About this trial
The goal of this clinical trial is to learn how people use two generations of IQOS heated tobacco devices and how each device affects their smoking behavior and sensory experience.
The main questions it aims to answer are:
* Do participants puff differently when using the newer IQOS Iluma i compared to the older IQOS 2.4? * Does the flavor of the tobacco stick (preferred flavor vs. standard tobacco flavor) affect puffing behavior or sensory experience? * What are the differences in throat hit, mouthfeel, and satisfaction between the two devices?
Participants will:
* Attend 2 laboratory visits at the American University of Beirut * Use both the IQOS Iluma i and IQOS 2.4 devices during each visit * Have their puffing behavior recorded automatically during device use * Provide a breath sample before and after each use session * Complete short questionnaires about how each device felt and their urge to smoke
Eligibility criteria
Qualifiers
Current IQOS user (at least 3 days per week in the past 30 days)
Age 18 to 65 years
Generally healthy
Willing to provide informed written consent
Disqualifiers
Use of any tobacco products other than IQOS in the past 30 days
Chronic cardiovascular conditions, seizures, or abnormal blood pressure
Current psychiatric disorder requiring active treatment, including major depressive disorder
Regular use of prescription medications that may influence cardiovascular function, respiratory function, or nicotine metabolism (excluding vitamins or birth control)
Trial design
Treatments tested in this trial
- IQOS Iluma i with TEREA Tobacco Sticks
- IQOS 2.4 with HEETS Tobacco Sticks