{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate",
    "query": {
      "intervention": "Heart-Rate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1696,
    "total_pages": 170,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T17:41:04.615Z",
  "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": "NCT01899586",
      "title": "Mechanisms and Functional Outcomes of Exercise Progression Models in the Elderly",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Elderly",
        "Sedentary"
      ],
      "interventions": [
        {
          "name": "Regional Specific Training Stimulus (RSTS)",
          "type": "OTHER"
        },
        {
          "name": "Aerobic Exercise Regimen (AE)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "70 Years and older"
      },
      "enrollment_count": 108,
      "start_date": "2009-09",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2014-03-04",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 2,
      "location_summary": "Baton Rouge, Louisiana • Durham, North Carolina",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01899586"
    },
    {
      "nct_id": "NCT06274164",
      "title": "Clinical and Molecular Biomarker Studies in RAI1 (Retinoic Acid-Induced 1) -Related Disorders",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "RAI1 Gene 17P11.2 Deletion+Duplication"
      ],
      "interventions": [
        {
          "name": "Electroencephalography/Polysomnography (EEG/PSG)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Skin Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "1 Month to 80 Years"
      },
      "enrollment_count": 90,
      "start_date": "2024-03-13",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-06-03",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06274164"
    },
    {
      "nct_id": "NCT05606406",
      "title": "Hypoxia and Heart Rate Variability",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive",
        "Hypoxia"
      ],
      "interventions": [
        {
          "name": "Nocturnal Oxygen",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 0,
      "start_date": "2026-05-30",
      "completion_date": "2026-07-29",
      "has_results": false,
      "last_update_posted_date": "2026-08-03",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05606406"
    },
    {
      "nct_id": "NCT03549078",
      "title": "A Multidimensional Behavioral Intervention for Those at Risk for Alzheimer's Dementia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Functional Aging",
        "Subjective Cognitive Concerns",
        "Compensation Strategies",
        "Brain Health Activities"
      ],
      "interventions": [
        {
          "name": "Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2017-01-01",
      "completion_date": "2019-08-14",
      "has_results": false,
      "last_update_posted_date": "2020-06-11",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03549078"
    },
    {
      "nct_id": "NCT04721314",
      "title": "Personalized Pacing: A New Paradigm for Patients With Diastolic Dysfunction or Heart Failure With Preserved Ejection Fraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pacemaker",
        "Diastolic Dysfunction",
        "Diastolic Heart Failure"
      ],
      "interventions": [
        {
          "name": "Adjustment of lower rate limit",
          "type": "DEVICE"
        },
        {
          "name": "Maintenance of lower rate limit",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "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": 123,
      "start_date": "2019-07-17",
      "completion_date": "2021-12-05",
      "has_results": false,
      "last_update_posted_date": "2022-02-09",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04721314"
    },
    {
      "nct_id": "NCT03332147",
      "title": "Clinical Evaluation of the RHEA Vital Sign Vigilance System in Hospital Patients Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vital Sign Monitoring"
      ],
      "interventions": [
        {
          "name": "Investigational Group",
          "type": "DEVICE"
        },
        {
          "name": "reference group-Earlysense system",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Darma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 80,
      "start_date": "2017-11-04",
      "completion_date": "2018-06-30",
      "has_results": false,
      "last_update_posted_date": "2019-04-11",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 3,
      "location_summary": "Washington D.C., District of Columbia • Boston, Massachusetts • Richmond, Virginia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03332147"
    },
    {
      "nct_id": "NCT03987204",
      "title": "Ivabradine for Rate Control in Permanent Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Atrial Fibrillation, Persistent"
      ],
      "interventions": [
        {
          "name": "Ivabradine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "21 Years to 90 Years"
      },
      "enrollment_count": 4,
      "start_date": "2019-06-15",
      "completion_date": "2019-09-17",
      "has_results": false,
      "last_update_posted_date": "2021-07-02",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03987204"
    },
    {
      "nct_id": "NCT06263179",
      "title": "Feasibility of Aerobic Exercise for Recovery From Work-related Concussion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Concussion, Brain"
      ],
      "interventions": [
        {
          "name": "Target Heartrate Aerobic Exercise",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "State University of New York at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 11,
      "start_date": "2024-07-01",
      "completion_date": "2025-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-06-12",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Williamsville, New York",
      "locations": [
        {
          "city": "Williamsville",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06263179"
    },
    {
      "nct_id": "NCT03333174",
      "title": "Prematurity Related Ventilatory Control (PRE-VENT) - Specific Aim 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infant,Premature"
      ],
      "interventions": [
        {
          "name": "Cardiorespiratory monitoring",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "98 Days",
        "sex": "ALL",
        "summary": "1 Day to 98 Days"
      },
      "enrollment_count": 25,
      "start_date": "2018-04-09",
      "completion_date": "2021-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-09-21",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03333174"
    },
    {
      "nct_id": "NCT03010774",
      "title": "Identifying At-Risk Patients and Predicting Deterioration of In-Patients Using Continuous Heart Rate, Respiratory Rate, and Movement Monitoring",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Quality"
      ],
      "interventions": [
        {
          "name": "Risk Stratification",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 166,
      "start_date": "2017-02-14",
      "completion_date": "2018-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-03-27",
      "last_synced_at": "2026-09-05T17:41:04.615Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03010774"
    }
  ]
}