{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+Comparator+-+nitrogen+gas&page=2",
    "query": {
      "intervention": "Placebo Comparator - nitrogen gas",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 265,
    "total_pages": 27,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+Comparator+-+nitrogen+gas&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+Comparator+-+nitrogen+gas&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T23:58:43.838Z",
  "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": "NCT01220713",
      "title": "Hyperbaric Oxygen Therapy (HBO2T) for Post-Concussive Symptoms (PSC) After Mild Traumatic Brain Injury (mTBI)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Mild Traumatic Brain Injury",
        "Post-Concussive Syndrome"
      ],
      "interventions": [
        {
          "name": "Hyperbaric Oxygen Therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "19 Years to 60 Years"
      },
      "enrollment_count": 60,
      "start_date": "2010-06",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2013-08-27",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 3,
      "location_summary": "Portsmouth, Virginia • Richmond, Virginia",
      "locations": [
        {
          "city": "Portsmouth",
          "state": "Virginia"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01220713"
    },
    {
      "nct_id": "NCT00655980",
      "title": "Vitamins in Nitrous Oxide Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Major Surgery",
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "Vitamin B12 and folic acid",
          "type": "DRUG"
        },
        {
          "name": "Nitrous oxide and placebo",
          "type": "DRUG"
        },
        {
          "name": "standard of care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "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": 687,
      "start_date": "2008-02",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2020-10-01",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00655980"
    },
    {
      "nct_id": "NCT01369641",
      "title": "The Effect of Sodium Thiosulfate Eardrops on Hearing Loss in Patients Who Receive Cisplatin Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Insertion of Pressure Equalization (PE) Tubes",
          "type": "PROCEDURE"
        },
        {
          "name": "Sodium Thiosulfate (STS)",
          "type": "DRUG"
        },
        {
          "name": "Saline (Placebo)",
          "type": "OTHER"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2011-08-24",
      "completion_date": "2013-05-02",
      "has_results": true,
      "last_update_posted_date": "2025-05-16",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01369641"
    },
    {
      "nct_id": "NCT04528771",
      "title": "S-Nitrosylation Therapy of COVID-19",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "SARS-CoV2 Infection",
        "Covid19"
      ],
      "interventions": [
        {
          "name": "SNO",
          "type": "DRUG"
        },
        {
          "name": "Nitrogen gas",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "James Reynolds",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-08-05",
      "completion_date": "2025-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-05-07",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04528771"
    },
    {
      "nct_id": "NCT01774786",
      "title": "A Study of Pertuzumab in Combination With Trastuzumab and Chemotherapy in Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Metastatic Gastroesophageal Junction or Gastric Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Gastric Cancer"
      ],
      "interventions": [
        {
          "name": "5-Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Pertuzumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 780,
      "start_date": "2013-06-10",
      "completion_date": "2019-12-31",
      "has_results": true,
      "last_update_posted_date": "2020-12-30",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 10,
      "location_summary": "Fort Myers, Florida • Chicago, Illinois • Goshen, Indiana + 7 more",
      "locations": [
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Goshen",
          "state": "Indiana"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        },
        {
          "city": "Albany",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01774786"
    },
    {
      "nct_id": "NCT06109779",
      "title": "Rilvegostomig + Chemotherapy as Adjuvant Therapy for Biliary Tract Cancer After Resection (ARTEMIDE-Biliary01)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Biliary Tract Cancer"
      ],
      "interventions": [
        {
          "name": "Rilvegostomig",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine/Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "S-1 [Tegafur/Oteracil/gimeracil]",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 760,
      "start_date": "2023-12-04",
      "completion_date": "2030-05-03",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 19 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06109779"
    },
    {
      "nct_id": "NCT00568061",
      "title": "Nitric Oxide in Myocardial Infarction Size",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Myocardial Infarction",
        "ST Elevation MI",
        "STEMI"
      ],
      "interventions": [
        {
          "name": "Nitric Oxide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mallinckrodt",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2006-06",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2019-11-21",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 11,
      "location_summary": "Mobile, Alabama • Miami, Florida • Chicago, Illinois + 6 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00568061"
    },
    {
      "nct_id": "NCT05014815",
      "title": "Ociperlimab With Tislelizumab and Chemotherapy in Participants With Untreated Metastatic Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Locally Advanced, Unresectable, or Metastatic Nonsmall Cell Lung Cancer (NSCLC)",
        "Nonsmall Cell Lung Cancer, Stage IIIB",
        "Nonsmall Cell Lung Cancer, Stage IV"
      ],
      "interventions": [
        {
          "name": "Ociperlimab",
          "type": "DRUG"
        },
        {
          "name": "Tislelizumab",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Nab paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Pemetrexed",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "BeiGene",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 272,
      "start_date": "2021-11-16",
      "completion_date": "2024-09-04",
      "has_results": true,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 11,
      "location_summary": "Los Angeles, California • Iowa City, Iowa • Las Vegas, Nevada + 8 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        },
        {
          "city": "New Hyde Park",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05014815"
    },
    {
      "nct_id": "NCT01903330",
      "title": "ERC1671/GM-CSF/Cyclophosphamide for the Treatment of Glioblastoma Multiforme",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Glioblastoma",
        "Gliosarcoma"
      ],
      "interventions": [
        {
          "name": "ERC1671",
          "type": "DRUG"
        },
        {
          "name": "GM-CSF",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Oral Control (Sucrose pill)",
          "type": "DRUG"
        },
        {
          "name": "Injectable control (Sodium Chloride Injection United States Pharmacopeia (USP) (0.9%))",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab/Bevacizumab Biosimilar",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Epitopoietic Research Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 84,
      "start_date": "2014-03",
      "completion_date": "2026-06",
      "has_results": false,
      "last_update_posted_date": "2025-03-05",
      "last_synced_at": "2026-09-30T23:58:43.838Z",
      "location_count": 3,
      "location_summary": "Orange, California • Boston, Massachusetts",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01903330"
    },
    {
      "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": "2026-09-30T23:58:43.838Z",
      "location_count": 1,
      "location_summary": "Alma, Michigan",
      "locations": [
        {
          "city": "Alma",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02463357"
    }
  ]
}