Eligibility Module

Eligibility Module

The Eligibility Module contains detailed information about who can participate in the clinical trial. This includes eligibility criteria, age restrictions, gender requirements, healthy volunteer status, and study population descriptions, helping researchers understand who is eligible to participate in the study.

Eligibility Module path is as follows:

Study -> Protocol Section -> Eligibility Module

Eligibility Module


Ignite Creation Date: 2025-12-25 @ 2:06 AM
Ignite Modification Date: 2025-12-25 @ 2:06 AM
NCT ID: NCT03612960
Eligibility Criteria: Inclusion Criteria: * 21-60 years old * Smoke \>5 cigarettes per day * \>1 year of daily smoking * No quit attempt in prior month and not planning to quit smoking within next 3 months * Able to understand and consent to study procedures * High school or lower educational attainment or annual household income \< $50,000 * Plan to live in local area next 3 months * Women not pregnant or nursing and taking steps to avoid pregnancy * Able to read and write in English * Access to computer with internet service that allows for Zoom Exclusion Criteria: * Use of non-cigarette tobacco products in the past 7 days * Use of illicit substances more than once a week in the past 3 months (excluding marijuana) * Current alcohol abuse impairing participation * MRI safety contraindications (e.g., metal implants, claustrophobia) * Unstable or significant medical conditions (e.g., chronic obstructive pulmonary disorder, coronary heart disease) * Major neurological conditions or brain trauma * Major surgeries planned in next 3 months * Use of smoking cessation medication in prior month (e.g., varenicline, patch) * Uncontrolled serious mental illness, suicidality, or inpatient psychiatric hospitalization in the past 6 months * Unwillingness to provide urine samples * Unwilling to smoke study assigned cigarettes for the remainder of the trial * Plans to move or take extended travel out of the area in the next 3 months * Any other condition or situation that would, in the investigator's opinion, make it unlikely that the participant could comply with the study protocol * Self-reported color blindness * Left-handedness * Smell dysfunction as determined via standardized assessment
Healthy Volunteers: False
Sex: ALL
Minimum Age: 21 Years
Maximum Age: 60 Years
Study: NCT03612960
Study Brief:
Protocol Section: NCT03612960