Please select the eligibility criteria that correspond to the clinical trial below.
Title: Varenicline Versus Transdermal Nicotine Patch for Smoking Cessation in Patients With Coronary Heart Disease: a Pilot Randomized Trial
Brief Summary: The purpose of this study is to determine if a new drug, varenicline, for smoking cessation is more effective than the standard nicotine replacement therapy aide currently used, "the patch" among smokers hospitalized with coronary heart disease.


Options:
A: Inclusion Criteria:

* smoking at least 10 cigarettes/day in the month prior to admission
* patient has been diagnosed with acute coronary syndrome (includes patients admitted for unstable angina or acute myocardial infarction), elective percutaneous coronary intervention, or coronary artery bypass surgery at any point in time
* motivated to stop smoking
* geographically available for follow-up visits (i.e., live within 1 hour of the study centre)

Exclusion Criteria:

* have been using NRT, Zyban (or Wellbutrin), and/or Champix for more than 72 hours
* have serious cardiac arrhythmias (e.g., tachycardia), vasospastic disease (e.g., Buerger's disease, Prinzmetal's variant angina)
* have severe renal impairment or are on dialysis
* unable to read and understand English
* patient is pregnant or breastfeeding or planning on becoming pregnant during the study period
B: Inclusion Criteria:

* Smokes greater than 20 cigarettes per day

Exclusion Criteria:

* History of Parkinson's disease, high blood pressure, or severe liver or kidney disease
* Current substance abuse
* Mental illness
* Skin conditions that could interfere with patch use
* Using antidepressant medications (e.g., levodopa/carbidopa, methyldopa, or any MAO inhibitor)
* Pregnant or breastfeeding
C: Inclusion Criteria:

* Male or female daily smokeless tobacco users aged 18 years and older, who are motivated to stop use of all tobacco products.
* Subjects must be daily users of nicotine containing smokeless tobacco and using smokeless tobacco on at least 8 occasions per day averaged over a week.
* Have used smokeless tobacco for at least 1 year prior to screening with no period of abstinence \>3 months in the past year.

Exclusion Criteria:

* Subjects using nicotine containing products (including smoking tobacco) other than smokeless tobacco for 3 months prior to screening.
* Subjects with exhaled Carbon Monoxide (CO) \>10 ppm at baseline.
* Subjects who have used varenicline, bupropion, or NRT within 3 months of screening.
* Subjects currently or within the past 12 months requiring treatment for depression or have a current or prior history of panic disorder, psychosis, bipolar disorder or any other serious mental illness.
D: Inclusion Criteria:

* Veteran status
* 18 + years of age
* Smoke cigarettes on at least a daily basis
* Receive primary care from the Iowa City VA Health Care System or an affiliated Community-based Outpatient Clinic (CBOC)
* Live in a non-metropolitan area (based on Rural-Urban Commuting Area Codes (RUCA) codes)
* Be willing to make an attempt to quit smoking in the next 30 days
* Be capable of providing informed consent
* Have access to a telephone (land line or cell phone)
* Have a stable residence

Exclusion Criteria:

* Planning to move within the next 12 months
* Presence of a terminal illness
* Pregnancy
* Unstable psychiatric disorder (e.g., acute psychosis)
* Currently pregnant
* Incarcerated
* Institutionalized

Answer: A