{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Respiratory+function+tests&page=6",
    "query": {
      "intervention": "Respiratory function tests",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 520,
    "total_pages": 52,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Respiratory+function+tests&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Respiratory+function+tests&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-28T14:12:10.263Z",
  "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": "NCT02924363",
      "title": "Effect of MitraClip on Acute and Chronic Reverse Cardiac Remodeling Assessed by CMR: The MITRA-REVERSE Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mitral Regurgitation"
      ],
      "interventions": [
        {
          "name": "Cardiac MRI with or without contrast dye",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood sample",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Dipan Shah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2017-01",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-20",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia • Houston, Texas",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02924363"
    },
    {
      "nct_id": "NCT01783288",
      "title": "Aldosterone & Sodium Regulation in Postural Tachycardia Syndrome - Screening",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Autonomic Function Testing",
          "type": "OTHER"
        },
        {
          "name": "Posture Study",
          "type": "OTHER"
        },
        {
          "name": "Measurement of Total Blood Volume",
          "type": "PROCEDURE"
        },
        {
          "name": "Exercise Capacity Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2013-02",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01783288"
    },
    {
      "nct_id": "NCT05685186",
      "title": "A Longitudinal, Observational Study of Primary Ciliary Dyskinesia in Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Ciliary Dyskinesia"
      ],
      "interventions": [
        {
          "name": "Spirometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Multiple Breath Washout (MBW)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Mucociliary Clearance (MCC)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT of the chest",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MRI of the chest",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "ReCode Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 31,
      "start_date": "2023-03-08",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05685186"
    },
    {
      "nct_id": "NCT04880551",
      "title": "Ventilation Imbalances in Mild to Moderate Chronic Obstructive Pulmonary Disease",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COPD",
        "Dyspnea",
        "Respiratory Disease",
        "Lung Diseases"
      ],
      "interventions": [
        {
          "name": "Fluoroscopy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 15,
      "start_date": "2021-06-30",
      "completion_date": "2024-04-25",
      "has_results": false,
      "last_update_posted_date": "2021-07-07",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04880551"
    },
    {
      "nct_id": "NCT06897670",
      "title": "Identifying Cerebral Hemodynamic Patterns in Mood Disorders and Mild Cognitive Impairment: A Functional Near-Infrared Spectroscopy (fNIRS) Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Major Depressive Disorder",
        "Bipolar Disorder",
        "Mild Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Observational assessment using functional near-infrared spectroscopy (fNIRS), a noninvasive, portable brain imaging tool that measures changes in brain blood flow and oxygen levels.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2025-03-26",
      "completion_date": "2028-03-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06897670"
    },
    {
      "nct_id": "NCT05587751",
      "title": "Evaluation of Gender-Affirming Treatments on Pulmonary Function in Transgender and Gender Diverse Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hormonal Gender-Affirming Therapy"
      ],
      "interventions": [
        {
          "name": "Spirometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Plethysmography",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2023-02-01",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-18",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05587751"
    },
    {
      "nct_id": "NCT02737202",
      "title": "Safety and Efficacy of Saracatinib In Subjects With Lymphangioleiomyomatosis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Lymphangioleiomyomatosis"
      ],
      "interventions": [
        {
          "name": "saracatinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 65 Years · Female only"
      },
      "enrollment_count": 28,
      "start_date": "2016-04",
      "completion_date": "2019-07-30",
      "has_results": false,
      "last_update_posted_date": "2020-07-30",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 5,
      "location_summary": "Stanford, California • Chicago, Illinois • Bethesda, Maryland + 2 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02737202"
    },
    {
      "nct_id": "NCT01658982",
      "title": "Cardiopulmonary Exercise Testing in Cirrhotic Patients: a Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "End Stage Liver Disease"
      ],
      "interventions": [
        {
          "name": "cardiopulmonary exercise testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2012-08",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2013-12-02",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01658982"
    },
    {
      "nct_id": "NCT01964339",
      "title": "Obesity Hypoventilation Syndrome Prevalence Study",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity Hypoventilation Syndrome"
      ],
      "interventions": [
        {
          "name": "BMI greater than or equal to 30kg/m2 scheduled for PSG. Undergo blood draw (venous blood gas and metabolic panel) and data collection from PSG study.",
          "type": "OTHER"
        },
        {
          "name": "BMI greater than or equal to 30kg/m2 scheduled for PSG. Undergo blood draw (arterial blood gas and metabolic panel) and data collection from PSG study.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Philips Respironics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2013-10-09",
      "completion_date": "2014-05-21",
      "has_results": false,
      "last_update_posted_date": "2018-12-11",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01964339"
    },
    {
      "nct_id": "NCT05728970",
      "title": "POC Performance Evaluation of LumiraDx SARS-CoV-2 Ag Ultra and SARS-CoV-2 & Flu A/B Tests.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-CoV-2",
        "Influenza A",
        "Influenza B",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "LumiraDx SARS-CoV-2 Ag Ultra",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "LumiraDx SARS-CoV-2 & Flu A/B",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "LumiraDx UK Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 716,
      "start_date": "2023-02-09",
      "completion_date": "2023-04-11",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-10-28T14:12:10.263Z",
      "location_count": 10,
      "location_summary": "Garden Grove, California • Lomita, California • DeLand, Florida + 6 more",
      "locations": [
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Lomita",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05728970"
    }
  ]
}