{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Signs+and+Symptoms%2C+Respiratory&page=6",
    "query": {
      "condition": "Signs and Symptoms, Respiratory",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 4704,
    "total_pages": 471,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Signs+and+Symptoms%2C+Respiratory&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Signs+and+Symptoms%2C+Respiratory&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T12:59:07.888Z",
  "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": "NCT02204696",
      "title": "Tonsillectomy in Adults With Tonsillar Hypertrophy and Obstructive Sleep Apnea",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Tonsillectomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "17 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "17 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2010-12",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2015-12-02",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02204696"
    },
    {
      "nct_id": "NCT02759120",
      "title": "CleanUP IPF for the Pulmonary Trials Cooperative",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Idiopathic Pulmonary Fibrosis"
      ],
      "interventions": [
        {
          "name": "Antimicrobial therapy: Co-trimoxazole or Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "No Intervention: Standard of Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 513,
      "start_date": "2017-03-22",
      "completion_date": "2020-03-16",
      "has_results": true,
      "last_update_posted_date": "2021-04-08",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 31,
      "location_summary": "Birmingham, Alabama • Tucson, Arizona • Sacramento, California + 22 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02759120"
    },
    {
      "nct_id": "NCT00932646",
      "title": "Characterisation of 24-hour FEV1-time Profiles of Inhaled BI 1744 CL and Inhaled Foradil in Patients With Chronic Obstructive Pulmonary Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "BI 1744 (Olodaterol) Low Dose",
          "type": "DRUG"
        },
        {
          "name": "BI 1744 (Olodaterol) Medium Dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Foradil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2009-06",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2016-02-05",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 13,
      "location_summary": "Jasper, Alabama • Clearwater, Florida • DeLand, Florida + 10 more",
      "locations": [
        {
          "city": "Jasper",
          "state": "Alabama"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Winter Park",
          "state": "Florida"
        },
        {
          "city": "Austell",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00932646"
    },
    {
      "nct_id": "NCT01833390",
      "title": "MagniXene MRI Use in Patients With Asthma and COPD to Assess Regional Lung Function by Delineating Ventilation Defects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma",
        "COPD",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "HXe MRI lung ventilation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Xemed LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 58,
      "start_date": "2011-09",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2015-03-11",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01833390"
    },
    {
      "nct_id": "NCT04356690",
      "title": "Etoposide in Patients With COVID-19 Infection",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Etoposide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2020-05-08",
      "completion_date": "2022-07-01",
      "has_results": true,
      "last_update_posted_date": "2023-06-15",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04356690"
    },
    {
      "nct_id": "NCT02478359",
      "title": "Walk On! Physical Activity Coaching",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease (COPD)"
      ],
      "interventions": [
        {
          "name": "Physical Activity Coaching (Walk On!)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "41 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "41 Years and older"
      },
      "enrollment_count": 2707,
      "start_date": "2015-06",
      "completion_date": "2018-12",
      "has_results": true,
      "last_update_posted_date": "2020-02-19",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Pasadena, California",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02478359"
    },
    {
      "nct_id": "NCT02651116",
      "title": "Dextromethorphan Pediatric Acute Cough Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cough"
      ],
      "interventions": [
        {
          "name": "Dextromethorphan Hydrobromide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Cough recording device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "6 Years to 11 Years"
      },
      "enrollment_count": 131,
      "start_date": "2016-02-25",
      "completion_date": "2020-03-19",
      "has_results": true,
      "last_update_posted_date": "2021-04-28",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 18,
      "location_summary": "DeLand, Florida • Orlando, Florida • Blackfoot, Idaho + 13 more",
      "locations": [
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Blackfoot",
          "state": "Idaho"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        },
        {
          "city": "Bardstown",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02651116"
    },
    {
      "nct_id": "NCT05104749",
      "title": "Homeopathic Treatment of Post-acute COVID-19 Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Post-acute Covid-19 Syndrome"
      ],
      "interventions": [
        {
          "name": "Homeopathic Medication",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Southwest College of Naturopathic Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 77,
      "start_date": "2021-09-15",
      "completion_date": "2022-04-22",
      "has_results": true,
      "last_update_posted_date": "2023-11-22",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05104749"
    },
    {
      "nct_id": "NCT06985225",
      "title": "Evaluation of Ventilation Defects Downstream of Mucus Plugs in Patients With Muco-Obstructive Lung Disease",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Severe Asthma",
        "COPD",
        "Non-CF Bronchiectasis",
        "Cystic Fibrosis (CF)"
      ],
      "interventions": [
        {
          "name": "Hyperpolarized 129 Xenon",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 8,
      "start_date": "2025-06-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06985225"
    },
    {
      "nct_id": "NCT04876417",
      "title": "Transcranial Direct Current Stimulation (tDCS) for Post COVID-19 Fatigue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post Covid-19 Patients"
      ],
      "interventions": [
        {
          "name": "Transcranial Direct Current Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Sham Transcranial Direct Current Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 74,
      "start_date": "2022-06-15",
      "completion_date": "2023-04-30",
      "has_results": true,
      "last_update_posted_date": "2024-05-01",
      "last_synced_at": "2026-10-13T12:59:07.888Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04876417"
    }
  ]
}