NCT06448351

Manipulating E-Cigarette Nicotine to Promote Public Health

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 350 (estimated)
• Sponsor: Ohio State University Comprehensive Cancer Center · Academic / Other
• Sex: All
• Age: 21 Years – 65 Years
• Healthy volunteers: Accepted

Summary

This clinical trial explores the manipulation of e-cigarette (EC) nicotine to promote public health. Researchers are trying to understand and gather information about how the strength, form, and structure of nicotine in products play a significant role in their potential for addiction and how they might affect health risks. The information gained from this study may allow researchers to understand how these aspects of nicotine influence the potential for addiction, how people puff on ECs, how the body processes nicotine, and any potential harmful effects it might have on health. Exploring these specific characteristics of nicotine may also determine if an EC product standard could help identify optimal nicotine levels for users.

Detailed description

PRIMARY OBJECTIVES: I. Assess the pharmacological, metabolic, and behavioral impact of nicotine dimensions. (Study 1) II. Assess the toxicity resulting from different nicotine dimension combinations. (Study 1) III. Across ecologically valid nicotine concentrations and isomer ratios, determine free-base (FB) nicotine fractions with minimal appeal to young adult EC users but sufficient appeal to smokers. (Study 2) OUTLINE: Phase 1 (STUDY 1): Participants are randomized to the order of 8 e-liquid combinations varying in nicotine concentration, form, and isomer. Participants participate in a 10-puff vaping session over 5 minutes with a study e-liquid using the study EC device followed by a 60 minute washout period and then an ad libitum puffing session over 60 minutes at each lab visit. Patients are also given a new pre-filled study device corresponding to the study e-liquid they will use for the subsequent visit to practice at home. Puffing sessions continue with a new study e-liquid at each of the 8 lab visits lasting up to 4 hours each. Participants also undergo carbon monoxide (CO) testing and blood and urine sample collection on study. Phase 2 (STUDY 2): Participants are randomized to the order of 20 e-liquid combinations varying in concentration, FB fractions, and isomer. Participants will take part in a 2-puff vaping session with each of the 20 study e-liquids using the study EC device with a 20-minute washout period between each vaping session. Vaping sessions are grouped into two visits, each lasting up to 5 hours and consisting of 10 e-liquids. Participants also undergo CO testing and blood and urine sample collection on study.

Conditions

• Tobacco-Related Carcinoma

Interventions

Type	Name	Description
PROCEDURE	Biospecimen Collection	Undergo blood and urine sample collection
PROCEDURE	Carbon Monoxide Measurement	Undergo CO test
OTHER	Vaping session	Sample study e-liquids in vaping sessions at research lab with e-cig study device
OTHER	Survey Administration	Ancillary studies

Timeline

• Start date: 2024-05-20
• Primary completion: 2027-05-20
• Completion: 2027-05-20
• First posted: 2024-06-07
• Last updated: 2025-06-04

Locations

1 site across 1 country: United States