{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Methemoglobinemia",
    "query": {
      "condition": "Methemoglobinemia"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-21T20:57:50.717Z",
  "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": "NCT03542760",
      "title": "Acquired Methemoglobinemia Observational Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Methemoglobinemia, Acquired",
        "Methemoglobinemia"
      ],
      "interventions": [
        {
          "name": "Methylene Blue",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hospital Quality Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 24,
      "start_date": "2018-05-31",
      "completion_date": "2021-08-31",
      "has_results": false,
      "last_update_posted_date": "2023-04-12",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 32,
      "location_summary": "Los Angeles, California • Sacramento, California • Bridgeport, Connecticut + 27 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Bridgeport",
          "state": "Connecticut"
        },
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Palm Beach Gardens",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03542760"
    },
    {
      "nct_id": "NCT03869840",
      "title": "Accuracy of Detection of Methemoglobin With Pulse Oximetry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Collect Blood Values With Induced Hypoxia, Induced Methemoglobinemia, and Induced Hypoxia and Methemoglobinemia"
      ],
      "interventions": [
        {
          "name": "Sensor to spot check blood levels",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Nonin Medical, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 13,
      "start_date": "2019-03-26",
      "completion_date": "2019-03-29",
      "has_results": false,
      "last_update_posted_date": "2019-04-08",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03869840"
    },
    {
      "nct_id": "NCT00103025",
      "title": "Nitrite Infusion in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Sodium Nitrite",
          "type": "DRUG"
        },
        {
          "name": "Sodium Nitrite Injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 12,
      "start_date": "2005-02-04",
      "completion_date": "2011-05-10",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00103025"
    },
    {
      "nct_id": "NCT01402869",
      "title": "Methemoglobin Levels in Generally Anesthetized Pediatric Dental Patients Receiving Local Anesthetics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Methemoglobinemia"
      ],
      "interventions": [
        {
          "name": "4% prilocaine plain",
          "type": "DRUG"
        },
        {
          "name": "2% Lidocaine with 1:100,000 epinephrine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loma Linda University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "3 Years to 5 Years"
      },
      "enrollment_count": 91,
      "start_date": "2011-08",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2014-04-25",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 1,
      "location_summary": "Loma Linda, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01402869"
    },
    {
      "nct_id": "NCT00993694",
      "title": "Methemoglobinemia in Young Patients With Hematologic Cancer or Aplastic Anemia Treated With Dapsone",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Lymphoma",
        "Lymphoproliferative Disorder",
        "Methemoglobinemia",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Neoplasms",
        "Nonmalignant Neoplasm"
      ],
      "interventions": [
        {
          "name": "chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "dapsone",
          "type": "DRUG"
        },
        {
          "name": "medical chart review",
          "type": "OTHER"
        },
        {
          "name": "assessment of therapy complications",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 41,
      "start_date": "2009-01",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2017-04-17",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 2,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00993694"
    },
    {
      "nct_id": "NCT00005773",
      "title": "Early Inhaled Nitric Oxide for Respiratory Failure in Newborns",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Infant, Newborn",
        "Hypertension, Pulmonary",
        "Persistent Fetal Circulation Syndrome",
        "Pneumonia, Aspiration",
        "Respiratory Distress Syndrome, Newborn",
        "Respiratory Insufficiency"
      ],
      "interventions": [
        {
          "name": "Inhaled Nitric Oxide",
          "type": "DRUG"
        },
        {
          "name": "Standard iNO therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NICHD Neonatal Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "14 Days",
        "sex": "ALL",
        "summary": "Up to 14 Days"
      },
      "enrollment_count": 302,
      "start_date": "1998-08",
      "completion_date": "2003-08",
      "has_results": false,
      "last_update_posted_date": "2017-09-26",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Palo Alto, California + 14 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005773"
    },
    {
      "nct_id": "NCT00005776",
      "title": "Inhaled Nitric Oxide Study for Respiratory Failure in Newborns",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Infant, Newborn",
        "Hypertension, Pulmonary",
        "Persistent Fetal Circulation Syndrome",
        "Pneumonia, Aspiration",
        "Respiratory Distress Syndrome, Newborn",
        "Respiratory Insufficiency"
      ],
      "interventions": [
        {
          "name": "Inhaled nitric oxide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NICHD Neonatal Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "14 Days",
        "sex": "ALL",
        "summary": "Up to 14 Days"
      },
      "enrollment_count": 235,
      "start_date": "1995-10",
      "completion_date": "1998-05",
      "has_results": false,
      "last_update_posted_date": "2017-09-26",
      "last_synced_at": "2026-05-21T20:57:50.717Z",
      "location_count": 11,
      "location_summary": "Palo Alto, California • New Haven, Connecticut • Washington D.C., District of Columbia + 8 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005776"
    }
  ]
}