Please select the eligibility criteria that correspond to the clinical trial below.
Title: Varenicline, an Alpha 4 Beta 2 Nicotinic Acetylcholine Receptor Partial Agonist, on Cognitive Dysfunction in 120 Patients With Schizophrenia: a Randomized, Double Blind, 8 Weeks Trial
Brief Summary: The primary objective of this project is to examine the effects of varenicline treatment used concomitantly with antipsychotic medications, on cognitive dysfunction in people with schizophrenia. The secondary objective is to evaluate the effect of this combination therapy on smoking in people with schizophrenia. This study will be a randomized, double blind, parallel group, placebo controlled 8 weeks trial.


Options:
A: Inclusion Criteria:

* Have a diagnosis (using the SCID-I/P at screening visit) of schizophrenia or schizoaffective disorder and judged to be stable (without hospitalization or acute exacerbation and functioning in society) on psychiatric treatment for at least the past 6 month.
* Current cigarette smokers (at least 15/day during the past year with no period of abstinence greater than 3 months in the past year) male or female, between the ages of 18 and 75 inclusive, who are motivated to stop smoking.
* Score 7 or higher on the Contemplation Ladder at the Screening, Week -1, and Baseline Visits.

Exclusion Criteria:

* PANSS score \>70 at Screen or Baseline Visit.
* Subjects hospitalized within the past six months due to suicidal ideation or suicidal behavior or subjects considered to have serious suicidal ideation or suicidal behavior within the past six moth.
* Subjects having active suicidal ideation or behavior identified at Screen, Week -1, or Baseline Visit.
* Subjects taking Bupropion.
B: Inclusion Criteria:

* Inclusion Criteria are:

  1. DSM-IV diagnosis of Schizophrenia or schizoaffective disorder
  2. Age: 18-64
  3. Regular half pack a day smokers
  4. Score of at least 4 on the Nicotine Dependency Test

     Exclusion Criteria:

     Exclusion Criteria are:

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  1. Seizure disorders, other Neurologic illnesses, or a family history of seizures
  2. A medical condition that could manifest psychiatrically
  3. Currently experiencing a depressive episode
  4. Active substance abuse
  5. Currently receiving bupropion
  6. Pregnant women
  7. Children (\<18 years of age)
  8. Two consecutive sodium levels of 130 mmol/L or less
C: Inclusion Criteria:

* Clinically stable patients with schizophrenia

Exclusion Criteria:

* Refractory schizophrenia
* Mental Retardation
* Serious Medical illness
D: Inclusion Criteria:

* DSM-IV diagnosis of schizophrenia or schizoaffective disorder and nicotine dependence
* Fagerstrom Test for Nicotine Dependence (FTND) score greater than 5
* Smokes at least 20 cigarettes per day (1 pack per day)
* Expired breath CO level \> 10 ppm and cotinine level \> 210 ng/ml at the baseline measurement
* Currently taking a stable dose of antipsychotic
* Complete remission from positive symptoms of psychosis as judged by a psychiatric evaluation

Exclusion Criteria:

* Meets criteria for current abuse or dependence for any alcohol or illicit substance within the past month
* History of hypersensitivity to bupropion or the nicotine transdermal patch (NTP)
* Current diagnosis of a serious documented medical disorder that would make bupropion treatment risky OR results of psychiatric/medical screening that suggest a reason for concern (e.g., a history of severe heart, liver, or kidney disease or diabetes mellitus)
* Currently taking monoamine oxidase inhibitors or bupropion (Zyban or Wellbutrin)
* Currently taking diabetes mellitus medications, St. John's Wort, appetite suppressants, ephedrine-containing medications, theophylline, clonidine, reserpine, methyldopa, or anti-anginal medications (e.g., beta-blockers, calcium channel blockers, nitroglycerin preparations)
* History of schizoaffective disorder and not stabilized on a mood stabilizer (e.g., lithium, valproate, carbamazepine)

Answer: C