Clinical trials: Non-smokers
Periodontitis (Stage 3), Smoking ( Cigarette)
Salivary TNF-α, FoxO-1, and SIRT-1 Levels in Periodontitis and Smoking
This study examines whether smoking and gum disease (periodontitis) are linked to changes in three biological markers found in saliva: TNF-α, FoxO-1, and SIRT-1.
- Trial name
- NCT07764549
- Testing
- Salivary Biomarker Analysis (ELISA)
- Where
- Turkey (Türkiye)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Zehra Hasgül
Chronic Obstructive Pulmonary Disease
Endotoxin and Inflammatory Markers in Healthy Non-Smokers and Current Smokers Including Patients With Chronic Obstructive Pulmonary Disease (COPD)
The primary aim of this study is to investigate the effects of inhaled lipopolysaccharide endotoxin (LPS) on bronchial and alveolar exhaled nitric oxide (NO) and NO metabolites and other inflammatory markers and mediators in…
- Trial name
- NCT00159289
- Testing
- Inhalation of LPS
- Where
- United Kingdom
- Volunteers
- healthy volunteers welcome
- Sponsor
- Imperial College London
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
Smoking Cessation
Safety and Pharmacodynamics of SEL-068 Vaccine in Smokers and Non-Smokers
The purpose of this study is to evaluate the safety and pharmacodynamics of SEL-068. Increasing subcutaneous doses of SEL-068 will be administered to healthy non-smoker and smoker volunteers.
- Trial name
- NCT01478893
- Testing
- SEL-068, Saline
- Where
- Belgium
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- Selecta Biosciences, Inc.
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
Periodontal Diseases, Epigenetics
DNA Methylation Profile of the SOCS-1 Gene Promoter in Smokers Patients With Chronic Periodontitis.
Periodontitis is related to host genetics, constitution of the dental biofilm and environmental factors such as smoking. DNA methylation is a mechanism of genetic expression that can inhibit or silence gene expression.
- Trial name
- NCT03371446
- Testing
- oral epithelial cells obtained by rinsing with 3% sucrose
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Smoking Cessation, Harm Reduction
Evaluate Harm Reduction Products as a Second Line Intervention for Adult Smokers Who Do Not Quit With NRT
This study will determine whether a range of products along the reduced-risk continuum can reduce smoke exposure for individuals who fail to quit smoking using current medically approved nicotine replacement therapy (NRT)…
- Trial name
- NCT06088862
- Testing
- Nicoderm, Nicorette 4Mg Chewing Gum, Nicorette Lozenge Product
- Where
- 2 sites in United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Rose Research Center, LLC
Healthy Participants, Tobacco Smokers
Evaluation of the Effect of a Nasal Allergen Challenge With Dermatophagoides Farinae Extract on Nasal Airway Inflammation in Allergic Individuals, Comparing E-cigarette Users to Cigarette Smokers and Non-smokers.
The purpose of this pilot study is to evaluate allergen-induced nasal airway inflammation following nasal application of Dermatophagoides farinae (Der f), or house dust mite, extract in e-cigarette users, cigarette smokers, and…
- Trial name
- Mitey Nose (NCT03023397)
- Testing
- Der f
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
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
Periodontal Diseases, Smoking
The Effect of Scaling and Root Planing on Oral Inflammatory Biomarkers Among E-cig Users and Non-smokers
Background/Aim: There are no studies that have compared the gingival crevicular fluid (GCF) levels of IL-1β in non-smokers (NS) and electronic nicotine delivery system (ENDS)-users before and after scaling and root planing (SRP)…
- Trial name
- ENDS-SRP (NCT05745324)
- Testing
- Scaling and root planing
- Where
- Kuwait
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Kuwait University
Ocular Physiology, Retina
Is There a Difference in Flicker Induced Vasodilatation Between Smokers and Non-Smokers?
Habitual smoking is associated with an increased risk of coronary artery disease, cerebral and peripheral vascular disease, including ocular diseases like age-related macular degeneration or diabetic retinopathy.
- Conditions
- Ocular Physiology, Retina, Blood Flow Velocity
- Trial name
- NCT00431730
- Testing
- flicker light stimulation
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
COPD, Smoking
Modulation of Genes Responsible for Cilia Length by Exposure to Cigarette Smoke
Cigarette smoking is the major risk factor for developing chronic obstructive pulmonary disease (COPD). Patients with COPD have difficulty clearing mucus and debris from their airways.
- Trial name
- NCT02168673
- Where
- United States
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Healthy
Measuring Environmental Tobacco and Cannabis: Pollutants and Exposures
This is an unblinded pilot study of an environmental exposure to secondhand cannabis smoke in one group of healthy nonsmokers.
- Trial name
- CAN03 (NCT06030674)
- Testing
- Secondhand cannabis emissions/smoke exposure
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Chronic Obstructive Pulmonary Disease (COPD), Smoking
The Natural History of Gene Expression in the Lung Cells of Non-Smokers, Smokers and Ex-Smokers in Health and Disease
Cigarette smoking is the major risk factor for chronic obstructive pulmonary disease (COPD, commonly known as chronic bronchitis and emphysema).
- Conditions
- Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking Cessation, Chronic Bronchitis
- Trial name
- NCT00974064
- Where
- United States
- Volunteers
- 171 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
COPD, Smoking
Defective FGFR2 Signaling in the Small Airway Basal Progenitor Cells in COPD
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
- COPD, Smoking, Lung Disorder
- Trial name
- NCT02341326
- Where
- United States
- Volunteers
- 111 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Oral Health, Oral Cancer
The Use of Functional Confections in Promoting Oral Health
In areas of the world where populations are undernourished poor oral health is prevalent. Diets rich in fruit and vegetables are thought to have many health benefits including reducing the risk of oral cancer or gum disease.
- Conditions
- Oral Health, Oral Cancer, Gum Disease
- Trial name
- NCT01514552
- Testing
- Strawberry gummy
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Asthmatic Smokers, Non-asthmatic Smokers
The Effects of Montelukast on Smokers With Asthma
The purpose of this study is: 1. To compare neutrophilia, eosinophilic inflammatory markers and asthma symptom indices between smokers and non-smokers. 2.
- Trial name
- NCT00712335
- Testing
- Fluticasone Propionate, Montelukast, Salmeterol
- Where
- South Korea
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Inje University
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
Peri-Implantitis
HIF-1 Alpha, VEGF and MMP-8 Levels in PICF of Smokers Versus Non Smokers
Smoking is a major risk factor for developing peri-implantitis so the current study is comparing inflammatory markers in smokers versus non smokers to know if they have a potential role in pathogenesis of peri-implantitis
- Trial name
- NCT05325918
- Where
- Egypt
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
Smoking, Smoking, Cigarette
Tabata Exercise on Nitric Oxide Synthases and Maresin
Smoking causes chronic inflammation and endothelial dysfunction through alterations in nitric oxide synthase (NOS) pathways. Maresin is an anti-inflammatory pro-resolving lipid mediator that plays important roles in the…
- Trial name
- NCT07412639
- Testing
- Tabata Exercise Protocol
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Ataturk University