{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=42",
    "query": {
      "intervention": "Heart-Rate",
      "page": 42
    },
    "page_size": 10
  },
  "pagination": {
    "page": 42,
    "page_size": 10,
    "total_count": 1714,
    "total_pages": 172,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=43&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart-Rate&page=41&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-26T04:08:47.507Z",
  "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": "NCT03743610",
      "title": "Physiological Adaptations to Simulated Intermittent Altitude on Human Health and Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Altitude Hypoxia"
      ],
      "interventions": [
        {
          "name": "Simulated altitude",
          "type": "OTHER"
        },
        {
          "name": "Placebo simulated altitude",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "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": 71,
      "start_date": "2019-01-01",
      "completion_date": "2023-10-25",
      "has_results": false,
      "last_update_posted_date": "2024-02-20",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03743610"
    },
    {
      "nct_id": "NCT05312996",
      "title": "Autonomic Nervous System Function - Hypertension",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Heart Rate Variability",
          "type": "OTHER"
        },
        {
          "name": "Galvanic Skin Response (Biopac)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Life University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "2021-10-01",
      "completion_date": "2023-10-26",
      "has_results": false,
      "last_update_posted_date": "2023-05-03",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05312996"
    },
    {
      "nct_id": "NCT03646760",
      "title": "The Improving ATTENDance to Cardiac Rehabilitation Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myocardial Infarction",
        "Heart Failure",
        "Heart Valve Diseases",
        "Cardiac Event",
        "Angina Pectoris",
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "HYCR",
          "type": "BEHAVIORAL"
        },
        {
          "name": "CBCR",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 282,
      "start_date": "2019-03-01",
      "completion_date": "2023-12-31",
      "has_results": true,
      "last_update_posted_date": "2025-07-29",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03646760"
    },
    {
      "nct_id": "NCT02599727",
      "title": "Effects of Isometric Exercises on Balance, Heart Rate, Pulse Ox and Blood Pressure",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Exercise, Isometric"
      ],
      "interventions": [
        {
          "name": "Isometric exercises",
          "type": "OTHER"
        },
        {
          "name": "No exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Carrick Institute for Graduate Studies",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2015-11",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-02-20",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Cape Canaveral, Florida",
      "locations": [
        {
          "city": "Cape Canaveral",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02599727"
    },
    {
      "nct_id": "NCT04096170",
      "title": "Improving Pain Control in Paraesophageal Hernia Repair: Intravenous Lidocaine Versus Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hernia, Paraesophageal"
      ],
      "interventions": [
        {
          "name": "IV lidocaine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2018-06-21",
      "completion_date": "2024-04-24",
      "has_results": true,
      "last_update_posted_date": "2026-06-23",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04096170"
    },
    {
      "nct_id": "NCT05194397",
      "title": "Exercise Training and NR Supplementation Trial to Improve Fitness in AYA HCT Survivors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoblastic Leukemia",
        "Cancer Survivors",
        "Aplastic Anemia",
        "Myelodysplastic Syndromes",
        "Myeloid Leukemia"
      ],
      "interventions": [
        {
          "name": "Nicotinamide Riboside",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Exercise Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "10 Years to 30 Years"
      },
      "enrollment_count": 80,
      "start_date": "2023-02-23",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-04",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 3,
      "location_summary": "Duarte, California • Philadelphia, Pennsylvania • Memphis, Tennessee",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05194397"
    },
    {
      "nct_id": "NCT03361189",
      "title": "Specialized Pacing for Patients With Congenital Heart Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Congenital Heart Disease",
        "Bradycardia Sinus"
      ],
      "interventions": [
        {
          "name": "Closed loop stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Standard rate response",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "14 Years to 65 Years"
      },
      "enrollment_count": 4,
      "start_date": "2021-05-09",
      "completion_date": "2021-11-03",
      "has_results": true,
      "last_update_posted_date": "2023-01-20",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03361189"
    },
    {
      "nct_id": "NCT04796870",
      "title": "RHBS Brain and Balance Study of Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Performance",
        "Balance"
      ],
      "interventions": [
        {
          "name": "Online Brain and Balance Training Program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "George Mason University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "55 Years to 80 Years"
      },
      "enrollment_count": 29,
      "start_date": "2021-04-28",
      "completion_date": "2021-08-02",
      "has_results": false,
      "last_update_posted_date": "2021-10-25",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Fairfax, Virginia",
      "locations": [
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04796870"
    },
    {
      "nct_id": "NCT04744740",
      "title": "In-Home Sleep Monitoring to Detect Suicide Risk in Veterans",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Suicidal Ideation",
        "Sleep Disturbance"
      ],
      "interventions": [
        {
          "name": "in-home sleep recording",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Palo Alto Veterans Institute for Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 100,
      "start_date": "2020-10-01",
      "completion_date": "2022-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-02-09",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04744740"
    },
    {
      "nct_id": "NCT06098352",
      "title": "The Impact of a Continuous Performance Task on the Stress Response",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress"
      ],
      "interventions": [
        {
          "name": "PEBL Continuous Performance Task",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Redlands",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2013-09-17",
      "completion_date": "2013-09-25",
      "has_results": false,
      "last_update_posted_date": "2023-10-24",
      "last_synced_at": "2026-10-26T04:08:47.507Z",
      "location_count": 1,
      "location_summary": "Redlands, California",
      "locations": [
        {
          "city": "Redlands",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06098352"
    }
  ]
}