A Novel Treatment to Boost Quit Attempts and Cessation Among Unmotivated Smokers

NCT ID: NCT00706979

Last Updated: 2011-12-09

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

849 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-09-30

Study Completion Date

2010-10-31

Brief Summary

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A sample of smokers who have no current plans to quit will be recruited for this study and randomized to one of two intervention conditions:

1. Practice Quit Attempt (PQA) aided by brief advice and self-help materials, or
2. PQA aided by advice and self-help materials plus nicotine replacement therapy (NRT).

This study will test whether adding free nicotine replacement therapy to brief advice to undertake a practice quit attempt will motivate more smokers to make a serious attempt to stop smoking than brief advice without NRT. All treatments and assessments will be delivered via telephone and mailing. The primary outcome of interest is the incidence of a serious attempt to permanently stop smoking made over a six-month study period.

Our specific hypotheses are as follows:

Hypothesis 1: Helping smokers to make a practice quit attempt aided by NRT will result in a higher incidence of making a serious effort to quit smoking permanently, compared to an aided practice quit attempt without NRT. We also expect provision of NRT will increase point prevalence abstinence at 6 month follow-up.

Hypothesis 2: This relationship between NRT-aided practice quit attempts and quit behaviors will be mediated by a) increased smoking related self efficacy, b) increased belief in the efficacy of NRT, c) fewer concerns about adverse events of NRT, d) increased social support for not smoking, and e) less withdrawal distress and craving during the practice quit attempt.

Detailed Description

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Conditions

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Smoking Smoking Cessation

Keywords

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smoking smoking cessation nicotine replacement therapy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1

Practice Quit Attempt plus Nicotine Replacement Therapy

Group Type EXPERIMENTAL

Practice Quit Attempt plus nicotine lozenge

Intervention Type OTHER

nicotine lozenge, 2 mg or 4 mg

2

Practice Quit Attempt only

Group Type ACTIVE_COMPARATOR

Practice Quit Attempt only

Intervention Type BEHAVIORAL

Practice Quit Attempts (PQA) message aided by brief advice and self-help materials

Interventions

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Practice Quit Attempt plus nicotine lozenge

nicotine lozenge, 2 mg or 4 mg

Intervention Type OTHER

Practice Quit Attempt only

Practice Quit Attempts (PQA) message aided by brief advice and self-help materials

Intervention Type BEHAVIORAL

Other Intervention Names

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Nicotine lozenge Nicotine Replacement Therapy (NRT)

Eligibility Criteria

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Inclusion Criteria

* Current cigarette smoker of at least 10 cigarettes per day
* Interested in quitting at some time
* Not currently interested in quitting smoking
* Access to telephone (home or work) for 6 month study period

Exclusion Criteria

* Monthly cigar, pipe, or smokeless tobacco use
* Current pregnancy or breastfeeding
* Recent cardiovascular distress
* Phenylketonuria (PKU)
* Previous use of nicotine replacement therapy (gum, patch, lozenge, inhaler, or nasal spray)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute on Drug Abuse (NIDA)

NIH

Sponsor Role collaborator

Medical University of South Carolina

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Matthew J Carpenter, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Medical University of South Carolina

Countries

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United States

References

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Carpenter MJ, Hughes JR, Gray KM, Wahlquist AE, Saladin ME, Alberg AJ. Nicotine therapy sampling to induce quit attempts among smokers unmotivated to quit: a randomized clinical trial. Arch Intern Med. 2011 Nov 28;171(21):1901-7. doi: 10.1001/archinternmed.2011.492.

Reference Type DERIVED
PMID: 22123796 (View on PubMed)

Other Identifiers

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1R01DA021619-01A1

Identifier Type: NIH

Identifier Source: secondary_id

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1R01DA021619-01A1

Identifier Type: NIH

Identifier Source: org_study_id

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