- Conditions
- Pulmonary Disease, Chronic Obstructive, E-cigarettes
- Interventions
- E-cigarette, Sham, Hyperpolarized 3-Helium, Gadolinium
- Device · Other · Drug
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 21 Years to 35 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- New York, New York
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Showing 1–9
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- Conditions
- Healthy, Cystic Fibrosis (CF), Asthma, Bronchopulmonary Dysplasia (BPD)
- Interventions
- Hyperpolarized Helium-3 MRI of the chest
- Drug
- Lead sponsor
- University of Virginia
- Other
- Eligibility
- 4 Months to 65 Years
- Enrollment
- 45 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2018
- U.S. locations
- 1
- States / cities
- Charlottesville, Virginia
- Conditions
- Pulmonary Disease, Chronic Obstructive
- Interventions
- Pulmonary Function Test, CT Scans, Questionnaires, MRI, Xenon gas
- Diagnostic Test · Behavioral · Biological
- Lead sponsor
- Eric A. Hoffman
- Other
- Eligibility
- 20 Years to 89 Years
- Enrollment
- 341 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1997 – 2015
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- COPD, Healthy, Constrictive Bronchitis
- Interventions
- hyperpolarized helium-3 gas with MRI of the chest
- Drug
- Lead sponsor
- University of Virginia
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2026
- U.S. locations
- 2
- States / cities
- Charlottesville, Virginia
- Conditions
- Chronic Obstructive Pulmonary Disease
- Interventions
- Hyperpolarized Helium-3, Placebo, Aformoterol
- Drug
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- Conditions
- Healthy Volunteers
- Interventions
- Hyperpolarized He3
- Drug
- Lead sponsor
- University of Virginia
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2021
- U.S. locations
- 1
- States / cities
- Charlottesville, Virginia
- Conditions
- COPD, Cystic Fibrosis, Asthma, Healthy
- Interventions
- Hyperpolarized Helium-3
- Drug
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 5 Years and older
- Enrollment
- 14 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- Conditions
- Radiation Exposure
- Interventions
- Prone hyperpolarized 3 helium gas scan, Supine hyperpolarized 3 helium gas scan, Vitals, Pulmonary Function Tests, Initial protocol MRI scan
- Drug · Diagnostic Test
- Lead sponsor
- Eric A. Hoffman
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Asthma Exacerbation
- Interventions
- Helium-3
- Drug
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts