N-acetylcysteine for therapy-resistant tobacco use disorder: a pilot study

Prado, Eduardo, Maes, Michael, Piccoli, Luiz Gustavo, Baracat, Marcela, Barbosa, Décio Sabattini, Franco, Olavo, Dodd, Seetal, Berk, Michael and Vargas Nunes, Sandra Odebrecht 2015, N-acetylcysteine for therapy-resistant tobacco use disorder: a pilot study, Redox report, doi: 10.1179/1351000215Y.0000000004.

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Title N-acetylcysteine for therapy-resistant tobacco use disorder: a pilot study
Author(s) Prado, Eduardo
Maes, Michael
Piccoli, Luiz Gustavo
Baracat, Marcela
Barbosa, Décio Sabattini
Franco, Olavo
Dodd, Seetal
Berk, MichaelORCID iD for Berk, Michael orcid.org/0000-0002-5554-6946
Vargas Nunes, Sandra Odebrecht
Journal name Redox report
Publisher Maney Publishing
Place of publication Edinburgh, Scotland
Publication date 2015-03
ISSN 1743-2928
Keyword(s) Depression
Oxidative stress
Smoking cessation
Summary Introduction N-Acetylcysteine (NAC) may have efficacy in treating tobacco use disorder (TUD) by reducing craving and smoking reward. This study examines whether treatment with NAC may have a clinical efficacy in the treatment of TUD. Methods A 12-week double blind randomized controlled trial was conducted to compare the clinical efficacy of NAC 3 g/day versus placebo. We recruited 34 outpatients with therapy resistant TUD concurrently treated with smoking-focused group behavioral therapy. Participants had assessments of daily cigarette use (primary outcome), exhaled carbon monoxide (COEXH) (secondary outcome), and quit rates as defined by COEXH<6 ppm. Depression was measured with the Hamilton Depression Rating Scale (HDRS). Data were analyzed using conventional and modified intention-to-treat endpoint analyses. Results NAC treatment significantly reduced the daily number of cigarettes used (Δ mean±SD = -10.9 ± 7.9 in the NAC-treated versus -3.2 ± 6.1 in the placebo group) and COEXH (Δ mean± SD = -10.4 ± 8.6 ppm in the NAC-treated versus -1.5 ± 4.5 ppm in the placebo group); 47.1% of those treated with NAC versus 21.4% of placebo-treated patients were able to quit smoking as defined by COEXH<6 ppm. NAC treatment significantly reduced the HDRS score in patients with tobacco use disorder. Conclusions These data show that treatment with NAC may have a clinical efficacy in TUD. NAC combined with appropriate psychotherapy appears to be an efficient treatment option for TUD.
Language eng
DOI 10.1179/1351000215Y.0000000004
Field of Research 110319 Psychiatry (incl Psychotherapy)
Socio Economic Objective 920410 Mental Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, Maney Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070216

Document type: Journal Article
Collections: Faculty of Health
School of Medicine
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