{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oxygen+21+%25&page=3",
    "query": {
      "intervention": "Oxygen 21 %",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 99,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oxygen+21+%25&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oxygen+21+%25&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T23:38:34.362Z",
  "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": "NCT03262766",
      "title": "Daily Intermittent Hypoxia and Task-Specific Upper Limb Training in Persons With Chronic Incomplete SCI",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries"
      ],
      "interventions": [
        {
          "name": "Acute Intermittent Hypoxia (AIH)",
          "type": "OTHER"
        },
        {
          "name": "Upper extremity training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sham Acute intermittent hypoxia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Shirley Ryan AbilityLab",
      "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": 80,
      "start_date": "2017-06-24",
      "completion_date": "2020-10-30",
      "has_results": false,
      "last_update_posted_date": "2020-02-19",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03262766"
    },
    {
      "nct_id": "NCT00645138",
      "title": "Comparison of Paravertebral Block With General Anesthesia in Patients Undergoing Breast Cancer Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Paravertebral Block",
          "type": "PROCEDURE"
        },
        {
          "name": "General Anesthesia",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2008-04",
      "completion_date": "2010-03",
      "has_results": false,
      "last_update_posted_date": "2011-08-05",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00645138"
    },
    {
      "nct_id": "NCT02473354",
      "title": "Predictors of Opioid-Induced Respiratory Depression (OIRD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Respiratory Depression"
      ],
      "interventions": [
        {
          "name": "Remifentanil",
          "type": "DRUG"
        },
        {
          "name": "Oxygen",
          "type": "DRUG"
        },
        {
          "name": "Carbon dioxide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke 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": 30,
      "start_date": "2015-04",
      "completion_date": "2018-04-29",
      "has_results": false,
      "last_update_posted_date": "2020-03-10",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02473354"
    },
    {
      "nct_id": "NCT06337318",
      "title": "Comparing Rituximab and Mosunetuzumab Drug Treatments for People With Low Tumor Burden Follicular Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Classic Follicular Lymphoma",
        "Follicular Lymphoma With Unusual Cytological Features"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Mosunetuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rituximab and Hyaluronidase Human",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2024-10-23",
      "completion_date": "2032-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 283,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 225 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06337318"
    },
    {
      "nct_id": "NCT01014546",
      "title": "Arsenic Trioxide With or Without Ascorbic Acid in Treating Patients With Myelofibrosis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Essential Thrombocythemia",
        "Polycythemia Vera",
        "Primary Myelofibrosis"
      ],
      "interventions": [
        {
          "name": "Arsenic Trioxide",
          "type": "DRUG"
        },
        {
          "name": "Ascorbic Acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2010-04",
      "completion_date": "2015-02",
      "has_results": false,
      "last_update_posted_date": "2022-07-22",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01014546"
    },
    {
      "nct_id": "NCT05455697",
      "title": "Tafasitamab, Retifanlimab, and Rituximab in Combination With Standard Therapy for the Treatment of Diffuse Large B-cell Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Diffuse Large B-Cell Lymphoma",
        "Grade 3b Follicular Lymphoma",
        "High Grade B-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Retifanlimab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rituximab and Hyaluronidase Human",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tafasitamab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Polatuzumab Vedotin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2023-01-26",
      "completion_date": "2027-01-07",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05455697"
    },
    {
      "nct_id": "NCT02464696",
      "title": "Non-invasive Ventilation in Reducing the Need for Intubation in Patients With Cancer and Respiratory Failure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Oxygen Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Positive Air Pressure Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 256,
      "start_date": "2015-10-06",
      "completion_date": "2026-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02464696"
    },
    {
      "nct_id": "NCT02075892",
      "title": "Mushroom Blend on Oxygen Kinetics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oxygen Utilization",
        "Oxygen Kinetics"
      ],
      "interventions": [
        {
          "name": "Mushroom Blend",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "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": 28,
      "start_date": "2014-08",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2014-12-04",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02075892"
    },
    {
      "nct_id": "NCT04759586",
      "title": "Nivolumab in Combination With Chemo-Immunotherapy for the Treatment of Newly Diagnosed Primary Mediastinal B-Cell Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Primary Mediastinal Large B-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Etoposide Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Prednisolone",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rituximab and Hyaluronidase Human",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 244,
      "start_date": "2021-10-05",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-10",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 215,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 162 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04759586"
    },
    {
      "nct_id": "NCT00142051",
      "title": "Inhaled Nitric Oxide for Pediatric Painful Sickle Crisis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "nitric oxide",
          "type": "DRUG"
        },
        {
          "name": "oxygen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "9 Years to 22 Years"
      },
      "enrollment_count": 18,
      "start_date": "2005-04",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2023-02-23",
      "last_synced_at": "2026-09-30T23:38:34.362Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00142051"
    }
  ]
}