{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Rebreathing+test",
    "query": {
      "intervention": "Rebreathing test"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T19:40:49.571Z",
  "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": "NCT05422430",
      "title": "Rebreathing-induced Hypoxia and Glucose Levels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypoxemia"
      ],
      "interventions": [
        {
          "name": "Rebreathing-induced hypoxia",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spontaneous breathing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-10-21",
      "completion_date": "2025-10-13",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05422430"
    },
    {
      "nct_id": "NCT04047550",
      "title": "Respiratory Control and Narcotic Effects",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ventilatory Depression",
        "Opioid Intoxication",
        "Opioid Toxicity"
      ],
      "interventions": [
        {
          "name": "Ventilatory chemosensitivity",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Duke 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": "2018-03-08",
      "completion_date": "2019-02-09",
      "has_results": false,
      "last_update_posted_date": "2020-08-27",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04047550"
    },
    {
      "nct_id": "NCT02995837",
      "title": "Cerebral Blood Flow and Childhood Obstructive Sleep Apnea",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obstructive Sleep Apnea Syndrome"
      ],
      "interventions": [
        {
          "name": "Sleep Study",
          "type": "OTHER"
        },
        {
          "name": "Neurocognitive Testing",
          "type": "OTHER"
        },
        {
          "name": "CBF During Wakefulness",
          "type": "OTHER"
        },
        {
          "name": "CBF During Sleep",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 47,
      "start_date": "2016-10",
      "completion_date": "2022-01-01",
      "has_results": true,
      "last_update_posted_date": "2024-07-09",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02995837"
    },
    {
      "nct_id": "NCT04134754",
      "title": "Carbon Dioxide (CO2) Chemosensitivity and SUDEP",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Epilepsy",
        "SUDEP"
      ],
      "interventions": [
        {
          "name": "6% Carbon dioxide/50% oxygen/balance nitrogen mixture",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 335,
      "start_date": "2019-12-12",
      "completion_date": "2029-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-23",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04134754"
    },
    {
      "nct_id": "NCT01547117",
      "title": "Dietary Salt in Postural Tachycardia Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Orthostatic Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Blood Volume",
          "type": "RADIATION"
        },
        {
          "name": "Total Blood Volume",
          "type": "RADIATION"
        },
        {
          "name": "Exercise Capacity Test - Bicycle",
          "type": "PROCEDURE"
        },
        {
          "name": "Posture Study",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt 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": 38,
      "start_date": "2012-03",
      "completion_date": "2021-12",
      "has_results": true,
      "last_update_posted_date": "2022-02-22",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01547117"
    },
    {
      "nct_id": "NCT07002437",
      "title": "Hypoxia Pathways for Early Recovery After Spinal Cord Injury",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries (SCI)"
      ],
      "interventions": [
        {
          "name": "Augmented Acute Intermittent Hypoxia (aAIH)",
          "type": "OTHER"
        },
        {
          "name": "Acute Intermittent Hypercapnic-Hypoxia (AIHH)",
          "type": "OTHER"
        },
        {
          "name": "Sham AIH",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 18,
      "start_date": "2025-11-20",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2025-12-03",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07002437"
    },
    {
      "nct_id": "NCT06223035",
      "title": "Myokine Identification Following Acute Exercise",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adiposity"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Rockefeller University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 12,
      "start_date": "2024-04-18",
      "completion_date": "2024-08-09",
      "has_results": false,
      "last_update_posted_date": "2025-03-10",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06223035"
    },
    {
      "nct_id": "NCT02725060",
      "title": "Autoimmune Basis for Postural Tachycardia Syndrome",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Orthostatic Tachycardia Syndrome",
        "Postural Tachycardia Syndrome",
        "Tachycardia",
        "Arrhythmias, Cardiac",
        "Autonomic Nervous System Diseases",
        "Orthostatic Intolerance",
        "Cardiovascular Diseases",
        "Primary Dysautonomias"
      ],
      "interventions": [
        {
          "name": "phenylephrine",
          "type": "DRUG"
        },
        {
          "name": "isoproterenol",
          "type": "DRUG"
        },
        {
          "name": "25 micro-Ci of radiation",
          "type": "RADIATION"
        },
        {
          "name": "Posture study with blood samples",
          "type": "PROCEDURE"
        },
        {
          "name": "24-hour heart rhythm and blood pressure monitoring",
          "type": "PROCEDURE"
        },
        {
          "name": "Quantitative Axonal Sudomotor Reflex Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Autonomic function tests",
          "type": "PROCEDURE"
        },
        {
          "name": "Rebreathing test",
          "type": "OTHER"
        },
        {
          "name": "Assessment of splanchnic capacitance",
          "type": "OTHER"
        },
        {
          "name": "microneurography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "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": 58,
      "start_date": "2016-02",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-12",
      "last_synced_at": "2026-09-06T19:40:49.571Z",
      "location_count": 2,
      "location_summary": "Oklahoma City, Oklahoma • Nashville, Tennessee",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02725060"
    }
  ]
}