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Tobacco Use DisorderNCT01378858

Varenicline Smoking Cessation Treatment for Methadone Maintenance Patients

A study testing Varenicline in people with Tobacco Use Disorder and Medication Adherence, run by Albert Einstein College of Medicine at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This randomized trial will evaluate whether varenicline directly observed therapy provided at a methadone clinic is more efficacious than self-administered varenicline for promoting smoking cessation and enhancing adherence. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Tobacco Use Disorder, Medication Adherence
What is being tested?
Varenicline
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteUnited States
Study dates
Jul 2011to Jul 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 18 years or older
  • English speaking
  • Smoked at least 100 cigarettes/lifetime
  • Smoke 5 or more cigarettes per day
  • Interested in quitting smoking (preparation or contemplation stage of change)
  • Enrolled in Einstein/Montefiore methadone program for 12 weeks or more
Show all 11Show fewer
  • Receiving methadone in clinic three, four, five or six times per week
  • No more than 2 methadone clinic misses in prior 14 days
  • Agree to use contraception for the duration of the trial (among women with reproductive potential)
  • Willing to participate in all study components
  • Able to provide informed consent

Who cannot join

  • Serious or unstable HIV/AIDS, liver, cardiovascular, or pulmonary disease
  • Psychiatric instability
  • Women who are pregnant, breastfeeding, or contemplating pregnancy
  • Creatinine clearance <30 mL/min

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Albert Einstein College of Medicine

    The Bronx, New York, 10467

Other trials in United States

About this study

This randomized trial will evaluate whether varenicline directly observed therapy provided at a methadone clinic is more efficacious than self-administered varenicline for promoting smoking cessation and enhancing adherence.

Read the detailed description

There is a marked prevalence of tobacco use and tobacco-related disease among methadone maintenance patients. Varenicline's demonstrated efficacy may not be generalizable to methadone maintained smokers because of poor adherence, which is highly prevalent among drug users. Adherence to smoking cessation medication is strongly associated with cessation, and is one of the few factors shown to increase cessation among methadone maintained smokers, but strategies to promote smoking cessation medication adherence have not been evaluated in methadone patients. Based on the Information, Motivation, and Behavior model, the investigators plan a directly observed therapy (DOT)-based intervention targeting behavioral skills necessary for optimal adherence. Because methadone clinic-based DOT interventions have been shown to improve medication adherence and clinical outcomes in HIV and TB, the investigators plan to determine in a randomized trial whether DOT varenicline provided at a methadone clinic is more efficacious than self-administered varenicline for promoting smoking cessation and enhancing adherence. The investigators will also evaluate moderating effects of drug and alcohol use and psychiatric symptoms on DOT effects. The investigators hypothesize subjects in the mDOT arm will have greater 7 day point prevalence abstinence at 12 weeks, reduction in cigarettes/day, time to first daily cigarette, ≥ 24 hour quit attempts, and 7 day point prevalence abstinence at 24 weeks compared to subjects receiving self administered varenicline. The investigators also hypothesize that adherence in the mDOT arm will be higher than in the TAU arm. Lastly the investigators hypothesize that ongoing illicit drug use and psychiatric symptoms will moderate the effect of mDOT on adherence.

Being tested
Varenicline
Keywords
Smoking, Substance-Related Disorders, medication adherence, Methadone
Medical subject headings
Tobacco Use Disorder, Medication Adherence, Smoking, Substance-Related Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VareniclineDrug

    Also called Chantix

    Varenicline, titrated to 1 mg twice daily, will be given to participants in both study arms for 12 weeks.

Study groups in NCT01378858
Study groupRoleWhat they receive
Varenicline treatment as usual (TAU)ExperimentalSubjects in the TAU arm will self administer varenicline for 12 weeks.
Receives: Drug: Varenicline
Varenicline directly observed therapyExperimentalSubjects in the directly observed therapy (DOT) arm will receive varenicline directly administered by methadone clinic nurses 4-6 times per week at the same time as they receive methadone, as well as individually packaged take-home doses for self administration on evenings/weekends.
Receives: Drug: Varenicline

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Varenicline Adherence as Measured by Pill Count

    Pill count adherence, measured as pills taken divided by pills dispensed, analyzed as a continuous measure

    Measured: Weeks 0-1, 1-2, 2-3, 4-6, 7-9, 10-12

Secondary outcomes (2)
  1. Tobacco Abstinence Biochemically Verified With Expired Carbon Monoxide (CO) < 8 p.p.m. at 12 Weeks

    Number of participants achieving self reported, seven day point prevalence abstinence, biochemically verified with expired carbon monoxide (CO) < 8 p.p.m., missing = smoking

    Measured: Week 12 of treatment

  2. Tobacco Abstinence Biochemically Verified With Expired Carbon Monoxide (CO) < 8 p.p.m. at 24 Weeks

    Number of participants achieving self reported, seven day point prevalence abstinence, biochemically verified with expired carbon monoxide (CO) < 8 p.p.m.

    Measured: 24 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jun 2011 (estimated)
  2. Study startJul 2011
  3. Primary completionJul 2015
  4. Study completionJul 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01378858
Sponsor's protocol ID
2010-279
Other IDs
K23DA025736
Status last verified
Mar 2021
First submitted
21 Jun 2011
Last updated
11 Mar 2021
Data monitoring committee
Yes

Publications

  • Livingstone-Banks J, Fanshawe TR, Thomas KH, Theodoulou A, Hajizadeh A, Hartman L, Lindson N. Nicotine receptor partial agonists for smoking cessation. Cochrane Database Syst Rev. 2023 May 5;5(5):CD006103. doi: 10.1002/14651858.CD006103.pub8.

    PubMed 37142273
  • Nahvi S, Adams TR, Ning Y, Zhang C, Arnsten JH. Effect of varenicline directly observed therapy versus varenicline self-administered therapy on varenicline adherence and smoking cessation in methadone-maintained smokers: a randomized controlled trial. Addiction. 2021 Apr;116(4):902-913. doi: 10.1111/add.15240. Epub 2020 Oct 13.

    PubMed 32857445
  • Nahvi S, Segal KS, Litwin AH, Arnsten JH. Rationale and design of a randomized controlled trial of varenicline directly observed therapy delivered in methadone clinics. Addict Sci Clin Pract. 2014 Jun 13;9(1):9. doi: 10.1186/1940-0640-9-9.

    PubMed 24928218

Questions about this trial

What is this clinical trial studying?

A study testing Varenicline in people with Tobacco Use Disorder and Medication Adherence, run by Albert Einstein College of Medicine at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 11 Mar 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Varenicline Adherence as Measured by Pill Count (time frame: Weeks 0-1, 1-2, 2-3, 4-6, 7-9, 10-12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01378858, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Mar 2021.

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