Electronic nicotine delivery devices (ENDS) are novel products that electronically generate a nicotine- containing vapor that is then inhaled by the user. The most popular ENDS on the market are electronic cigarettes, but different ENDS types and brands are engineered differently. The differences include the physical appearance, the nicotine solvent, nicotine concentration and flavor additives to the solution, the capacity of the cartridge containing the solution, the nature of the heating element, and size and type of battery. Since the majority of ENDS contain nicotine and generate inhalable vapor in a manner similar to cigarette smoking, our overall hypothesis is that ENDS might be an effective nicotine delivery device. The primary goal of this research project is to evaluate the quality and efficacy of various electronic nicotine delivery systems (ENDS). Secondarily, we aim to establish an evidence base for evaluating their potential for nicotine delivery to users. This study will investigate various brands and models of ENDS to measure nicotine levels in refill liquids, cartridges, and vapor. We will also complete laboratory testing to investigate how various engineering characteristics influence nicotine yields inhaled by users of the products. We will conduct short- term clinical studies to assess nicotine delivery to the human body from various types of ENDS, including comparisons with conventional cigarettes. The findings can then inform FDA on developing and implementing standard quality procedures and testing methods for ENDS.
Our specific aims are as follows:
SPECIFIC AIM 1 - PRODUCT CHARACTERIZATION (LABORATORY):
Our first aim i s to determine the amounts of nicotine present in various brands and types of ENDS, and nicotine yields in vapors generated from the devices.
SPECIFIC AIM 2 - DELIVERED LEVELS OF NICOTINE (CLINICAL): We will conduct pharmacokinetic (PK) studies to determine the levels of nicotine effectively delivered by various types of ENDS into the bloodstream and compare them to levels delivered by conventional cigarettes. We will explore the effects of flavorings added to a nicotine solution on puffing topography and nicotine delivery from ENDS.
SPECIFIC AIM 3 - DEVELOP A STANDARDIZED TESTING PROTOCOL FOR ENDS THAT WILL REFLECT USERS' PUFFING BEHAVIOR AND PRODUCT CHARACTERISTICS (TRANSLATIONAL): We will develop a standardized testing protocol for various types of ENDS.

Public Health Relevance

Electronic nicotine delivery systems (ENDS) are novel devices that generate a nicotine-containing vapor which is then inhaled by the user. This study will investigate various brands and models of ENDS to measure nicotine levels in the products, nicotine yields in inhaled vapors, and the levels of nicotine effectively delivered into the bloodstream. The findings can then inform FDA on developing and implementing standard quality assessment procedures and testing methods for ENDS.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
3R01DA037446-02S1
Application #
9117703
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Walton, Kevin
Project Start
2014-09-01
Project End
2016-08-31
Budget Start
2015-09-01
Budget End
2016-08-31
Support Year
2
Fiscal Year
2015
Total Cost
Indirect Cost
Name
Roswell Park Cancer Institute Corp
Department
Type
DUNS #
824771034
City
Buffalo
State
NY
Country
United States
Zip Code
14263
Kosmider, Leon; Spindle, Tory R; Gawron, Michal et al. (2018) Nicotine emissions from electronic cigarettes: Individual and interactive effects of propylene glycol to vegetable glycerin composition and device power output. Food Chem Toxicol 115:302-305
Leigh, Noel J; Lawton, Ralph I; Hershberger, Pamela A et al. (2016) Flavourings significantly affect inhalation toxicity of aerosol generated from electronic nicotine delivery systems (ENDS). Tob Control 25:ii81-ii87
Kosmider, Leon; Sobczak, Andrzej; Prokopowicz, Adam et al. (2016) Cherry-flavoured electronic cigarettes expose users to the inhalation irritant, benzaldehyde. Thorax 71:376-7
Goniewicz, Maciej L; Gupta, Ribhav; Lee, Yong Hee et al. (2015) Nicotine levels in electronic cigarette refill solutions: A comparative analysis of products from the U.S., Korea, and Poland. Int J Drug Policy 26:583-8