Concurrent Bupropion / Varenicline for Smoking Cessation (ConNic4)

This study has been completed.
Sponsor:
Collaborators:
Philip Morris USA, Inc.
Information provided by (Responsible Party):
Duke University
ClinicalTrials.gov Identifier:
NCT01303861
First received: February 23, 2011
Last updated: September 25, 2013
Last verified: September 2013
  Purpose

This study focuses on the first step in developing an algorithm for maximizing quit-smoking success based on an adaptive approach, which changes treatment from the initial NRT (nicotine replacement therapy) when that treatment alone may not be sufficient. These NRT "non-responders" are switched (in double-blind fashion) before the quit date to receive either varenicline alone or varenicline paired with bupropion. Some participants who would otherwise have failed at their quit smoking attempt could be "rescued" by switching to alternative pharmacotherapies. The proposed study will evaluate the combination treatment against varenicline alone in an adaptive trial design


Condition Intervention Phase
Nicotine Dependence
Drug: Varenicline
Drug: Bupropion
Drug: Nicotine patches
Drug: Nicotine Inhaler
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver)
Primary Purpose: Treatment
Official Title: Concurrent Bupropion / Varenicline for Smoking Cessation

Resource links provided by NLM:


Further study details as provided by Duke University:

Primary Outcome Measures:
  • Four-week continuous abstinence from cigarette smoking [ Time Frame: Study week 8 thru week 11 ] [ Designated as safety issue: No ]
    The primary dependent measures will be continuous four-week abstinence from weeks 8-11 post target quit date, defined as a self-report of no smoking confirmed by expired air carbon monoxide.


Secondary Outcome Measures:
  • Seven day point abstinence from cigarette smoking [ Time Frame: Six months post quit date ] [ Designated as safety issue: No ]
    Secondary outcome will include point (7-day) abstinence at 6 months post-quit.

  • Continuous cigarette abstinence from quit date [ Time Frame: From Quit date to end of treatment (week 11) ] [ Designated as safety issue: No ]
    Secondary outcome will include continuous abstinence from quit date to end of treatment (week 11).

  • Smoking withdrawal symptoms [ Time Frame: From quit date to end of study participation ] [ Designated as safety issue: No ]

Enrollment: 702
Study Start Date: March 2011
Study Completion Date: July 2013
Primary Completion Date: March 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: varenicline
This group will consist of smokers who, based on smoking behavior, DO NOT respond favorably to pre-cessation nicotine patches (assessed at Session P2). They will receive varenicline.
Drug: Varenicline
For the first 3 days after being switched from nicotine patches (occurring at one week before the target quit date), smokers in this group will receive varenicline at a dose of 0.5 mg once per day followed by 0.5 mg twice a day for the remaining 4 days of that week. Subsequently, the dose will be 1 mg twice per day, and will remain at that dose for the remainder of the 12 weeks.
Other Name: Chantix
Active Comparator: Nicotine Patches only
This group will consist of smokers who, based on smoking behavior, respond favorably to pre-cessation nicotine patches(assessed at Session P2). They will continue to receive only nicotine patches.
Drug: Nicotine patches

Nicotine Replacement Therapy Groups:

  1. For smokers with high baseline CO: 42 mg/24 h for 2 weeks before the quit date and 3 weeks after the quit date, 21 mg/24 h for 4 weeks, 14 mg/24 h for 2 weeks, and 7 mg/24 h for 2 weeks; or
  2. For smokers with low baseline CO: 21 mg/24 h for 2 weeks before the quit date and 7 weeks after the quit date, 14 mg/24 h for 2 weeks, and 7 mg/ 24 h for 2 weeks.

Varenicline and varenicline in combination with bupropion groups:

  1. For smokers with high baseline CO: 42 mg/24 h for 1 week
  2. For smokers with low baseline CO: 21 mg/24 h for 1 week
Other Name: Nicoderm
Active Comparator: Nicotine Patches with Nicotine Inhaler
This group will consist of smokers who, based on smoking behavior, respond favorably to pre-cessation nicotine patches (assessed at Session P2). They will continue to receive nicotine patches and will receive a nicotine inhaler to use as needed after their quit date.
Drug: Nicotine patches

Nicotine Replacement Therapy Groups:

  1. For smokers with high baseline CO: 42 mg/24 h for 2 weeks before the quit date and 3 weeks after the quit date, 21 mg/24 h for 4 weeks, 14 mg/24 h for 2 weeks, and 7 mg/24 h for 2 weeks; or
  2. For smokers with low baseline CO: 21 mg/24 h for 2 weeks before the quit date and 7 weeks after the quit date, 14 mg/24 h for 2 weeks, and 7 mg/ 24 h for 2 weeks.

Varenicline and varenicline in combination with bupropion groups:

  1. For smokers with high baseline CO: 42 mg/24 h for 1 week
  2. For smokers with low baseline CO: 21 mg/24 h for 1 week
Other Name: Nicoderm
Drug: Nicotine Inhaler
Nicotine inhaler to use as needed after quit date
Other Name: Nicotrol Inhaler
Active Comparator: varenicline with bupropion
This group will consist of smokers who, based on smoking behavior, DO NOT respond favorably to pre-cessation nicotine patches (assessed at Session P2). They will receive varenicline in combination with bupropion.
Drug: Varenicline
For the first 3 days after being switched from nicotine patches (occurring at one week before the target quit date), smokers in this group will receive varenicline at a dose of 0.5 mg once per day followed by 0.5 mg twice a day for the remaining 4 days of that week. Subsequently, the dose will be 1 mg twice per day, and will remain at that dose for the remainder of the 12 weeks.
Other Name: Chantix
Drug: Bupropion
For the first 3 days after being switched from nicotine patches (occurring at one week before the target quit date), smokers in this group will receive bupropion at a dose of 150mg once per day. Subsequently, the dose will be 150mg twice per day, and will remain at that dose for the remainder of the 12 weeks.
Other Name: Zyban

  Eligibility

Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • 18-65 years old;
  • smoked an average of at least 10 cigarettes per day for three cumulative years;
  • have an expired air CO reading assessed at screening of at least 10ppm;
  • express a desire to quit smoking within the next 30 days.

Exclusion Criteria:

  • Hypertension (systolic >140 mm Hg, diastolic >100 mm Hg, coupled with a history of hypertension); subjects with no previous diagnosis of hypertension may have a screening blood pressure up to 160/100.
  • Hypotension with symptoms (systolic <90 mm Hg, diastolic <60 mm Hg).
  • Coronary heart disease;
  • Lifetime history of heart attack;
  • Cardiac rhythm disorder (irregular heart rhythm);
  • Chest pains (unless history, exam, and ECG clearly indicate a non-cardiac source);
  • Cardiac (heart) disorder (including but not limited to valvular heart disease, heart murmur, heart failure);
  • History of skin allergy;
  • Active skin disorder (e.g., psoriasis) within the last five years, except minor skin conditions (including but not limited to facial acne, minor localized infections, and superficial minor wounds);
  • Liver or kidney disorder (except kidney stones, gallstones);
  • Gastrointestinal problems or disease other than gastroesophageal reflux or heartburn;
  • Active ulcers in the past 30 days;
  • Currently symptomatic lung disorder/disease (including but not limited to COPD, emphysema, and asthma);
  • Brain abnormality (including but not limited to stroke, brain tumor, and seizure disorder);
  • Migraine headaches that occur more frequently than once per week;
  • Recent, unexplained fainting spells;
  • Problems giving blood samples;
  • Diabetes treated with insulin; non-insulin treated diabetes (unless glucose is less than 180mg/dcl and HbA1c is less than 7%);
  • Current cancer or treatment for cancer in the past six months (except basal or squamous cell skin cancer);
  • Other major medical condition;
  • Current psychiatric disease (with the exception of anxiety disorders, OCD and ADHD);
  • Suicidal ideation (within the past 10 years) or lifetime occurrence of attempted suicide;
  • Current depression;
  • Bulimia or anorexia;
  • Pregnant or nursing mothers;
  • Alcohol abuse;
  • Use of Opiate medications for pain or sleep in the past 14 days;
  • Significant adverse reaction to nicotine patches, nicotine inhalers, bupropion / Wellbutrin / Zyban or Chantix / Varenicline in the past.
  • Use (within the past 30 days) of:
  • Illegal drugs (or if the urine drug screen is positive),
  • Experimental (investigational) drugs;
  • Psychiatric medications including antidepressants, anti-psychotics or any other medications that are known to affect smoking cessation (e.g. clonidine);
  • Smokeless tobacco (chewing tobacco, snuff), cigars, pipes or e-cigarettes;
  • Wellbutrin, bupropion, Zyban, Chantix, nicotine replacement therapy or any other smoking cessation aid.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01303861

Locations
United States, North Carolina
Duke Center for Nicotine and Smoking Cessation Research
Charlotte, North Carolina, United States, 28210
Duke Center for Nicotine and Smoking Cessation Research
Durham, North Carolina, United States, 27705
Duke Center for Nicotine and Smoking Cessation Research
Raleigh, North Carolina, United States, 27609
Duke Center for Nicotine and Smoking Cessation Research
Winston-Salem, North Carolina, United States, 27103
Sponsors and Collaborators
Duke University
Philip Morris USA, Inc.
Investigators
Principal Investigator: Jed E Rose, Ph.D. Duke University
  More Information

No publications provided

Responsible Party: Duke University
ClinicalTrials.gov Identifier: NCT01303861     History of Changes
Other Study ID Numbers: Pro00027351, 1P50DA027840-01A1
Study First Received: February 23, 2011
Last Updated: September 25, 2013
Health Authority: United States: Institutional Review Board

Keywords provided by Duke University:
Nicotine addiction
Cigarette smoking
Smoking cessation
Zyban
Chantix
Nicotine patches
Nicotrol Inhaler
varenicline
bupropion

Additional relevant MeSH terms:
Tobacco Use Disorder
Smoking
Substance-Related Disorders
Mental Disorders
Habits
Nicotine
Nicotine polacrilex
Varenicline
Bupropion
Ganglionic Stimulants
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Pharmacologic Actions
Nicotinic Agonists
Cholinergic Agonists
Cholinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Central Nervous System Stimulants
Central Nervous System Agents
Therapeutic Uses
Antidepressive Agents, Second-Generation
Antidepressive Agents
Psychotropic Drugs
Dopamine Uptake Inhibitors
Dopamine Agents
Neurotransmitter Uptake Inhibitors

ClinicalTrials.gov processed this record on July 28, 2014