Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 4, Prospective, Multi-National, Randomized, Double-Blind, Placebo-Controlled Study To Evaluate Smoking Cessation With Varenicline Tartrate Compared With Placebo In The Setting Of Patient Self-Selected (Flexible) Quit Date
Brief Summary: The hypothesis is that varenicline will be effective (compared with placebo) for smoking cessation when subjects are allowed to set their own quit date within the first 5 weeks of treatment.


Options:
A: DISEASE CHARACTERISTICS:

* Smokes 10 or more cigarettes/day over the past year AND ≥ 5 cigarettes/day within the past week
* Planning to stop smoking in 4-6 weeks
* Member of Group Health Cooperative (GHC) and planning to stay enrolled for the next 6 months
* Eligible for the Free \& Clear program
* Enrolled in the COMPASS study using bupropion hydrochloride medication
* No prior participation in GHC's Free \& Clear smoking cessation program within the past 6 months

PATIENT CHARACTERISTICS:

* In good general health
* Sufficient verbal and written English
* Dependable access to a telephone and the Internet
* Not currently drinking ≥ 14 alcoholic drinks per week and/or binge drinking ≥ 2 times in the past month
* Not pregnant or nursing
* No plan to become pregnant
* No severe chronic heart disease (e.g, myocardial infarction within the past 3 months)
* No severe chronic obstructive pulmonary disease that ever required hospitalization or oxygen treatment
* No diagnosis of or treatment for a psychotic disorder (e.g., schizophrenia, bipolar disorder, or mania)
* Not having certain kidney problems

PRIOR CONCURRENT THERAPY:

* See Disease Characteristics
* No concurrent use of medications contraindicated with bupropion hydrochloride or known to lower seizure threshold (e.g., antidepressant, antipsychotic, monamine oxidase inhibitor, or protease inhibitor)
* No concurrent use of recreational or street drugs
* No concurrent use of bupropion hydrochloride or nicotine replacement therapy
* No concurrent cimetidine, metformin, phenformin, pindolol, procainamide
* Not on dialysis
B: Inclusion Criteria:

* Current cigarette smokers between the ages of 18 and 75 years, who are motivated to stop smoking

Exclusion Criteria:

* Patients currently suffering from depression, or have been diagnosed with depression in the last 12 months, or subjects with past or present history of psychosis, panic disorder, or bipolar disorder
* Any subject with known severe chronic obstructive pulmonary disease (COPD)
C: Inclusion Criteria:

* Men and women
* 18 to 75 yrs old
* Motivated to stop smoking
* Smoke at least 10 cigarettes/day

Exclusion Criteria:

* Active psychiatric disease
* Severe or unstable cardiovascular or pulmonary disease
* Current or recent treatment to stop smoking
* Previous use of varenicline
D: Inclusion Criteria:

* At least 18 years of age
* Must be smoking 5 or more cigarettes per day

Exclusion Criteria:

* Previous history of bipolar/manic-depressive disorder
* Current diagnosis of schizophrenia
* Acute life threatening diseases
* Evidence of alcohol or other drug abuse so severe that the patient is judged to be potentially unable to comply with the protocol
* Pregnancy or lactation
* Individuals with out of normal range blood pressure, active angina, valve disease, valve replacement, active cardiomyopathies, myocardial infarction or Coronary artery bypass grafting (CABG) within one year, and Congestive heart failure (CHF)

Answer: C