Puff Topography and Sensory Effects Across IQOS Device Generations
Puff Topography and Sensory Effects Across IQOS Device Generations: A Randomized Crossover Study
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
Přehled studie
Postavení
Postavení
Podmínky
Podmínky
Intervence / Léčba
Intervence / Léčba
Detailní popis
Typ studie
Typ studie
Zápis (Odhadovaný)
Zápis
Fáze
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
Studijní kontakt
- Jméno: Soha Talih, PhD
- Telefonní číslo: 3627 +961-1-350000
- E-mail: st38@aub.edu.lb
Studijní záloha kontaktů
- Jméno: Mario El Hourani, PhD
- Telefonní číslo: +96170715263
- E-mail: me217@aub.edu.lb
Studijní místa
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Beirut, Libanon
- Nábor
- Clinical Aerosol Technology Laboratory (CATLAB), American University of Beirut
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Beirut
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Beirut, Beirut, Libanon, 1107 2020
- Nábor
- Clinical Aerosol Technology Laboratory (CATLAB), American University of Beirut
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Kontakt:
- Dr. Soha Talih, PHD
- Telefonní číslo: 3627 +9611350000
- E-mail: st38@aub.edu.lb
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-
Kritéria účasti
Kritéria způsobilosti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
- Starší dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- 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
- Willing to attend all laboratory visits
- Willing to abstain from all nicotine and tobacco products for at least 12 hours before each visit
Exclusion Criteria:
- 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)
- Use of cocaine, opioids, benzodiazepines, or methamphetamines in the past month
- Marijuana use on more than 15 days per month
- Current pregnancy or breastfeeding
- Plans to quit nicotine or tobacco products within the next 30 days
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Základní věda
- Přidělení: Randomizované
- Intervenční model: Crossover Assignment
- Maskování: Žádné (otevřený štítek)
Počet zbraní
Zbraně a zásahy
Skupina účastníků / ArmSkupina účastníků / Arm |
Intervence / LéčbaIntervence / Léčba |
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Experimentální: IQOS Iluma i (Induction Heating)
Participants use the IQOS Iluma i device with TEREA tobacco sticks under two flavor conditions (preferred flavor and standardized Amber flavor) across study visits.
The IQOS Iluma i uses induction-based heating technology.
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The IQOS Iluma i is an induction-heated tobacco device used with TEREA STICKS.
Participants use the device ad libitum during two smoking bouts (preferred flavor and Amber flavor conditions) across two study visits.
Puff topography is recorded continuously during use.
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Aktivní komparátor: IQOS 2.4 (Blade Heating)
Participants use the IQOS 2.4 device with HEETS tobacco sticks under two flavor conditions (preferred flavor and standardized Amber flavor) across study visits.
The IQOS 2.4 uses ceramic blade heating technology.
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The IQOS 2.4 is a ceramic blade-heated tobacco device used with HEETS tobacco sticks.
Participants use the device ad libitum during two smoking bouts (preferred flavor and Amber flavor conditions) across two study visits.
Puff topography is recorded continuously during use.
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Co je měření studie?
Primární výstupní opatření
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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Chemosensory Effects - Mouthful
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Chemosensory Effects: Three sensory feedback items assessed after each smoking bout: (1) Mouthful - amount of aerosol filling the mouth, rated on a 1-5 visual analog scale (1 = barely any smoke to 5 = a lot of smoke); higher scores indicate greater mouthful sensation.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Chemosensory Effects - Ease of draw
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Chemosensory Effects: Three sensory feedback items assessed after each smoking bout: (2) Ease of draw - effort required to draw a puff, rated on a 1-5 visual analog scale (1 = easy to 5 = hard); higher scores indicate greater effort required.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Chemosensory Effects - Throat hit
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Chemosensory Effects: Three sensory feedback items assessed after each smoking bout: (3) Throat hit - intensity of throat sensation, rated on a 0-100 General Labeled Magnitude Scale (0 = barely detectable to 100 = strongest imaginable); higher scores indicate greater throat hit intensity.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Mean Puff Duration
Časové okno: Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Mean duration (seconds) of each puff recorded continuously during ad-libitum use of each device using the eTOP puff topography instrument.
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Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Number of Puffs Per Stick
Časové okno: Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Total number of puffs taken per tobacco stick during each ad-libitum smoking bout, recorded using the eTOP puff topography instrument.
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Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Mean Inter-Puff Interval
Časové okno: Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Mean time (seconds) between the end of one puff and the start of the next, recorded continuously during ad-libitum use of each device using the eTOP puff topography instrument.
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Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Mean Puff Flow Rate
Časové okno: Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Mean peak puff flow rate (mL/s) recorded continuously during ad-libitum use of each device using the eTOP puff topography instrument.
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Continuously during each ad-libitum smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Urge to Use IQOS - Factor 1: desire/intention
Časové okno: Immediately before and immediately after each smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Urge to use IQOS assessed using a 10-item adaptation of the Questionnaire on Smoking Urges-Brief (QSU-Brief), rated on a 7-point scale (1 = Strongly Disagree to 7 = Strongly Agree).
Higher scores indicate greater urge to use IQOS.
Total score and subscale scores (Factor 1: desire/intention; Factor 2: negative reinforcement) will be reported.
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Immediately before and immediately after each smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Urge to Use IQOS - Factor 2: negative reinforcement
Časové okno: Immediately before and immediately after each smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Urge to use IQOS assessed using a 10-item adaptation of the Questionnaire on Smoking Urges-Brief (QSU-Brief), rated on a 7-point scale (1 = Strongly Disagree to 7 = Strongly Agree).
Higher scores indicate greater urge to use IQOS.
Total score and subscale scores (Factor 1: desire/intention; Factor 2: negative reinforcement) will be reported.
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Immediately before and immediately after each smoking bout, at Visit 1 (day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - satisfaction
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - taste
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - throat/chest sensations
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - calm
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - awake
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - irritable
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - concentration
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - hungry
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - dizziness
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - nausea
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
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Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Subjective Effects of IQOS Use - craving relief
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
|
Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
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Subjective Effects of IQOS Use - enjoyment
Časové okno: Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
|
12-item questionnaire assessing subjective effects of IQOS use, rated on a 7-point scale (1 = Not at all to 7 = Extremely).
Higher scores indicate greater intensity of the effect.
Items assess: satisfaction, taste, throat/chest sensations, calming, alertness, irritability relief, concentration, hunger suppression, dizziness, nausea, craving relief, and enjoyment.
Each item is reported individually.
The questionnaire is a modified version of the Subjective Effects Questionnaire (SEQ), adapted for IQOS.
|
Immediately after each smoking bout, at Visit 1 (Day 1) and Visit 2 (Visit 2 scheduled at least 48 hours after Visit 1)
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Spolupracovníci a vyšetřovatelé
Sponzor
Sponzor
Vyšetřovatelé
Vyšetřovatelé
- Vrchní vyšetřovatel: Soha Talih, American University of Beirut Medical Center
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Aktuální)
Začátek studia
Primární dokončení (Odhadovaný)
Primární dokončení
Dokončení studie (Odhadovaný)
Dokončení studie
Termíny zápisu do studia
První předloženo
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
První zveřejněno
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Poslední zveřejněná aktualizace
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
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Další identifikační čísla studie
- BIO-2026-0012
- AUB (Jiné číslo grantu/financování: American University of Beirut)
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Popis plánu IPD
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