Last reviewed · How we verify

NCT05876091

Effects of Tobacco Flavoring and Liquid Composition on Vaping Topography

Terminated NA Results posted Last updated 22 December 2025
What this trial tests

NA trial testing Vaping in Tobacco-Related Carcinoma in 21 participants. Terminated before completion.

Timeline
30 August 2023
Primary endpoint
8 October 2024
29 October 2024

Quick facts

Lead sponsorRoswell Park Cancer Institute
PhaseNA
StatusTerminated
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposeprevention
Enrollment21
Start date30 August 2023
Primary completion8 October 2024
Estimated completion29 October 2024
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

Roswell Park Cancer Institute

Who can join

Adults 21 to 55, any sex, with Tobacco-Related Carcinoma. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Puff Topography: Puff Count Primary · Single Session, Approximately 2 hours in duration

Measure of vaping topography counting total number of puffs.

GroupValue95% CI
Session 1: Own Brand Puff Count Ad Lib13.9± 2.3
Session 1: Own Brand Puff Count Directed6.4± 0.8
Sessions 2-5: Cowboy Vaping Liquid Puff Count Ad Lib13.2± 2.2
Sessions 2-5: Cowboy Vaping Liquid Puff Count Directed5.8± 0.8
Sessions 2-5: RY4 Double Vaping Liquid Puff Count Ad Lib15.4± 3.1
Sessions 2-5: RY4 Double Vaping Liquid Puff Count Directed5.9± 0.9
Sessions 2-5: Unflavored Vaping Liquid Puff Count Ad Lib13.2± 2.2
Sessions 2-5: Unflavored Vaping Liquid Puff Count Directed5.8± 0.9
Sessions 2-5: Red Oak Vaping Liquid Puff Count Ad Lib13.0± 2.2
Sessions 2-5: Red Oak Vaping Liquid Puff Count Directed6.3± 1.2
Session 6-7: Synthetic Nicotine Liquid Puff Count Ad Lib14.3± 2.4
Session 6-7: Synthetic Nicotine Liquid Puff Count Directed7.1± 0.9
Puff Topography: Puff Duration (in Seconds) Primary · Single Session, Approximately 2 hours in duration

Measure of vaping topography counting duration of puffs in seconds.

GroupValue95% CI
Session 1: Own Brand Puff Duration Ad Lib2.2± 0.3
Session 1: Own Brand Puff Duration Directed3.5± 0.3
Sessions 2-5: Cowboy Vaping Liquid Puff Duration Ad Lib2.3± 0.3
Sessions 2-5: Cowboy Vaping Liquid Puff Count Directed3.1± 0.3
Sessions 2-5: RY4 Double Vaping Liquid Puff Count Ad Lib2.5± 0.4
Sessions 2-5: RY4 Double Vaping Liquid Puff Count Directed3.0± 0.3
Sessions 2-5: Unflavored Vaping Liquid Puff Count Ad Lib2.3± 0.3
Sessions 2-5: Unflavored Vaping Liquid Puff Count Directed3.2± 0.3
Sessions 2-5: Red Oak Vaping Liquid Puff Count Ad Lib2.1± 0.2
Sessions 2-5: Red Oak Vaping Liquid Puff Count Directed2.9± 0.3
Session 6-7: Synthetic Nicotine Liquid Puff Duration Ad Lib2.4± 0.4
Session 6-7: Synthetic Nicotine Liquid Puff Duration Directed3.0± 0.3
Puff Topography: Inter Puff Interval (IPI) Primary · Single Session, Approximately 2 hours in duration

Measure of vaping topography counting the interval between puffs in seconds.

GroupValue95% CI
Session 1: Own Brand Inter Puff Interval Ad Lib82.2± 14.0
Session 1: Own Brand Inter Puff Interval Directed55.2± 6.1
Sessions 2-5: Cowboy Vaping Inter Puff Interval Ad Lib61.4± 10.7
Sessions 2-5: Cowboy Vaping Liquid Inter Puff Interval Directed58.0± 4.2
Sessions 2-5: RY4 Double Vaping Liquid Inter Puff Interval Ad Lib71.6± 10.3
Sessions 2-5: RY4 Double Vaping Liquid Inter Puff Interval Directed54.2± 3.6
Sessions 2-5: Unflavored Vaping Liquid Inter Puff Interval Ad Lib71.6± 8.7
Sessions 2-5: Unflavored Vaping Liquid Inter Puff Interval Directed56.7± 4.0
Sessions 2-5: Red Oak Vaping Liquid Inter Puff Interval Ad Lib55.1± 8.1
Sessions 2-5: Red Oak Vaping Liquid Inter Puff Interval Directed60.6± 5.4
Session 6-7: Synthetic Nicotine Liquid Inter Puff Interval Ad Lib84.6± 12.0
Session 6-7: Synthetic Nicotine Liquid Inter Puff Interval Directed59.3± 4.1
Puff Topography: Puff Volume Primary · Single Session, Approximately 2 hours in duration

Measure of vaping topography measuring the volume per puff in ml.

GroupValue95% CI
Session 1: Own Brand Puff Volume Ad Lib63.5± 13.2
Session 1: Own Brand Puff Volume Directed102.2± 16.1
Sessions 2-5: Cowboy Vaping Liquid Puff Volume Ad Lib66.2± 11.4
Sessions 2-5: Cowboy Vaping Liquid Puff Volume Directed81.4± 14.7
Sessions 2-5: RY4 Double Vaping Liquid Puff Volume Ad Lib83.6± 17.2
Sessions 2-5: RY4 Double Vaping Liquid Puff Volume Directed103.1± 18.6
Sessions 2-5: Unflavored Vaping Liquid Puff Volume Ad Lib63.9± 8.1
Sessions 2-5: Unflavored Vaping Liquid Puff Volume Directed88.3± 13.5
Sessions 2-5: Red Oak Vaping Liquid Puff Volume Ad Lib57.5± 6.5
Sessions 2-5: Red Oak Vaping Liquid Puff Volume Directed74.9± 10.61
Session 6-7: Synthetic Nicotine Liquid Puff Volume Ad Lib86.7± 14.9
Session 6-7: Synthetic Nicotine Liquid Puff Volume Directed96.3± 13.5
Puff Topography: Flow Rate Primary · Single Session, Approximately 2 hours in duration

Measure of vaping topography measuring the rate of flow per puff in milliliters per second.

GroupValue95% CI
Session 1: Own Brand Flow Rate Ad Lib28.4± 3.4
Session 1: Own Brand Flow Rate Directed28.7± 3.3
Sessions 2-5: Cowboy Vaping Liquid Flow Rate Ad Lib28.2± 2.3
Sessions 2-5: Cowboy Vaping Liquid Flow Rate Directed25.5± 2.7
Sessions 2-5: RY4 Double Vaping Liquid Flow Rate Ad Lib29.3± 2.4
Sessions 2-5: RY4 Double Vaping Liquid Flow Rate Directed24.8± 2.6
Sessions 2-5: Unflavored Vaping Liquid Flow Rate Ad Lib27.8± 2.9
Sessions 2-5: Unflavored Vaping Liquid Flow Rate Directed25.2± 2.8
Sessions 2-5: Red Oak Vaping Liquid Flow Rate Ad Lib27.8± 2.4
Sessions 2-5: Red Oak Vaping Liquid Flow Rate Directed24.2± 1.9
Session 6-7: Synthetic Nicotine Liquid Flow Rate Ad Lib33.7± 2.1
Session 6-7: Synthetic Nicotine Liquid Flow Rate Directed31.4± 2.1
Subjective Questionnaires of Product Evaluation Secondary · Single Session, Approximately 2 hours in duration

Will be assessed by Duke Sensory Scale

Draw (0 "less draw" - 100 "more draw)
GroupValue95% CI
Session 1: Own Brand Ad Lib72.3± 7.3
Session 1: Own Brand Directed77.0± 5.7
Sessions 2-5: Cowboy Vaping Liquid Ad Lib69.7± 4.4
Sessions 2-5: Cowboy Vaping Liquid Directed64.1± 5.6
Sessions 2-5: RY4 Double Vaping Liquid Ad Lib61.1± 6.5
Sessions 2-5: RY4 Double Vaping Liquid Directed71.6± 4.5
Sessions 2-5: Red Oak Vaping Liquid Ad Lib72.9± 4.7
Sessions 2-5: Red Oak Vaping Liquid Directed75.5± 4.2
Sessions 2-5: Unflavored Vaping Liquid Ad Lib68.8± 5.0
Sessions 2-5: Unflavored Vaping Liquid Directed72.5± 4.7
Sessions 6-7: Synthetic Nicotine Ad Lib71.9± 5.0
Sessions 6-7: Synthetic Nicotine Directed74.2± 5.3
Pleasantness (-100 "less pleasant" - +100 "more pleasant")
GroupValue95% CI
Session 1: Own Brand Ad Lib45.2± 12.0
Session 1: Own Brand Directed33.2± 15.9
Sessions 2-5: Cowboy Vaping Liquid Ad Lib-3.2± 15.3
Sessions 2-5: Cowboy Vaping Liquid Directed-32.6± 15.5
Sessions 2-5: RY4 Double Vaping Liquid Ad Lib3.9± 13.1
Sessions 2-5: RY4 Double Vaping Liquid Directed-2.5± 13.3
Sessions 2-5: Red Oak Vaping Liquid Ad Lib16.4± 15.2
Sessions 2-5: Red Oak Vaping Liquid Directed37.7± 15.7
Sessions 2-5: Unflavored Vaping Liquid Ad Lib-2.0± 14.8
Sessions 2-5: Unflavored Vaping Liquid Directed22.4± 16.2
Sessions 6-7: Synthetic Nicotine Ad Lib26.2± 11.6
Sessions 6-7: Synthetic Nicotine Directed21.2± 12.9
Tingling Sensation (0 "less tingling sensation" - 100 "more tingling sensation")
GroupValue95% CI
Session 1: Own Brand Ad Lib50.2± 11.4
Session 1: Own Brand Directed34.8± 8.6
Sessions 2-5: Cowboy Vaping Liquid Ad Lib34.2± 6.6
Sessions 2-5: Cowboy Vaping Liquid Directed44.4± 4.9
Sessions 2-5: RY4 Double Vaping Liquid Ad Lib38.9± 6.5
Sessions 2-5: RY4 Double Vaping Liquid Directed44.7± 7.8
Sessions 2-5: Red Oak Vaping Liquid Ad Lib25.4± 5.3
Sessions 2-5: Red Oak Vaping Liquid Directed45.1± 6.3
Sessions 2-5: Unflavored Vaping Liquid Ad Lib36.2± 5.6
Sessions 2-5: Unflavored Vaping Liquid Directed33.4± 5.1
Sessions 6-7: Synthetic Nicotine Ad Lib27.8± 5.3
Sessions 6-7: Synthetic Nicotine Directed29.8± 5.7
Product Evaluation Score: Satisfaction (1 "not at all" - 7 "extremely")
GroupValue95% CI
Session 1: Own Brand Ad Lib4.8± 0.4
Session 1: Own Brand Directed4.2± 0.4
Sessions 2-5: Cowboy Vaping Liquid Ad Lib2.8± 0.3
Sessions 2-5: Cowboy Vaping Liquid Directed2.6± 0.4
Sessions 2-5: RY4 Double Vaping Liquid Ad Lib2.7± 0.3
Sessions 2-5: RY4 Double Vaping Liquid Directed3.0± 0.4
Sessions 2-5: Red Oak Vaping Liquid Ad Lib3.1± 0.4
Sessions 2-5: Red Oak Vaping Liquid Directed3.4± 0.4
Sessions 2-5: Unflavored Vaping Liquid Ad Lib3.1± 0.4
Sessions 2-5: Unflavored Vaping Liquid Directed2.9± 0.4
Sessions 6-7: Synthetic Nicotine Ad Lib3.4± 0.3
Sessions 6-7: Synthetic Nicotine Directed3.4± 0.3
Product Evaluaton Sore: Relief (1 "not at all" - 7 "extremely")
GroupValue95% CI
Session 1: Own Brand Ad Lib5.3± 0.4
Session 1: Own Brand Directed4.7± 0.6
Sessions 2-5: Cowboy Vaping Liquid Ad Lib3.9± 0.3
Sessions 2-5: Cowboy Vaping Liquid Directed4.4± 0.3
Sessions 2-5: RY4 Double Vaping Liquid Ad Lib4.0± 0.3
Sessions 2-5: RY4 Double Vaping Liquid Directed4.2± 0.3
Sessions 2-5: Red Oak Vaping Liquid Ad Lib4.3± 0.3
Sessions 2-5: Red Oak Vaping Liquid Directed4.1± 0.3
Sessions 2-5: Unflavored Vaping Liquid Ad Lib4.5± 0.3
Sessions 2-5: Unflavored Vaping Liquid Directed4.5± 0.3
Sessions 6-7: Synthetic Nicotine Ad Lib4.8± 0.3
Sessions 6-7: Synthetic Nicotine Directed4.7± 0.4

Sponsor's own description

This clinical trial tests the effect of tobacco flavor and liquid composition on the way a person puffs on a vape (topography). In general, tobacco products are designed with sensory factors in mind, such as flavor, to increase the appeal. Flavors and the composition of nicotine, either made in a lab (synthetic) or from tobacco, may create positive sensory effects, such as look, feel and taste, and influence smoking behavior and willingness to try different types of cigarettes. Understanding how nicotine vaping products are used is important in assessing individual and population level health risks. Vape flavors and synthetic nicotine may be related to harmful effects on health from vaping and may impact the appeal, risk beliefs and vaping topography.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

Verify or expand the search:

Other trials of Vaping

Trials testing the same drug.

Other recruiting trials for Tobacco-Related Carcinoma

Currently open trials in the same condition.

Other Roswell Park Cancer Institute trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05876091.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing