Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.

The behavioural impact of pharmacogenomics is untested. We tested two hypotheses concerning the behavioural impact of informing smokers their oral dose of NRT is tailored to analysis of DNA.We conducted an RCT with smokers in smoking cessation clinics (N = 633). In combination with NRT patch, partic...

Full description

Bibliographic Details
Main Authors: Theresa M Marteau, Paul Aveyard, Marcus R Munafò, A Toby Prevost, Gareth J Hollands, David Armstrong, Stephen Sutton, Chloe Hill, Elaine Johnstone, Ann Louise Kinmonth
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3324463?pdf=render
_version_ 1830508863988695040
author Theresa M Marteau
Paul Aveyard
Marcus R Munafò
A Toby Prevost
Gareth J Hollands
David Armstrong
Stephen Sutton
Chloe Hill
Elaine Johnstone
Ann Louise Kinmonth
author_facet Theresa M Marteau
Paul Aveyard
Marcus R Munafò
A Toby Prevost
Gareth J Hollands
David Armstrong
Stephen Sutton
Chloe Hill
Elaine Johnstone
Ann Louise Kinmonth
author_sort Theresa M Marteau
collection DOAJ
description The behavioural impact of pharmacogenomics is untested. We tested two hypotheses concerning the behavioural impact of informing smokers their oral dose of NRT is tailored to analysis of DNA.We conducted an RCT with smokers in smoking cessation clinics (N = 633). In combination with NRT patch, participants were informed that their doses of oral NRT were based either on their mu-opioid receptor (OPRM1) genotype, or their nicotine dependence questionnaire score (phenotype). The proportion of prescribed NRT consumed in the first 28 days following quitting was not significantly different between groups: (68.5% of prescribed NRT consumed in genotype vs 63.6%, phenotype group, difference = 5.0%, 95% CI -0.9,10.8, p = 0.098). Motivation to make another quit attempt among those (n = 331) not abstinent at six months was not significantly different between groups (p = 0.23). Abstinence at 28 days was not different between groups (p = 0.67); at six months was greater in genotype than phenotype group (13.7% vs 7.9%, difference = 5.8%, 95% CI 1.0,10.7, p = 0.018).Informing smokers their oral dose of NRT was tailored to genotype not phenotype had a small, statistically non-significant effect on 28-day adherence to NRT. Among those still smoking at six months, there was no evidence that saying NRT was tailored to genotype adversely affected motivation to make another quit attempt. Higher abstinence rate at six months in the genotype arm requires investigation.Controlled-Trials.com ISRCTN14352545.
first_indexed 2024-12-22T01:25:32Z
format Article
id doaj.art-46f873e99fe345c99b79f912e96eb46f
institution Directory Open Access Journal
issn 1932-6203
language English
last_indexed 2024-12-22T01:25:32Z
publishDate 2012-01-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS ONE
spelling doaj.art-46f873e99fe345c99b79f912e96eb46f2022-12-21T18:43:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0174e3524910.1371/journal.pone.0035249Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.Theresa M MarteauPaul AveyardMarcus R MunafòA Toby PrevostGareth J HollandsDavid ArmstrongStephen SuttonChloe HillElaine JohnstoneAnn Louise KinmonthThe behavioural impact of pharmacogenomics is untested. We tested two hypotheses concerning the behavioural impact of informing smokers their oral dose of NRT is tailored to analysis of DNA.We conducted an RCT with smokers in smoking cessation clinics (N = 633). In combination with NRT patch, participants were informed that their doses of oral NRT were based either on their mu-opioid receptor (OPRM1) genotype, or their nicotine dependence questionnaire score (phenotype). The proportion of prescribed NRT consumed in the first 28 days following quitting was not significantly different between groups: (68.5% of prescribed NRT consumed in genotype vs 63.6%, phenotype group, difference = 5.0%, 95% CI -0.9,10.8, p = 0.098). Motivation to make another quit attempt among those (n = 331) not abstinent at six months was not significantly different between groups (p = 0.23). Abstinence at 28 days was not different between groups (p = 0.67); at six months was greater in genotype than phenotype group (13.7% vs 7.9%, difference = 5.8%, 95% CI 1.0,10.7, p = 0.018).Informing smokers their oral dose of NRT was tailored to genotype not phenotype had a small, statistically non-significant effect on 28-day adherence to NRT. Among those still smoking at six months, there was no evidence that saying NRT was tailored to genotype adversely affected motivation to make another quit attempt. Higher abstinence rate at six months in the genotype arm requires investigation.Controlled-Trials.com ISRCTN14352545.http://europepmc.org/articles/PMC3324463?pdf=render
spellingShingle Theresa M Marteau
Paul Aveyard
Marcus R Munafò
A Toby Prevost
Gareth J Hollands
David Armstrong
Stephen Sutton
Chloe Hill
Elaine Johnstone
Ann Louise Kinmonth
Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.
PLoS ONE
title Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.
title_full Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.
title_fullStr Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.
title_full_unstemmed Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.
title_short Effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype: a randomised controlled trial.
title_sort effect on adherence to nicotine replacement therapy of informing smokers their dose is determined by their genotype a randomised controlled trial
url http://europepmc.org/articles/PMC3324463?pdf=render
work_keys_str_mv AT theresammarteau effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT paulaveyard effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT marcusrmunafo effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT atobyprevost effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT garethjhollands effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT davidarmstrong effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT stephensutton effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT chloehill effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT elainejohnstone effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial
AT annlouisekinmonth effectonadherencetonicotinereplacementtherapyofinformingsmokerstheirdoseisdeterminedbytheirgenotypearandomisedcontrolledtrial