NCT01314001

Brief Summary

The purpose of this research program is to understand how a biomarker called the "nicotine metabolite ratio" (also referred to as NMR) may influence a smoker's ability to quit smoking.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,246

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Dec 2010

Typical duration for phase_3

Geographic Reach
2 countries

4 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2010

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 10, 2011

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 14, 2011

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2013

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2014

Completed
1.5 years until next milestone

Results Posted

Study results publicly available

March 3, 2016

Completed
Last Updated

March 3, 2016

Status Verified

February 1, 2016

Enrollment Period

3 years

First QC Date

March 10, 2011

Results QC Date

January 4, 2016

Last Update Submit

February 3, 2016

Conditions

Keywords

Tobacco, Smoking, Varenicline, Nicotine Patch

Outcome Measures

Primary Outcomes (1)

  • 7-day Point Prevalence Quit Rate at End-of-Treatment (EOT)

    The percentage of ITT subjects who were verified as abstinent. Abstinence was defined as no self-reported smoking (not even a puff) for at least 7 days before the telephone assessment, with in-person verification for those self-reporting abstinence. In-person verification consisted of breath carbon monoxide analysis, with a reading of 8 parts-per-million or less confirming abstinence. Subjects who were lost to follow-up were considered smokers.

    Week 11

Secondary Outcomes (5)

  • 7-day Point Prevalence Quit Rate at 6-month Follow up Survey

    Week 24

  • Total Side-Effect Severity Index at Pre-Quit

    Pre-Quit (Week -1/Baseline)

  • Total Side-Effect Severity Index at Target Quit Date

    Target Quit Date (Week 0)

  • Total Side-Effect Severity Index at Week 1

    Week 1

  • Total Side-Effect Severity Index at Week 4

    Week 4

Study Arms (6)

Placebo (Slow Metabolizers)

PLACEBO COMPARATOR

Subjects in this arm are those identified as slow metabolizers of nicotine (based on their NMR) and will take placebo pills daily for twelve weeks \& wear a placebo patch daily for eleven weeks. The placebo pill will look identical to the active varenicline tablets; however, they will not contain any active medication. Subjects will follow the same drug regimen as those in the active varenicline arm. The placebo patch will look identical to the active transdermal nicotine patches; however, they do not contain actual nicotine. Subjects will follow the same regimen as those in the active transdermal nicotine arm. All subjects in this arm will receive smoking cessation counseling during their sessions.

Drug: Placebo

Varenicline (Slow Metabolizers)

ACTIVE COMPARATOR

Subjects in this arm are those identified as slow metabolizers of nicotine (based on their NMR) and will take active varenicline pills daily for twelve weeks \& wear a placebo patch daily for eleven weeks. When taking the active varenicline, subjects will follow the same treatment regimen per the manufacturer. The placebo patch will look identical to the active transdermal nicotine patches; however, they do not contain actual nicotine. Subjects will follow the same regimen as those in the active transdermal nicotine arm. All subjects in this arm will receive smoking cessation counseling during their sessions.

Drug: Varenicline

Transdermal Nicotine (Slow Metabolizers)

ACTIVE COMPARATOR

Subjects in this arm are those identified as slow metabolizers of nicotine (based on their NMR) and will take placebo pills daily for twelve weeks \& will wear an active transdermal nicotine patch daily for eleven weeks. The placebo pill will look identical to the active varenicline tablets; however, they will not contain any active medication. Subjects will follow the same drug regimen as those in the active varenicline arm. When wearing the active transdermal nicotine, subjects will follow the same treatment regimen per the manufacturer. All subjects in this arm will receive smoking cessation counseling during their sessions.

Drug: Transdermal Nicotine

Placebo (Normal Metabolizers)

PLACEBO COMPARATOR

Subjects in this arm are those identified as normal metabolizers of nicotine (based on their NMR) and will take placebo pills daily for twelve weeks \& wear a placebo patch daily for eleven weeks. The placebo pill will look identical to the active varenicline tablets; however, they will not contain any active medication. Subjects will follow the same drug regimen as those in the active varenicline arm. The placebo patch will look identical to the active transdermal nicotine patches; however, they do not contain actual nicotine. Subjects will follow the same regimen as those in the active transdermal nicotine arm. All subjects in this arm will receive smoking cessation counseling during their sessions.

Drug: Placebo

Varenicline (Normal Metabolizers)

ACTIVE COMPARATOR

Subjects in this arm are those identified as normal metabolizers of nicotine (based on their NMR) and will take active varenicline pills daily for twelve weeks \& wear a placebo patch daily for eleven weeks. When taking the active varenicline, subjects will follow the same treatment regimen per the manufacturer. The placebo patch will look identical to the active transdermal nicotine patches; however, they do not contain actual nicotine. Subjects will follow the same regimen as those in the active transdermal nicotine arm. All subjects in this arm will receive smoking cessation counseling during their sessions.

Drug: Varenicline

Transdermal Nicotine (Normal Metabolizers)

ACTIVE COMPARATOR

Subjects in this arm are those identified as normal metabolizers of nicotine (based on their NMR) and will take placebo pills daily for twelve weeks \& will wear an active transdermal nicotine patch daily for eleven weeks. The placebo pill will look identical to the active varenicline tablets; however, they will not contain any active medication. Subjects will follow the same drug regimen as those in the active varenicline arm. When wearing the active transdermal nicotine, subjects will follow the same treatment regimen per the manufacturer. All subjects in this arm will receive smoking cessation counseling during their sessions.

Drug: Transdermal Nicotine

Interventions

Day 1-3: 0.5mg once daily orally Day 4-7: 0.5mg twice daily orally Day 8-84: 1.0mg twice daily orally

Also known as: Chantix
Varenicline (Normal Metabolizers)Varenicline (Slow Metabolizers)

Day 1-3: 0.5mg once daily orally Day 4-7: 0.5mg twice daily orally Day 8-84: 1.0mg twice daily orally Week 1 - 6: 21mg placebo patch Week 7 - 8: 14mg placebo patch Week 9 - 11: 7mg placebo patch

Also known as: Placebo pills, Placebo patches
Placebo (Normal Metabolizers)Placebo (Slow Metabolizers)

Week 1-6: 21mg nicotine patch Week 7-8: 14mg nicotine patch Week 9-11: 7mg nicotine patch

Also known as: Nicoderm CQ, Nicotine Patch
Transdermal Nicotine (Normal Metabolizers)Transdermal Nicotine (Slow Metabolizers)

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Eligible participants will be males and females
  • Between the ages of 18-65.
  • Smoke at least 10 cigarettes/day for the past 6 months.
  • Provide a baseline Carbon Monoxide (CO) reading greater than 10ppm at the Intake Session.
  • Are seeking smoking cessation treatment.
  • Plan to live in the area for the next 12 months.
  • Fluent English speaker.
  • Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the combined consent and Health Insurance Portability and Accountability Act (HIPAA) form. All subjects must consent to use a medically accepted method of birth control (e.g., condoms and spermicide, oral contraceptive, Depo-Provera injection, contraceptive patch, tubal ligation) or abstain from sexual intercourse during the time they are taking study medication (pills and patches) and for at least one month after the medication period ends. All female subjects of child-bearing potential should not be pregnant for the duration of the study.

You may not qualify if:

  • Smoking Behavior
  • Regular (daily) use of chewing tobacco, snuff or snus.
  • Current enrollment or plans to enroll in another smoking cessation or research program in the next 12 months.
  • Plan to use other nicotine substitutes or smoking cessation treatments in the next 12 months.
  • Provide a baseline CO reading less than or equal to 10ppm at the Intake Session.
  • History (within the last year) or currently receiving treatment for substance abuse (e.g., alcohol, opioids, cocaine, marijuana, or stimulants), excluding nicotine.
  • Current use of cocaine and/or methamphetamines (urine drug screen at the Intake Session).
  • Current alcohol consumption that exceeds greater than 25 standard drinks/week.
  • Current alcohol abuse or dependence.
  • Current non-alcoholic psychoactive substance abuse or dependence.
  • Women who are pregnant, planning a pregnancy, or lactating.
  • History of epilepsy or a seizure disorder.
  • Current medical problems for which transdermal nicotine is contraindicated including:
  • Allergy to latex.
  • History of kidney and/or liver disease, including transplant (self-report).
  • +24 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

University at Buffalo - State University of New York

Buffalo, New York, 14260, United States

Location

Center for Interdisciplinary Research on Nicotine Addiction, University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

MD Anderson Cancer Center, University of Texas

Houston, Texas, 77230, United States

Location

Centre for Addiction and Mental Health, University of Toronto

Toronto, Ontario, M5T1RH, Canada

Location

Related Publications (13)

  • Tonkin SS, Betts JM, Dowd AN, Mahoney MC, Cinciripini PM, Schnoll RA, George TP, Tyndale RF, Hawk LW Jr. Daily Cigarette Abstinence and Smoking Rate With Varenicline: Relationships With Treatment, Craving, and Affect During the First Week of the Quit Attempt. Nicotine Tob Res. 2025 Nov 23;27(12):2328-2332. doi: 10.1093/ntr/ntaf095.

  • Chenoweth MJ, Kim YJ, Nollen NL, Hawk LW Jr, Mahoney MC, Lerman C, Knight J, Tyndale RF. Genetic Prediction of Smoking Cessation Medication Side Effects: A Genome-Wide Investigation of Abnormal Dreams on Varenicline. Clin Pharmacol Ther. 2024 Jun;115(6):1277-1281. doi: 10.1002/cpt.3210. Epub 2024 Feb 19.

  • Chenoweth MJ, Lerman C, Knight J, Tyndale RF. Influence of CYP2A6 Genetic Variation, Nicotine Dependence Severity, and Treatment on Smoking Cessation Success. Nicotine Tob Res. 2023 May 22;25(6):1207-1211. doi: 10.1093/ntr/ntac268.

  • Tonkin SS, Colder C, Mahoney MC, Swan GE, Cinciripini P, Schnoll R, George TP, Tyndale RF, Hawk LW. Evaluating Treatment Mechanisms of Varenicline: Mediation by Affect and Craving. Nicotine Tob Res. 2022 Oct 26;24(11):1803-1810. doi: 10.1093/ntr/ntac138.

  • Chenoweth MJ, Lerman C, Knight J, Tyndale RF. A Genome-Wide Association Study of Nausea Incidence in Varenicline-Treated Cigarette Smokers. Nicotine Tob Res. 2021 Aug 29;23(10):1805-1809. doi: 10.1093/ntr/ntab044.

  • El-Boraie A, Chenoweth MJ, Pouget JG, Benowitz NL, Fukunaga K, Mushiroda T, Kubo M, Nollen NL, Sanderson Cox L, Lerman C, Knight J, Tyndale RF. Transferability of Ancestry-Specific and Cross-Ancestry CYP2A6 Activity Genetic Risk Scores in African and European Populations. Clin Pharmacol Ther. 2021 Oct;110(4):975-985. doi: 10.1002/cpt.2135. Epub 2021 Jan 1.

  • Peng AR, Swardfager W, Benowitz NL, Ahluwalia JS, Lerman C, Nollen NL, Tyndale RF. Impact of early nausea on varenicline adherence and smoking cessation. Addiction. 2020 Jan;115(1):134-144. doi: 10.1111/add.14810. Epub 2019 Nov 5.

  • Ashare RL, Thompson M, Leone F, Metzger D, Gross R, Mounzer K, Tyndale RF, Lerman C, Mahoney MC, Cinciripini P, George TP, Collman RG, Schnoll R. Differences in the rate of nicotine metabolism among smokers with and without HIV. AIDS. 2019 May 1;33(6):1083-1088. doi: 10.1097/QAD.0000000000002127.

  • Robinson JD, Li L, Chen M, Lerman C, Tyndale RF, Schnoll RA, Hawk LW, George TP, Benowitz NL, Cinciripini PM. Evaluating the temporal relationships between withdrawal symptoms and smoking relapse. Psychol Addict Behav. 2019 Mar;33(2):105-116. doi: 10.1037/adb0000434. Epub 2019 Jan 7.

  • Peng AR, Schnoll R, Hawk LW Jr, Cinciripini P, George TP, Lerman C, Tyndale RF. Predicting smoking abstinence with biological and self-report measures of adherence to varenicline: Impact on pharmacogenetic trial outcomes. Drug Alcohol Depend. 2018 Sep 1;190:72-81. doi: 10.1016/j.drugalcdep.2018.04.035. Epub 2018 Jun 26.

  • Hamilton DA, Mahoney MC, Novalen M, Chenoweth MJ, Heitjan DF, Lerman C, Tyndale RF, Hawk LW Jr. Test-Retest Reliability and Stability of the Nicotine Metabolite Ratio Among Treatment-Seeking Smokers. Nicotine Tob Res. 2015 Dec;17(12):1505-9. doi: 10.1093/ntr/ntv031. Epub 2015 Mar 1.

  • Lerman C, Schnoll RA, Hawk LW Jr, Cinciripini P, George TP, Wileyto EP, Swan GE, Benowitz NL, Heitjan DF, Tyndale RF; PGRN-PNAT Research Group. Use of the nicotine metabolite ratio as a genetically informed biomarker of response to nicotine patch or varenicline for smoking cessation: a randomised, double-blind placebo-controlled trial. Lancet Respir Med. 2015 Feb;3(2):131-138. doi: 10.1016/S2213-2600(14)70294-2. Epub 2015 Jan 12.

  • Chenoweth MJ, Novalen M, Hawk LW Jr, Schnoll RA, George TP, Cinciripini PM, Lerman C, Tyndale RF. Known and novel sources of variability in the nicotine metabolite ratio in a large sample of treatment-seeking smokers. Cancer Epidemiol Biomarkers Prev. 2014 Sep;23(9):1773-82. doi: 10.1158/1055-9965.EPI-14-0427. Epub 2014 Jul 10.

MeSH Terms

Conditions

Tobacco Use DisorderSmoking

Interventions

VareniclineTobacco Use Cessation DevicesNicotine

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental DisordersBehavior

Intervention Hierarchy (Ancestors)

BenzazepinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsQuinoxalinesTherapeuticsSolanaceous AlkaloidsAlkaloidsPyridinesHeterocyclic Compounds, 1-Ring

Limitations and Caveats

A limitation is that few Hispanics or Asians were included.

Results Point of Contact

Title
Paul M. Sanborn, M.S.
Organization
University of Pennsylvania

Study Officials

  • Caryn Lerman, PhD

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR
  • Rachel F Tyndale, PhD

    University of Toronto

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 10, 2011

First Posted

March 14, 2011

Study Start

December 1, 2010

Primary Completion

December 1, 2013

Study Completion

September 1, 2014

Last Updated

March 3, 2016

Results First Posted

March 3, 2016

Record last verified: 2016-02

Locations