Nicotine myths: study reveals how messaging shapes smoker beliefs
NCT ID NCT05108649
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how information about nicotine changes what smokers believe and how they use tobacco. 74 adult smokers took part and answered questions about their views on nicotine and smoking. The goal was to understand, not to treat or cure.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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74 people
The number who actually took part.
- Started
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Mar 2022
- Finished
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Jun 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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21 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Self-report smoking at least 5 non-menthol, filtered cigarettes per day for at least the last 12 months. * Not currently undergoing smoking cessation treatment or planning to quit over the duration of the study (\~6 weeks). * Plan to live in the area for the duration of the study. * Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the combined consent and HIPAA form. * Able to communicate fluently in English (i.e., speaking, writing, and reading). Exclusion Criteria: * Smoke menthol cigarettes greater than 20% of the time. * Smoke cigarettes of non-standard circumference (e.g., wides, slim, capri, etc.) * Use of any nicotine containing products other than cigarettes. Participants reporting isolated use of other nicotine containing products less than 5 times per month are eligible to participate. * Attempt to quit smoking over the duration of the study period. * Provide a Carbon Monoxide (CO) reading less than 5 parts per million (ppm) at Session 1 (D0). * History of substance abuse (other than nicotine) in the past 12 months and/or currently receiving medical treatment for substance abuse. Attendance at alcoholics anonymous or narcotics anonymous meetings will not be considered medical treatment for the purposes of this protocol. * Current alcohol consumption that exceeds 25 standard drinks/week. * Women, including all individuals assigned as "female" at birth, who are pregnant, breast feeding, or planning a pregnancy over the duration of the study period. * Any impairment including, but not limited to, visual, physical, and/or neurological impairments preventing the proper completion of the study procedures. Notable impairments will be evaluated on a case-by-case basis by the Principal Investigator and/or the Study Physician. * Color blindness. * Serious or unstable medical condition. Applicable conditions will be evaluated on a case-by-case basis by the Principal Investigator and/or the Study Physician. * Lifetime history of schizophrenia, psychosis, and/or bipolar disorder. * Current diagnosis of active major depression. Participants who maintain a diagnosis of major depression who have not experienced any major depressive episodes in the past 6 months and are stable on antidepressant medication(s) are eligible to participate. Additional, general reasons for exclusion include: * Past, current, anticipated, or pending enrollment in another research program over the study period that could potentially impact subject safety, study data, and/or the study design as determined by the Principal Investigator and/or Study Physician. * Any circumstance, medical condition, illness, disorder, adverse event (AE), or concomitant medication that could compromise participant safety or significantly impact study performance as determined by the Principal Investigator and/or Study Physician. Participants may be withdrawn for any of the aforementioned reasons at any point throughout the study. * Significant non-compliance with protocol and/or study design as determined by the Principal Investigator and/or Study Physician. Participants may be withdrawn at any point throughout the study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Center for Interdisciplinary Research for Nicotine Addiction
Philadelphia, Pennsylvania, 19104, United States
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Other studies related to the condition(s) this trial covers.
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