Clinical trials: Non-smoker
Smoking, Tobacco Use
Salt-Based E-cigarette
Electronic nicotine delivery systems (ENDS) vary on a wide range of characteristics, which may impact the reinforcement value of the products compared to more harmful combustible products.
- Trial name
- NCT04238832
- Testing
- Salt Base Nicotine, Free Base Nicotine
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Non-smoker, ADHD
Nicotine, Non-Smokers With and Without ADHD, and Genetics Study
The overall goal of the proposed research is to evaluate the behavioral and genetic mechanisms of smoking risk in non-smoking young adults (aged 18-25 years of age) with and without ADHD using a novel laboratory-based model of…
- Trial name
- NNSG (NCT01819259)
- Testing
- Nicotine nasal spray
- Where
- United States
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Scott Kollins, PhD
Pulmonary Disease, Headache Disorders
Smoking and Health Among University Students
The goal of this observational study is to explore the associations between pulmonary capacity, physical activity levels, and headache occurrence in university students aged 18-30, focusing on differences between smokers and…
- Conditions
- Pulmonary Disease, Headache Disorders, Sedentary Behavior, Physical Activity Level
- Trial name
- SHUS (NCT06680570)
- Testing
- Pulmonary Function Testing, Carbon Monoxide (CO) Breath Testing
- Where
- Turkey (Türkiye)
- Volunteers
- 163 people, healthy volunteers welcome
- Sponsor
- University of Yalova
Cigarette Smoking, Smoking Behaviors
Switch or Quit R01
This study evaluates whether non-cigarette tobacco products (e-cigarettes) can help smokers quit smoking as compared to traditional quit methods (nicotine replacement therapy or varenicline/Chantix).
- Trial name
- NCT06373679
- Testing
- Switching to E-Cigarette, Switching using Medication
- Where
- United States
- Volunteers
- 225 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Smoking, COPD
Smoking-induced EGF-dependent Reprogramming of Airway Basal Cell Function
Early changes associated with the development of smoking-induced diseases, e.g., COPD and lung cancer (the two commonest causes of death in U.S.) are often characterized by abnormal airway epithelial differentiation.
- Conditions
- Smoking, COPD, Chronic Obstructive Pulmonary Disease
- Trial name
- NCT01974180
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Cigarette Smoking, Coronary Heart Disease
Exercise and Coronary Heart Disease Risk Markers in Male Smokers and Non-Smokers
The present study will investigate the effect of acute exercise on fasting and postprandial risk markers for coronary heart disease (CHD) in healthy male cigarette smokers and non-smokers.
- Conditions
- Cigarette Smoking, Coronary Heart Disease, Cardiovascular Risk Factor, Insulin Resistance
- Trial name
- NCT03735186
- Testing
- Exercise
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Loughborough University
Smoking Reduction
Switching to E-cigarettes in Smokers Not Interested in Quitting
The objectives of this application are to 1) compare short- and long-term harm reduction and abuse liability potential of a nicotine salt pod-based electronic cigarettes (EC) in adult (AA) exclusive EC, dual cig-EC, and exclusive…
- Trial name
- NCT05703672
- Testing
- Varenicline Tartrate, Electronic cigarette
- Where
- 2 sites in United States
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
Healthy Non-smoker
Matrix on Fruit Constituent Bioavailability
Primary objective is to evaluate the influence of matrix on the bioavailability of key phytochemical constituents in fruits and their subsequent effect on chronic disease risk factors.
- Trial name
- FRT (NCT01908634)
- Testing
- Milk-based Strawberry Beverage without meal, Water-Based Strawberry Beverage without meal, Milk-based strawberry Beverage with meal
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Clinical Nutrition Research Center, Illinois Institute of Technology
Smoking, Tobacco
Respiratory Function and Oxygenation in Smokers and Non-smokers
This study aimed to compare respiratory function, exercise capacity, and intercostal muscle oxygenation in healthy smokers and non-smokers.
- Trial name
- NCT07027956
- Where
- Turkey (Türkiye)
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Kirsehir Ahi Evran Universitesi
no Condition, Basic Science
Effects of Prazosin on the Attention-Enhancing Effects of Nicotine
To test whether specific aspects of the attention-enhancing effects of nicotine may be mediated by down-stream activation of alpha1 adrenoceptors, the interaction of nicotine and the alpha1 adrenergic antagonist prazosin on…
- Trial name
- NCT03416569
- Testing
- Nicotine, Prazosin, Nicotine + Prazosin
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Healthy
Glycemic and Insulinemic Index Determination of Two Products: Fructilight® and A Fruit Fructo-Oligosaccharides in Sweet Matrix
The aim of the study is to determine glycemic and insulinemic index of 2 sweet syrups : FructiLight® and fruit Fructo-oligosaccharides in sweet matrix compared to glucose.
- Trial name
- IGNUT (NCT01343797)
- Testing
- Glycemic and insulinemic index tests of a fruit fructose syrup and a fruit fructo-oligosaccharid syrup
- Where
- France
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- CRITT Bio-Industries
Smokers, Vaping
Persistence of Oral DNA Adducts in Smokers and Vapers
This study aims to better understand what damage caused to oral cells from smoking and vaping might be important in the formation of oral cancers.
- Conditions
- Smokers, Vaping, Healthy Volunteers
- Trial name
- NCT06983392
- Testing
- Abstain from smoking/vaping
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Minnesota
Non Surgical Periodontal Therapy
Effect of Nonsurgical Periodontal Therapy on Salivary Biomarkers Related to Bone Turnover in Smoker and Nonsmoker Periodontitis Patients
1. To assess the alteration in the level of salivary osteopontin (OPN), osteonectin(ON) and histatin-1 following NSPT in smoker and nonsmoker unstable periodontitis patients at different time intervals(one month and three months)…
- Trial name
- NCT06270004
- Testing
- nonsurgical periodontal therapy
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
Periodontitis, Periodontal Diseases
Histatin-1 Levels in Smokers and Non-smokers With Periodontitis Patients: A Comparative Study Before and After Nonsurgical Periodontal Therapy
This study evaluated the impact of smoking on salivary histatin-1 levels and clinical healing in 50 patients with unstable periodontitis (25 smokers and 25 non-smokers) undergoing non-surgical periodontal therapy (NSPT).
- Trial name
- NSPT (NCT07367737)
- Testing
- Non Surgical Periodontal Treatment
- Where
- Iraq
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
PASSIVE SMOKING ,, RESPIRATORY SYSTEM MECHANICS,
Effects Of Passive Smoking On The Respiratory System Mechanics Of Healthy Non-Smokers In Different Body Positions
The study will examine changes in the respiratory system mechanics and in respiratory physiology after exposure of subjects to passive smoking.
- Trial name
- NCT02171871
- Testing
- exposed to a smoking environment
- Where
- Greece
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hellenic Anticancer Society
Respiratory Disorders
A Study to Evaluate the Safety, Reactogenicity and Immunogenicity of GSK Biologicals' Non-typeable Haemophilus Influenzae (NTHi) Investigational Vaccine (GSK2838497A) in Current and Former Smokers
The purpose of this study is to assess the safety, reactogenicity and immunogenicity of 8 different formulations of investigational NTHI vaccine in current and former smokers, 50-70 years of age.
- Trial name
- NCT01678677
- Testing
- NTHI vaccine GSK2838500A (formulation 1), NTHI vaccine GSK2838501A (formulation 2), NTHI vaccine GSK2838502A (formulation 3)
- Where
- 3 sites in Belgium
- Volunteers
- 272 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Nicotine Dependence, Healthy
Test-retest Reproducibility of [11C]PHNO PET Using the Constant Infusion Paradigm
A research study designed to examine amphetamine-induced dopamine release using the PET imaging agent [11C]PHNO in tobacco smokers while currently smoking and during acute withdrawal and in nonsmokers.
- Trial name
- phno_amth (NCT01699607)
- Testing
- Amphetamine
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Yale University
Periodontitis (Stage 3), Gremlin-1
Comparative Analysis of Gremlin-1, Syndecan-4 and IL-1 Beta Levels in Gingival Crevicular Fluid Among İndividuals With Periodontal Health and Stage III Periodontitis, Considering Both Smokers and Non-Smokers, Before and After Non-Surgical Periodontal Therapy
eriodontitis is a complex disease characterized by the inflammation and destruction of the tissues supporting the teeth, and smoking can adversely affect the pathophysiological changes in this process.
- Conditions
- Periodontitis (Stage 3), Gremlin-1, Syndecan 4, Interleukin 1-beta
- Trial name
- NCT06687005
- Testing
- non-surgical periodontal therapy
- Where
- Turkey (Türkiye)
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Tugba Aydin
Oxidative Stress in Healthy Subjects
Effects of Lutein Supplementation on Oxidative Stress and Inflammation in Healthy Nonsmokers
Lutein is one of oxygenated carotenoids. Over the past few years, there has been increased interest in evaluating the effect of lutein for optimizing immune functions.
- Trial name
- NCT01056094
- Testing
- Lutein
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Peking University
Health Risk Behaviors, Non Communicable Diseases
Compare Smokers' Appraisal of Proposed Plain Packs and Existing Cigarette Packs
2 Objectives 1. To explore the noticeability of pictorial health warnings and perceptions of attractiveness and harmfulness towards plain cigarette packets and existing cigarette packets with 85% pictorial warnings in current…
- Trial name
- NCT05907226
- Where
- Hong Kong
- Volunteers
- 1,283 people, healthy volunteers welcome
- Sponsor
- Chinese University of Hong Kong