{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart%3B+Disease%2C+Activity&page=3",
    "query": {
      "condition": "Heart; Disease, Activity",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 327,
    "total_pages": 33,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart%3B+Disease%2C+Activity&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart%3B+Disease%2C+Activity&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-19T08:12:55.861Z",
  "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": "NCT04077229",
      "title": "Piloting Text Messages to Promote Positive Affect and Physical Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Coronary Syndrome"
      ],
      "interventions": [
        {
          "name": "Intervention arm: Text Message Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 63,
      "start_date": "2016-09",
      "completion_date": "2019-10",
      "has_results": false,
      "last_update_posted_date": "2020-02-21",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04077229"
    },
    {
      "nct_id": "NCT01280357",
      "title": "Accuracy and Reliability of Fetal Heart Rate and Uterine Contraction Monitoring Method",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy; Habitual Aborter",
        "Weeks of Gestation 37 or More"
      ],
      "interventions": [
        {
          "name": "Monica AN24 (K101081)",
          "type": "DEVICE"
        },
        {
          "name": "Philips 50XM",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Monica Healthcare Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 40 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2010-02",
      "completion_date": "2010-09",
      "has_results": true,
      "last_update_posted_date": "2013-03-21",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 2,
      "location_summary": "New York, New York • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01280357"
    },
    {
      "nct_id": "NCT01109992",
      "title": "Integrated Dual Exercise and Lexiscan Positron Emission Tomography: IDEALPET",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "Exercise plus Regadenoson (Lexercise)",
          "type": "DRUG"
        },
        {
          "name": "Regadenoson (Lexiscan)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 43,
      "start_date": "2011-02",
      "completion_date": "2017-06-06",
      "has_results": true,
      "last_update_posted_date": "2018-10-25",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01109992"
    },
    {
      "nct_id": "NCT07878975",
      "title": "HRV Variation in Rheumatoid Arthritis",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rheumatoid Arthritis (RA)"
      ],
      "interventions": [
        {
          "name": "Oura Ring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Central Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-09-01",
      "completion_date": "2027-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07878975"
    },
    {
      "nct_id": "NCT01325870",
      "title": "Hemodynamic Effects of Standard Cardiopulmonary Resuscitation (CPR), Active Compression Decompression CPR With an Inspiratory Impedance Device, and Standard CPR With an Intrathoracic Pressure Regulator During Out-of-hospital Cardiac Arrest",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiac Arrest",
        "Sudden Cardiac Death"
      ],
      "interventions": [
        {
          "name": "ACD-CPR",
          "type": "DEVICE"
        },
        {
          "name": "ITPR",
          "type": "DEVICE"
        },
        {
          "name": "S-CPR",
          "type": "PROCEDURE"
        },
        {
          "name": "Impedance Threshold Device (ITD)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Advanced Circulatory Systems",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2011-03",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2016-08-12",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Kalamazoo, Michigan",
      "locations": [
        {
          "city": "Kalamazoo",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01325870"
    },
    {
      "nct_id": "NCT02554890",
      "title": "Comparison of Sacubitril/Valsartan Versus Enalapril on Effect on NT-proBNP in Patients Stabilized From an Acute Heart Failure Episode.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acute Heart Failure"
      ],
      "interventions": [
        {
          "name": "sacubitril/valsartan (LCZ696)",
          "type": "DRUG"
        },
        {
          "name": "Enalapril",
          "type": "DRUG"
        },
        {
          "name": "sacubitril/valsartan (LCZ696) matching placebo",
          "type": "DRUG"
        },
        {
          "name": "enalapril matching placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 887,
      "start_date": "2016-04-29",
      "completion_date": "2018-07-24",
      "has_results": true,
      "last_update_posted_date": "2021-01-05",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 123,
      "location_summary": "Birmingham, Alabama • Fort Smith, Arkansas • Little Rock, Arkansas + 105 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02554890"
    },
    {
      "nct_id": "NCT04469790",
      "title": "Effects of Multi-day Interruptions in Sitting on Type 2 Diabetes-relevant Outcomes in Children",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sedentary Behavior",
        "Affect",
        "Metabolic Disturbance",
        "Anxiety",
        "Cardiac Autonomic Nervous System Function"
      ],
      "interventions": [
        {
          "name": "SIT+WALK",
          "type": "BEHAVIORAL"
        },
        {
          "name": "EX",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "8 Years to 11 Years"
      },
      "enrollment_count": 188,
      "start_date": "2022-03-01",
      "completion_date": "2026-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04469790"
    },
    {
      "nct_id": "NCT00522340",
      "title": "Exercise After an ICD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Defibrillators, Implantable",
        "Heart Failure, Congestive"
      ],
      "interventions": [
        {
          "name": "Aerobic Exercise Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2007-11",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2014-11-10",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00522340"
    },
    {
      "nct_id": "NCT06915220",
      "title": "ADAPT Micro-Randomized Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "mobile health app",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2025-05-20",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06915220"
    },
    {
      "nct_id": "NCT01630408",
      "title": "The Effects of Active VItamin D on Left Atrial Volume Index",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Paricalcitol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-03",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2013-08-16",
      "last_synced_at": "2026-10-19T08:12:55.861Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01630408"
    }
  ]
}