{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Diseases+of+the+Circulatory+System&page=4",
    "query": {
      "condition": "Diseases of the Circulatory System",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 3302,
    "total_pages": 331,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Diseases+of+the+Circulatory+System&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Diseases+of+the+Circulatory+System&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-12T10:45:28.758Z",
  "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": "NCT04300569",
      "title": "A Study to Determine the Signs and Symptoms That Impact Daily Life of Participants With Irregular Sleep-Wake Rhythm Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Irregular Sleep Wake Rhythm Disorder"
      ],
      "interventions": [
        {
          "name": "Non-interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 37,
      "start_date": "2020-07-09",
      "completion_date": "2020-09-07",
      "has_results": false,
      "last_update_posted_date": "2020-10-27",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 6,
      "location_summary": "Costa Mesa, California • San Diego, California • Miami, Florida + 3 more",
      "locations": [
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04300569"
    },
    {
      "nct_id": "NCT05290675",
      "title": "Quantra QPlus Sample Type Comparison",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coagulation Defect; Bleeding"
      ],
      "interventions": [
        {
          "name": "Quantra QPlus System",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "HemoSonics LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2021-11-04",
      "completion_date": "2022-11-02",
      "has_results": false,
      "last_update_posted_date": "2023-05-01",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05290675"
    },
    {
      "nct_id": "NCT07402954",
      "title": "Stimulation of External Carotid Artery Circulation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Migraine"
      ],
      "interventions": [
        {
          "name": "Cadwell Cascade 32 PRO",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 12,
      "start_date": "2026-01-16",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Galveston, Texas",
      "locations": [
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07402954"
    },
    {
      "nct_id": "NCT02563522",
      "title": "Safety and Efficacy Study of Engensis (VM202) in the Treatment of Chronic Non-Healing Foot Ulcers",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Foot Ulcer, Diabetic"
      ],
      "interventions": [
        {
          "name": "Engensis (VM202)",
          "type": "GENETIC"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "DRUG"
      ],
      "sponsor": "Helixmith Co., Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 44,
      "start_date": "2017-06-27",
      "completion_date": "2019-09-24",
      "has_results": true,
      "last_update_posted_date": "2025-10-09",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 17 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Carmichael",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02563522"
    },
    {
      "nct_id": "NCT01266070",
      "title": "TKI 258 in Von Hippel-Lindau Syndrome (VHL)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Von Hippel-Lindau Syndrome"
      ],
      "interventions": [
        {
          "name": "Dovitinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2012-11",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-02-13",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01266070"
    },
    {
      "nct_id": "NCT00534937",
      "title": "Flexitouch Compression System for Venous Stasis Ulcer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Venous Stasis Ulcer"
      ],
      "interventions": [
        {
          "name": "Compression wrapping",
          "type": "PROCEDURE"
        },
        {
          "name": "Flexitouch compression pump",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "West Penn Allegheny Health System",
      "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": 89,
      "start_date": "2007-09",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2013-03-01",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 2,
      "location_summary": "Cleveland, Ohio • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00534937"
    },
    {
      "nct_id": "NCT05012410",
      "title": "WeCareAdvisor Study for Caregivers of People Living With Dementia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dementia",
        "Caregiver Burnout",
        "Caregiver Stress Syndrome",
        "Alzheimer Disease",
        "Frontotemporal Dementia",
        "Vascular Dementia",
        "Dementia With Lewy Bodies"
      ],
      "interventions": [
        {
          "name": "Immediate treatment group with High-Intensity Prompts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Immediate treatment group with Low-Intensity Prompts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Waitlist Control after three months with High-Intensity Prompts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Waitlist Control after three months with Low-Intensity Prompts",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Drexel University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 262,
      "start_date": "2021-12-13",
      "completion_date": "2024-07-19",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05012410"
    },
    {
      "nct_id": "NCT00883610",
      "title": "Effects Rapid Atrial Pacing Has on the Electrocardiogram (ECG) in Patients With Dual Chamber Pacemakers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prolonged QT Interval"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2009-04",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2014-12-11",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00883610"
    },
    {
      "nct_id": "NCT00070382",
      "title": "Darbepoetin Alfa Compared With Epoetin Alfa in Treating Anemia in Patients Receiving Chemotherapy for Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia",
        "Leukemia",
        "Lymphoma",
        "Lymphoproliferative Disorder",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Precancerous/Nonmalignant Condition",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "darbepoetin alfa",
          "type": "DRUG"
        },
        {
          "name": "epoetin alfa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jonsson Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2003-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2020-08-03",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00070382"
    },
    {
      "nct_id": "NCT07082270",
      "title": "Selvigaltin With Standard of Care Treatment for the Treatment of Relapsed/Refractory Multiple Myeloma",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent Multiple Myeloma",
        "Refractory Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Carfilzomib",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Daratumumab and Recombinant Human Hyaluronidase",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Selvigaltin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "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": "2026-04-01",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-10-12T10:45:28.758Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07082270"
    }
  ]
}