{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cardiopulmonary+exercise+test&page=2",
    "query": {
      "intervention": "Cardiopulmonary exercise test",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cardiopulmonary+exercise+test&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T14:21:19.747Z",
  "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": "NCT03510689",
      "title": "Genetics and Heart Health After Cancer Therapy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Hereditary Breast/Ovarian Cancer (brca1, Brca2)",
        "Heart Diseases",
        "Drug-Induced Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "echocardiography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Cardiopulmonary Exercise Testing",
          "type": "OTHER"
        },
        {
          "name": "Blood Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 79,
      "start_date": "2017-12-05",
      "completion_date": "2022-05-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-16",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03510689"
    },
    {
      "nct_id": "NCT04543825",
      "title": "Usefulness of Cardiopulmonary Exercise Testing for Cardiovascular Risk Estimation and Frailty Assessment in Liver Transplant Candidates",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases+Liver Transplantation"
      ],
      "interventions": [
        {
          "name": "Cardiopulmonary exercise testing",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Andres Duarte-Rojo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "45 Years to 75 Years"
      },
      "enrollment_count": 54,
      "start_date": "2020-09-25",
      "completion_date": "2022-05-31",
      "has_results": false,
      "last_update_posted_date": "2024-04-03",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04543825"
    },
    {
      "nct_id": "NCT01636570",
      "title": "Vitamin D3 Supplementation for Heart Failure Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure",
        "Vitamin D Deficiency",
        "Cardiomyopathy",
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "Placebo Comparator: Sugar Pill",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D3 (cholecalciferol)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Heidi Moretti, MS, RD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 40,
      "start_date": "2012-08",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2017-04-26",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 2,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        },
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01636570"
    },
    {
      "nct_id": "NCT03911856",
      "title": "Unmasking Right Ventricular and Pulmonary Derangements With Exercise and Oxygen in Early Stage Cardiopulmonary Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiopulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Echocardiography",
          "type": "OTHER"
        },
        {
          "name": "Pulmonary Gas Exchange",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 7,
      "start_date": "2020-01-09",
      "completion_date": "2024-01-16",
      "has_results": false,
      "last_update_posted_date": "2024-03-12",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03911856"
    },
    {
      "nct_id": "NCT00094796",
      "title": "Rosiglitazone to Reverse Metabolic Defects in Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetes Mellitus, Type II",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Exercise cardiopulmonary metabolic testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Skeletal muscle biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Brachial artery reactivity testing",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2004-10-20",
      "completion_date": "2008-09-03",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland • Richmond, Virginia",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00094796"
    },
    {
      "nct_id": "NCT00112125",
      "title": "Evaluation of the Safety and Effectiveness of the OPTIMIZER System in Subjects With Heart Failure: FIX-HF-5",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure, Congestive"
      ],
      "interventions": [
        {
          "name": "OPTIMIZER System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Impulse Dynamics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 428,
      "start_date": "2005-02",
      "completion_date": "2019-03-19",
      "has_results": true,
      "last_update_posted_date": "2020-08-06",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "Orangeburg, New York",
      "locations": [
        {
          "city": "Orangeburg",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00112125"
    },
    {
      "nct_id": "NCT02615054",
      "title": "Assessment for Long-Term Cardiovascular Impairment Associated With Trastuzumab Cardiotoxicity in HER2-Positive Breast Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Trastuzumab Cardiotoxicity",
        "HER2-Positive Breast Cancer Survivors"
      ],
      "interventions": [
        {
          "name": "2D Echocardiogram",
          "type": "DEVICE"
        },
        {
          "name": "Cardiopulmonary exercise testing and post-CPET cardiac function",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 58,
      "start_date": "2015-11-18",
      "completion_date": "2024-03-05",
      "has_results": false,
      "last_update_posted_date": "2024-04-11",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02615054"
    },
    {
      "nct_id": "NCT01747785",
      "title": "Myocardial Performance at Rest and During Exercise in Heart Failure With Preserved Ejection Fraction",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Cardiac rehabilitation",
          "type": "OTHER"
        },
        {
          "name": "Myocardial deformation imaging",
          "type": "OTHER"
        },
        {
          "name": "Cardiopulmonary exercise test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2012-06",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2016-05-17",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "La Crosse, Wisconsin",
      "locations": [
        {
          "city": "La Crosse",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01747785"
    },
    {
      "nct_id": "NCT04670510",
      "title": "Fitness for Brain Optimization for Late-Life Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression in Old Age"
      ],
      "interventions": [
        {
          "name": "On-site AE",
          "type": "OTHER"
        },
        {
          "name": "At-home AE",
          "type": "OTHER"
        },
        {
          "name": "Social Engagement (SE)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2021-08-04",
      "completion_date": "2025-10-22",
      "has_results": false,
      "last_update_posted_date": "2025-11-28",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04670510"
    },
    {
      "nct_id": "NCT07641413",
      "title": "Lung and Heart Function Across Decades of Life in Health",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pollution Related Respiratory Disorder",
        "Pollution; Exposure",
        "Dyspnea",
        "Cardiopulmonary"
      ],
      "interventions": [
        {
          "name": "Healthy control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "24 Years",
        "maximum_age": "68 Years",
        "sex": "ALL",
        "summary": "24 Years to 68 Years"
      },
      "enrollment_count": 200,
      "start_date": "2024-08-01",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-09-24T14:21:19.747Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07641413"
    }
  ]
}