{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypoplastic+Left+Heart&page=2",
    "query": {
      "condition": "Hypoplastic Left Heart",
      "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=Hypoplastic+Left+Heart&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T06:47:53.985Z",
  "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": "NCT00399555",
      "title": "Neurodevelopmental Outcomes in Hypoplastic Left Heart Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Heart Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "29 Months",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "29 Months to 6 Years"
      },
      "enrollment_count": 28,
      "start_date": "2006-11",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2013-11-27",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00399555"
    },
    {
      "nct_id": "NCT07295730",
      "title": "3D Modalities for Medical Student Education of Congenital Heart Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tetralogy of Fallot (TOF)",
        "Hypoplastic Left Heart Syndrome (HLHS)"
      ],
      "interventions": [
        {
          "name": "3D-printed heart models and augmented reality",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2025-11-20",
      "completion_date": "2025-12-09",
      "has_results": false,
      "last_update_posted_date": "2025-12-26",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07295730"
    },
    {
      "nct_id": "NCT01856049",
      "title": "Umbilical Cord Blood Collection and Processing for Hypoplastic Left Heart Syndrome Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypoplastic Left Heart Syndrome (HLHS)"
      ],
      "interventions": [
        {
          "name": "Collection of umbilical cord blood",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 464,
      "start_date": "2012-05",
      "completion_date": "2024-11-12",
      "has_results": false,
      "last_update_posted_date": "2025-01-10",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 2,
      "location_summary": "Rochester, Minnesota • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01856049"
    },
    {
      "nct_id": "NCT00974025",
      "title": "Impact of Vitamin C on Endothelial Function and Exercise Capacity in Fontan-Palliated Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fontan Procedure",
        "Hypoplastic Left Heart Syndrome",
        "Tricuspid Atresia"
      ],
      "interventions": [
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "8 Years to 25 Years"
      },
      "enrollment_count": 53,
      "start_date": "2009-06",
      "completion_date": "2010-03",
      "has_results": false,
      "last_update_posted_date": "2017-06-01",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00974025"
    },
    {
      "nct_id": "NCT04467671",
      "title": "Two-Year Study of the Safety and Efficacy of the Second-Generation Tissue Engineered Vascular Grafts",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HLH - Hypoplastic Left Heart Syndrome",
        "DORV",
        "DILV - Double Inlet Left Ventricle",
        "Mitral Atresia",
        "Tricuspid Atresia",
        "Unbalanced AV Canal",
        "Single-ventricle",
        "Heart Defects, Congenital",
        "Cardiovascular Abnormalities",
        "Cardiovascular Diseases",
        "Heart Diseases"
      ],
      "interventions": [
        {
          "name": "Tissue Engineered Vascular Grafts",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Nationwide Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 24,
      "start_date": "2020-07-15",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2025-06-27",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04467671"
    },
    {
      "nct_id": "NCT01445041",
      "title": "Safety and Feasibility Study of Umbilical Cord Blood Cells for Infants With Hypoplastic Left Heart Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypoplastic Left Heart Syndrome"
      ],
      "interventions": [
        {
          "name": "Autologous Umbilical Cord Blood",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Michael Cotten",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "2 Days",
        "sex": "ALL",
        "summary": "Up to 2 Days"
      },
      "enrollment_count": 7,
      "start_date": "2011-09-01",
      "completion_date": "2016-04-15",
      "has_results": false,
      "last_update_posted_date": "2024-05-16",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01445041"
    },
    {
      "nct_id": "NCT00156455",
      "title": "Sleep Disordered Breathing in Children With Single Ventricle Physiology",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypoplastic Left Heart Syndrome",
        "Obstructive Sleep Apnea Syndrome",
        "Single Ventricle Physiology"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "2 Years",
        "sex": "ALL",
        "summary": "1 Month to 2 Years"
      },
      "enrollment_count": 0,
      "start_date": "2004-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-04-30",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00156455"
    },
    {
      "nct_id": "NCT04907526",
      "title": "Intramyocardial Injection of Autologous UCB-MNC During Fontan Surgery for SRV Dependent CHD",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Congenital Heart Disease, SRV Dependent"
      ],
      "interventions": [
        {
          "name": "Autologous mononuclear cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Timothy J Nelson, MD, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "2 Years to 5 Years"
      },
      "enrollment_count": 30,
      "start_date": "2021-06-01",
      "completion_date": "2025-08-30",
      "has_results": false,
      "last_update_posted_date": "2025-06-27",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04907526"
    },
    {
      "nct_id": "NCT03779711",
      "title": "Intramyocardial Injection of Autologous Umbilical Cord Blood Derived Mononuclear Cells During Surgical Repair of Hypoplastic Left Heart Syndrome",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypoplastic Left Heart Syndrome"
      ],
      "interventions": [
        {
          "name": "Autologous (self) mononuclear cells derived from umbilical cord blood",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Stage II Surgical repair",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "Timothy J Nelson, MD, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "12 Months",
        "sex": "ALL",
        "summary": "Up to 12 Months"
      },
      "enrollment_count": 95,
      "start_date": "2019-06-06",
      "completion_date": "2026-02",
      "has_results": true,
      "last_update_posted_date": "2025-07-08",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 5 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03779711"
    },
    {
      "nct_id": "NCT00734643",
      "title": "Family Adaptation Study Following the Diagnosis of Hypoplastic Left Heart Syndrome in a Newborn",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypoplastic Left Heart Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "3 Years",
        "sex": "ALL",
        "summary": "Up to 3 Years"
      },
      "enrollment_count": 213,
      "start_date": "2006-06",
      "completion_date": "2019-09-05",
      "has_results": false,
      "last_update_posted_date": "2020-01-29",
      "last_synced_at": "2026-05-22T06:47:53.985Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00734643"
    }
  ]
}