{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Qt+Interval%2C+Variation+in",
    "query": {
      "condition": "Qt Interval, Variation in"
    },
    "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": "2026-06-07T20:38:11.597Z",
  "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": "NCT04966325",
      "title": "Thorough QT (TQT) Study to Evaluate the Effect of LC350189 on Cardiac Repolarization in Healthy Male and Female Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Hyperuricemia",
        "Gout",
        "Qt Interval, Variation in"
      ],
      "interventions": [
        {
          "name": "LC350189 200mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin 400mg",
          "type": "DRUG"
        },
        {
          "name": "LC350189 600mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "LG Chem",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 37,
      "start_date": "2021-09-23",
      "completion_date": "2021-12-07",
      "has_results": false,
      "last_update_posted_date": "2022-01-06",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04966325"
    },
    {
      "nct_id": "NCT01365806",
      "title": "Home Electrocardiogram (ECG) Monitoring After Heart Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiac Transplant Rejection",
        "Qt Interval, Variation in"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 345,
      "start_date": "2011-08",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2017-03-08",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • New York, New York",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01365806"
    },
    {
      "nct_id": "NCT04000542",
      "title": "Pharmacist Use of ECG to Inform Drug Therapy Decisions for Patients Receiving QT Prolonging Medications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Torsades de Pointe Caused by Drug (Disorder)",
        "Torsades de Pointes",
        "Qt Interval, Variation in"
      ],
      "interventions": [
        {
          "name": "Pharmacist Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Northeast Iowa Medical Education Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2019-07-11",
      "completion_date": "2020-03-31",
      "has_results": false,
      "last_update_posted_date": "2020-04-09",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 1,
      "location_summary": "Waterloo, Iowa",
      "locations": [
        {
          "city": "Waterloo",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04000542"
    },
    {
      "nct_id": "NCT05488470",
      "title": "QT Changes as Detected From LINQ ECG During Antiarrhythmic Loading (LINQ QT)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atrial Arrhythmia",
        "QT Interval, Variation in",
        "Arrhythmias, Cardiac"
      ],
      "interventions": [
        {
          "name": "LINQ/LINQ II",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2023-02-20",
      "completion_date": "2024-07-23",
      "has_results": true,
      "last_update_posted_date": "2025-05-13",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 3,
      "location_summary": "Jacksonville, Florida • Columbus, Ohio • Coos Bay, Oregon",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Coos Bay",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05488470"
    },
    {
      "nct_id": "NCT04568395",
      "title": "Acute Effects of TCIG vs ECIG in PLWH",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "E Cigarette Use",
        "Vaping",
        "Smoking",
        "Tobacco Smoking",
        "Nicotine Use Disorder",
        "Qt Interval, Variation in",
        "HIV I Infection",
        "Oxidative Stress",
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "TCIG",
          "type": "OTHER"
        },
        {
          "name": "ECIG",
          "type": "OTHER"
        },
        {
          "name": "sham control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "21 Years to 45 Years"
      },
      "enrollment_count": 37,
      "start_date": "2020-10-01",
      "completion_date": "2023-05-08",
      "has_results": false,
      "last_update_posted_date": "2023-10-04",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04568395"
    },
    {
      "nct_id": "NCT02217930",
      "title": "Study to Evaluate the Effect Of WCK 2349 on the QT/QTc Interval in Health Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Qt Interval, Variation in"
      ],
      "interventions": [
        {
          "name": "WCK 2349",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wockhardt",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 80,
      "start_date": "2014-08",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2015-10-29",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 1,
      "location_summary": "West Bend, Wisconsin",
      "locations": [
        {
          "city": "West Bend",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02217930"
    },
    {
      "nct_id": "NCT02241252",
      "title": "Using an iPhone ECG to Monitor the QT Interval on Dofetilide and Sotalol Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiac Arrhythmia",
        "Qt Interval, Variation in"
      ],
      "interventions": [
        {
          "name": "iPhone ECG",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2013-09",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-06-07T20:38:11.597Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02241252"
    }
  ]
}