{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clean+air&page=2",
    "query": {
      "intervention": "Clean air",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clean+air&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-11T11:28:32.360Z",
  "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": "NCT01964807",
      "title": "Cardiovascular Assessment of the Effects of Tobacco and Nicotine Delivery Products",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adverse Effect of Other Agents Primarily Affecting the Cardiovascular System, Initial Encounter"
      ],
      "interventions": [
        {
          "name": "Cigarette, NIDA test type with 16.6 mg nicotine",
          "type": "OTHER"
        },
        {
          "name": "Cigarette, NIDA test type with <0.45 mg nicotine",
          "type": "OTHER"
        },
        {
          "name": "Electronic cigarette with 18 mg/ml nicotine",
          "type": "OTHER"
        },
        {
          "name": "Electronic Cigarette with no nicotine",
          "type": "OTHER"
        },
        {
          "name": "Moist snuff",
          "type": "OTHER"
        },
        {
          "name": "Sham Smoking",
          "type": "OTHER"
        },
        {
          "name": "Secondhand cigarette smoke (SHS)",
          "type": "OTHER"
        },
        {
          "name": "Conditioned, filtered air",
          "type": "OTHER"
        },
        {
          "name": "Sham Moist Snuff",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 81,
      "start_date": "2013-11-03",
      "completion_date": "2021-05-31",
      "has_results": false,
      "last_update_posted_date": "2021-12-27",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01964807"
    },
    {
      "nct_id": "NCT02183753",
      "title": "Effects of Wood Smoke Particles on Influenza-induced Nasal Inflammation in Normal Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Response of Viral Infection to Woodsmoke"
      ],
      "interventions": [
        {
          "name": "wood smoke",
          "type": "OTHER"
        },
        {
          "name": "clean air",
          "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": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 39,
      "start_date": "2014-07",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2015-06-11",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02183753"
    },
    {
      "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": "2026-09-11T11:28:32.360Z",
      "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": "NCT06841913",
      "title": "Woodsmoke Exposure, Influenza Infection, and Nasal Immunity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoke Exposure",
        "Influenza"
      ],
      "interventions": [
        {
          "name": "LAIV nasal vaccine is chosen as a model viral infection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Wood smoke",
          "type": "OTHER"
        },
        {
          "name": "Placebo for LAIV nasal vaccine is chosen as a model viral infection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo for Wood Smoke (clean Air Exposure)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "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": 112,
      "start_date": "2025-09-26",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06841913"
    },
    {
      "nct_id": "NCT01383252",
      "title": "Unsedated Colonoscopy for Colorectal Cancer Screening and Surveillance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colon Polyp"
      ],
      "interventions": [
        {
          "name": "Water infusion in lieu of air insufflation",
          "type": "PROCEDURE"
        },
        {
          "name": "Air method",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "VA Northern California Health Care System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 10,
      "start_date": "2010-02",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2013-06-17",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Mather, California",
      "locations": [
        {
          "city": "Mather",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01383252"
    },
    {
      "nct_id": "NCT07311967",
      "title": "Short-Term Health Outcomes of Cooking UFP Exposure",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Function Decline",
        "Air Pollution Exposure",
        "Respiratory Inflammation"
      ],
      "interventions": [
        {
          "name": "Clean Indoor Air Exposure (Control)",
          "type": "OTHER"
        },
        {
          "name": "Exposure to Cooking-Generated Ultrafine Particles and Gases",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2026-01-02",
      "completion_date": "2026-06-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-31",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07311967"
    },
    {
      "nct_id": "NCT00617110",
      "title": "Effects of Diesel Exhaust Followed by Administration of Nasal Spray Flu Vaccine on Individuals With & Without Allergies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "live attenuated influenza virus (LAIV) with clean air",
          "type": "OTHER"
        },
        {
          "name": "LAIV and diesel exhaust particles",
          "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": 54,
      "start_date": "2008-01",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2015-06-03",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00617110"
    },
    {
      "nct_id": "NCT04724733",
      "title": "Promoting Risk Reduction Among Young Adults With Asthma During Wildfire Smoke Events (TRAK)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Smoke Sense",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Smoke Sense Plus",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "26 Years",
        "sex": "ALL",
        "summary": "18 Years to 26 Years"
      },
      "enrollment_count": 67,
      "start_date": "2020-08-06",
      "completion_date": "2020-12-14",
      "has_results": true,
      "last_update_posted_date": "2023-04-28",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04724733"
    },
    {
      "nct_id": "NCT02206750",
      "title": "The Interaction of Social Factors With Air Pollution",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Exposure to Environmental Pollution, Non-occupational"
      ],
      "interventions": [
        {
          "name": "Clean Air",
          "type": "OTHER"
        },
        {
          "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": "33 Years",
        "sex": "ALL",
        "summary": "18 Years to 33 Years"
      },
      "enrollment_count": 40,
      "start_date": "2014-07",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-07-26",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02206750"
    },
    {
      "nct_id": "NCT02195401",
      "title": "The Effects of a Clean Room Sleeping Environment on Elemental and Chemical Concentrations in Children With Autism",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Autism"
      ],
      "interventions": [
        {
          "name": "Cleanroom",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Children's Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "3 Years to 21 Years"
      },
      "enrollment_count": 10,
      "start_date": "2010-05",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2014-07-21",
      "last_synced_at": "2026-09-11T11:28:32.360Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02195401"
    }
  ]
}