This is a single-center, randomized, controlled, open-label, cross-over study with healthy adult smokers. The study will investigate the nicotine pharmacokinetic (PK) profiles of two e-liquid variants used with the P4M3 Gen 2.0 e-cigarette, compared to smoking combustible cigarettes. In addition, pharmacodynamic (PD) effects (subjective effects and related behavioral assessments), will be evaluated to provide further insights on product evaluation, craving, liking, puffing topography. The study will be conducted with three periods and six sequences in a cross-over design. This study is exploratory and there is no pre-specified hypothesis to be tested.
The purpose of the study is to evaluate the nicotine pharmacokinetics (PK) profiles of two e-liquid variants used with the P4M3 Gen 2.0 e-cigarette versus cigarettes following a six minutes ad libitum use period. In addition, pharmacodynamic effects (PD), including subjective effects and related behavioral assessments, as well as human puffing topography (HPT) will be evaluated, to provide further insights on P4M3 Gen 2.0 product acceptance and product use. Safety will be assessed throughout the study. The aim is to evaluate if P4M3 Gen 2.0 can provide an acceptable alternative to smoking cigarettes in terms of both, nicotine delivery and sensorial satisfaction for current adult smokers who would otherwise continue smoking cigarettes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
36
High Point Clinical Trials Center (HPCTC)
High Point, North Carolina, United States
Background-corrected Maximum Plasma Concentration [Cmax]
To measure Cmax from 6 minutes ad libitum use for two e-liquid variants used with the P4M3 Gen 2.0 e-cigarette and for subjects smoking cigarettes.
Time frame: T0 = start of product use. From day 1 to day 3, blood was drawn 5 minutes prior to T0 (day 1 only), and then 1, 2, 4, 6, 8, 10, 12, 15, 30 minutes, 1, 2, 4, 10 and 24 hours after T0. (Note that sample taken 24 hours after T0 on day 1 and day 2 only.)
Background-corrected Time to the Maximum Concentration [Tmax]
To measure Tmax from 6 minutes ad libitum use for two e-liquid variants used with the P4M3 Gen 2.0 e-cigarette and for subjects smoking cigarettes.
Time frame: T0 = start of product use. From day 1 to day 3, blood was drawn 5 minutes prior to T0 (day 1 only), and then 1, 2, 4, 6, 8, 10, 12, 15, 30 minutes, 1, 2, 4, 10 and 24 hours after T0. (Note that sample taken 24 hours after T0 on day 1 and day 2 only.)
Area Under the Background-corrected Concentration-time Curve From Start of Product Use to Time of Last Quantifiable Concentration and Extrapolated to Infinity.
To measure the area under the background-corrected concentration-time curve (AUC) from start of product use from 6 minutes ad libitum use for two e-liquid variants used with the P4M3 Gen 2.0 e-cigarette and for subjects smoking cigarettes.
Time frame: T0 = start of product use. From day 1 to day 3, blood was drawn 5 minutes prior to T0 (day 1 only), and then 1, 2, 4, 6, 8, 10, 12, 15, 30 minutes, 1, 2, 4, 10 and 24 hours after T0. (Note that sample taken 24 hours after T0 on day 1 and day 2 only.)
Maximum Ratio of Background-corrected Concentration Over Time
To measure the maximum ratio of background-corrected concentration over time, from T0 (excluded) to Tmax (included)
Time frame: T0 = start of product use. From day 1 to day 3, blood was drawn 5 minutes prior to T0 (day 1 only), and then 1, 2, 4, 6, 8, 10, 12, 15, 30 minutes, 1, 2, 4, 10 and 24 hours after T0. (Note that sample taken 24 hours after T0 on day 1 and day 2 only.)
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