{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Altitude&page=2",
    "query": {
      "intervention": "Altitude",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Altitude&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T11:27:15.801Z",
  "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": "NCT03192488",
      "title": "Effect of an H1 Receptor Antagonist on Exercise Performance in Hypoxia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypoxia, Altitude"
      ],
      "interventions": [
        {
          "name": "Cetirizine",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral capsule",
          "type": "DRUG"
        },
        {
          "name": "Hypoxia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 13,
      "start_date": "2017-08-31",
      "completion_date": "2018-06-06",
      "has_results": true,
      "last_update_posted_date": "2020-06-16",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03192488"
    },
    {
      "nct_id": "NCT03335917",
      "title": "Oxygen Transport in Normobaric vs. Hypobaric Hypoxia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypoxia, Altitude",
        "Exercise"
      ],
      "interventions": [
        {
          "name": "Hypoxia",
          "type": "OTHER"
        },
        {
          "name": "Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "19 Years to 45 Years"
      },
      "enrollment_count": 12,
      "start_date": "2017-08-15",
      "completion_date": "2018-06-01",
      "has_results": false,
      "last_update_posted_date": "2023-09-29",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03335917"
    },
    {
      "nct_id": "NCT01993667",
      "title": "Acetazolamide for the Prevention of High Altitude Illness: a Comparison of Dosing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Prophylaxis of Acute Mountain Sickness"
      ],
      "interventions": [
        {
          "name": "Low Dose Acetazolamide",
          "type": "DRUG"
        },
        {
          "name": "Normal Dose Acetazolamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 130,
      "start_date": "2012-03",
      "completion_date": "2016-11",
      "has_results": true,
      "last_update_posted_date": "2019-01-29",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01993667"
    },
    {
      "nct_id": "NCT02463357",
      "title": "Three New Ideas to Protect Special Forces From the Stress of High Altitude",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Mountain Sickness"
      ],
      "interventions": [
        {
          "name": "Quercetin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nifedipine extended release",
          "type": "DRUG"
        },
        {
          "name": "Methazolamide",
          "type": "DRUG"
        },
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Nitrite",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 148,
      "start_date": "2015-08",
      "completion_date": "2016-09",
      "has_results": true,
      "last_update_posted_date": "2021-03-30",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Alma, Michigan",
      "locations": [
        {
          "city": "Alma",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02463357"
    },
    {
      "nct_id": "NCT02482571",
      "title": "Metabolic Changes in the Activated Human Visual Cortex During Mild Hypoxia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Hypoxia"
      ],
      "interventions": [
        {
          "name": "Mild Hypoxia",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "MALE",
        "summary": "18 Years to 40 Years · Male only"
      },
      "enrollment_count": 25,
      "start_date": "2015-08-13",
      "completion_date": "2016-09-26",
      "has_results": true,
      "last_update_posted_date": "2019-03-19",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02482571"
    },
    {
      "nct_id": "NCT00724321",
      "title": "Effects of Iloprost on Hypoxic Pulmonary Vasoconstriction at Altitude",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypoxic Pulmonary Vasoconstriction"
      ],
      "interventions": [
        {
          "name": "iloprost",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loma Linda University",
      "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": 0,
      "start_date": "2008-07",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2015-09-18",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Loma Linda, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00724321"
    },
    {
      "nct_id": "NCT06392373",
      "title": "High Altitude Muscle Recovery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "High Altitude"
      ],
      "interventions": [
        {
          "name": "CHO+PRO",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "CHO",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "United States Army Research Institute of Environmental Medicine",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 8,
      "start_date": "2023-10-01",
      "completion_date": "2023-12-19",
      "has_results": false,
      "last_update_posted_date": "2025-03-20",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Natick, Massachusetts",
      "locations": [
        {
          "city": "Natick",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06392373"
    },
    {
      "nct_id": "NCT04186598",
      "title": "Evaluating the Utility of Continuous Positive Airway Pressure in the Treatment of High Altitude Pulmonary Edema",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Continuous Positive Airway Pressure",
        "High Altitude Pulmonary Edema"
      ],
      "interventions": [
        {
          "name": "CPAP mask system",
          "type": "DEVICE"
        },
        {
          "name": "Nifedipine 30 MG",
          "type": "DRUG"
        },
        {
          "name": "CPAP mask system without PEEP",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "CommonSpirit Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2020-01-20",
      "completion_date": "2023-09-13",
      "has_results": false,
      "last_update_posted_date": "2024-02-07",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Breckenridge, Colorado",
      "locations": [
        {
          "city": "Breckenridge",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04186598"
    },
    {
      "nct_id": "NCT03433651",
      "title": "Creatine Monohydrate Use for Preventing Altitude Induced Depression",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Creatine monohydrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mike O'Callaghan Military Hospital",
      "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": 0,
      "start_date": "2019-01-01",
      "completion_date": "2019-01-07",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Las Vegas, Nevada",
      "locations": [
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03433651"
    },
    {
      "nct_id": "NCT03743610",
      "title": "Physiological Adaptations to Simulated Intermittent Altitude on Human Health and Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Altitude Hypoxia"
      ],
      "interventions": [
        {
          "name": "Simulated altitude",
          "type": "OTHER"
        },
        {
          "name": "Placebo simulated altitude",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 71,
      "start_date": "2019-01-01",
      "completion_date": "2023-10-25",
      "has_results": false,
      "last_update_posted_date": "2024-02-20",
      "last_synced_at": "2026-09-07T11:27:15.801Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03743610"
    }
  ]
}