{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=air+purifier",
    "query": {
      "intervention": "air purifier"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 23,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=air+purifier&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T00:00:22.716Z",
  "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": "NCT02763917",
      "title": "AIRWEIGHS: Investigating Obesity as a Susceptibility Factor for Air Pollution in Childhood Asthma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Active Air Purifier",
          "type": "DEVICE"
        },
        {
          "name": "Placebo Air Purifier",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "8 Years to 17 Years"
      },
      "enrollment_count": 198,
      "start_date": "2016-08",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2025-10-03",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02763917"
    },
    {
      "nct_id": "NCT04331353",
      "title": "The Allergen Reduction and Child Health Study (ARCHS)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Comparator 1 (tailored approach)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Comparator 2 (insecticidal bait)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Tulane University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 290,
      "start_date": "2020-11-15",
      "completion_date": "2028-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04331353"
    },
    {
      "nct_id": "NCT02381626",
      "title": "DRIIVE (Data and Research on Interventions to Improve the Vehicular Environment)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vehicular Environment"
      ],
      "interventions": [
        {
          "name": "HEPA air purifier",
          "type": "DEVICE"
        },
        {
          "name": "questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Log-book",
          "type": "OTHER"
        },
        {
          "name": "Urine sample",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "90 Years",
        "sex": "MALE",
        "summary": "21 Years to 90 Years · Male only"
      },
      "enrollment_count": 39,
      "start_date": "2014-12",
      "completion_date": "2020-10-18",
      "has_results": true,
      "last_update_posted_date": "2021-10-05",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02381626"
    },
    {
      "nct_id": "NCT02240134",
      "title": "Wood Stove Interventions and Child Respiratory Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lower Tract Respiratory Infection"
      ],
      "interventions": [
        {
          "name": "Education Intervention (Tx1)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Air Filtration Unit Treatment (Tx2)",
          "type": "DEVICE"
        },
        {
          "name": "Placebo Intervention (Tx3)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "University of Montana",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "Up to 5 Years"
      },
      "enrollment_count": 523,
      "start_date": "2014-11",
      "completion_date": "2020-03",
      "has_results": true,
      "last_update_posted_date": "2022-06-22",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02240134"
    },
    {
      "nct_id": "NCT07116460",
      "title": "Cost Effective Air Filtration Intervention in Low-Income Housing to Reduce Asthma Morbidity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma Attack",
        "Lung Function",
        "Airway Inflammation"
      ],
      "interventions": [
        {
          "name": "Austin Air Cleaner",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "7 Years to 18 Years"
      },
      "enrollment_count": 55,
      "start_date": "2026-01-30",
      "completion_date": "2028-04",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07116460"
    },
    {
      "nct_id": "NCT07540000",
      "title": "The INTERvening for LUNG Health Trial",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Spirometry"
      ],
      "interventions": [
        {
          "name": "Community health worker-delivered multi-component respiratory health intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "9 Years and older"
      },
      "enrollment_count": 800,
      "start_date": "2026-09-15",
      "completion_date": "2030-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07540000"
    },
    {
      "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": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04119271"
    },
    {
      "nct_id": "NCT01913795",
      "title": "Environmental Intervention to Reduce Allergens in Urban Schools and Childhood Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "integrated pest management",
          "type": "OTHER"
        },
        {
          "name": "air purifier",
          "type": "OTHER"
        },
        {
          "name": "Sham air purifier",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "4 Years to 15 Years"
      },
      "enrollment_count": 29,
      "start_date": "2013-05",
      "completion_date": "2015-08",
      "has_results": true,
      "last_update_posted_date": "2022-06-07",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01913795"
    },
    {
      "nct_id": "NCT05867381",
      "title": "Using Indoor Air Filtration to Slow Atherothrombosis Progression in Adults With Ischemic Heart Disease History",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Air Pollution",
        "Atherosclerosis"
      ],
      "interventions": [
        {
          "name": "HEPA filtration",
          "type": "DEVICE"
        },
        {
          "name": "Sham filtration",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "65 Years to 84 Years"
      },
      "enrollment_count": 112,
      "start_date": "2023-07-11",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05867381"
    },
    {
      "nct_id": "NCT03647397",
      "title": "PECO Air Purification in Hospital Rooms to Improve Health Outcomes for Pediatric Respiratory Distress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma",
        "Pneumonia",
        "Respiratory Distress Syndrome"
      ],
      "interventions": [
        {
          "name": "Photo Electrochemical Oxidation (PECO) for Air Purification",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Molekule",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "1 Year to 17 Years"
      },
      "enrollment_count": 274,
      "start_date": "2018-08-08",
      "completion_date": "2018-12-31",
      "has_results": false,
      "last_update_posted_date": "2019-05-17",
      "last_synced_at": "2026-09-03T00:00:22.716Z",
      "location_count": 1,
      "location_summary": "Rockford, Illinois",
      "locations": [
        {
          "city": "Rockford",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03647397"
    }
  ]
}