{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Filtered+air+exposure",
    "query": {
      "intervention": "Filtered air exposure"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Filtered+air+exposure&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T22:00:43.817Z",
  "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": "NCT02133586",
      "title": "Effects of Sequential Exposure to Nitrogen Dioxide and Ozone in Healthy Adult Human Volunteers.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Depression"
      ],
      "interventions": [
        {
          "name": "Ozone",
          "type": "OTHER"
        },
        {
          "name": "Nitrogen dioxide",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Environmental Protection Agency (EPA)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 54,
      "start_date": "2014-01",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2020-08-17",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02133586"
    },
    {
      "nct_id": "NCT01192477",
      "title": "Ozone Cardiovascular Effects in Genetically Susceptible People",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Ozone",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 80,
      "start_date": "2011-05",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2013-12-04",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01192477"
    },
    {
      "nct_id": "NCT05323240",
      "title": "Health Effects of Repeated Exposure to Low Levels of Concentrated Ambient Particles in Healthy Young Volunteers",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Air Pollution"
      ],
      "interventions": [
        {
          "name": "PM exposure",
          "type": "OTHER"
        },
        {
          "name": "Filtered air exposure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "U.S. EPA Human Studies Facility",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 20,
      "start_date": "2022-05-12",
      "completion_date": "2025-12-20",
      "has_results": false,
      "last_update_posted_date": "2023-11-28",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05323240"
    },
    {
      "nct_id": "NCT00434005",
      "title": "Effect of Diesel Exhaust Particulate Exposures on Endothelial Function in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "N-acetylcysteine, ascorbate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 24,
      "start_date": "2008-07",
      "completion_date": "2010-08",
      "has_results": false,
      "last_update_posted_date": "2013-01-16",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00434005"
    },
    {
      "nct_id": "NCT03395119",
      "title": "Efficacy of Fish Oil or Olive Oil Supplementation on the Health Effects of Ozone Exposure in Healthy Young Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Dietary Supplement"
      ],
      "interventions": [
        {
          "name": "Ozone",
          "type": "DRUG"
        },
        {
          "name": "Fish Oil",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Olive Oil",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 44,
      "start_date": "2017-12-18",
      "completion_date": "2020-12-18",
      "has_results": false,
      "last_update_posted_date": "2021-01-15",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03395119"
    },
    {
      "nct_id": "NCT01874834",
      "title": "Cardiopulmonary Responses to Exposure to Ozone and Diesel Exhaust",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Depression",
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "ozone",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Environmental Protection Agency (EPA)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 15,
      "start_date": "2010-08",
      "completion_date": "2013-01",
      "has_results": false,
      "last_update_posted_date": "2013-06-11",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01874834"
    },
    {
      "nct_id": "NCT06066749",
      "title": "Efficacy of Respiratory Protection Against the Effects of Wood Smoke Exposure in Young Healthy Adults",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Filtration of all PM and VOC's",
          "type": "OTHER"
        },
        {
          "name": "Filtration of VOC's",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 50,
      "start_date": "2024-06-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2025-06-12",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06066749"
    },
    {
      "nct_id": "NCT01492517",
      "title": "Epigenetic Effects of Diesel Exhaust and Ozone Exposure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Exposure to Pollution",
        "Inhalation of Ozone"
      ],
      "interventions": [
        {
          "name": "Ozone exposure",
          "type": "OTHER"
        },
        {
          "name": "Diesel exhaust",
          "type": "OTHER"
        },
        {
          "name": "Ozone18",
          "type": "OTHER"
        },
        {
          "name": "Clean Air",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Environmental Protection Agency (EPA)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 42,
      "start_date": "2010-05",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2016-01-18",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01492517"
    },
    {
      "nct_id": "NCT01475968",
      "title": "Physiological Changes in Adults With Metabolic Syndrome Exposed to Ultrafine Air Particles",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Syndrome"
      ],
      "interventions": [
        {
          "name": "Ultrafine Air Pollution Particulate Matter",
          "type": "OTHER"
        },
        {
          "name": "Filtered Air",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "David Diaz-Sanchez",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "25 Years to 70 Years"
      },
      "enrollment_count": 48,
      "start_date": "2004-12",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2013-11-07",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01475968"
    },
    {
      "nct_id": "NCT07151235",
      "title": "Wildfire Related Air Pollution Exposure and Cognitive Function Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Simulated wildfire smoke exposure",
          "type": "OTHER"
        },
        {
          "name": "Clean Air exposure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 12,
      "start_date": "2025-09-18",
      "completion_date": "2025-11-20",
      "has_results": false,
      "last_update_posted_date": "2025-12-02",
      "last_synced_at": "2026-09-12T22:00:43.817Z",
      "location_count": 1,
      "location_summary": "Piscataway, New Jersey",
      "locations": [
        {
          "city": "Piscataway",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07151235"
    }
  ]
}