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:

* Aged 18 to 65 years old
* Smoking 20 or more cigarettes per day
* Wants to stop smoking(seeking treatment)
* No period of smoking abstinence longer than 3 months in the past year
* Be able to give informed consent to participate
* Complete the study questionnaires
* Female smokers will be eligible providing they are not breastfeeding, pregnant (negative pregnancy test) or at risk of becoming pregnant

Exclusion Criteria:

* Previous use of nicotine transdermal patches or varenicline (VRN) in the last 6 months
* Cigar, pipe and oral tobacco users who do not smoke 20 or more cigarettes per day
* Those who meet the criteria contra-indicating nicotine patches or VRN use, as described in the Summaries Product Characteristics
* Those with previous severe adverse reactions to nicotine patch or to VRN
* Those currently taking either medication for smoking cessation that they are unwilling to stop or taking medication with a known influence on smoking cessation that they should not stop (e.g. nortriptyline for depression)
* Those who are non-Spanish neither Catalan speakers
* Those deemed unsuitable for the study by their smoking cessation physicians; -- Unstable diseases within the previous 6 months
* Diagnoses of or treatment for major depression last 6 months or psychotic disorder; or drug or alcohol dependence within the previous 12 months
* Skin disorders that cause a difficulty of nicotine absorption by patches as Psoriases as well as general dermatitis
* Clinically significant renal or hepatic impairment or dysfunction
* Pregnant or breast-feeding women
* women who do not use neither want to use any effective anticonceptive method.
B: 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
C: Inclusion Criteria:

* Age 18 or older
* English speaking
* Smoked at least 100 cigarettes/lifetime
* Smokes 5 or more cigarettes per day
* Interested in quitting smoking (preparation or contemplation state of change)
* Enrolled in Einstein/Montefiore methadone program for 3 or more months
* Stable methadone dose for 2 weeks
* Agree to use contraception throughout the trial (among women with reproductive potential)
* Willing to participate in all study components
* Able to provide informed consent

Exclusion Criteria:

* Serious or unstable HIV/AIDS, liver, cardiovascular, or pulmonary disease
* Psychiatric instability
* Women who are pregnant, breastfeeding, or contemplating pregnancy
* Creatinine clearance less than 30 mL/min
D: Inclusion Criteria:

* Currently a patient in the Omaha VA Medical Center, Substance Abuse Treatment Center (SATC) or at Catholic Charities Campus for Hope.
* Have a diagnosis of alcohol abuse or alcohol dependence.
* Smoke 20 or more cigarettes/day (may also smoke pipes/cigars).
* Be interested in quitting smoking.
* Provide name, addresses, and phone numbers of at least two individuals who can provide information on their alcohol, nicotine, and other drug use during the follow-up period.
* If female, patient must a) be of non-childbearing potential, b) have a negative pregnancy test, c) sign a document stating they do not plan on becoming pregnant during the study.
* Agree to sign informed consent.
* Able to read and understand study-related forms and procedures.

Exclusion Criteria:

* Advanced cardiac, pulmonary, renal, or liver disease.
* History of seizures.
* History of brain tumor or significant head trauma.
* History of bulimia or anorexia nervosa.
* Current major depressive disorder or past history of panic disorders, schizophrenia, or bipolar affective disorder.
* Using psychoactive drugs.
* Receiving treatment with medications that lower seizure thresholds.
* Use of an investigational drug in any study in the past four weeks.
* Currently using any asthma medication.
* Used time-released bupropion in the past 12 months.
* Currently using any other treatments to stop smoking.

Answer: B