Clinical trials: Toxicant Exposure
Smoking, Tobacco, Vaping
Investigating Exposure to Toxicants From Smoking and Vaping
Background: Many people who smoke use vaping products to help them quit. Levels of toxicants in urine samples are substantially lower in those who exclusively vape compared to those who smoke, suggesting that vaping poses only a…
- Conditions
- Smoking, Tobacco, Vaping, Mental Health Disorder
- Trial name
- NCT05953220
- Testing
- Exclusive tobacco smoking, Exclusive e-cigarette use, Dual use of e-cigarettes and tobacco smoking
- Where
- United Kingdom
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- King's College London
Tobacco Toxicant Exposure
Metabolism of Deuterated NNN in Smokeless Tobacco Users
The purpose of this study is to better understand how people break down a tobacco specific cancer-causing toxin called N'-nitrosonornicotine (NNN) that is present in smokeless tobacco and cigarettes.
- Trial name
- NCT02414477
- Testing
- Deuterated NNN
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Tobacco-Related Carcinoma
Hookah Additive Research to Inform Product Standards
This clinical trial evaluates how the content of waterpipe (WP) tobacco affects the appeal, puffing behavior, and toxicity of WP tobacco smoking.
- Trial name
- HARPS (NCT05453773)
- Testing
- Questionnaire Administration, Tobacco Smoking
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Ohio State University Comprehensive Cancer Center
Cigarette Smoking-Related Carcinoma, E-Cig Use
Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use Cigarettes, E-cigarettes and Cannabis (Co-Tox Study)
This study evaluates the amount of nicotine, cannabis, and toxicants linked to the use of nicotine e-cigarette and/or cannabis products in the blood and urine of young adult users as well as the cannabis and nicotine use…
- Trial name
- NCT07167225
- Testing
- Effectiveness of different recruitment approaches, Choice of study completion locations, Cannabis Engagement Assessment
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Roswell Park Cancer Institute
Inflammation, Oxidative Stress
Reduction of Exposure, Inflammation, and Oxidative Stress Following at Least 2 Years of Switching to THS Use Compared to Cigarette Smoking
This is a cross-sectional 3-group study with subjects enrolled and matched by region (Asia, Europe), age, sex, and average daily product consumption over the last 2 years as self-reported.
- Conditions
- Inflammation, Oxidative Stress, Smoking, Smoking Abstinence
- Trial name
- NCT05385055
- Testing
- THS use, Cigarette smoking, Smoking abstinence
- Where
- 37 sites in Bulgaria, Czechia and 4 more
- Volunteers
- 974 people, healthy volunteers welcome
- Sponsor
- Philip Morris Products S.A.
Toxicant Exposure
Effects Among Smokers Who Use and Do Not Use E-Cigarettes
This study compares effects among Latino and African American cigarette smokers who use e-cigarettes with those who continue smoking as usual.
- Trial name
- NCT03511001
- Testing
- E-Cigarette Vs. Smoking as Usual
- Where
- 2 sites in United States
- Volunteers
- 187 people, healthy volunteers welcome
- Sponsor
- California State University, San Marcos
Tobacco Cessation, Electronic Nicotine Delivery Systems
Flavored Electronic Nicotine Delivery Systems to Lower Smoking and Exposure to Tobacco Toxicants Among Cigarette Smokers Interested in Quitting, REFLECT Trial
This clinical trial studies whether different flavored electronic nicotine delivery systems (ENDS) help lower smoking and exposure to tobacco toxicants among cigarette smokers interested in reducing their smoking.
- Trial name
- REFLECT (NCT07896330)
- Testing
- Vaping - Fruit flavored ENDS, Biospecimen Collection, Vaping - tobacco flavored ENDS
- Where
- United States
- Volunteers
- 286 people, healthy volunteers welcome
- Sponsor
- Roswell Park Cancer Institute
Alcohol Use, Unspecified, Hookah Smoking
Effect of Concurrent Hookah and Alcohol Consumption on Smoking Topography and Toxicant Exposure
The purpose of the current study is to investigate in a prospective randomized cross-over trial, the impact of alcohol versus a placebo drink on smoking behavior and topography (duration and frequency of puffing), abuse…
- Trial name
- NCT03096860
- Testing
- Active alcohol consumption
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Oklahoma State University
Electronic Cigarette Use
Effect of Menthol on ENDS Users' Addiction and Exposure
The use of electronic nicotine delivery systems (ENDS; e-cigarettes) has reached epidemic levels among young people in the United States (US).
- Trial name
- NCT05338801
- Testing
- Menthol-flavored e-cigarette, Tobacco-flavored e-cigarette
- Where
- United States
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Florida International University
Pollution; Exposure, Glucose Intolerance
Environmental Toxicants Avoidance Study
This study is designed to test whether non-persistent environmental chemicals (PECs) are elevated in people with glucose dysregulation.
- Conditions
- Pollution; Exposure, Glucose Intolerance, Glycemic Control
- Trial name
- NPETA-GD (NCT04821752)
- Testing
- Avoidance Education
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Bastyr University
Smokeless Tobacco Use, Tobacco Dependence
Novel Determinants and Measures of Smokeless Tobacco Use: Study 1
The extent of toxicity varies considerably across different brands of smokeless tobacco (ST) products and data suggest that greater toxicity may result in greater health risks.
- Trial name
- NCT01067586
- Where
- 3 sites in United States
- Volunteers
- 359 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Smoking, Hookah, Waterpipe Smoking
The Impact of Waterpipe Tobacco Flavors on Waterpipe Smoking Intentions, Perceptions, Patterns, and Toxicant Exposure
The overall aim of the current study is to determine if flavorings contribute to the initiation and maintenance of waterpipe (WP) smoking and also influence how a WP is smoked, which has implications for both risk of dependence…
- Trial name
- NCT03232827
- Testing
- Flavored-Sweetened Waterpipe Tobacco, Unflavored-sweetened waterpipe tobacco, Unflavored-very low sweetened waterpipe tobacco
- Where
- United States
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- University of Oklahoma
Healthy
Observational Study of Exposure to Environmental Toxicants Among Firefighters
Observational, within subject study design with 1 pre and 2 post-fire exposure biomarker samples collected to assess exposure to toxicants from combustion emissions related to fighting a structural fire.
- Trial name
- NCT05643014
- Testing
- Sample collection
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Masonic Cancer Center, University of Minnesota
Waterpipe Size
Effect of Waterpipe Size on Smoking Behavior and Exposures
The goal of this clinical trial is to learn how waterpipe (WP) size affects smoking behavior, toxicant exposure, and subjective experiences in young adult WP smokers (ages 21-39).
- Trial name
- NCT05705375
- Testing
- Waterpipe size
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- The University of Texas at Arlington
Electronic Nicotine Delivery System Flavors
Potential Effects of Electronic Nicotine Delivery System Flavor Regulations on African American Menthol Smokers
This study aims to better understand how the availability of electronic nicotine delivery system (aka electronic cigarettes) flavors (e.g., menthol, tobacco) impacts tobacco use behaviors, toxicant exposure, and abuse liability…
- Trial name
- RVA Flavors (NCT05023096)
- Testing
- Tobacco product administration and assessment
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Virginia Commonwealth University
Tobacco Toxicant Exposure
Determining Levels of [D10] Phenanthrene Tetraol in Smokers' Urine
The purpose of this research study is to better understand how people respond to cancer-causing chemicals in cigarette smoke. Some people are able to get rid of these chemicals as harmless agents while others suffer damage to…
- Trial name
- NCT01092650
- Testing
- Deuterated phenanthrene
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Full Term Infants, Environmental Exposures
Epigenetic and Developmental Effects of In Utero Exposure to Environmental Toxicants
Metabolic diseases such as obesity and diabetes are modern day epidemics. Early life exposure to an adverse developmental environment, including environmental toxins, are linked to increased susceptibility to obesity, metabolic…
- Conditions
- Full Term Infants, Environmental Exposures, Adiposity
- Trial name
- NCT01815385
- Where
- United States
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Montefiore Medical Center