- Conditions
- Air Pollution, Atherosclerosis
- Interventions
- HEPA filtration, Sham filtration
- Device
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 65 Years to 84 Years
- Enrollment
- 112 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2028
- U.S. locations
- 1
- States / cities
- Los Angeles, California
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–18
of 18
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- PreDiabetes
- Interventions
- PAC with HEPA filter intact, PAC with HEPA filter removed
- Device
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Pediatric Asthma
- Interventions
- Portable air cleaner with HEPA filter, Less effective portable air cleaner (no HEPA)
- Device
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 6 Years to 12 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Pulmonary Disease, Chronic Obstructive
- Interventions
- Air cleaner
- Device
- Lead sponsor
- Illinois Institute of Technology
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Cardiovascular Risk Factor, Blood Pressure
- Interventions
- HEPA Air Filtration, Sham HEPA Air Filtration
- Other
- Lead sponsor
- UConn Health
- Other
- Eligibility
- 30 Years and older
- Enrollment
- 156 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- Farmington, Connecticut
- Conditions
- Air Pollution, Indoor
- Interventions
- Air purifier
- Device
- Lead sponsor
- Alaska Native Tribal Health Consortium
- Other
- Eligibility
- Up to 5 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2026
- U.S. locations
- 1
- States / cities
- Bethel, Alaska
- Conditions
- Cardiovascular Diseases
- Interventions
- Portable air cleaner (PAC), Sham Portable air cleaner (PAC)
- Other
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Cardiovascular Diseases
- Interventions
- Filtered Air
- Other
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 18 Years to 49 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2016
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Bronchiolitis
- Interventions
- Winix 5500-2 HEPA filtration units
- Other
- Lead sponsor
- IDeA States Pediatric Clinical Trials Network
- Network
- Eligibility
- 1 Week to 12 Months
- Enrollment
- 230 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 17
- States / cities
- Anchorage, Alaska • Little Rock, Arkansas • Honolulu, Hawaii + 14 more
- Conditions
- Air Pollution, Cardiovascular Health
- Interventions
- HEPA air filtration
- Other
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 45 Years to 80 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Asthma Control, Pulmonary Function, Quality of Life, Stress, Sleep Quality
- Interventions
- Energy Recovery Ventilator, Portable Air Cleaner, Energy Recovery Ventilator (Sham), Portable Air Cleaner (Sham)
- Device
- Lead sponsor
- The University of Texas at Arlington
- Other
- Eligibility
- 5 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2028
- U.S. locations
- 2
- States / cities
- Arlington, Texas • Plano, Texas
- Conditions
- Asthma Attack, Lung Function, Airway Inflammation
- Interventions
- Austin Air Cleaner
- Device
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 7 Years to 18 Years
- Enrollment
- 55 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Childhood Asthma
- Interventions
- Community Health Worker Intervention, Air Filter, Air Filter and Air Conditioner
- Behavioral · Other
- Lead sponsor
- University of Michigan
- Other
- Eligibility
- 6 Years to 12 Years
- Enrollment
- 126 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2010
- U.S. locations
- 1
- States / cities
- Ann Arbor, Michigan
- Conditions
- Cardiometabolic Health
- Interventions
- air filtration with air purifier with hepa filter, sham
- Other
- Lead sponsor
- University of Michigan
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 52 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- Ann Arbor, Michigan
- Conditions
- COPD, Eosinophilia
- Interventions
- Air purifier, Sham air purifier
- Device
- Lead sponsor
- Beth Israel Deaconess Medical Center
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 178 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Air Pollution, Cardiometabolic Health
- Interventions
- HEPA filter, Sham filter
- Device
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 65 Years to 84 Years
- Enrollment
- 52 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Viral Infection
- Interventions
- Active classroom HEPA cleaner, Sham classroom HEPA cleaner
- Other
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 6 Years to 90 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2030
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Pollution; Exposure, Smoke Inhalation, Exposure to Pollution
- Interventions
- Cigarette Smoke, Clean Air and Clean Clothing/Sham exposure
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 66 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- San Francisco, California