Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 2B, Multi-Center, Randomized, Double-Blinded, Parallel-Arm , Study to Assess Efficacy and Safety of 3'-Aminomethylnicotine-P. Aeruginosa r-Exoprotein A Conjugate Vaccine (NicVAX®) or Placebo Co-Administered With Varenicline (Champix®) as an Aid in Smoking Cessation
Brief Summary: The purpose of this study is to evaluate the efficacy and safety of NicVAX co-administered with varenicline as an aid in smoking cessation over a one-year period in smokers who want to quit smoking.


Options:
A: Inclusion Criteria:

* Healthy male and female adolescents (12 - 16 years inclusive) with a total body weight greater than 30 kg who currently smoke an average of at least 3 cigarettes per day.

Exclusion Criteria:

* Male and female subjects with a positive urine drug screen and female subjects with a positive pregnancy test.
B: Inclusion Criteria:

* Males or females, ages 18 to 69, with a DSM-IV diagnosis of Schizophrenia or Schizoaffective Disorder, receiving outpatient psychiatric treatment
* Currently taking antipsychotic medication for at least 4 weeks (medication is prescribed, compliance assessed based on self-report and collateral information)
* Current DSM-IV diagnosis of Nicotine Dependence
* Current DSM-IV diagnosis of Alcohol Dependence
* Subject expresses a desire to cut down or quit smoking and drinking (based on assessment with contemplation ladder)
* An average of at least one pack of cigarettes per day (\>=20 cigarettes/day) over the 7 days prior to intake
* An average of at least 7 drinks over the 7 days prior to intake

Exclusion Criteria:

* Inability to give adequate informed consent
* Currently taking sustained - release bupropion (Zyban) or receiving any other form of bupropion, such as Wellbutrin or Wellbutrin SR; receiving another form of pharmacological smoking cessation treatment (e.g., nicotine gum or patch); or participating in another structured, formal smoking cessation program.
* Currently taking naltrexone (ReVia), Campral or Antabuse
* Participation in a clinical trial less than 3 months prior to intake
* History of suicide attempt in the past year
* History of hospitalization due to suicidal ideation in the past year
* Suicidal ideation at baseline
* Known allergic reaction to varenicline
* Female patients of childbearing potential who are sexually active, not sterile, and who deny using a form of birth control.
* Female patients who are pregnant or nursing.
* Significant unstable medical problems (e.g. impaired renal function).
* Significant unstable psychiatric disorders.
* Subjects who do not attend all required screening appointments.
* Subjects who have pending legal proceedings whose outcome may lead to incarceration within 3 months of intake.
* Positive urine drug screen for cocaine, opioids or amphetamine at baseline
* Current DSM-IV diagnosis of Cocaine, Opioid or Cannabis Dependence (1 month prior to enrollment)
* Metal implants or devices (e.g. aneurysm clips, cochlear implants, neural stimulators, cardiac pacemakers)
* Weight over 250 lbs
* Claustrophobia
C: Inclusion Criteria:

* Smokes at least 10 cigarettes per day
* Good general health
* Negative pregnancy test prior to study entry

Exclusion Criteria:

* Prior exposure to NicVAX or any other nicotine vaccine
* Known allergic reaction to alum or any of the components of the vaccine
* Use of systemic steroids, immunosuppressive agents or other medication that might interfere with an immune response
* Cancer or cancer treatment in the last 5 years
* HIV infection
* History of drug or alcohol abuse or dependence within 12 months
* Significant cardiovascular, hepatic, renal, psychiatric and/or respiratory disease
* Previous intolerance to varenicline
* Inability to fulfill all visits for approximately 54 weeks
D: Inclusion Criteria:

* Smoke 10 or more cigarettes per day
* Expired carbon monoxide (CO) level greater than 9 parts per million (ppm)
* Motivated to quit smoking (score of 3 on 4-point self-report scale)
* Willing to fulfill study requirements

Exclusion Criteria:

* Carbon monoxide breath test score below 9 ppm
* Serious psychopathology (bipolar disorder, psychosis)
* Center for Epidemiologic Studies Depression Scale CES-D)score over 16
* Contraindications for use of bupropion
* History of seizure disorder
* History of eating disorder
* Current heavy drinking
* Risk of pregnancy
* Current breastfeeding

Answer: C