{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pacing+Algorithms",
    "query": {
      "intervention": "Pacing Algorithms"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 18,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pacing+Algorithms&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T11:02:20.258Z",
  "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": "NCT03752151",
      "title": "Micra Atrial TRacking Using A Ventricular AccELerometer 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrioventricular Conduction Block"
      ],
      "interventions": [
        {
          "name": "MARVEL 2 Algorithm Monitor Mode then Adaptive Mode",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 77,
      "start_date": "2019-01-22",
      "completion_date": "2019-08-07",
      "has_results": true,
      "last_update_posted_date": "2020-06-04",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 5,
      "location_summary": "Jacksonville, Florida • Miami, Florida • Manhasset, New York + 2 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Manhasset",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03752151"
    },
    {
      "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": "2026-09-02T11:02:20.258Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04721314"
    },
    {
      "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": "2026-09-02T11:02:20.258Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03361189"
    },
    {
      "nct_id": "NCT00187239",
      "title": "Reduce Ventricular Pacing in Dual Chamber Implantable Cardioverter Defibrillators Using AutoIntrinsic Conduction Search Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Arrhythmia"
      ],
      "interventions": [
        {
          "name": "Autointrinsic Conduction Search Algorithm",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 157,
      "start_date": "2005-07",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2019-02-04",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 1,
      "location_summary": "Pomona, New Jersey",
      "locations": [
        {
          "city": "Pomona",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00187239"
    },
    {
      "nct_id": "NCT00289289",
      "title": "Reducing Episodes by Septal Pacing Efficacy Confirmation Trial (RESPECT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Tachycardia, Supraventricular",
        "Arrhythmia",
        "Bradycardia"
      ],
      "interventions": [
        {
          "name": "Intervention Pacing Features",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 400,
      "start_date": "2004-02",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2012-08-08",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 34,
      "location_summary": "Little Rock, Arkansas • Rancho Mirage, California • San Diego, California + 31 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Rancho Mirage",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Yuba City",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00289289"
    },
    {
      "nct_id": "NCT02205359",
      "title": "AdaptResponse Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Left Bundle Branch Block"
      ],
      "interventions": [
        {
          "name": "aCRT ON",
          "type": "DEVICE"
        },
        {
          "name": "aCRT OFF",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3797,
      "start_date": "2014-08",
      "completion_date": "2022-11-02",
      "has_results": true,
      "last_update_posted_date": "2023-11-29",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 90,
      "location_summary": "Mesa, Arizona • Phoenix, Arizona • Little Rock, Arkansas + 76 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02205359"
    },
    {
      "nct_id": "NCT00787800",
      "title": "The Use of Dual Chamber ICD With Special Programmed Features to Lower the Risk of Inappropriate Shock",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ventricular Tachycardia",
        "Ventricular Fibrillation",
        "Atrial Fibrillation",
        "Supraventricular Tachycardia"
      ],
      "interventions": [
        {
          "name": "Dual Chamber ICD",
          "type": "DEVICE"
        },
        {
          "name": "Single Chamber ICD",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 100,
      "start_date": "2008-11",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2014-07-24",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 2,
      "location_summary": "Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00787800"
    },
    {
      "nct_id": "NCT02803775",
      "title": "Paced And Sensed Electrical Delay in CRT Therapy (PASED CRT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "CRT Algorithm",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Deborah Heart and Lung Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 92,
      "start_date": "2017-02-02",
      "completion_date": "2019-02-04",
      "has_results": false,
      "last_update_posted_date": "2019-09-26",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 1,
      "location_summary": "Browns Mills, New Jersey",
      "locations": [
        {
          "city": "Browns Mills",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02803775"
    },
    {
      "nct_id": "NCT00267137",
      "title": "Study for Atrial Fibrillation Reduction (SAFARI)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation, Bradycardia"
      ],
      "interventions": [
        {
          "name": "Pacing Algorithms",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Ablation Solutions",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 540,
      "start_date": "2002-09",
      "completion_date": "2006-07-21",
      "has_results": false,
      "last_update_posted_date": "2025-02-13",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 34,
      "location_summary": "Yuma, Arizona • Fayetteville, Arkansas • Fort Smith, Arkansas + 31 more",
      "locations": [
        {
          "city": "Yuma",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00267137"
    },
    {
      "nct_id": "NCT02222818",
      "title": "Cardiac Resynchronization Therapy Efficacy Enhancements",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Conducted AF Response (CAFR)",
          "type": "DEVICE"
        },
        {
          "name": "Conducted AF Response Plus (CAFRPlus)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 71,
      "start_date": "2014-10",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2017-01-06",
      "last_synced_at": "2026-09-02T11:02:20.258Z",
      "location_count": 10,
      "location_summary": "Boca Raton, Florida • West Des Moines, Iowa • Minneapolis, Minnesota + 7 more",
      "locations": [
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "West Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Saint Cloud",
          "state": "Minnesota"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02222818"
    }
  ]
}