Clinical Trials Logo

Clinical Trial Summary

This randomized pilot clinical trial studies the effects of electronic cigarettes on the lungs. Studying the effects of electronic cigarettes on the lungs may provide the Food and Drug Administration (FDA) and other government regulators with important information, which may help in developing future regulations to make electronic cigarettes safer.


Clinical Trial Description

PRIMARY OBJECTIVES: 1) To conduct a pilot cross-sectional study of e-cig users (n=16), never-smokers (n=8 - completed under an earlier version of the protocol before never-smokers were used for Aim 2), (newly added n=15), former smokers who have quit smoking and are currently not using e-cigs (n=15), former smokers who switched to e-cigs (n=15) and smokers (n=16) [total n=85), to better determine the influence of e-cig and smoking use (i.e., power) between never smokers and e-cig users, and to compare former smokers with e-cig use, and assessing use patterns and biomarkers by bronchoscopies using bronchioalveolar lavage (cell counts, inflammatory cytokines, untargeted metabolomics, and microbiome assessment), bronchial brushings (miRNA and mRNA expression, DNA methylation, acrolein DNA adducts, and mitochondrial DNA mutations and copy number variation), blood and urine to assess exposure to the e-cigs ingredients, saliva for oral microbiome assessment, and nasal brushing and nasal lavages for the lung toxicity as examined in this study as surrogate markers for the lung. We will also measure fractional exhaled nitric oxide (FeNO) as a marker of lower airway inflammation; and, 1a) Conduct a supplemental contamination study to measure if bacteria from oral cavity, nasal cavity or oropharynx may contaminate BAL fluid recovered during the bronchoscopy (n=30). Contamination analyses will measure if bacterial species found in oral cavity, nasal cavity and oropharynx are recovered in BAL. Contamination analyses will not examine differences between groups. 2) To conduct a 4 week pilot clinical trial of nicotine-free and flavor-free e-cig use in never-smokers (n=30), randomized to e-cig use (n=15) or control (no e-cig use) (n=15), and assess biomarkers as in Aim 1 by bronchoscopy at baseline and at 4 weeks while on product (week 5 of trial). OUTLINE: PART I: Patients are randomized to 1 of 2 arms. ARM I: Patients undergo bronchoscopy of the left lung over 30-60 minutes. ARM II: Patients undergo bronchoscopy of the right lung over 30-60 minutes. PART II: Patients who are never-smokers are then randomized to 1 of 2 arms. ARM A: Patients receive nicotine-free and flavor-free electronic cigarettes and instructed to use them twice daily (BID) over a 2 hour period for 4 weeks. ARM B: Patients receive no intervention. In both arms, patients undergo a second bronchoscopy during week 5. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02596685
Study type Interventional
Source Ohio State University Comprehensive Cancer Center
Contact
Status Completed
Phase N/A
Start date December 8, 2015
Completion date February 2, 2021

See also
  Status Clinical Trial Phase
Withdrawn NCT02432066 - Effects of GTS-21 on Smoking Behavior and Neurocognitive Functions Phase 2
Completed NCT03960138 - Examining the Effects of Neural Stimulation on Inhibitory Control and Cigarette Smoking N/A
Recruiting NCT05030272 - Comparing Two Behavioral Approaches to Quitting Smoking in Mental Health Settings N/A
Completed NCT04646668 - Comparative Abuse Liability Among African American and White Smokers N/A
Completed NCT02560324 - Effect of Ramelteon on Smoking Abstinence Phase 2
Completed NCT02347605 - Medicinal Nicotine for Preventing Cue Induced Craving N/A
Completed NCT01428310 - Study to Evaluate the Safety and Efficacy of Dietary Supplement Anatabloc in Reducing Daily Smokers' Urge to Smoke Phase 1
Completed NCT01570595 - Positively Smoke Free on the Web (PSFW) for Smokers Living With HIV Phase 1/Phase 2
Completed NCT01625767 - Tobacco Approach Avoidance Training for Adolescent Smokers-1 Phase 2
Terminated NCT01800500 - Interest in Smokeless Tobacco Product as a Substitution for Cigarettes in Current Smokers N/A
Completed NCT01442753 - Family-Skills Training to Prevent Tobacco and Other Substance Use in Latino Youth N/A
Active, not recruiting NCT01539525 - Screening to Augment Referral to Treatment- Project START Phase 2
Completed NCT01337817 - A Pilot Study to Evaluate the Efficacy and Safety of Ariva® Silver Wintergreen in Healthy Smokers Phase 1
Completed NCT00967005 - N-Acetyl Cysteine Plus Behavioral Therapy for Nicotine Dependent Pathological Gamblers Phase 2
Active, not recruiting NCT00751660 - Screening Methods in Finding Lung Cancer Early in Current or Former Smokers N/A
Completed NCT00790569 - Varenicline or Nicotine Patch and Nicotine Gum in Helping Smokers in a Methadone Treatment Program Stop Smoking N/A
Completed NCT00664261 - Clinical Effort Against Secondhand Smoke (CEASE) Program or Standard Care in Helping Parents Stop Smoking N/A
Completed NCT00134927 - A Survey on Consumer Use of Over-the-Counter (OTC) Nicotine Patches N/A
Completed NCT01213524 - Nicotine and Sensorimotor Replacement for Smoking in Smokers With Schizophrenia Phase 2
Completed NCT00158158 - Effectiveness of Reducing Smoking in Facilitating Smoking Cessation in Adolescents - 2 Phase 2/Phase 3