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Pharmacokinetics, Subjective Effects, and Abuse Liability of Nicotine Salt-Based Vaping Products With Tobacco or Unflavored E-liquids, SALTVAPE Study

Nicotine Dependence Clinical Trial

Official title:
Pharmacokinetics, Subjective Effects, and Abuse Liability of Nicotine Salt-Based Vaping Products With Tobacco or Unflavored E-liquids[SALTVAPE Study]

Clinical Trial Summary

This trial studies activity of time (pharmacokinetics), subjective effects, and abuse liability of nicotine salt-based vaping products with tobacco or e-liquids. This study aims to determine and compare the levels of nicotine delivered to the bloodstream from nicotine salt and free-base nicotine e-liquid solutions.

Clinical Trial Description

PRIMARY OBJECTIVES: I. To determine the effect of nicotine salt (nicotine benzoate) and free-base nicotine in different flavored e-liquid solutions on puffing behaviors and systemic exposure to nicotine from electronic nicotine delivery systems (ENDS) by: Ia. Assessing short-term effects on nicotine cravings, withdrawal, and satisfaction from single use of ENDS refilled with flavored nicotine salt or flavored free-base nicotine solutions with two different flavors (tobacco or unflavored) in current daily ENDS users following an overnight fast. Ib. Comparing users' perceptions and preferences towards inhaling vapors containing nicotine salt (nicotine benzoate) or freebase nicotine with two different flavors (tobacco and unflavored) versus their regular brand. II. This project provides important information on whether the pharmacokinetics of nicotine delivery differ between salt and free-base forms of e-liquid of equivalent nominal concentration using the same device, and whether the previously observed effects of flavors on subjective effects differ between salt and free-base forms. III. Determine whether maximum concentration of nicotine in plasma (Cmax) or time to maximum concentration (Tmax) differ between free-base and salt-based versions of the same liquid, controlling for flavoring and nominal nicotine concentration [main effect of salt]. IV. Determine whether the effect of flavoring on subjective effects (e.g., harshness, liking) differs between matched free-base and salt-based e-liquids [flavor X salt interaction]. EXPLORATORY OBJECTIVE: I. Examine effects of salt and flavoring on abuse liability using the Experimental Tobacco Marketplace (ETM). OUTLINE: After 8-10 hours after nicotine abstinence, participants attend 4 vaping sessions over 2-2.5 hours, 5-7 days apart. During each session, participants take 20 puffs over 10 minutes (one puff every 30 seconds) of vaporizer filled with freebased nicotine electronic (e)-liquid solution of unflavored, free-based nicotine e-liquid solution of tobacco flavor, salt-based nicotine e-liquid solution of unflavored, or salt-based nicotine e-liquid solution of tobacco flavor assigned in a random order. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04231539
Study type Interventional
Source Roswell Park Cancer Institute
Contact
Status Recruiting
Phase N/A
Start date February 18, 2020
Completion date August 18, 2024
View Details
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