{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Long+qt+Syndrome&page=2",
    "query": {
      "condition": "Long qt Syndrome",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Long+qt+Syndrome&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T01:31:44.120Z",
  "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": "NCT03775954",
      "title": "Fetal Electrophysiologic Abnormalities in High-Risk Pregnancies Associated With Fetal Demise",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "High Risk Pregnancy",
        "Congenital Heart Disease",
        "Fetal Hydrops",
        "Twin Monochorionic Monoamniotic Placenta",
        "Gastroschisis",
        "Fetal Demise",
        "Stillbirth",
        "Fetal Arrhythmia",
        "Long QT Syndrome",
        "Intrauterine Fetal Death",
        "Sudden Infant Death",
        "Pregnancy Loss",
        "Twin Twin Transfusion Syndrome",
        "Birth Defect",
        "Fetal Cardiac Anomaly",
        "Fetal Cardiac Disorder",
        "Fetal Death",
        "Brugada Syndrome",
        "Fetal Tachycardia"
      ],
      "interventions": [
        {
          "name": "Fetal Magnetocardiogram and Neonatal Electrocardiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Substudy only: Maternal/Infant Pharmacogenomic assessment postnatally",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "GENETIC"
      ],
      "sponsor": "Medical College of Wisconsin",
      "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": 30,
      "start_date": "2018-07-01",
      "completion_date": "2028-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 2,
      "location_summary": "Madison, Wisconsin • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03775954"
    },
    {
      "nct_id": "NCT00548886",
      "title": "Low-dose Epinephrine Infusion Tests in Adolescent and Pediatric Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congenital Disorders"
      ],
      "interventions": [
        {
          "name": "Epinephrine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "3 Years to 18 Years"
      },
      "enrollment_count": 7,
      "start_date": "2008-02",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2017-12-06",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00548886"
    },
    {
      "nct_id": "NCT00005176",
      "title": "Long QT Syndrome-Population Genetics and Cardiac Studies",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases",
        "Heart Diseases",
        "Ventricular Arrhythmia",
        "Long QT Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "Up to 100 Years"
      },
      "enrollment_count": 2125,
      "start_date": "1985-08",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2015-10-22",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005176"
    },
    {
      "nct_id": "NCT00521794",
      "title": "Characteristics of Andersen-Tawil Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Andersen-Tawil Syndrome",
        "Andersen Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2007-11",
      "completion_date": "2012-10",
      "has_results": false,
      "last_update_posted_date": "2013-01-16",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 4,
      "location_summary": "San Francisco, California • Kansas City, Kansas • Rochester, New York + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00521794"
    },
    {
      "nct_id": "NCT04675788",
      "title": "Novel Approaches for Minimizing Drug-Induced QT Interval Lengthening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Long QT Syndrome",
        "Abnormalities, Drug-Induced"
      ],
      "interventions": [
        {
          "name": "Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Ibutilide",
          "type": "DRUG"
        },
        {
          "name": "Testosterone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "50 Years to 99 Years"
      },
      "enrollment_count": 73,
      "start_date": "2021-09-02",
      "completion_date": "2025-04-16",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 3,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04675788"
    },
    {
      "nct_id": "NCT00268060",
      "title": "Infant Medical Records: Case Report Proposal",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Disorders"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Healthcare of Atlanta",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "MALE",
        "summary": "Up to 21 Years · Male only"
      },
      "enrollment_count": 1,
      "start_date": "2004-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2007-05-07",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00268060"
    },
    {
      "nct_id": "NCT07277582",
      "title": "Evaluation of Efficacy and Safety of THRV-1268 in Long QT Syndrome Type 2 (LQTS 2)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Long QT Syndrome (LQTS) 2"
      ],
      "interventions": [
        {
          "name": "baseline lead-in",
          "type": "OTHER"
        },
        {
          "name": "THRV-1268",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Thryv Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2026-03-07",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 6,
      "location_summary": "Scottsdale, Arizona • San Francisco, California • Chicago, Illinois + 3 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07277582"
    },
    {
      "nct_id": "NCT01705925",
      "title": "Multicenter Evaluation of Children and Young Adults With Genotype Positive Long QT Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Long QT Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Pediatrix",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "Up to 20 Years"
      },
      "enrollment_count": 92,
      "start_date": "2012-03",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2019-05-06",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01705925"
    },
    {
      "nct_id": "NCT03834883",
      "title": "Reducing the Risk of Drug-Induced QT Interval Lengthening in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Long QT Syndrome",
        "Abnormalities, Drug-Induced"
      ],
      "interventions": [
        {
          "name": "Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Ibutilide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 27,
      "start_date": "2019-03-26",
      "completion_date": "2024-05-23",
      "has_results": true,
      "last_update_posted_date": "2025-07-01",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03834883"
    },
    {
      "nct_id": "NCT05906732",
      "title": "Study of LQT-1213 on QTc-induced Prolongation in Healthy Adult Subjects (Part1) and on Congenital Long QT in Patients Diagnosed With Type 2 or 3 Long QT Syndrome (Part 2).",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Long QT Syndrome"
      ],
      "interventions": [
        {
          "name": "LQT-1213",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Dofetilide 250 μg Cap",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thryv Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 42,
      "start_date": "2023-03-12",
      "completion_date": "2024-05-31",
      "has_results": true,
      "last_update_posted_date": "2025-07-24",
      "last_synced_at": "2026-07-22T01:31:44.120Z",
      "location_count": 1,
      "location_summary": "West Bend, Wisconsin",
      "locations": [
        {
          "city": "West Bend",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05906732"
    }
  ]
}