Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 4 Randomized, Double-Blind, Placebo-Controlled, Multicenter Study Evaluating The Efficacy And Safety Of Re-Treatment With Varenicline In Subjects Who Are Currently Smoking, And Who Have Previously Taken Varenicline
Brief Summary: The main purpose of this study is to compare the effectiveness and safety of the re-treatment of smokers with varenicline with placebo for smoking cessation during the last 4 weeks of a 12 week course of treatment. The study will also assess whether smokers remain abstinent at Week 24 (12 weeks after the end of treatment) and Week 52 (40 weeks after the end of treatment).


Options:
A: Inclusion Criteria:

* Patients must be ≥ 18 years of age.
* Patient with newly diagnosed or recurrent, histologic diagnosis of any of the following tobacco related malignancies:

  1. Lung or Bronchus cancer or Head \& Neck, cancers (all sites).
  2. Esophagus, Stomach, Pancreas, Kidney, Urinary Bladder, Colon, Rectum, Cervix, Vulvar, Vaginal
  3. Carcinoma in situ undergoing definitive surgical resection or treatment (ex: radiation of the larynx, and gynecologic tract hysterectomy, vulvectomy - except gynecologic patients undergoing ablative or local excisional therapies \[laser ablation,cervical conization, LEEP\].
* Having smoked at least 1 cigarette within 4 weeks of study enrollment.
* Having at least a 10-pack year history of cigarette smoking.
* Having smoked at least one cigarette within 1 month of cancer diagnosis.
* Life expectancy is greater than 1 year.
* Patient has an AUDIT score of \< 10.
* Patient has ECOG Performance Status of \<=2.
* Patients must have the ability to understand and the willingness to provide signed written informed consent document.

Exclusion Criteria:

* Known allergy attributed to bupropion, varenicline, transdermal or lozenge nicotine.
* History of suicide attempt or preparation for attempt within the past 10 years.
* C-SRSS Baseline/Screening:

  1. Patient response of "Yes" to any question except question 1.
  2. Patient response of "Yes" to any question in column one (lifetime), except question 1, is not exclusionary unless judged by the investigator to be significant in ideation, intensity, behavior or attempts, and precludes participation.
* Hospitalized for psychiatric illness within the past two years.
* History of Bipolar disorder.
* Currently taking Bupropion for depression.
* Patient has taken monoamine oxidase inhibitors (MAOI) in the past two weeks.
* History of eating disorder such as anorexia or bulimia.
* Active widespread skin disorders such as psoriasis, chronic urticarial or dermatitis
* History of epilepsy or seizure disorder.
* Active severe kidney or liver disease.
* Women must not be pregnant or lactating. Women of reproductive-potential must have negative serum or urine pregnancy test within 7 days prior to study enrollment and agree to use method of contraception during and for 30 days following last cessation drug dose.
* Patients within three months of a myocardial infarction.
* Patients with unstable angina or serious arrhythmia.
* Patients with psychiatric disability judged by the investigator to be clinically significant so as to preclude informed consent or compliance with drug intake.
* Patient taking varenicline or bupropion within one month of study enrollment.
* Participation in any other investigational drug study within 4 weeks of study enrollment.
* Currently enrolled in other professional tobacco cessation therapeutic intervention.
* Enrollment in a concurrent cancer therapeutic trial will require prior review and approval by the study site PI to determine that there are no drug interactions concerns.
B: Inclusion Criteria:

* Smokers aged 18 years or above and wanting to stop smoking
* Smokers who have smoked an average of at least 10 cigarettes per day over the last 4 weeks
* Smokers who have tried before to stop smoking at least once with varenicline, and who took varenicline for at least 2 weeks
* The last attempt to stop smoking must be at least 3 months before entering the study

Exclusion Criteria:

* Individuals who have not tolerated varenicline well previously, or who have a current or prior medical or psychiatric history that would make entry into the trial inadvisable
* Individuals who have previously participated in clinical trials of varenicline
* Individuals who have been participating in another smoking cessation trial within the last 3 months, or other drug trial within the last 30 days
C: Inclusion Criteria:

* Age 18-60
* DSM-IV Diagnosis of schizophrenia, schizoaffective disorder, or schizophreniform disorder
* Clinically stable with no change in antipsychotic medications and increase of daily dose for 4 weeks prior to enrollment
* Sufficient understanding of the study and risks (ESC score 10 or above)

Exclusion Criteria:

* Major medical illness history including, but not limited to, history of heart attack, stroke, TIA (transient ischemic attack)
* History of organic brain disorders that may affect neurophysiological measurements, including seizure disorder, brain tumor, head injury with evidence of significant cognitive deterioration
* DSM-IV diagnosis of substance dependence within 6 months except nicotine and marijuana
* On nicotine replacement therapy (nicotine patch, gum, or nasal spray)
* Uncontrolled blood pressure (persistent systolic above 155 or diastolic above 95)
* EKG of second or third degree atrioventricular (AV) block
* Renal insufficiency with estimated creatinine clearance \<40 ml/min
* Women who have positive urine pregnancy tests
* Women who are pregnant, plan to become pregnant, or in breastfeeding
D: Inclusion Criteria:

1. Male or non-pregnant female cigarette smokers 18-years-of-age or older and reporting smoking at least an average of 10 cigarettes per day for the past year;
2. Subject is alcohol dependence based on DSM IV criteria as assessed by the Mini-International Neuropsychiatric Interview (MINI) and the physician investigator;3
3. Subject is currently drinking alcoholic beverages as assessed by the physician investigator;
4. Subject is a female subject of non-childbearing potential or a female subject of childbearing potential - who is using contraceptives and has a negative pregnancy test result;
5. Subject must be able to complete all the study visits;
6. Subject has the ability to participate fully in all aspects of the study and keep scheduled appointments;
7. Subject must be in good general health as determined by medical history, physical exam and physician investigator;
8. Subject must provide written informed consent to participate in the study;

Exclusion Criteria:

1. Subject is a female who is pregnant, lactating or likely to become pregnant during the trial and not willing to use an acceptable form of contraception during the medication phase, (for women of child-bearing potential, a pregnancy test will be performed prior to entry into the study and at the end of the medication phase);
2. Subject has another household member in study;
3. Known allergy to varenicline;
4. Subject is currently (in previous 30 days) using other behavioral or pharmacologic tobacco cessation program (i.e., behavioral therapy, nicotine replacement therapy, clonidine, varenicline, bupropion SR, nortriptyline or doxepin) and unwilling or unable to discontinue use;
5. Subject has an unstable medical condition as determined by the physician investigator;
6. Subject describes having a medical history of: a) unstable angina; b) myocardial infarction within the past 3 months; c) coronary angioplasty or d) an untreated cardiac dysrhythmia;
7. Subject has a personal history of renal failure or is on renal dialysis;
8. Subject has a current moderate or severe depression as assessed by the Center for Epidemiologic Studies-Depression survey (CES-D) and physician investigator;
9. Subject has, as defined by the Columbia Suicide Severity Rating Scale (C-SSRS) current non-specific suicidal thoughts, or have a lifetime history of a suicidal attempt (defined as "potentially self-injurious act committed with at least some wish to die, as a result of act");
10. Subject has current (past 30 days) major depressive disorder or has a history of another psychiatric disorder such as psychosis or bipolar disorder;
11. Subject currently uses of other tobacco products (i.e. pipe, cigar, smokeless tobacco) within the past 30 days;
12. Subject currently has cancer \[excluding non melanoma skin cancer\] not in remission (cancer free for 5 years or more);
13. Subject currently has Type 1 diabetes;
14. Subject has untreated hypertension or baseline systolic blood pressure \> 180 or diastolic \> 100;
15. Subject is currently on treatment with another investigational drug (within 30 days of study entry);

Answer: B