{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HEPA+air+cleaner",
    "query": {
      "intervention": "HEPA air cleaner"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 21,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HEPA+air+cleaner&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T02:56:24.820Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT04919915",
      "title": "Home Air in Agriculture: Pediatric Intervention Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "HEPA air cleaner",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 71,
      "start_date": "2015-07-14",
      "completion_date": "2019-02-27",
      "has_results": false,
      "last_update_posted_date": "2021-06-09",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Yakima, Washington",
      "locations": [
        {
          "city": "Yakima",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04919915"
    },
    {
      "nct_id": "NCT07047430",
      "title": "The Airports, Air Quality, and Asthma (AAA) Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pediatric Asthma"
      ],
      "interventions": [
        {
          "name": "Portable air cleaner with HEPA filter",
          "type": "DEVICE"
        },
        {
          "name": "Less effective portable air cleaner (no HEPA)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 60,
      "start_date": "2024-06-01",
      "completion_date": "2027-06-01",
      "has_results": false,
      "last_update_posted_date": "2025-07-02",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07047430"
    },
    {
      "nct_id": "NCT00839046",
      "title": "A Community-based Participatory Research (CBPR) Intervention for Childhood Asthma Using Air Filters and Air Conditioners",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Asthma"
      ],
      "interventions": [
        {
          "name": "Community Health Worker Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Air Filter",
          "type": "OTHER"
        },
        {
          "name": "Air Filter and Air Conditioner",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 126,
      "start_date": "2007-08",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2017-07-24",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00839046"
    },
    {
      "nct_id": "NCT05874479",
      "title": "Reducing AIR Pollution Exposure to Lower Blood PRESSURE Among New York City Public Housing Residents",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Active PAC",
          "type": "DEVICE"
        },
        {
          "name": "Sham PAC",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 440,
      "start_date": "2023-12-20",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-07-29",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05874479"
    },
    {
      "nct_id": "NCT05913765",
      "title": "Air Filtration for COPD in VA Population of Veterans",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "Air cleaner",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Illinois Institute of Technology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2023-01-11",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-23",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05913765"
    },
    {
      "nct_id": "NCT07196436",
      "title": "Asthma Intervention With Residential Ventilation and Air Cleaner (AIRVAC) Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma Control",
        "Pulmonary Function",
        "Quality of Life",
        "Stress",
        "Sleep Quality"
      ],
      "interventions": [
        {
          "name": "Energy Recovery Ventilator",
          "type": "DEVICE"
        },
        {
          "name": "Portable Air Cleaner",
          "type": "DEVICE"
        },
        {
          "name": "Energy Recovery Ventilator (Sham)",
          "type": "DEVICE"
        },
        {
          "name": "Portable Air Cleaner (Sham)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Texas at Arlington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2025-10-10",
      "completion_date": "2028-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-10-29",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 2,
      "location_summary": "Arlington, Texas • Plano, Texas",
      "locations": [
        {
          "city": "Arlington",
          "state": "Texas"
        },
        {
          "city": "Plano",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07196436"
    },
    {
      "nct_id": "NCT04119271",
      "title": "Durham Healthy Breathing in Healthy Homes Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Poor Asthma Control"
      ],
      "interventions": [
        {
          "name": "Breathe Easy at Home Kit Products",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "5 Years to 16 Years"
      },
      "enrollment_count": 26,
      "start_date": "2022-05-18",
      "completion_date": "2023-05-11",
      "has_results": false,
      "last_update_posted_date": "2023-12-04",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04119271"
    },
    {
      "nct_id": "NCT05934370",
      "title": "The Duke-Reinvestment Partners Community Collaborative (DRC)- Healthy Homes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Home-Based Environmental Interventions (HEI)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "4 Years to 16 Years"
      },
      "enrollment_count": 36,
      "start_date": "2023-07-20",
      "completion_date": "2024-11-19",
      "has_results": false,
      "last_update_posted_date": "2024-12-13",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05934370"
    },
    {
      "nct_id": "NCT02236858",
      "title": "Clinical Trial of Air Cleaners to Improve Indoor Air Quality and COPD Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease (COPD)"
      ],
      "interventions": [
        {
          "name": "HEPA Air Cleaner",
          "type": "DEVICE"
        },
        {
          "name": "Sham HEPA Air Cleaner",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 142,
      "start_date": "2014-03",
      "completion_date": "2021-09-10",
      "has_results": false,
      "last_update_posted_date": "2021-09-14",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02236858"
    },
    {
      "nct_id": "NCT00466024",
      "title": "Particulate Reduction Education in City Homes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Health Coach and HEPA air cleaners",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 125,
      "start_date": "2006-10",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2015-09-01",
      "last_synced_at": "2026-09-24T02:56:24.820Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00466024"
    }
  ]
}