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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Soha Talih, PhD
- Telefonnummer: 3627 +961-1-350000
- E-Mail: st38@aub.edu.lb
Studieren Sie die Kontaktsicherung
- Name: Mario El Hourani, PhD
- Telefonnummer: +96170715263
- E-Mail: me217@aub.edu.lb
Studienorte
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Beirut, Libanon
- Rekrutierung
- Clinical Aerosol Technology Laboratory (CATLAB), American University of Beirut
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Beirut
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Beirut, Beirut, Libanon, 1107 2020
- Rekrutierung
- Clinical Aerosol Technology Laboratory (CATLAB), American University of Beirut
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Kontakt:
- Dr. Soha Talih, PHD
- Telefonnummer: 3627 +9611350000
- E-Mail: st38@aub.edu.lb
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Zufällig
- Interventionsmodell: Crossover-Aufgabe
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Experimental: 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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Aktiver Komparator: 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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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Chemosensory Effects - Mouthful
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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 - calm
Zeitfenster: 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 - awake
Zeitfenster: 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 - irritable
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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 - nausea
Zeitfenster: 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 - craving relief
Zeitfenster: 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 - enjoyment
Zeitfenster: 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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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Soha Talih, American University of Beirut Medical Center
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- BIO-2026-0012
- AUB (Andere Zuschuss-/Finanzierungsnummer: American University of Beirut)
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Beschreibung des IPD-Plans
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Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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