{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Monitors",
    "query": {
      "condition": "Heart Rate Monitors"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 17,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Monitors&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T08:00:27.722Z",
  "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": "NCT01360905",
      "title": "Study to Support Fetal Heart Rate and Uterine Contraction for Preterm Labor in Singleton and Multiple Pregnancies",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pre Term Labor",
        "Multiple Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Monica Healthcare Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "17 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "17 Years and older · Female only"
      },
      "enrollment_count": 8,
      "start_date": "2011-05",
      "completion_date": "2014-01",
      "has_results": false,
      "last_update_posted_date": "2014-01-20",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01360905"
    },
    {
      "nct_id": "NCT00989859",
      "title": "Photo-Plethysmographic Camera to Monitor Heart Rate, Respiration Rate and Oxygen Saturation in Infants",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Child Development"
      ],
      "interventions": [
        {
          "name": "Plethysmographic monitoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Minute",
        "maximum_age": "1 Week",
        "sex": "ALL",
        "summary": "1 Minute to 1 Week"
      },
      "enrollment_count": 20,
      "start_date": "2009-09",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2022-11-01",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00989859"
    },
    {
      "nct_id": "NCT03182439",
      "title": "Accuracy of Commercially Available Heart Rate Monitors III",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiac Rehabilitation"
      ],
      "interventions": [
        {
          "name": "Fit Bit Blaze",
          "type": "DEVICE"
        },
        {
          "name": "Garmin Forerunner 235",
          "type": "DEVICE"
        },
        {
          "name": "Tom Tom Spark Cardio",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2017-06-22",
      "completion_date": "2017-10-11",
      "has_results": false,
      "last_update_posted_date": "2017-10-19",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03182439"
    },
    {
      "nct_id": "NCT04450251",
      "title": "Testing a Wearable Monitor for Fetal Heart Rate Estimation, Fetal Movement and Uterine Activity Detection",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Data Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Owlet Baby Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 173,
      "start_date": "2018-08-29",
      "completion_date": "2023-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Lehi, Utah",
      "locations": [
        {
          "city": "Lehi",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04450251"
    },
    {
      "nct_id": "NCT02546011",
      "title": "The Monica Fetal Heart Monitor",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fetal Heart Tracing"
      ],
      "interventions": [
        {
          "name": "Fetal Heart Rate Monitor",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "St. Louis University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "13 Years to 55 Years · Female only"
      },
      "enrollment_count": 36,
      "start_date": "2014-01",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2016-08-05",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02546011"
    },
    {
      "nct_id": "NCT04232215",
      "title": "Medical Grade, Smartphone-based, Fetal Heart Rate Monitor for Outpatient Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy Related"
      ],
      "interventions": [
        {
          "name": "HeraBEAT™",
          "type": "DEVICE"
        },
        {
          "name": "Doppler fetal heart rate monitor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "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": 59,
      "start_date": "2021-02-03",
      "completion_date": "2022-08-31",
      "has_results": true,
      "last_update_posted_date": "2023-03-20",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04232215"
    },
    {
      "nct_id": "NCT03612063",
      "title": "Accuracy of Commercially Available Heart Rate Monitors in Athletes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Rate Monitors",
        "Athletes Heart"
      ],
      "interventions": [
        {
          "name": "Fitbit Iconic HR and Garmin Vivosmart HR",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Iconic HR and TomTom Spark 3",
          "type": "DEVICE"
        },
        {
          "name": "Garmin Vivosmart HR and TomTom Spark 3",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Iconic HR and Apple Watch III",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch III and Garmin Vivosmart HR",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch III and TomTom Spark 3",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2018-07-24",
      "completion_date": "2018-12-13",
      "has_results": false,
      "last_update_posted_date": "2019-04-10",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03612063"
    },
    {
      "nct_id": "NCT04116684",
      "title": "Digital Home Blood Pressure Monitoring in Type B Aortic Dissection Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aortic Dissection",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Withings Digital Blood Pressure Monitor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2019-09-23",
      "completion_date": "2021-01-20",
      "has_results": true,
      "last_update_posted_date": "2021-03-08",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04116684"
    },
    {
      "nct_id": "NCT05745337",
      "title": "Atrial Fibrillation: Chronic Beta-blocker Use Versus As-needed Rate Control Guided by Implantable Cardiac Monitor",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Diastolic Dysfunction",
        "HFpEF - Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "As needed pharmacological rate control with beta-blocker (metoprolol tartrate, metoprolol succinate) or calcium channel blocker (diltiazem, verapamil)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2023-02-06",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-03-03",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05745337"
    },
    {
      "nct_id": "NCT01582139",
      "title": "Feasibility Study of Closed Loop Control in Type 1 Diabetes Using Heart Rate Monitoring as an Exercise Marker",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 1 Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Heart rate informed SSM+HMM",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 12,
      "start_date": "2012-05",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2014-08-15",
      "last_synced_at": "2026-06-26T08:00:27.722Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01582139"
    }
  ]
}