{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=apneic+threshold+of+CO2",
    "query": {
      "intervention": "apneic threshold of CO2"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T11:08:33.979Z",
  "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": "NCT05558501",
      "title": "Intermittent Hypoxia-initiated Plasticity in Humans: A Multi-pronged Therapeutic Approach to Treat Sleep Apnea and Overlapping Co-morbidities",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Mild Intermittent Hypoxia",
          "type": "OTHER"
        },
        {
          "name": "Sham MIH",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "30 Years to 60 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-01-01",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-04",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05558501"
    },
    {
      "nct_id": "NCT04118387",
      "title": "Central Sleep Apnea : Physiologic Mechanisms to Inform Treatment",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sleep Disordered Breathing",
        "Able Bodied"
      ],
      "interventions": [
        {
          "name": "Acetazolamide + supplemental oxygen + PAP therapy",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem + PAP therapy",
          "type": "DRUG"
        },
        {
          "name": "Buspirone + PAP therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2021-01-07",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-20",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04118387"
    },
    {
      "nct_id": "NCT03445689",
      "title": "Oxygenation Instability and Maturation of Control of Breathing in Premature Infants",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infant,Premature"
      ],
      "interventions": [
        {
          "name": "Assessment of oxygenation instability",
          "type": "OTHER"
        },
        {
          "name": "Determination of mechanisms of hypoxemia episodes",
          "type": "OTHER"
        },
        {
          "name": "Assessment of respiratory instability",
          "type": "OTHER"
        },
        {
          "name": "apneic threshold of CO2",
          "type": "OTHER"
        },
        {
          "name": "Assessment of peripheral chemoreceptor function",
          "type": "OTHER"
        },
        {
          "name": "Assessment of central chemo-receptor function",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 70,
      "start_date": "2018-09-04",
      "completion_date": "2023-11-01",
      "has_results": false,
      "last_update_posted_date": "2025-03-18",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03445689"
    },
    {
      "nct_id": "NCT05589753",
      "title": "Sleep Disordered Breathing With Opioid Use",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sleep Apnea",
        "Opioid Use",
        "Sleep Disordered Breathing"
      ],
      "interventions": [
        {
          "name": "Hyperoxia",
          "type": "OTHER"
        },
        {
          "name": "Acetazolamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 150,
      "start_date": "2019-05-02",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05589753"
    },
    {
      "nct_id": "NCT02703220",
      "title": "Sleep Apnea in Elderly",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sleep Apnea",
        "Elderly Adults"
      ],
      "interventions": [
        {
          "name": "Hyperoxia/oxygen",
          "type": "OTHER"
        },
        {
          "name": "Acetazolamide",
          "type": "DRUG"
        },
        {
          "name": "Finasteride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "60 Years to 89 Years"
      },
      "enrollment_count": 100,
      "start_date": "2015-07-03",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-21",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02703220"
    },
    {
      "nct_id": "NCT07210606",
      "title": "Central Apnea in Heart Failure: Physiological Mechanisms to Inform Treatment",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sleep Disordered Breathing",
        "Able Bodied"
      ],
      "interventions": [
        {
          "name": "Trazodone + PAP therapy",
          "type": "DRUG"
        },
        {
          "name": "Oxygen + PAP therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2026-10-01",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07210606"
    },
    {
      "nct_id": "NCT00732199",
      "title": "Determinants of Age Related Breathing Instability During Non-Rapid-Eye-Movement (NREM) Sleep",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Apnea",
        "Age"
      ],
      "interventions": [
        {
          "name": "1) hyperventilation via noninvasive positive pressure ventilation 2) multiple trials of episodic hypoxia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 92,
      "start_date": "2008-10",
      "completion_date": "2015-04",
      "has_results": true,
      "last_update_posted_date": "2017-06-28",
      "last_synced_at": "2026-09-27T11:08:33.979Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00732199"
    }
  ]
}