- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04514471
Feasibility Study - Filter Ventilation
August 3, 2021 updated by: Masonic Cancer Center, University of Minnesota
Feasibility of Conducting a Telehealth Study Assessing the Removal of Filter Ventilation on Smoking Behavior and Biomarkers
This open label, between-subject, randomized multi-center pilot study will assess the feasibility of conducting a study remotely with telehealth visits to assess the effect of cigarettes with minimal filter ventilation vs. moderate filter ventilation on smoking behavior and biomarkers of tobacco toxicant exposure.
Subjective measures, alveolar carbon monoxide, blood pressure and cigarettes per a day will be collected remotely.
Biological samples will be collected at home and mailed to the study clinic.
Study Overview
Status
Withdrawn
Conditions
Intervention / Treatment
Detailed Description
Smokers of cigarettes with about 16-30% ventilation in their conventional cigarettes who meet eligibility criteria will enter 3 weeks of monitoring of usual brand smoking.
Subjects will then be randomly assigned for a period of 6 weeks to one of two conditions: 1) ventilated cigarettes; or 2) unventilated cigarettes.
Subjects in each condition will be unblinded to simulate real world conditions.
Subjects are provided with a debit card (ClinCard) that has been loaded with the appropriate amount of money to cover self-purchased usual brand cigarette in baseline and the assigned study cigarettes during intervention.
Weekly telehealth visits will be conducted during baseline and the 6 weeks on study cigarettes to collect study measures, followed by a one month follow-up.
Study Type
Interventional
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Minnesota
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Minneapolis, Minnesota, United States, 55405
- University of Minnesota
-
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Ohio
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Columbus, Ohio, United States, 43210
- The Ohio State University Comprehensive Cancer Center
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
21 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- 21 years of age or older
- Regular cigarette smoker
- Currently smoking an eligible brand
- Generally good health
- Access to smartphone or tablet and a device with a functioning camera for telehealth visits. Also must have internet access.
Exclusion Criteria:
- Unstable health
- Uncontrolled high blood pressure
- Pregnant or breast-feeding
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Unventilated Filter Cigarette
Conventional cigarette with approximately 6-7% (non-menthol) and 5-6% filter ventilation (menthol).
|
Currently marketed unventilated cigarettes
|
Active Comparator: Ventilated Filter Cigarette
Conventional cigarette with approximately 22-26% (non-menthol) and 35-38% filter ventilation (menthol).
|
Currently marketed ventilated cigarettes
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Feasibility of approach - Drop outs
Time Frame: Baseline through Week 6
|
Percent of drop-outs in baseline and post-randomization.
|
Baseline through Week 6
|
Feasibility of approach - Missing Data
Time Frame: Baseline through Week 6
|
Extent (percent) of missing data
|
Baseline through Week 6
|
Feasibility of approach - Participant Satisfaction
Time Frame: Baseline through Week 6
|
Degree of difficulty collecting data through telehealth visits, mailing in biosamples and self-purchase of cigarettes (descriptive statistics (e.g., percent or mean responses)
|
Baseline through Week 6
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Total Nicotine Equivalents (TNE)
Time Frame: effect size for each arm calculated as the baseline minus the 6 week value divided by the SD of this difference
|
The sum of nicotine and its metabolite concentrations used for evaluating nicotine exposure.
|
effect size for each arm calculated as the baseline minus the 6 week value divided by the SD of this difference
|
Change in 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL)
Time Frame: effect size for each arm calculated as the baseline minus the 6 week value divided by the SD of this difference
|
One of the tobacco specific nitrosamines, one of the most important groups of carcinogens in tobacco products, which are formed from nicotine during the curing and processing of tobacco.
|
effect size for each arm calculated as the baseline minus the 6 week value divided by the SD of this difference
|
Change in mean cigarettes per day (CPD)
Time Frame: effect size for each arm calculated as the baseline minus the 6 week value divided by the SD of this difference
|
The change in mean cigarettes per day (CPD) based on 7 day ITR data before visit 00 and week 6 visit.
|
effect size for each arm calculated as the baseline minus the 6 week value divided by the SD of this difference
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Dorothy Hatsukami, PH.D, Masonic Cancer Center, University of Minnesota
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Anticipated)
October 1, 2021
Primary Completion (Anticipated)
February 1, 2022
Study Completion (Anticipated)
July 31, 2022
Study Registration Dates
First Submitted
August 12, 2020
First Submitted That Met QC Criteria
August 12, 2020
First Posted (Actual)
August 17, 2020
Study Record Updates
Last Update Posted (Actual)
August 10, 2021
Last Update Submitted That Met QC Criteria
August 3, 2021
Last Verified
August 1, 2021
More Information
Terms related to this study
Other Study ID Numbers
- 2020LS110
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Undecided
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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