza Garcia-Keller
- Department of Neuroscience, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC 29425
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Lynch KG, Plebani J, Spratt K, Morales M, Tamminga M, Feibush P, Kampman KM. Varenicline for the Treatment of Cocaine Dependence. J Addict Med 2022; 16:157-163. [PMID: 33840773 PMCID: PMC8497642 DOI: 10.1097/adm.0000000000000842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Varenicline is a partial agonist at the α2β4 and α6β2 nAChR receptors and a full agonist at α7 receptors. Both α7 and α6β2 receptors are implicated in the neural reward circuitry activated by cocaine use. A preliminary clinical trial suggested that varenicline treatment reduced cocaine use. This trial was intended to replicate and extend the findings of the previous trial. METHODS This was a 12-week, double-blind, placebo-controlled clinical trial involving 156 subjects with DSM IV cocaine dependence. Subjects received up to 2 mg of varenicline or identical placebo daily along with weekly relapse prevention psychotherapy. The primary outcome measure was cocaine use measured by thrice-weekly urine drug screens. Additional outcome measures included end of study cocaine abstinence, cocaine craving, cocaine withdrawal symptom severity, cigarette use, and global improvement measure by the Clinical Global Improvement Scale. RESULTS End of study cocaine abstinence, measured by urine drug screens during the last 3 weeks of the trial, was not different between groups (8% in the varenicline treated subjects and versus 9% in placebo-treated subjects). Generalized estimating equations analysis of urine drug screen results showed no significant difference between groups in cocaine abstinence over the 12 weeks of the trial. There were no significant differences between the 2 groups in cocaine craving or cocaine withdrawal symptom severity. Varenicline was well-tolerated. There were no medication-associated serious adverse events. CONCLUSIONS Varenicline plus cognitive-behavioral therapy does not seem to be an efficacious treatment for cocaine dependence.
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Affiliation(s)
- Kevin G. Lynch
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3900 Chestnut Street, Philadelphia, PA, USA, 19104
| | - Jennifer Plebani
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3900 Chestnut Street, Philadelphia, PA, USA, 19104
| | - Kelly Spratt
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, USA, 19104
| | - Mark Morales
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3900 Chestnut Street, Philadelphia, PA, USA, 19104
| | - Mila Tamminga
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3900 Chestnut Street, Philadelphia, PA, USA, 19104
| | - Philip Feibush
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3900 Chestnut Street, Philadelphia, PA, USA, 19104
| | - Kyle M. Kampman
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3900 Chestnut Street, Philadelphia, PA, USA, 19104
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Abstract
The most effective intervention for stopping smoking is a combination of professional counselling and pharmacotherapy. Medicines are recommended for all smokers who are motivated to quit and are nicotine dependent. Combination nicotine replacement therapy with a patch and an oral product is more effective than the patch alone. An adequate dose of nicotine must be used for an adequate duration. Varenicline is the most effective oral drug. It is safe in people with stable mental illness. Vaping nicotine is a second-line treatment which can be considered for smokers who are unable to quit with other methods.
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43
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Ock M, Shin JS, Ra SW. Safety and Effectiveness of Varenicline in Korean Smokers: A Nationwide Post-Marketing Surveillance Study. Patient Prefer Adherence 2022; 16:413-426. [PMID: 35210758 PMCID: PMC8858022 DOI: 10.2147/ppa.s344757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/20/2022] [Indexed: 12/04/2022] Open
Abstract
PURPOSE Varenicline has demonstrated its safety and efficacy in Western studies including <3% of Asian participants. This prospective multi-center observational study investigated the safety and effectiveness of varenicline in Korean smokers. PATIENTS AND METHODS Smokers prescribed varenicline for the first time were enrolled from 252 medical institutions. Investigators recorded and graded all adverse events (AEs). To assess the effectiveness of varenicline, the 7-day point prevalence (PP) of smoking cessation was evaluated at the four visits during the 12-week treatment course. Rates of AE incidence and smoking cessation were analyzed using Chi-squared test or Fisher's exact test. This study is registered with ClinicalTrials.gov, number NCT00483002. RESULTS A total of 3719 and 3700 study subjects were included in the safety and effectiveness analyses, respectively. Overall, 346 (9.3%) subjects experienced 471 AEs: 358 mild, 97 moderate, 9 severe, and 7 serious. The most frequent AEs were nausea (5.1%), dyspepsia (0.8%), abnormal dreams (0.8%), insomnia (0.8%), and headache (0.7%). Among the subjects with AEs, 73 subjects discontinued treatment, of which 68 were due to AE occurrence. The 7-day PP of smoking cessation at weeks 1-2, 3-6, 7-10, and ≥ week 11 were 51.7% (387/749), 59.6% (1740/2922), 73.3% (1114/1520), and 77.0% (1116/1449), respectively (p for trend = 0.023). Comorbidities and allergies were associated with a higher incidence of AEs and lower smoking cessation rate (p < 0.05). Younger subjects, infrequent alcohol drinkers, and lighter smokers showed a higher smoking cessation rate (p < 0.05). CONCLUSION Varenicline in adult Korean smokers was well tolerated and effective as a smoking cessation aid in routine clinical practice.
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Affiliation(s)
- Minsu Ock
- Department of Preventive Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Ji Soo Shin
- Medical Affairs, Pfizer Korea, Seoul, South Korea
| | - Seung Won Ra
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
- Correspondence: Seung Won Ra, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojinsunhwan-doro, Dong-gu, Ulsan, 44033, South Korea, Tel +82 52 250 8857, Fax +82 52 250 7048, Email
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Bohadana A, Rokach A, Wild P, Peker B, Dror YF, Babai P, Arish N, Izbicki G. Varenicline for Gradual Versus Abrupt Smoking Cessation in Poorly Motivated Smokers With COPD: A Prematurely Terminated Randomized Controlled Trial. Chronic Obstr Pulm Dis 2022; 9:486-499. [PMID: 35877930 PMCID: PMC9718580 DOI: 10.15326/jcopdf.2022.0305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Although smoking is the leading cause of chronic obstructive pulmonary disease (COPD), many patients with COPD smoke, highlighting the need for effective smoking cessation interventions in this population. This study examined the efficacy and safety of varenicline in increasing smoking cessation rates through "gradual" versus "abrupt" cessation in COPD patients with low motivation to quit smoking. Methods A randomized, open label, 30-week, controlled trial (ClinicalTrials.gov identifier: NCT02894957) was conducted between January 2019 and October 2020 at a center in Israel. Smokers with COPD, poorly motivated to quit, were randomized to 6 weeks of varenicline for smoking reduction and a target quit day (TQD) at the end of week 6 (gradual cessation group) or ad libitum smoking for 5 weeks, 1 week of varenicline, and a TQD at the end of week 6 (abrupt cessation group). After the pre-quit phase, both groups received 12-week regular varenicline treatment and 12-week follow-up. Primary outcome was biochemically-validated continuous abstinence for weeks 6-30. Secondary outcomes were: (1) biochemically-confirmed7-day point prevalence abstinence for weeks 4-30, (2) efficient smoking reduction (≥50% in number of cigarettes/day) in the pre-quit phase; and (3) number of cigarettes/day, motivation to quit, and changes in respiratory symptoms and spirometry from baseline through week 30. Results A drug recall issued by the study sponsor stopped the study after 70/242 (28.9%) patients had been enrolled. The gradual cessation group (n=29) had significantly higher continuous abstinence rates from TQD through week 30 versus the abrupt cessation group (n=41): 20.7% versus 4.9% (odds ratio [OR]=5.09; 95% confidence interval [CI] 0.89-29.17; p=0.048) and higher 7-day point prevalence abstinence levels at all time points but week 18 (p=0.027 at week 6, 0.056 at week 7, and 0.096 at week 9). Motivation to quit increased (p=0.002) and the number of cigarettes/day decreased (p=0.002) over time in both groups. Respiratory symptoms, but not spirometry, improved in both groups at week 30. Treatment was safe and well tolerated. Conclusion In poorly motivated smokers with COPD, using varenicline for a 6-week gradual smoking cessation before TQD, compared with abrupt cessation, significantly increased quit rates up to 6 months. Results were not affected by the smaller-than-expected sample size. Further studies are needed to confirm these data.
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Affiliation(s)
- Abraham Bohadana
- Respiratory Research Unit, Pulmonary Institute, Department of Medicine, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ariel Rokach
- Respiratory Research Unit, Pulmonary Institute, Department of Medicine, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Bela Peker
- Respiratory Research Unit, Pulmonary Institute, Department of Medicine, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | | | - Nissim Arish
- Respiratory Research Unit, Pulmonary Institute, Department of Medicine, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Gabriel Izbicki
- Respiratory Research Unit, Pulmonary Institute, Department of Medicine, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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Gerlach LB, Van T, Kim HM, Chang MUM, Bohnert KM, Zivin K. Trends in Incident Varenicline Prescribing Among Veterans Following the US Food and Drug Administration Drug Safety Warnings. J Clin Psychiatry 2021; 83:20m13763. [PMID: 34936245 PMCID: PMC8711607 DOI: 10.4088/jcp.20m13763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Objective: To evaluate national trends in incident varenicline and nicotine replacement therapy (NRT) prescribing among Department of Veterans Affairs (VA) beneficiaries before and after US Food and Drug Administration (FDA) warnings regarding neuropsychiatric side effects with varenicline use. Methods: All adult VA patients identified as smokers from 2007 to 2019 (N = 3,600,947) were determined and monthly counts of new varenicline and NRT users were calculated. An interrupted time-series analysis estimated the effect of the FDA warnings on varenicline and NRT prescribing overall and among Veterans with and without mental health disorders. Results: The incident use rate of varenicline decreased from a peak of 6.2 per 1,000 veteran smokers in October 2007 to 1.0 by July 2009 following the first FDA warning (pre-warning monthly slope = -0.27; P = .03). New NRT use increased from 10.7 per 1,000 veteran smokers in October 2007 to a peak of 12.6 per 1,000 in July 2009 (slope change = 0.71; P = .01), suggesting potential substitution. Following removal of the FDA boxed warning in December 2016, varenicline prescribing increased but did not return to pre-warning levels by December 2019. Among veterans with and without mental health disorders, varenicline use decreased 90% and 88%, respectively, following the first FDA warning, and both groups had comparable rates of new NRT use. Conclusions: Following the first FDA warning, incident use of varenicline declined significantly among veterans both with and without mental health disorders. Despite removal of the FDA boxed warning in December 2016, new use of varenicline had not returned to pre-warning levels 3 years following the removal.
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Affiliation(s)
- Lauren B. Gerlach
- Department of Psychiatry, University of Michigan, Ann Arbor, MI,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI
| | - Tony Van
- Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
| | - Hyungjin Myra Kim
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI,Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
| | - Ming-Un Myron Chang
- Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
| | - Kipling M. Bohnert
- Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI
| | - Kara Zivin
- Department of Psychiatry, University of Michigan, Ann Arbor, MI,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI,Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
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Varenicline nasal spray (Tyrvaya) for dry eye disease. Med Lett Drugs Ther 2021; 63:198-9. [PMID: 35100236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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Drugs for alcohol use disorder. Med Lett Drugs Ther 2021; 63:193-8. [PMID: 35100235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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Lin CJ, Huang WH, Hsu CY, Tjung JJ, Chan HL. Smoking Cessation Rate and Its Predictors among Heavy Smokers in a Smoking-Free Hospital in Taiwan. Int J Environ Res Public Health 2021; 18:ijerph182412938. [PMID: 34948559 PMCID: PMC8701036 DOI: 10.3390/ijerph182412938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/05/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022]
Abstract
Smoking poses critical risks for heart disease and cancers. Heavy smokers, defined as smoking more than 30 pack-year, are the most important target for smoking cessation. This study aimed to obtain the cessation rate and its predictors among heavy smokers. We collected data from heavy smokers who visited a smoking-free hospital in Taiwan during 2017. All patients were prescribed either varenicline or nicotine replacement therapy (NRT) for smoking cessation, and their smoking status was followed for six months. Successful smoking cessation was defined by self-reported no smoking over the preceding seven days (7-day point abstinence). In total, 280 participants with a mean aged of 53.5 years were enrolled, and 42.9% of participants successfully stopped smoking in 6 months. The results revealed that quitters were older, with hypertension, fewer daily cigarettes, and being prescribed with varenicline. Multiple logistic regressions analyses identified that fewer daily cigarettes and being prescribed with varenicline were predictors of successful smoking cessation. Therefore, we suggest that varenicline use may help heavy smokers in smoking cessation.
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Affiliation(s)
- Chin-Jung Lin
- Department of Family Medicine, Mackay Memorial Hospital, Taipei 106, Taiwan; (C.-J.L.); (W.-H.H.); (C.-Y.H.); (J.-J.T.)
| | - Wei-Hsin Huang
- Department of Family Medicine, Mackay Memorial Hospital, Taipei 106, Taiwan; (C.-J.L.); (W.-H.H.); (C.-Y.H.); (J.-J.T.)
- Community Health Center, Mackay Memorial Hospital, Taipei 106, Taiwan
- Division of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
| | - Che-Yuan Hsu
- Department of Family Medicine, Mackay Memorial Hospital, Taipei 106, Taiwan; (C.-J.L.); (W.-H.H.); (C.-Y.H.); (J.-J.T.)
| | - Jin-Jin Tjung
- Department of Family Medicine, Mackay Memorial Hospital, Taipei 106, Taiwan; (C.-J.L.); (W.-H.H.); (C.-Y.H.); (J.-J.T.)
| | - Hsin-Lung Chan
- Department of Family Medicine, Mackay Memorial Hospital, Taipei 106, Taiwan; (C.-J.L.); (W.-H.H.); (C.-Y.H.); (J.-J.T.)
- Community Health Center, Mackay Memorial Hospital, Taipei 106, Taiwan
- Division of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
- Correspondence: ; Tel.: +886-2-2543-3535; Fax: +886-2-25213847
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Fernandes RRA, Seixas BV, Szklo AS, Guerra RL, Barufaldi LA, de Albuquerque RDCR, de Mello Vianna CM. Cost-Effectiveness Analysis of Varenicline Versus Currently Funded Smoking Cessation Strategies in Brazil. Value Health Reg Issues 2021; 27:25-31. [PMID: 34784545 DOI: 10.1016/j.vhri.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 06/24/2021] [Accepted: 07/06/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVES To assess the cost-effectiveness of varenicline in comparison to currently funded smoking cessation strategies in Brazil. METHODS We modeled the lifetime direct costs and health-related quality of life of a hypothetical cohort of smokers with a single attempt to quit smoking using one of the following: (1) cognitive behavioral therapy (CBT) without any pharmacological intervention, (2) varenicline, (3) bupropion, (4) nicotine replacement therapy (NRT) with transdermal patch, (5) bupropion in combination with NRT transdermal patch, and (6) combined NRT (oral plus transdermal). All drug alternatives were considered with concomitant CBT. The analysis relied on a Markov model based on the Benefits of Smoking Cessation and Outcomes study and used different age and sex categories in the consideration of relative risks and incidence rates of the diseases included in the model. The analysis was conducted from the healthcare system perspective, and a 3% discounting rate for costs and outcomes was applied. Model parameter values were sourced from published literature. Probabilistic and deterministic sensitivity analyses assessed robustness. RESULTS Among the smoking cessation alternatives available in Brazil, varenicline and combined NRT were estimated to have higher effectiveness; varenicline, however, was dominated due to its higher average cost. In the base-case analysis, combined NRT had an incremental gain of 0.25 quality-adjusted life-years (QALYs) in comparison to the second-best option (bupropion in combination with NRT transdermal patch) and an incremental cost-effectiveness ratio of R$2173.47/QALY ($595.45/QALY). CONCLUSIONS Combination of oral and transdermal NRT (coupled with CBT) was the most effective smoking cessation option and was 100% cost-effective within a conservative willingness-to-pay threshold.
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Affiliation(s)
| | - Brayan Viegas Seixas
- Department of Health Policy and Management, University of California, Los Angeles (UCLA), Los Angeles, CA, USA.
| | - André Salem Szklo
- Brazilian National Cancer Institute (INCA), Rio de Janeiro, RJ, Brazil
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Devresse A, Gohy S, Robert A, Kanaan N. How to manage cigarette smoking in kidney transplant candidates and recipients? Clin Kidney J 2021; 14:2295-2303. [PMID: 34754426 PMCID: PMC8572985 DOI: 10.1093/ckj/sfab072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/19/2021] [Indexed: 01/15/2023] Open
Abstract
Tobacco smoking is a frequent problem affecting many kidney transplant (KT) candidates and recipients. The negative impact of active smoking on KT outcomes has been demonstrated. Consequently, most guidelines strongly recommend quitting smoking before considering kidney transplantation. However, nicotine addiction is a complex multifactorial disease and only 3–5% of the patients who try to quit by themselves achieve prolonged abstinence. Smoking cessation programmes (SCPs) have proven their efficacy in the general population to increase the rate of quitting and should therefore be proposed to all smoking KT candidates and recipients. Nevertheless, SCPs have not been evaluated in the KT field and not all KT centres have easy access to these programmes. In this work, we aim to review the current knowledge on the subject and provide an overview of the available interventions to help smoking patients quit. We detail non-pharmaceutical and pharmaceutical approaches and discuss their use in KT candidates and recipients.
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Affiliation(s)
- Arnaud Devresse
- Nephrology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Sophie Gohy
- Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Arnaud Robert
- Nephrology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Nada Kanaan
- Nephrology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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