The ESTxENDS Trial- Substudy on the Effects of Using Electronic Nicotine Delivery Systems (ENDS) on Depression
NCT ID: NCT03603340
Last Updated: 2023-11-15
Study Results
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Basic Information
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COMPLETED
NA
1246 participants
INTERVENTIONAL
2018-07-16
2023-08-31
Brief Summary
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Cigarette smoking is the leading cause of preventable death in Switzerland and still more than a quarter of the Swiss population smokes cigarettes. Smoking and depression are strongly associated. Individuals with depression are twice as likely to be smokers than persons without a depression. Studies have shown that attempts to quit tobacco smoking are more likely to fail for individuals with depression than without. Depressive symptoms are common in prolonged nicotine withdrawal and individuals with depression are more nicotine dependent and more likely to suffer depressive symptoms during nicotine withdrawal compared to smokers in the general population.
Recently, electronic nicotine delivery systems (ENDS; also called vaporizer or electronic cigarette) have become popular with smokers who want to stop smoking or reduce their exposure to inhaled chemicals since ENDS use appears to be safer than tobacco smoking. ENDS with nicotine containing e-liquids may be effective in assisting with tobacco smoking cessation without suffering depressive symptoms.
This study will therefore test the efficacy of ENDS for cigarette smoking cessation, the safety of ENDS on adverse events and the effect of ENDS on health-related outcomes such as depression and exposure to inhaled chemicals.
For the main ESTxENDS trial (NCT03589989), cigarette smokers motivated to quit smoking cigarettes will be included. Participants in the intervention group will receive an ENDS and nicotine-containing e-liquids, which they will be allowed to use ad libitum. Additionally, they will receive smoking cessation counseling. Participants in the control group will receive smoking cessation counseling only. All participants will be followed over a 24-month period. Presence and severity of depression will be assessed using the 9-question depression scale from the patient health questionnaire (PHQ-9) at baseline and at 6, 12 and 24 months' follow-up.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Intervention group
ENDS (vaporizer/e-cig) and smoking cessation counseling
Participants in the intervention group will receive an ENDS and nicotine-containing e-liquids, which they will be allowed to use ad libitum. Additionally, they will receive smoking cessation counseling. Participants will be allowed to additionally use nicotine replacement therapy. All participants will be followed over a 24-month period. Smoking cessation counseling will be provided in person at the first clinical visit and then over the phone at the target quit date one week later and again at week 2, 4 and 8 after the target quit date. After 6, 12 and 24 months, participants will be asked to come to a clinical visit.
Control group
Smoking cessation counseling
Participants in the control group will receive smoking cessation counseling only. Participants will be allowed to additionally use nicotine replacement therapy. All participants will be followed over a 24-month period. Smoking cessation counseling will be provided in person at the first clinical visit and then over the phone at the target quit date one week later and again at week 2, 4 and 8 after the target quit date. After 6, 12 and 24 months, participants will be asked to come to a clinical visit.
Interventions
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ENDS (vaporizer/e-cig) and smoking cessation counseling
Participants in the intervention group will receive an ENDS and nicotine-containing e-liquids, which they will be allowed to use ad libitum. Additionally, they will receive smoking cessation counseling. Participants will be allowed to additionally use nicotine replacement therapy. All participants will be followed over a 24-month period. Smoking cessation counseling will be provided in person at the first clinical visit and then over the phone at the target quit date one week later and again at week 2, 4 and 8 after the target quit date. After 6, 12 and 24 months, participants will be asked to come to a clinical visit.
Smoking cessation counseling
Participants in the control group will receive smoking cessation counseling only. Participants will be allowed to additionally use nicotine replacement therapy. All participants will be followed over a 24-month period. Smoking cessation counseling will be provided in person at the first clinical visit and then over the phone at the target quit date one week later and again at week 2, 4 and 8 after the target quit date. After 6, 12 and 24 months, participants will be asked to come to a clinical visit.
Eligibility Criteria
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Inclusion Criteria
* Persons aged 18 or older
* Currently smoking 5 or more cigarettes a day for at least 12 months
* Willing to try to quit smoking within the next 3 months,
* Persons providing a valid phone number, a valid email address and/or a valid postal address.
Exclusion Criteria
* Participation in another study with investigational drug within the 30 days preceding the baseline visit and during the present study where interactions are to be expected
* Women who are pregnant or breast feeding
* Intention to become pregnant during the course of the scheduled study intervention, i.e. within the first 6-months of the study
* Persons having used ENDS or tobacco heating systems regularly in the 3 months preceding the baseline visit
* Persons having used nicotine replacement therapy (NRT) or other medications with demonstrated efficacy as an aid for smoking cessation such as varenicline or bupropion within the 3 months preceding the baseline visit
* Persons who cannot attend the 6- month follow-up visit for any reason
* Cannot understand instructions delivered in person or by phone, or otherwise unable to participate in study procedures
18 Years
ALL
Yes
Sponsors
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University of Lausanne
OTHER
University of Geneva, Switzerland
OTHER
University of Zurich
OTHER
State Hospital, St. Gallen
OTHER_GOV
Swiss National Science Foundation
OTHER
Krebsforschung Schweiz, Bern, Switzerland
OTHER
Federal Office of Public Health, Switzerland
OTHER_GOV
University of Bern
OTHER
Responsible Party
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Principal Investigators
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Reto Auer, Prof.Dr.med
Role: STUDY_DIRECTOR
Berner Institut für Hausarztmedizin (BIHAM)
Locations
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Unisanté, Centre universitaire de médecine générale et santé publique, Université de Lausanne
Lausanne, Canton of Vaud, Switzerland
University Clinic for General Internal Medicine, Bern University Hospital
Bern, , Switzerland
Département de médecine interne, Hôpitaux universitaires de Genève
Geneva, , Switzerland
Lungenzentrum, Klinik für Pneumologie und Schlafmedizin, Kantonsspital St. Gallen
Sankt Gallen, , Switzerland
Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich
Zurich, , Switzerland
Countries
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References
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Hall SM, Humfleet GL, Munoz RF, Reus VI, Robbins JA, Prochaska JJ. Extended treatment of older cigarette smokers. Addiction. 2009 Jun;104(6):1043-52. doi: 10.1111/j.1360-0443.2009.02548.x. Epub 2009 Apr 9.
Kalman D, Morissette SB, George TP. Co-morbidity of smoking in patients with psychiatric and substance use disorders. Am J Addict. 2005 Mar-Apr;14(2):106-23. doi: 10.1080/10550490590924728.
Lasser K, Boyd JW, Woolhandler S, Himmelstein DU, McCormick D, Bor DH. Smoking and mental illness: A population-based prevalence study. JAMA. 2000 Nov 22-29;284(20):2606-10. doi: 10.1001/jama.284.20.2606.
Ziedonis D, Hitsman B, Beckham JC, Zvolensky M, Adler LE, Audrain-McGovern J, Breslau N, Brown RA, George TP, Williams J, Calhoun PS, Riley WT. Tobacco use and cessation in psychiatric disorders: National Institute of Mental Health report. Nicotine Tob Res. 2008 Dec;10(12):1691-715. doi: 10.1080/14622200802443569.
Glassman AH. Cigarette smoking: implications for psychiatric illness. Am J Psychiatry. 1993 Apr;150(4):546-53. doi: 10.1176/ajp.150.4.546.
Weinberger AH, Pilver CE, Desai RA, Mazure CM, McKee SA. The relationship of major depressive disorder and gender to changes in smoking for current and former smokers: longitudinal evaluation in the US population. Addiction. 2012 Oct;107(10):1847-56. doi: 10.1111/j.1360-0443.2012.03889.x. Epub 2012 May 17.
Bolam B, West R, Gunnell D. Does smoking cessation cause depression and anxiety? Findings from the ATTEMPT cohort. Nicotine Tob Res. 2011 Mar;13(3):209-14. doi: 10.1093/ntr/ntq244. Epub 2011 Feb 17.
Gierisch JM, Bastian LA, Calhoun PS, McDuffie JR, Williams JW Jr. Smoking cessation interventions for patients with depression: a systematic review and meta-analysis. J Gen Intern Med. 2012 Mar;27(3):351-60. doi: 10.1007/s11606-011-1915-2. Epub 2011 Oct 26.
Weinberger AH, Mazure CM, Morlett A, McKee SA. Two decades of smoking cessation treatment research on smokers with depression: 1990-2010. Nicotine Tob Res. 2013 Jun;15(6):1014-31. doi: 10.1093/ntr/nts213. Epub 2012 Oct 25.
Rihs A, Schoeni A, Scharf T, Jakob J, Tal K, Jacot-Sadowski I, Humair JP, Frei A, Brutsche M, Rodondi N, Auer R, Baggio S. Effect of e-cigarettes for smoking cessation on depressive and anxiety symptoms: Secondary analysis of a randomized controlled trial. Gen Hosp Psychiatry. 2025 Mar-Apr;93:67-72. doi: 10.1016/j.genhosppsych.2025.01.011. Epub 2025 Jan 16.
Other Identifiers
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2017-02332f
Identifier Type: -
Identifier Source: org_study_id
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