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CompletedNCT01184664CONVICTUpdated Oct 11, 2012

Combination of Nicotine Replacement Therapy (NRT) and Varenicline to Increase Cessation of Tobacco (CONVICT Study)

A Phase 3 interventional study of Nicotine Patch and Placebo in Tobacco Dependence and Smoking Cessation, sponsored by Queen Mary University of London. Completed at 2 sites in United Kingdom. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-10-11.

Sponsored by Queen Mary University of London · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
117
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Varenicline and nicotine replacement therapy (NRT) are both effective smoking cessation treatments. Anecdotally smokers who are finding their quit attempt difficult have reported benefiting from adding NRT to varenicline. This proof-of-principle placebo-controlled double-blind study will examine whether combining NRT and varenicline provides better withdrawal and craving relief than varenicline alone. A total of 120 smokers would be randomised to receive varenicline +15mg/16hr patch or varenicline + placebo patch. All participants will receive standard NHS Stop Smoking Service support. The primary outcome would be ratings of craving and withdrawal discomfort 24 hours and one week after the target quit date.

02

Conditions studied

  • Tobacco Dependence
  • Smoking Cessation

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Keywords

  • Smoking cessation
  • Tobacco dependence
  • Varenicline
  • Nicotine Replacement Therapy
  • Combination therapy
03

In context

Tobacco Use Disorder

968 studies on the registry are indexed under Tobacco Use Disorder; 126 are open to participants now.

This study's enrollment of 117 is above the median of 89 across 851 interventional studies indexed under Tobacco Use Disorder.

Browse Tobacco Use Disorder studies →

Lead sponsor

Queen Mary University of London is the lead sponsor of 250 studies on the registry; 59 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Smokers seeking treatment
  • Aged 18 and over
  • Consenting to take part in the trial

Exclusion criteria

Exclusion Criteria:

  • Pregnant or breastfeeding
  • End-stage renal disease
  • Unable to fill in questionnaires in English
  • Previous allergy to Varenicline
  • Previous allergy to Nicotine Patches Previous allergy to varenicline
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
117 participants (actual)

Study arms

  • Experimental
    Varenicline + Active Patch

    Participants will use varenicline (1mg BD) + an active, 15mg/16hr Nicotine Patch

    Drug: Nicotine Patch · Drug: Varenicline

  • Placebo comparator
    Varenicline + Placebo Patch

    Participants will use varenicline (1mg BD) + a Placebo Nicotine Patch

    Drug: Placebo · Drug: Varenicline

Interventions

  • DrugNicotine Patch

    Varenicline + nicotine patch

    Also known as: Champix, Chantix

  • DrugPlacebo

    Varenicline + placebo patch

    Also known as: Champix, Chantix

  • DrugVarenicline

    All participants will receive a standard dose of varenicline (12 weeks).

    Also known as: Champix, Chantix

06

What researchers measure

Primary outcomes

  1. Rating of urges to smoke one week after the target quit date assessed by Mood and Physical Symptoms Scale

    Rating of urges to smoke will be assessed using the Mood and Physical Symptoms Scale

    Time frame: 1 week

Secondary outcomes

  1. Validated abstinence rates over weeks 1-12 post target quit date

    Time frame: 12 weeks post target quit date

  2. Rating of withdrawal symptoms up to 4-weeks post quitting assessed by Mood and Physical Symptoms Scale

    Time frame: 4-weeks post quitting

  3. Profile of all adverse effects reported up to 12-weeks post quitting

    Time frame: Up to 12-weeks post quitting

  4. Ratings of urges to smoke 24 hours after the target quit date

    Urges to smoke at 24 hours after the target quit date will be assessed using the Mood \& Physical Symptoms Scale

    Time frame: 24 hours

07

Study locations

2 sites
  • Tobacco Dependence Research and Treatment Unit
    London, E1 2JH, United Kingdom
  • Tobacco Dependence Research Unit
    London, E1 2JH, United Kingdom
08

References and documents

Publications

  • Hajek P, Smith KM, Dhanji AR, McRobbie H. Is a combination of varenicline and nicotine patch more effective in helping smokers quit than varenicline alone? A randomised controlled trial. BMC Med. 2013 May 29;11:140. doi: 10.1186/1741-7015-11-140. PubMed 23718718 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 11, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01184664
Lead sponsor
Queen Mary University of London
Responsible party
Professor Peter Hajek (Professor of Clinical Psychology, Queen Mary University of London) — Principal investigator
First posted
Aug 19, 2010
Start date
Apr 2011
Primary completion
Oct 2011
Completion
Oct 2011
Last update
Oct 11, 2012

Study contacts

Al-Rehan A A Dhanji, MB BS BSc MRCS
principal investigator · Queen Mary University of London

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2012. You cannot join it, but the record below documents what was studied.

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