{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oxygen+21+%25&page=5",
    "query": {
      "intervention": "Oxygen 21 %",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 99,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oxygen+21+%25&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oxygen+21+%25&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T06:35:16.645Z",
  "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": "NCT04626791",
      "title": "Modified VR-CAP and Acalabrutinib as First Line Therapy for the Treatment of Transplant-Eligible Patients With Mantle Cell Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Mantle Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Acalabrutinib",
          "type": "DRUG"
        },
        {
          "name": "Bortezomib",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rituximab and Hyaluronidase Human",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Academic and Community Cancer Research United",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 41,
      "start_date": "2021-08-03",
      "completion_date": "2028-08-03",
      "has_results": true,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 3,
      "location_summary": "New York, New York • Charlotte, North Carolina • Seattle, Washington",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04626791"
    },
    {
      "nct_id": "NCT04280484",
      "title": "Acute Intermittent Hypoxia in Persons With Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Intermittent Hypoxia",
          "type": "OTHER"
        },
        {
          "name": "Sham Hypoxia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shirley Ryan AbilityLab",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 10,
      "start_date": "2018-06-18",
      "completion_date": "2019-12-30",
      "has_results": false,
      "last_update_posted_date": "2020-02-24",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04280484"
    },
    {
      "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": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02473354"
    },
    {
      "nct_id": "NCT07605416",
      "title": "Testing an Experimental Approach to Treat Patients With Plasma Cell Leukemia, The QUANTUM Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Plasma Cell Leukemia"
      ],
      "interventions": [
        {
          "name": "Autologous Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Carfilzomib",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Daratumumab and Recombinant Human Hyaluronidase",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Lenalidomide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Plerixafor",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Recombinant Granulocyte Colony-Stimulating Factor",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Stem Cell Isolation",
          "type": "PROCEDURE"
        },
        {
          "name": "Teclistamab",
          "type": "DRUG"
        },
        {
          "name": "Transthoracic Echocardiography Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 74,
      "start_date": "2027-04-20",
      "completion_date": "2032-11-06",
      "has_results": false,
      "last_update_posted_date": "2026-10-07",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 10,
      "location_summary": "New Haven, Connecticut • North Haven, Connecticut • Baton Rouge, Louisiana + 7 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "North Haven",
          "state": "Connecticut"
        },
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07605416"
    },
    {
      "nct_id": "NCT01751971",
      "title": "Estimating Apnea Phenotypes From Polysomnography: Oxygen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Inspired oxygen (40%)",
          "type": "DRUG"
        },
        {
          "name": "Sham",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "20 Years to 79 Years"
      },
      "enrollment_count": 47,
      "start_date": "2012-11",
      "completion_date": "2016-07",
      "has_results": true,
      "last_update_posted_date": "2018-03-20",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01751971"
    },
    {
      "nct_id": "NCT06390930",
      "title": "Effects of Acute Intermittent Hypoxia on Neuroplasticity in MS",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multiple Sclerosis",
        "Multiple Sclerosis, Relapsing-Remitting",
        "Multiple Sclerosis, Secondary Progressive"
      ],
      "interventions": [
        {
          "name": "Acute Intermittent Hypoxia",
          "type": "OTHER"
        },
        {
          "name": "Sham Acute Intermittent Hypoxia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shirley Ryan AbilityLab",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 22,
      "start_date": "2025-02-01",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-02-23",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06390930"
    },
    {
      "nct_id": "NCT02300064",
      "title": "Exercise in Health and Chronic Obstructive Pulmonary Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Knee-extensor exercise test",
          "type": "OTHER"
        },
        {
          "name": "Exercise test with restricting/releasing blood flow",
          "type": "OTHER"
        },
        {
          "name": "Exercise test with variable oxygen concentration and MRI",
          "type": "OTHER"
        },
        {
          "name": "Exercise test with oral antioxidant or placebo cocktail",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 185,
      "start_date": "2009-01",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-06-01",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02300064"
    },
    {
      "nct_id": "NCT05464329",
      "title": "Mosunetuzumab in Combination With Platinum-Based Salvage Chemotherapy in Patients With Relapsed/Refractory Aggressive B Cell Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Large B-cell Lymphoma",
        "High-grade B-cell Lymphoma",
        "Transformed B-Cell Lymphoma",
        "Follicular Lymphoma Grade 3B"
      ],
      "interventions": [
        {
          "name": "Mosunetuzumab",
          "type": "DRUG"
        },
        {
          "name": "DHAX",
          "type": "DRUG"
        },
        {
          "name": "ICE",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2023-01-03",
      "completion_date": "2029-10-16",
      "has_results": false,
      "last_update_posted_date": "2026-01-08",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05464329"
    },
    {
      "nct_id": "NCT03315065",
      "title": "19F Thoracic Radiotherapy for Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Perfluorinated Gas/Oxygen Mixture",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hal C Charles",
      "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": 6,
      "start_date": "2018-02-16",
      "completion_date": "2019-06-25",
      "has_results": false,
      "last_update_posted_date": "2019-07-16",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03315065"
    },
    {
      "nct_id": "NCT04801810",
      "title": "Daily Low Oxygen Exposure and Weight Status",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity"
      ],
      "interventions": [
        {
          "name": "Normobaric hypoxia",
          "type": "OTHER"
        },
        {
          "name": "Normobaric normoxia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Florida State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "20 Years to 50 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-05",
      "completion_date": "2023-05",
      "has_results": false,
      "last_update_posted_date": "2022-04-01",
      "last_synced_at": "2026-10-09T06:35:16.645Z",
      "location_count": 1,
      "location_summary": "Tallahassee, Florida",
      "locations": [
        {
          "city": "Tallahassee",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04801810"
    }
  ]
}