Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Prospective, Randomized, Double-Blind, Placebo-Controlled, Multi-Center Multinational Study Of Efficacy And Safety Of Varenicline Tartrate For Smoking Cessation
Brief Summary: To investigate safety and efficacy of varenicline tartrate in helping people quit smoking


Options:
A: Inclusion Criteria:

* Schizophrenic subjects (according to DSM-IV-TR criteria) from throughout Sicily, (Italy), who smoke tobacco cigarettes, in stable phase of illness.
* smoke ≥10 factory made cig/day, for at least the past five years
* age 18-65 years
* in good general health
* not currently attempting to quit smoking or wishing to do so in the next 30 days (a specific test will be included to check their unwillingness to quit) 6 months
* committed to follow the trial procedures.

Exclusion Criteria:

* use of smokeless tobacco or nicotine replacement therapy
* pregnancy or breastfeeding.
* current or recent (less than 1 yr) past history of alcohol and/or drug abuse
* other significant co-morbidities according to the Investigator's clinical assessment
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:

* 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)
D: Inclusion Criteria:

* Structured Clinical Interview (SCID) derived DSM-IV diagnoses of Bipolar Disorder (Type I or II), and Nicotine Dependence
* Young Mania Rating Scale Total Score \<12 at study entry
* HAM-D 17-Item Score \>5 and \<24 at study entry
* Fagerstrom Test for Nicotine Dependence (FTND) score of 5 or higher
* Be able to provide informed consent to participate in this study as judged by clinical evaluation, and scoring at least 80% on a post-consent "test"
* Smoking at least 10 cigarettes per day (confirmed by an expired breath CO level \>10 ppm and a plasma cotinine level \>150 ng/ml at baseline)
* Be motivated to quit smoking within 30 days of initial evaluation, as assessed by a score of 7 or higher on the Contemplation Ladder assessment tool
* On a stable dose of a mood stabilizer for at least 1 month (e.g. lithium, valproate, carbamazepine, atypical antipsychotic)
* Judged by the study psychiatrists and/or trained psychiatric clinicians to be in remission from active manic, hypomanic, major depressive and psychotic symptoms based on a clinical interview and SCID-IV ≥1 month prior to study enrollment

Exclusion Criteria:

* Meet criteria for current abuse or dependence for any other alcohol or illicit substance within the past 3 months of study enrollment
* Current evidence by SCID-IV and clinical evaluation of suicidality, homicidality or psychosis
* Meet DSM-IV criteria for current major depression at the time of baseline evaluation
* A history of hypersensitivity or other known adverse reactions (e.g. hyperstimulation, severe agitation) to varenicline.
* Serious medical conditions (i.e. a history of severe cardiac, renal or hepatic disease, diabetes mellitus or thyroid abnormalities)
* EKG abnormalities
* Prescription of Nicotine Replacement Therapies (NRTs) including patches, gum, lozenges or inhalers
* Prescription of monoamine oxidase inhibitors (MAO-I's) including selegiline or moclobemide
* Prescription of varenicline
* Prescription of bupropion SR
* The presence of manic, mixed manic or hypomanic symptoms in the past one month prior to study enrollment.
* A lifetime history of antidepressant-induced mania or hypomania
* A history of suicidal ideation while taking antidepressants

Answer: C