Please select the eligibility criteria that correspond to the clinical trial below.
Title: Antismoking Effects of Electronic Cigarettes in Subjects With Schizophrenia and Their Potential Influence on Cognitive Functioning: Design of a Randomized Trial. Smoking Cessation And Reduction In Schizophrenia (The SCARIS Study)
Brief Summary: It is well established in studies across several countries that tobacco smoking is more prevalent among schizophrenic patients than the general population. Electronic cigarettes (e-cigarettes) are becoming increasingly popular with smokers worldwide. To date there are no large randomised trials of e-cigarettes in schizophrenic smokers. A well-designed trial is needed to compare efficacy and safety of these products in this special population.


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:Healthy smokers 18-60 years old, smoking ≥15 conventional cigarettes per day (cig/day) for at least 10 years were recruited using anti-smoking leaflets and by an approved kiosk located in the atrium of the university hospital (AOU 'Policlinico-V. Emanuele') promoting the smoking cessation services of the CPCT (Centro per la Prevenzione e Cura del Tabagismo, Università di Catania, Italy).

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Exclusion Criteria:history of alcohol and illicit drug use, major depression or other psychiatric conditions. We also excluded subjects who reported recent myocardial infarction, angina pectoris, essential hypertension (\>140mmHg systolic and/or \>90mmHg diastolic), diabetes mellitus, severe allergies, poorly controlled asthma or other airways diseases

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C: Inclusion Criteria: healthy smokers unwilling to quit, between 18 and 60 years of age. They should report a cigarette intake of ≥ 15 cig/day for at least 5 years. At screening they must provide a CO level of ≥ 15 ppm and an FTND ≥ 5.

Exclusion Criteria: alcohol and illicit drug use, breastfeeding, or pregnancy. Individuals who report current attempts to quit smoking and previous experience with electronic cigarettes will be also excluded.
D: Inclusion Criteria:

Participants must:

1. be aged 18 years or older
2. reside in Washington, D.C. metro area (including VA and MD suburbs)
3. be proficient in English
4. be daily smoker with at least 5 years of established daily smoking

   * A person will be categorized as a daily smoker if he reports daily smoking of at least 8 cigarettes a day for the past 5 years, and records an exhaled air carbon monoxide (CO) level \> 8 parts-per-million (ppm) at the baseline in-person meeting.
   * Daily smokers will be eligible for the main study if they do not intend to quit in the next 30 days.
   * If they do intend to quit in the next 30 days, eligible daily smokers will be enrolled in the second arm of the study.
5. not taking smoking cessation medications;
6. smoked LCC/cigars/hookah less than 5 times in last 30 days
7. have not used other tobacco products in last 30 days
8. have not used an ENDS product (electronic cigarette) in the last 30 days
9. be interested in trying an ENDS
10. have an iPhone or Android that allows installation of applications and use it daily
11. have a phone plan that allows unlimited text messages
12. be willing to travel to the data collection cite four times in three weeks
13. not be breastfeeding or planning to become pregnant
14. not have heart disease/uncontrolled blood pressure
15. not have psychosis/suicidal thoughts
16. not be currently enrolled in an alcohol treatment program
17. not be out of town for more than 5 nights in the next 6 weeks

Exclusion Criteria:

* Individuals who do not satisfy the criteria above will not be eligible for this study.
* There will be no involvement of vulnerable populations.

Answer: A