Study Stopped
The study was terminated due to excessive attrition rates.
Japanese Post-Market Cohort Study
An Observational Cohort Study in Japan to Assess the Patterns of Product Use and Changes in Health Outcomes Associated With the Use of HeatSticks With the IQOS Tobacco Heating System
1 other identifier
observational
1,124
1 country
1
Brief Summary
The objectives and endpoints of this study were analyzed in the study population of adults eligible to purchase tobacco products. The study was planned to describe the patterns of use of tobacco and nicotine containing products and self-reported health outcomes and health related events in CC (Cigarette) smokers and IQOS users in Japan. The initial study record (posted on ClinicalTrials.gov) included a clinical sub-study designed to estimate population level differences in the biomarkers of exposure and clinical risk endpoints among IQOS users, CC smokers and never-smokers. However, due to low recruitment and retention of subjects, the clinical sub-study was terminated in May 2017, and for the same reasons the main study was terminated in March 2018. The study protocol was updated to remove the clinical sub-study objectives. The study initially included 18 outcome measures. Due to study termination leading to a shortened follow-up period and a smaller sample size, only 7 of these outcome measures could be assessed and the other outcome measures planned were either unattainable or uninformative.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Apr 2016
Typical duration for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2016
CompletedFirst Submitted
Initial submission to the registry
November 17, 2016
CompletedFirst Posted
Study publicly available on registry
January 13, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 23, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
May 30, 2018
CompletedResults Posted
Study results publicly available
September 19, 2024
CompletedSeptember 19, 2024
May 1, 2024
2 years
November 17, 2016
April 8, 2019
May 7, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (9)
Product Consumption
To measure the mean numbers of cigarettes smoked and IQOS with HeatSticks used, mean numbers/times of Other Tobacco and Nicotine containing Products (OTP) used. OTP: included all other tobacco and nicotine-containing products except IQOS.
CC smokers: enrollment, IQOS users: 3-18 Months IQOS use time
Product Use Patterns
To describe product use patterns in CC smokers and IQOS users by product use categories. Primarily IQOS: ≥70% consumption of IQOS, Primarily CC: ≥70% consumption of CC, Mixed IQOS-CC: consumption of IQOS in (30% to 70%) AND consumption of CC in (30% to 70%), Mixed IQOS-OTP: consumption of IQOS in (30% to 70%) AND consumption of OTP in (30% to 70%), Mixed CC-OTP: consumption of CC in (30% to 70%) AND consumption of OTP in (30% to 70%), Non-User/smoker: Total consumption of all products = 0, Other: Does not fit in any of the above categories and no 'missing'.
IQOS users: 3-18 months IQOS use, CC smokers from enrollment up to 15 months of follow-up
Rate of Product Use
To measure the percentage of product use in IQOS users based on IQOS use time. * IQOSi = percentage of IQOS use at time point i, * CCi = percentage of CC use at time point i, * OTPi = percentage of other tobacco products (OTP) use at time point i.
IQOS users: 3-18 months IQOS use time
Tobacco and Nicotine-containing Products Cessation
To measure rate of cessation from all tobacco and nicotine-containing products in CC smokers and IQOS users
IQOS users: 3-18 months IQOS use time, CC smokers from enrollment up to 15 months of follow-up
Demographics of Tobacco and Nicotine-containing Product Users
To describe the demographics characteristics of IQOS users by product use category: Primarily IQOS: ≥70% consumption of IQOS, Primarily CC: ≥70% consumption of CC, Mixed IQOS-CC: consumption of IQOS in (30% to 70%) AND consumption of CC in (30% to 70%), Mixed IQOS-OTP: consumption of IQOS in (30% to 70%) AND consumption of OTP in (30% to 70%), Mixed CC-OTP: consumption of CC in (30% to 70%) AND consumption of OTP in (30% to 70%), Non-Use: Total consumption of all products= 0, Other: Does not fit in any of the above categories and no 'missing'.
IQOS users at enrollment
Smoking History (Duration)
To record the smoking history (duration) in CC smokers and IQOS users, measured in years.
At enrollment
Smoking History (Intensity)
To record the smoking history (intensity) in CC smokers and IQOS users, measured in pack-years. One pack year is equivalent to smoking 20 cigarettes a day for one year.
At enrollment
Product Usage and Behaviors (Prior to IQOS Use): Smoking Duration
To measure smoking duration among CC smokers who started to use IQOS during follow-up, measured in years.
From enrollment up to 15 months follow-up
Product Usage and Behaviors (Prior to IQOS Use): Smoking Intensity
To measure smoking intensity among CC smokers who started to use IQOS during follow-up, measured in pack years. One pack year is equivalent to smoking 20 cigarettes a day for one year.
From enrollment up to 15 months follow-up
Study Arms (2)
IQOS Users
The criteria defining an "IQOS user" are listed in the section "Eligibility".
Cigarette (CC) Smokers
The criteria defining a "CC smoker" are listed in the section "Eligibility".
Eligibility Criteria
Adults (female or male) Japanese IQOS users and CC smokers.
You may qualify if:
- Adult tobacco users in Japan (at least 20 years of age)
- The participant is Japanese
- Participant is able to understand the information provided in the Informed Consent form (ICF)
- Signed ICF
- Willing to participate in the study and has access to the internet
- For IQOS users:
- Is currently using IQOS with HeatSticks
- Has used at least 100 HeatSticks with IQOS in their lifetime, and
- Has used IQOS with HeatSticks for 2 months or more
- For CC smokers:
- Is currently using CC
- Is not currently using IQOS with HeatSticks, and
- Has used at least 100 CC in their lifetime
You may not qualify if:
- Tobacco industry employees
- Employed by the Sponsor, CRO or Clinical Site
- For IQOS users:
- More than 12 months of IQOS use
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Uwatoko Clinic
Ōzone, Nagoya, 462-0825, Japan
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Due to study termination leading to a shortened follow-up period and a smaller sample size, only 7 outcome measures could be assessed and the other outcome measures originally planned were either unattainable or uninformative.
Results Point of Contact
- Title
- Kunihiko Uwatoko, MD
- Organization
- Uwatoko Clinic
Study Officials
- PRINCIPAL INVESTIGATOR
Kunihiko Uwatoko, MD
Uwatoko Clinic
- STUDY CHAIR
Pierpaolo Magnani
Philip Morris Products S.A.
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 17, 2016
First Posted
January 13, 2017
Study Start
April 1, 2016
Primary Completion
March 23, 2018
Study Completion
May 30, 2018
Last Updated
September 19, 2024
Results First Posted
September 19, 2024
Record last verified: 2024-05
Data Sharing
- IPD Sharing
- Will not share