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The Abuse Liability of IQOS Heated Tobacco Products Among Adults Who Smoke

Studying User Sensory Experiences and Smoking Behavior of IQOS Heated Tobacco Products to Improve Harm Reduction Among Adult Cigarette Smokers

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07688304
Enrollment
30
Registered
2026-07-07
Start date
2026-08-27
Completion date
2027-10-01
Last updated
2026-08-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tobacco

Brief summary

This clinical trial aims to evaluate user sensory experiences and smoking behavior when using IQOS heated tobacco products (HTPs) among adults who smoke cigarettes.

Detailed description

PRIMARY OBJECTIVES: I. Assess the abuse liability (appeal and sensory effects) of IQOS. II. Examine the puffing topography of IQOS. SECONDARY OBJECTIVES: I. Evaluate the impact of flavor on the sensory effects, appeal, and puffing topography of IQOS. II. Evaluate the effect of perceived harm on IQOS use behavior. EXPLORATORY OBJECTIVE: I. Examine acute changes to pulmonary health associated with IQOS use. OUTLINE: Participants are randomized to 1 of 2 arms. ARM I: Participants use IQOS HeatSticks (flavor matched to their usual cigarette) as much as desired (ad lib) over 60 minutes during laboratory visit 1. At least forty-eight hours later, participants smoke their usual brand cigarette (UBC) ad lib over 60 minutes during laboratory visit 2. ARM II: Participants smoke their UBC ad lib over 60 minutes during laboratory visit 1. At least forty-eight hours later, participants use IQOS HeatSticks (flavor matched to their usual cigarette) ad lib over 60 minutes during laboratory visit 2.

Interventions

BEHAVIORALSmoking Behavioral Research (IQOS)

Use IQOS HeatSticks (flavor matched to the participant's usual cigarette)

BEHAVIORALSmoking Behavioral Research (UBC)

Smoke UBC

Sponsors

Ohio State University Comprehensive Cancer Center
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
21 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Adults 21-65 years * Adults who smoke (defined as ≥ 5 days weekly use of either menthol or non-menthol cigarettes over the past 3 months) * Willing to provide informed consent and abstain from using nicotine products 12 hours before each visit * Willing to bring UBC to each study visit * Read, write and speak English

Exclusion criteria

* Current use of other non-combustible nicotine products (e.g., electronic \[e\]-cigarettes, HTPs; \[defined as ≥ 5 days weekly use in the past 30 days\]) * Planning to quit nicotine use and/or use of any smoking cessation medication in the past 30 days * Current diagnosis of any lung diseases (e.g., asthma, cystic fibrosis, or chronic obstructive pulmonary disease) * Self-reported unstable or significant psychiatric conditions (past/stable conditions will be allowed) * History of cardiac event or distress within the past 3 months * Deaf, hard of hearing, or have a severe motor disability * Are currently pregnant, planning to become pregnant, or breastfeeding (urine pregnancy test will be completed at each visit throughout the study)

Design outcomes

Primary

MeasureTime frameDescription
Product AppealMinute 5 of product use session, Minute 35 of product use session, Minute 60 of product use sessionParticipants will complete the Appeal and Sensory Quality questionnaire. This questionnaire will ask participants to rate each study product for appeal characteristics such as liking, willingness to use again, flavor intensity, pleasantness of taste, etc. on a scale of 0 (not at all) - 100 (extremely). Higher scores indicate greater liking, willingness to use again, flavor intensity, etc.
Product Sensory AttributesMinute 5 of product use session, Minute 35 of product use session, Minute 60 of product use sessionParticipants will rate sensory attributes using the Appeal and Sensory Quality questionnaire. This questionnaire will ask participants to rate each study product for sensory attributes such as harshness, coolness, sweetness, etc. on a scale of 0 (not at all) - 100 (extremely). Higher scores indicate greater harshness, coolness, sweetness, etc.
Economic demand breakpointMinute 60 of product use sessionThe price point at which a participant is no longer willing to pay for a stick of the study product will be determined by using a cigarette purchase task questionnaire.
Satisfaction and psychological rewardMinute 5 of product use session, Minute 35 of product use session, Minute 60 of product use sessionSatisfaction and psychological reward of study product use will be measured by the Modified Cigarette Evaluation Questionnaire (mCEQ). The mCEQ asks questions relating to satisfaction of using the study product on a scale from 0 (Not at all) - 6 (Extremely).
Abuse Liability Via Puff Topography - Total Smoking TimeMinute 60 of product use sessionWill be measured with a topography device that records frequency, duration, and flow rate of cigarette puffs. These measures are combined to inform overall cigarette puff behavior.
Abuse Liability Via Puff Topography - Average Puff DurationMinute 60 of product use sessionWill be measured with a topography device that records frequency, duration, and flow rate of cigarette puffs. These measures are combined to inform overall cigarette puff behavior.
Abuse Liability Via Puff Topography - Average Flow RateMinute 60 of product use sessionWill be measured with a topography device that records frequency, duration, and flow rate of cigarette puffs. These measures are combined to inform overall cigarette puff behavior.
Abuse Liability Via Puff Topography - Average Inter-Puff IntervalMinute 60 of product use sessionWill be measured with a topography device that records frequency, duration, and flow rate of cigarette puffs. These measures are combined to inform overall cigarette puff behavior.
Abuse Liability Via Puff Topography - Average Puff VolumeMinute 60 of product use sessionWill be measured with a topography device that records frequency, duration, and flow rate of cigarette puffs. These measures are combined to inform overall cigarette puff behavior.
Craving/withdrawalMinute 0 before product use session, Minute 5 of product use session, Minute 35 of product use session, minute 60 of product use sessionNicotine withdrawal and craving symptoms will be measured using the Minnesota Nicotine Withdrawal Scale (MNWS)

Secondary

MeasureTime frameDescription
Spirometry FEV1Minute 0 before start of product use session and minute 60 of product use sessionSpirometry will be used to measure forced expiratory volume (FEV1)
Spirometry FVCMinute 0 before start of product use session, Minute 60 of product use sessionSpirometry will be used to measure forced vital capacity (FVC)
Spirometry FEV1/FVCMinute 0 before start of product use session, Minute 60 of product use sessionSpirometry will be used to measure FEV1/FVC
Used filter countMinute 60 of product use sessionWill assess the number of study product consumed
Harm PerceptionMinute 60 of product use sessionA harm perception questionnaire will be used to assess the relative and absolute perceived harm of IQOS products.

Countries

United States

Contacts

CONTACTThe Ohio State University Comprehensive Cancer Center
OSUCCCClinicaltrials@osumc.edu800-293-5066
PRINCIPAL_INVESTIGATORAlayna P Tackett, PhD

Ohio State University Comprehensive Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 1, 2026