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SmokingPhase 2/3CHANBANNCT00935818

Varenicline and Bupropion for Smoking Cessation

A Phase 2/3 study testing Varenicline and bupropion SR in people with Smoking, run by Mayo Clinic at 3 sites 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 study provides an opportunity to combine varenicline and bupropion SR and capitalize on the potential additive benefit. The investigators hypothesize that this will further increase long-term (≥ 6 months) smoking abstinence rates. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Smoking
What is being tested?
Varenicline and bupropion SR
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
506 participants
Where
3 sitesUnited States
Study dates
Sep 2009to Apr 2013
Phase
Phase 2/3
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
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subject is at least 18 years of age;
  • Subject has provide written informed consent;
  • Subject is smoking greater than or equal to 10 cigarettes per day for at least 6 months;
  • 3) Subject is able to complete all study visits 4) Subject is in good health as determined by the investigator 5) Subject has the ability to participate fully in all aspects of the study and keep scheduled appointments 6) Subject is motivated to stop smoking.

Who cannot join

  • Female and were pregnant, lactating or likely to become pregnant during the trial and not able nor willing to use contraception or had:
  • an unstable medical condition;
  • another household member participating in the study;
  • bupropion or varenicline allergy;
  • current use (previous 30 days) of a tobacco dependence treatment and unable or unwilling to discontinue use;
  • an unstable medical condition or unstable angina, myocardial infarction, or coronary angioplasty (past 3 months) or an untreated cardiac dysrhythmia;
Show all 18Show fewer
  • a history of renal failure or were on renal dialysis;
  • a history of seizures;
  • as defined by the C-SSRS (Columbia-Suicide Severity Rating Scale), current non-specific suicidal thoughts or lifetime history of a suicidal attempt (defined as "potentially self-injurious act committed with at least some wish to die, as a result of act");
  • a history of closed head trauma associated with > 30 minutes of loss of consciousness, amnesia, skull fracture, subdural hematoma, or brain contusion;
  • a history or psychosis, bipolar disorder, bulimia or anorexia nervosa;
  • current moderate or severe depression as assessed by a score of ≥ 20 on the Beck Depression Inventory, Second Edition (BDI-II) 10;
  • active substance abuse other than nicotine;
  • current (past 14 days) use of an antipsychotic, monoamine oxidase inhibitors, or drugs known to interact with bupropion SR;
  • a recent dose change of their antidepressant (within last 3 months);
  • untreated hypertension or baseline systolic blood pressure > 180 or diastolic > 100;
  • current treatment with another investigational drug for tobacco dependence (previous 30 days); or
  • current use of bupropion or varenicline (previous 30 days).

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Franciscan Skemp Hospital

    La Crosse, Wisconsin, 54601

  • University Of Minnesota

    Minneapolis, Minnesota, 55414

  • Mayo Clinic

    Rochester, Minnesota, 55905

Other trials in United States

About this study

Official title: Combination Therapy With Varenicline and Bupropion for Smoking Cessation

This study provides an opportunity to combine varenicline and bupropion SR and capitalize on the potential additive benefit. The investigators hypothesize that this will further increase long-term (≥ 6 months) smoking abstinence rates.

Read the detailed description

Cigarette smoking is the single most important preventable cause of morbidity, mortality and excess health care costs in the United States and accounts for 30% of U.S. cancer deaths. Varenicline and bupropion SR (sustained-release) are non nicotine pharmacotherapies FDA-indicated for the treatment of tobacco dependence in cigarette smokers. Although varenicline has proven greater efficacy than bupropion SR, both medications are associated with high end-of-treatment smoking abstinence rates. However, almost two-thirds of smokers treated with varenicline report smoking at 6 months. Because varenicline and bupropion SR have different mechanisms of action and different neuropharmacologic targets, combination pharmacotherapy with these agents may increase long-term smoking abstinence rates above what is observed with single-agent therapy. In our recent pilot study of combination therapy with varenicline and bupropion SR, we observed treatment to be well-tolerated with 7-day point prevalence smoking abstinence rates of 71% (95% CI: 54-85%) at 3 months and 58% (95% CI: 41-74%) at 6 months. Determining the efficacy of combination therapy compared to single-agent therapy has immediate and important clinical implications. In this study, we will conduct a randomized, multicenter, controlled clinical trial evaluating the efficacy of combination therapy with varenicline and bupropion SR compared to varenicline and placebo in 506 cigarette smokers at the Mayo Clinic in Rochester, MN, and the University of Minnesota in Minneapolis, MN.

Conditions
Smoking
Being tested
Varenicline, placebo, bupropion SR
Keywords
smoking, nicotine, tobacco, dependence, cessation, abstinence
Medical subject headings
Smoking

What participants receive

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

  • VareniclineDrug

    Also called chantix

    varenicline - 1 mg bid for 12 weeks

  • placeboDrug

    Also called sugar pill

    placebo for 12 weeks

  • bupropion SRDrug

    Also called wellbutrin SR, zyban

    bupropion sr - 150 mg bid for 12 weeks

Study groups in NCT00935818
Study groupRoleWhat they receive
varenicline and buproprion SRActive comparatorEveryone randomized to this arm will receive varenicline (up to 1mg bid) and bupropion SR (150 mg bid)for 12 weeks. They will be followed up by study for an additional 9 months post end of medication - for a total of 1 year study participation. Everyone will receive behavioral counseling for the full year.
Receives: Drug: Varenicline; Drug: bupropion SR
varenicline and placeboPlacebo comparatorEveryone randomized to this arm will receive varenicline (up to 1mg bid) and placebo (0 mg bid)for 12 weeks. They will be followed up by study for an additional 9 months post end of medication - for a total of 1 year study participation. Everyone will receive behavioral counseling for the full year.
Receives: Drug: Varenicline; Drug: placebo

What is being measured

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

  1. Prolonged Smoking Abstinence Rates at 12 Weeks in Cigarettes Smokers.

    Prolonged smoking abstinence is defined as no smoking, not even a puff, in the last 7 days, and a negative response to the question "Since 2 weeks after your target quit date, have you smoked any tobacco, even a puff, for 7 consecutive days or at least once each week on 2 consecutive weeks?"

    Measured: 3 months

  2. Point Prevalence Abstinence at 3 Months.

    biochemically confirmed 7-day point prevalence abstinence defined as no smoking, not even a puff, in the previous 7 days.

    Measured: 3 months

Secondary outcomes (5)
  1. Prolonged Smoking Abstinence Rates at 26 Weeks in Cigarettes Smokers.

    Measured: 6 months

  2. Weight Gain From Baseline to 3 Months

    Weight change from baseline to three months in those who met criteria for prolonged abstinence at the 3 month visit

    Measured: 3 months

  3. Point Prevalence Abstinence at 6 Months.

    Biochemically confirmed abstinence as no smoking, even a puff, for the prior 7 days.

    Measured: 6 months

  4. Prolonged Abstinence at 12 Months

    Measured: 12 months

  5. Point Prevalence Abstinence at 12 Months

    Biochemically confirmed abstinence defined as no smoking, not even a puff, in the last 7 days

    Measured: 12 months

Timeline

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

  1. First posted9 Jul 2009 (estimated)
  2. Study startSep 2009
  3. Primary completionApr 2013
  4. Study completionApr 2013

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
506 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00935818
Sponsor's protocol ID
09-003598
Other IDs
09-002459, 1R01CA138417
Acronym
CHANBAN
Status last verified
Apr 2014
First submitted
6 Jul 2009
Last updated
9 May 2014
Data monitoring committee
Yes

Publications

  • Ebbert JO, Hatsukami DK, Croghan IT, Schroeder DR, Allen SS, Hays JT, Hurt RD. Combination varenicline and bupropion SR for tobacco-dependence treatment in cigarette smokers: a randomized trial. JAMA. 2014 Jan 8;311(2):155-63. doi: 10.1001/jama.2013.283185.

    PubMed 24399554
  • 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
  • Hartmann-Boyce J, Theodoulou A, Farley A, Hajek P, Lycett D, Jones LL, Kudlek L, Heath L, Hajizadeh A, Schenkels M, Aveyard P. Interventions for preventing weight gain after smoking cessation. Cochrane Database Syst Rev. 2021 Oct 6;10(10):CD006219. doi: 10.1002/14651858.CD006219.pub4.

    PubMed 34611902

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Varenicline and bupropion SR in people with Smoking, run by Mayo Clinic at 3 sites 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 4 inclusion and 18 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 9 May 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Apr 2014). 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?

Prolonged Smoking Abstinence Rates at 12 Weeks in Cigarettes Smokers. (time frame: 3 months). The study lists 2 primary outcomes in all. 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 NCT00935818, 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 9 May 2014.

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