{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=33",
    "query": {
      "intervention": "Heart-Rate",
      "page": 33
    },
    "page_size": 10
  },
  "pagination": {
    "page": 33,
    "page_size": 10,
    "total_count": 1714,
    "total_pages": 172,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=34&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=32&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T09:31:55.141Z",
  "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": "NCT03069716",
      "title": "A Mobile Health Intervention in Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Idiopathic Pulmonary Arterial Hypertension",
        "Heritable Pulmonary Arterial Hypertension",
        "Associated Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Smartphone Text Messaging",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Charge HR",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 49,
      "start_date": "2017-08-02",
      "completion_date": "2020-04-24",
      "has_results": true,
      "last_update_posted_date": "2021-06-25",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03069716"
    },
    {
      "nct_id": "NCT05298748",
      "title": "The Effect of Womb Recordings on Maturation of Respiratory Control in Preterm Infants",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Apnea of Prematurity",
        "Intermittent Hypoxemia",
        "Bradycardia"
      ],
      "interventions": [
        {
          "name": "Womb sound recordings",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Week",
        "maximum_age": "5 Weeks",
        "sex": "ALL",
        "summary": "1 Week to 5 Weeks"
      },
      "enrollment_count": 34,
      "start_date": "2022-09-16",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2025-12-05",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05298748"
    },
    {
      "nct_id": "NCT01603784",
      "title": "Combining Exercise and Cognitive Training to Improve Everyday Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Effect of Exercise on Cognitive Function"
      ],
      "interventions": [
        {
          "name": "Intensive Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Home Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Health Education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "55 Years to 75 Years"
      },
      "enrollment_count": 96,
      "start_date": "2010-03",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2014-09-03",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01603784"
    },
    {
      "nct_id": "NCT05426070",
      "title": "Preliminary Efficacy of a Strength Training Intervention on Exercise Adherence and Weight Among Pre-Menopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physical Inactivity",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Strength training-based exercise",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 50 Years · Female only"
      },
      "enrollment_count": 39,
      "start_date": "2022-12-30",
      "completion_date": "2023-12-10",
      "has_results": false,
      "last_update_posted_date": "2024-01-08",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05426070"
    },
    {
      "nct_id": "NCT06443918",
      "title": "A Just-in-Time Adaptive Intervention for Child and Family Mental Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mental Health and Well-being",
        "Family Functioning"
      ],
      "interventions": [
        {
          "name": "A Just-in-Time Adaptive Intervention for Child and Family Mental Health",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Colliga Apps Corp.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 347,
      "start_date": "2024-05-20",
      "completion_date": "2026-01-14",
      "has_results": false,
      "last_update_posted_date": "2026-03-10",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 2,
      "location_summary": "Miami, Florida • Austin, Texas",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06443918"
    },
    {
      "nct_id": "NCT06445842",
      "title": "Short-term Circuit Training on Muscle Mass and Quality of Life in Sedentary Postmenopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postmenopausal"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "OTHER"
        },
        {
          "name": "No exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Loma Linda University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-05-25",
      "completion_date": "2025-11-25",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Loma Linda, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06445842"
    },
    {
      "nct_id": "NCT05652127",
      "title": "Mightier Play and Caregiver Stress and Wellbeing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress"
      ],
      "interventions": [
        {
          "name": "Mightier",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Neuromotion Labs",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 392,
      "start_date": "2023-01-09",
      "completion_date": "2023-11-19",
      "has_results": false,
      "last_update_posted_date": "2024-08-01",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05652127"
    },
    {
      "nct_id": "NCT03998527",
      "title": "Non-Invasive Spinal Cord Stimulation After Injury",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries"
      ],
      "interventions": [
        {
          "name": "Transcutaneous Electrical Spinal Cord Stimulation (TcESCS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Louisville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 36,
      "start_date": "2018-05-17",
      "completion_date": "2029-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-13",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03998527"
    },
    {
      "nct_id": "NCT01256346",
      "title": "Electrocardiography Versus Pulse Oximetry for Newborn Heart Rate Determination",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prematurity"
      ],
      "interventions": [
        {
          "name": "Apparatuses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "20 Minutes",
        "sex": "ALL",
        "summary": "Up to 20 Minutes"
      },
      "enrollment_count": 0,
      "start_date": "2011-04",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2014-12-02",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01256346"
    },
    {
      "nct_id": "NCT01400880",
      "title": "Electrode-based Sensor for Non-invasive Fetal Heart Rate and EMG Monitoring With Improved Reliability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Electrode-based Sensor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Convergent Engineering, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 103,
      "start_date": "2011-07",
      "completion_date": "2014-04",
      "has_results": true,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-24T09:31:55.141Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01400880"
    }
  ]
}