{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fetal+Heart+Disorder&page=2",
    "query": {
      "condition": "Fetal Heart Disorder",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 55,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fetal+Heart+Disorder&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fetal+Heart+Disorder&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T17:05:51.191Z",
  "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": "NCT07643896",
      "title": "The ADVANCE (Assay Development and Validation for Pre-Natal and Obstetric Conditions) Study is the Largest U.S.-Based Prospective Study Demonstrating a Circulating Fetal Cell (CFC) Based Approach to Non-invasive Fetal Risk Assessment",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnant Individuals",
        "Aneuploidy",
        "Down Syndrome (Trisomy 21)",
        "22q11.2 Deletion Syndrome",
        "Trisomy 13",
        "Trisomy 18",
        "Sex Chromosome Abnormalities"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "BillionToOne Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 1000,
      "start_date": "2026-01-10",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 6,
      "location_summary": "Phoenix, Arizona • West Covina, California • Sarasota, Florida + 3 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "West Covina",
          "state": "California"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07643896"
    },
    {
      "nct_id": "NCT05472597",
      "title": "Continuation of the nuMoM2b Heart Health Study",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "RTI International",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 4048,
      "start_date": "2022-11-29",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 14,
      "location_summary": "Orange, California • Newark, Delaware • Chicago, Illinois + 9 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05472597"
    },
    {
      "nct_id": "NCT05548881",
      "title": "Implications of Maternal 45,X Mosaicism as a Secondary Genomic Finding Following Cell-Free DNA Sequencing During Pregnancy: A Deep Phenotype Study",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Phenotype",
        "Metabolic Phenotype",
        "Hypertensive Disease",
        "Psychological Phenotype",
        "Audio"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 99 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2025-04-01",
      "completion_date": "2025-04-01",
      "has_results": false,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05548881"
    },
    {
      "nct_id": "NCT02278874",
      "title": "High Risk Multiple Gestation Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Trisomy 13",
        "Trisomy 18",
        "Trisomy 21",
        "Sex Chromosome Abnormalities"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Natera, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 99,
      "start_date": "2014-08",
      "completion_date": "2019-03",
      "has_results": false,
      "last_update_posted_date": "2019-06-13",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 4,
      "location_summary": "Boston, Massachusetts • Glen Cove, New York • New York, New York + 1 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Glen Cove",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02278874"
    },
    {
      "nct_id": "NCT01574781",
      "title": "Non-invasive Prenatal Diagnostic Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chromosome 13 Aneuploidy",
        "Chromosome 18 Aneuploidy",
        "Chromosome 21 Aneuploidy",
        "Sex Chromosome Aberrations",
        "Other Microdeletions"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Cheek swab/Saliva Sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Natera, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1781,
      "start_date": "2011-09",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2013-07-02",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 1,
      "location_summary": "Redwood City, California",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01574781"
    },
    {
      "nct_id": "NCT02565485",
      "title": "Pulse Pressure and Post-epidural Fetal Heart Rate Changes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fetus or Neonate Affected by Maternal Epidural Anesthesia During Labor and Delivery"
      ],
      "interventions": [
        {
          "name": "Lactated Ringer's",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "MetroHealth Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 276,
      "start_date": "2015-09-01",
      "completion_date": "2016-11-01",
      "has_results": true,
      "last_update_posted_date": "2018-07-09",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02565485"
    },
    {
      "nct_id": "NCT00847990",
      "title": "Non-Invasive Screening for Fetal Aneuploidy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Down Syndrome",
        "Edwards Syndrome"
      ],
      "interventions": [
        {
          "name": "Maternal blood screening test for fetal aneuploidy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Sequenom, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 5000,
      "start_date": "2009-03",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2011-09-05",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 25,
      "location_summary": "Mesa, Arizona • Phoenix, Arizona • Tucson, Arizona + 18 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00847990"
    },
    {
      "nct_id": "NCT06342999",
      "title": "Fetal Aortic Valvuloplasty for Evolving Hypoplastic Left Heart Syndrome",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypoplastic Left Heart Syndrome"
      ],
      "interventions": [
        {
          "name": "Fetal Aortic Valvuloplasty Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Emerge Monorail and Over-The-Wire PTCA Dilatation Catheter",
          "type": "DEVICE"
        },
        {
          "name": "Trek RX and Mini Trek RX Coronary Dilatation Catheter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "Mauro H. Schenone",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "Up to 45 Years · Female only"
      },
      "enrollment_count": 80,
      "start_date": "2027-01-01",
      "completion_date": "2036-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-01",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06342999"
    },
    {
      "nct_id": "NCT04474223",
      "title": "Surveillance and Treatment to Prevent Fetal Atrioventricular Block Likely to Occur Quickly (STOP BLOQ)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "AVB - Atrioventricular Block",
        "Fetal AVB"
      ],
      "interventions": [
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "IVIG",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "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": 1300,
      "start_date": "2020-08-01",
      "completion_date": "2029-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 23,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Palo Alto, California + 17 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04474223"
    },
    {
      "nct_id": "NCT00770458",
      "title": "Non-Invasive Screening for Fetal Aneuploidy: A New Maternal Plasma Marker",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Down Syndrome (Trisomy 21)",
        "Edwards Syndrome (Trisomy 18)",
        "Patau Syndrome (Trisomy 13)",
        "Turner Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Sequenom, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1000,
      "start_date": "2008-06",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2010-01-06",
      "last_synced_at": "2026-09-30T17:05:51.191Z",
      "location_count": 7,
      "location_summary": "La Jolla, California • San Diego, California • San Jose, California + 4 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Jose",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00770458"
    }
  ]
}