{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=30%25+oxygen",
    "query": {
      "intervention": "30% oxygen"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 243,
    "total_pages": 25,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=30%25+oxygen&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T15:13:45.357Z",
  "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": "NCT03957213",
      "title": "Enhancing Cognition in Older Adults With Intermittent Hypoxia and Cognitive Training",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging"
      ],
      "interventions": [
        {
          "name": "Acute Intermittent Hypoxia",
          "type": "DEVICE"
        },
        {
          "name": "Computerized Cognitive Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "65 Years to 89 Years"
      },
      "enrollment_count": 11,
      "start_date": "2019-06-01",
      "completion_date": "2021-11-22",
      "has_results": false,
      "last_update_posted_date": "2022-01-04",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03957213"
    },
    {
      "nct_id": "NCT00736268",
      "title": "Coping Skills for Patients With Chronic Obstructive Pulmonary Disease (COPD) and Their Caregivers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Telephone-based Enhanced Coping Skills Training (CST)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Medical Care and COPD education and symptom monitoring (UMC)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 746,
      "start_date": "2008-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-08-07",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina • Columbus, Ohio",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00736268"
    },
    {
      "nct_id": "NCT00000263",
      "title": "Effects of Combined Alcohol and Nitrous Oxide Intake - 15",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid-Related Disorders",
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "30% Nitrous oxide",
          "type": "DRUG"
        },
        {
          "name": "0.25 g/Kg ethanol",
          "type": "OTHER"
        },
        {
          "name": "0.5 g/KG ethanol",
          "type": "OTHER"
        },
        {
          "name": "0 g/Kg ethanol",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 11,
      "start_date": "1997-01",
      "completion_date": "1998-10",
      "has_results": false,
      "last_update_posted_date": "2015-05-27",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000263"
    },
    {
      "nct_id": "NCT04898205",
      "title": "Cardiopulmonary Rehabilitation in COVID-19 Longhaulers",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19",
        "Viral Syndrome"
      ],
      "interventions": [
        {
          "name": "Treadmill Exercise",
          "type": "OTHER"
        },
        {
          "name": "Concentrated Oxygen",
          "type": "OTHER"
        },
        {
          "name": "Concentrated Air",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Noah Greenspan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 24,
      "start_date": "2021-01-21",
      "completion_date": "2022-01-20",
      "has_results": false,
      "last_update_posted_date": "2021-05-25",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04898205"
    },
    {
      "nct_id": "NCT02096575",
      "title": "Nitrous Oxide for Pain Management of First Trimester Surgical Abortion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Abortion in First Trimester"
      ],
      "interventions": [
        {
          "name": "Nitrous oxide administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 140,
      "start_date": "2012-08",
      "completion_date": "2015-04",
      "has_results": true,
      "last_update_posted_date": "2016-04-19",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02096575"
    },
    {
      "nct_id": "NCT06592261",
      "title": "Graded Insulin Suppression Test P&F",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Insulin Resistance",
        "Hyperinsulinemia",
        "Obesity",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Insulin regular, 2.0-3.2 mU/m2/min (euinsulinemia)",
          "type": "DRUG"
        },
        {
          "name": "Insulin regular, 32 mU/m2/min (hyperinsulinemia)",
          "type": "DRUG"
        },
        {
          "name": "Octreotide Acetate, 6-45 ng/kg/min",
          "type": "DRUG"
        },
        {
          "name": "Dextrose 20 % in Water",
          "type": "DRUG"
        },
        {
          "name": "Glucagon, 0-0.5 ng/kg/min",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2024-09-16",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06592261"
    },
    {
      "nct_id": "NCT00715741",
      "title": "Does High Intraoperative Inspired Oxygen Reduce Postoperative Arterial Oxygen Saturation?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Atelectasis"
      ],
      "interventions": [
        {
          "name": "FiO2 (fraction of inspired oxygen) 0.3 plus PEEP (positive end expiratory pressure) 3 -5 cm water",
          "type": "OTHER"
        },
        {
          "name": "FiO2 0.3 without PEEP",
          "type": "OTHER"
        },
        {
          "name": "FiO2 >0.9 with 3-5 cm water PEEP",
          "type": "OTHER"
        },
        {
          "name": "FiO2 >0.9 without PEEP",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Utah",
      "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": 100,
      "start_date": "2008-06",
      "completion_date": "2009-07",
      "has_results": true,
      "last_update_posted_date": "2010-02-18",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00715741"
    },
    {
      "nct_id": "NCT03433599",
      "title": "Repetitive Acute Intermittent Hypoxia for Spinal Cord Repair",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries"
      ],
      "interventions": [
        {
          "name": "Repeated exposure to acute Intermittent Hypoxia (rAIH)",
          "type": "OTHER"
        },
        {
          "name": "Normal Room Air",
          "type": "OTHER"
        },
        {
          "name": "Upper-limb Training by Research Staff",
          "type": "OTHER"
        },
        {
          "name": "Lower-limb Training by Research Staff",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shirley Ryan AbilityLab",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 60,
      "start_date": "2020-04-09",
      "completion_date": "2025-12-28",
      "has_results": false,
      "last_update_posted_date": "2022-06-30",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03433599"
    },
    {
      "nct_id": "NCT00725972",
      "title": "Pre-emptive Hemodynamic Optimization of High Risk Patients Undergoing Elective Major Surgical Procedures",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Augment O2 Delivery by hemodynamic protocol",
          "type": "OTHER"
        },
        {
          "name": "High Risk Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "University of Pittsburgh",
      "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": 0,
      "start_date": "2008-07",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-08-01",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00725972"
    },
    {
      "nct_id": "NCT07507344",
      "title": "Beverage Hydration Index of Different Solutions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hydration"
      ],
      "interventions": [
        {
          "name": "Hydramin hydration solution",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Carbohydrate and Electrolyte hydration solution",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Water",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Memphis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-02-23",
      "completion_date": "2026-07-23",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-09-02T15:13:45.357Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07507344"
    }
  ]
}