{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Exhaled+Nitric+Oxide",
    "query": {
      "condition": "Exhaled Nitric Oxide"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 47,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Exhaled+Nitric+Oxide&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T23:06:44.544Z",
  "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": "NCT00575445",
      "title": "The Use of Exhaled Nitric Oxide in Conjunction With the Asthma Control Test to Determine Asthma Control in Pediatric Patients",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Akron Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 100,
      "start_date": "2007-11",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2015-03-25",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Akron, Ohio",
      "locations": [
        {
          "city": "Akron",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00575445"
    },
    {
      "nct_id": "NCT00927758",
      "title": "Pilot Study to Examine the Post-Dose Changes in Exhaled Nitric Oxide (eNO) Following Treatment With Fluticasone Propionate (FP)/Salmeterol (SAL) Combination Product Advair",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "fluticasone propionate/salmeterol (Flu/Sal) : 100mcg/50mcg, 250mcg/50mcg,500mcg/50 mcg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sandoz",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 105,
      "start_date": "2009-06",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2017-03-29",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 3,
      "location_summary": "Gainesville, Florida • Iowa City, Iowa • Madison, Wisconsin",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00927758"
    },
    {
      "nct_id": "NCT01761006",
      "title": "Evaluation of FeNO During and Following Acute COPD Exacerbation",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "NIOX MINO®",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Wake Forest University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2013-03",
      "completion_date": "2014-09-23",
      "has_results": false,
      "last_update_posted_date": "2017-11-07",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01761006"
    },
    {
      "nct_id": "NCT00395096",
      "title": "Environmental Exposures, Genetics, and Exhaled Nitric Oxide in Pediatric Asthma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "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": 225,
      "start_date": "2006-07",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2021-08-09",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00395096"
    },
    {
      "nct_id": "NCT01355991",
      "title": "Effects of Anticholinergic or Long-Acting Beta 2 Agonist on FeNO and Pulmonary Function in SCI",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Spinal Cord Injury"
      ],
      "interventions": [
        {
          "name": "Tiotropium",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "James J. Peters Veterans Affairs Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2011-08",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2015-10-23",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 2,
      "location_summary": "West Orange, New Jersey • The Bronx, New York",
      "locations": [
        {
          "city": "West Orange",
          "state": "New Jersey"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01355991"
    },
    {
      "nct_id": "NCT03159273",
      "title": "Nitrate Supplementation During Final Examination Stress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Airway Disease"
      ],
      "interventions": [
        {
          "name": "Beetroot Juice Group",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Southern Methodist University",
      "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": 76,
      "start_date": "2014-01",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2018-05-23",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03159273"
    },
    {
      "nct_id": "NCT00280683",
      "title": "Effects of L-arginine Supplementation in Adults With Moderate to Severe Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "L-arginine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 20,
      "start_date": "2004-12",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2017-05-30",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00280683"
    },
    {
      "nct_id": "NCT06572228",
      "title": "Efficacy of Dupilumab Added to Medium Dose Inhaled Corticosteroid/Long-acting Beta-agonist (ICS/LABA) in Comparison to ICS Dose Escalation to High Dose ICS/LABA in Adolescent and Adult Patients With Uncontrolled Asthma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "dupilumab",
          "type": "DRUG"
        },
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        },
        {
          "name": "ICS/LABA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "12 Years to 80 Years"
      },
      "enrollment_count": 120,
      "start_date": "2024-08-26",
      "completion_date": "2027-04-24",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 51,
      "location_summary": "Bakersfield, California • La Jolla, California • Lancaster, California + 47 more",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06572228"
    },
    {
      "nct_id": "NCT00867477",
      "title": "PMRR-NO: Pulmonary Metabolic Radiation Response Versus Exhaled Nitric Oxide",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Gastrointestinal Disease",
        "Esophageal Cancer",
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Breathing Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Respiratory Symptoms Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pet Scan",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 163,
      "start_date": "2009-03",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2014-08-28",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00867477"
    },
    {
      "nct_id": "NCT01392144",
      "title": "Phase II Evaluation of Exhaled Nitric Oxide (NO)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Nitric oxide breath test",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2011-08",
      "completion_date": "2013-02",
      "has_results": false,
      "last_update_posted_date": "2013-04-04",
      "last_synced_at": "2026-07-23T23:06:44.544Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01392144"
    }
  ]
}