Clinical trials: Non-smokers
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
Tobacco Use Cessation
VergeRx for Smokers Not Ready to Quit
This study uses a factorial optimization experiment to identify which treatment components help adults who smoke and are not ready to quit in the next 30 days (smokers not ready to quit, or SNRTQ) achieve smoking cessation.
- Trial name
- NCT07693660
- Testing
- VergeRx, SmokefreeTXT, NRT Lozenge (Combination)
- Where
- United States
- Volunteers
- 592 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Tabagism
Impact of Nicotine on Retinal Vascularization
The main hypothesis is the nicotine is associated with a modification of retinal micro-vascularization. Patients will be recruited during their ophthalmologic consultation at the Rothschild Foundation, an OCT-A will be realized…
- Trial name
- TABARET (NCT03964623)
- Testing
- OCT-A (Optical Coherence Tomography)
- Where
- France
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Periodontal Disease
Evaluation of Photodynamic Therapy as an Adjunct to Non-surgical Treatment in Periodontitis in Smokers vs. Non-smokers
Patients with moderate periodontal destruction underwent mechanical debridement of the pathological changes from the periodontal pockets in one of the randomly selected quadrants and in another, also randomly selected, quadrant.
- Trial name
- NCT07697963
- Testing
- Photodynamic therapy (PDT)
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Pristina
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
Smoking
European Exposure Study
The current study was designed to determine the exposure of adult smokers and non-smokers to cigarette smoke constituents through evaluation of selected biomarkers of exposure.
- Trial name
- NCT01237912
- Where
- United Kingdom
- Volunteers
- 1,667 people, healthy volunteers welcome
- Sponsor
- Philip Morris Products S.A.
Smoking, Smoke Exposure
Creating Smokefree Living Together for Chinese Household Pairs
This is a trial of household pairs of a Chinese smoker and nonsmoker randomized either to a smoke-free educational intervention or self-help control group.
- Trial name
- NCT01592682
- Testing
- Smokefree counseling
- Where
- United States
- Volunteers
- 410 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
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
Erectile Dysfunction, Smoking
A Comparative Pharmacokinetic and Pharmacodynamic Study of Sildenafil in Adult Smokers and Non Smokers
Smokers are at higher risk of developing Erectile dysfunction (ED) independent of age and comorbidities. Sildenafil is a cytochrome p3A4 (CYP3A4) substrate used for enhancing the erectile function in males.
- Conditions
- Erectile Dysfunction, Smoking, Pharmacokinetics, Pharmacodynamics
- Trial name
- NCT04100759
- Testing
- Sildenafil 50 mg Oral Tablet
- Where
- Egypt
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
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
Lipid Profile, Lipids
Serum Lipid Profile and Lip Squamous Cell Carcinoma
The goal of this observational retrospective study is to assess whether serum lipid levels differ between patients diagnosed with lip squamous cell carcinoma (SCC) and healthy individuals.
- Conditions
- Lipid Profile, Lipids, SCC - Squamous Cell Carcinoma, Lip Cancer
- Trial name
- NCT07005115
- Where
- Turkey (Türkiye)
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Akdeniz University
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.
Immunity, Smoking, Cigarette
Impact of Solarplast® on Immunity in Active Smokers and Non-smokers
The purpose of this study is to determine the impact of Solarplast treatment on measures of oxidative stress, immune function, skin appearance, and associated measures in 60 men and women, consisting of both cigarette smokers and…
- Trial name
- NCT05162820
- Testing
- 100 mg Solarplast
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Memphis
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
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
Smoking
Effects of Sulforaphane (SFN) on Immune Response to Live Attenuated Influenza Virus in Smokers and Nonsmokers
Vegetables such as broccoli, cauliflower, kale and cabbage are particularly rich in a plant chemical called sulforaphane (SFN) which boosts production of certain "defense" enzymes that increase the activity of antioxidants.
- Trial name
- NCT01269723
- Testing
- Broccoli sprout homogenate, Alfalfa sprout homogenate
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Lung Disease, Lung Disorder
Effects of Electronic Cigarettes on Lung Biology
E-cigarettes are an increasingly popular alternate nicotine delivery system, but nothing is known about the effects of electronic cigarettes on the lungs.
- Trial name
- NCT02188511
- Testing
- Group A, Group B, Group C
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell 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