Clinical trials: Healthy Non-smoker
Healthy, Periodontitis
Effect of Non-Surgical Periodontal Treatment on Biomarker Levels
Periodontitis is a destructive disease that follows untreated gingivitis and is characterized by gingival inflammation, clinical attachment loss, alveolar bone loss and periodontal pocket formation, increased tooth mobility and…
- Trial name
- NCT06178081
- Testing
- Periodontal Healthy
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Biruni University
Schizophrenia
Effects of Varenicline on Plasticity in Schizophrenia
This laboratory pilot study will explore the effects of varenicline tartrate on long-term potentiation (LTP)-like mechanisms of (1) the motor cortex and (2) the dorsolateral prefrontal cortex (DLPFC) and working memory in…
- Trial name
- VAR-PAS (NCT01934023)
- Testing
- Varenicline
- Where
- Canada
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Centre for Addiction and Mental Health
COPD, Emphysema
Leukocyte Function in Chronic Obstructive Pulmonary Disease (COPD)
The aim of this study is to investigate the mechanisms whereby leukocytes are recruited to the lung in chronic obstructive pulmonary disease (COPD) and cause tissue destruction.
- Conditions
- COPD, Emphysema, Chronic Bronchitis
- Trial name
- NCT00147082
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Smoking, Lung Diseases
Evaluation of Lungs of Normal Individuals by Lung Lavage, Brushing and Bronchial Wall Biopsy
The purpose of this study is to obtain biologic materials from the blood and lungs of normal individuals to establish a set of normal range for various parameters.
- Trial name
- NCT00224185
- Testing
- Bronchopulmonary Lung Lavage, Bronchial Brushing, Bronchial Wall Biopsy
- Where
- United States
- Volunteers
- 196 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Cigarette Smoker, Current Smoker
Nicotine Delivery From Novel Non-Tobacco Electronic System in Smokers
This randomized pilot clinical trial studies nicotine delivery from novel non-tobacco electronic system (ENDS) in smokers. Studying the levels of nicotine delivered by various types and brands of ENDS to the bloodstream, and…
- Conditions
- Cigarette Smoker, Current Smoker, Healthy Subject
- Trial name
- ENDS (NCT02575885)
- Testing
- Electronic Cigarette, Laboratory Biomarker Analysis, Pharmacological Study
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Roswell Park Cancer Institute
Smoking, Healthy
Determination of Biomarkers of Exposure and Biomarkers of Potential Harm in Asian Adult Cigarette Smokers
The purpose of this study is to determine biomarkers of exposure to Harmful and Potentially Harmful Constituents (HPHCs) in Cigarette Smoke and cardiovascular-related biomarkers in smokers and non smokers.
- Trial name
- NCT02103751
- Where
- Japan
- Volunteers
- 1,069 people, healthy volunteers welcome
- Sponsor
- Philip Morris Products S.A.
Healthy Subjects, Smokers
Multiple Breath Washout (MBW) Using Sulfur Hexafluoride Reference Values and Influence of Anthropometric Parameters
Multiple breath washout (MBW) using Sulphur hexafluoride (SF6) has the potential to reveal ventilation heterogeneity in obstructive lung disease which is frequent in patients with small airway disease.
- Conditions
- Healthy Subjects, Smokers, Non-smokers
- Trial name
- NCT04099225
- Testing
- Multiple breath washout (MBW) testing
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- Universitätsmedizin Mannheim
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
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
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
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
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
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
Healthy, Brain Reactivity of Non-smokers Undergoing fMRI Scanning
Memory and Picture Viewing Study
The purpose of this study is to obtain a database of brain function from a sample of non-smokers while they do tasks in an MRI (magnetic resonance imaging) machine.
- Trial name
- MPVS (NCT00736203)
- Where
- United States
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- Duke University
Mucociliary Clearance
Evaluating the Effect of Mucinex® 1200 mg on Mucociliary and Cough Clearance From the Human Lung
The purpose of this research study is to test the ability of Mucinex, an oral, over-the-counter, FDA approved expectorant) to stimulate the clearance of inhaled particles from the subject's lungs (called "mucociliary clearance").
- Trial name
- NCT00902707
- Testing
- Mucinex 1200mg
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Healthy Non-smokers, Current Smokers
Markers for Chronic Obstructive Pulmonary Disease (COPD)
The primary aim of this study is to exploit a difference between COPD patients, chronic smokers without COPD and healthy non-smoking subjects.
- Conditions
- Healthy Non-smokers, Current Smokers, COPD Patients
- Trial name
- NCT00180622
- Testing
- Spirometry, Exhaled Nitric Oxide and Carbon Monoxide, Exhaled Breath Condensate
- Where
- United Kingdom
- Volunteers
- healthy volunteers welcome
- Sponsor
- Imperial College London
Healthy Participant
Different Modes of Universal Adhesive in Smokers and Non-Smokers
The aim of the study was to evaluate the influence of smoking on the clinical performance of a universal adhesive used with different application modes in non-carious cervical lesions.
- Trial name
- NCT04807465
- Testing
- G-Premio Bond in etch&rinse mode, G-Premio Bond in selective-etch mode, G-Premio Bond in self-etch mode
- Where
- Turkey (Türkiye)
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Hacettepe University