{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=5",
    "query": {
      "intervention": "Retrospective study",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 1214,
    "total_pages": 122,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-29T12:48:11.673Z",
  "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": "NCT07532369",
      "title": "Occlutech AFR Fontan Study",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Failure of Fontan Type Circulation",
        "Fenestration",
        "Univentricular Heart",
        "Congenital Anomaly"
      ],
      "interventions": [
        {
          "name": "Occlutech Atrial Flow Regulator Retrospective Data Collection",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Occlutech International AB",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 25,
      "start_date": "2026-05-01",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 7,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Diego, California + 4 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07532369"
    },
    {
      "nct_id": "NCT02255123",
      "title": "Retrospective Multicenter Study to Determine 4-Year Clinical Outcomes in Subjects Previously Enrolled in the CTOT-05 Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiac Transplantation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 178,
      "start_date": "2014-10",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 12,
      "location_summary": "San Francisco, California • Chicago, Illinois • Maywood, Illinois + 8 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Maywood",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02255123"
    },
    {
      "nct_id": "NCT05849961",
      "title": "Exactech Hip Systems Post-Market Clinical Follow-up (PMCF)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hip Arthroplasty, Total"
      ],
      "interventions": [
        {
          "name": "Exactech Hip Systems",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Exactech",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2946,
      "start_date": "2023-10-13",
      "completion_date": "2036-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-06-18",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05849961"
    },
    {
      "nct_id": "NCT06644742",
      "title": "PKP2-ACM Natural History Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiomyopathies",
        "Heart Diseases",
        "Cardiovascular Diseases",
        "Genetic Diseases"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Rocket Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2026-05-15",
      "completion_date": "2031-04",
      "has_results": false,
      "last_update_posted_date": "2026-10-14",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Durham, North Carolina",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06644742"
    },
    {
      "nct_id": "NCT04589962",
      "title": "SUrgical Versus PERcutaneous AXillary Artery International Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Surgical and the Percutaneous Approach to the Upper Extremity Access"
      ],
      "interventions": [
        {
          "name": "access axillary or brachial artery",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "IRCCS San Raffaele",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 700,
      "start_date": "2020-10-09",
      "completion_date": "2022-02-28",
      "has_results": false,
      "last_update_posted_date": "2022-11-14",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04589962"
    },
    {
      "nct_id": "NCT05477056",
      "title": "Quality Improvement PrecivityAD Clinician Survey (QUIP I)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Alzheimer Disease",
        "Mild Cognitive Impairment",
        "Dementia",
        "Cognitive Decline"
      ],
      "interventions": [
        {
          "name": "PrecivityAD blood test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "C2N Diagnostics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 366,
      "start_date": "2021-03-01",
      "completion_date": "2022-10-06",
      "has_results": false,
      "last_update_posted_date": "2025-02-20",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05477056"
    },
    {
      "nct_id": "NCT01726972",
      "title": "A Retrospective Review of FloSeal Use in Total Shoulder Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Total Shoulder Arthroplasty",
        "Glenohumeral Osteoarthritis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Western Orthopaedics Research and Education Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "21 Years to 90 Years"
      },
      "enrollment_count": 41,
      "start_date": "2012-11",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2020-10-23",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01726972"
    },
    {
      "nct_id": "NCT04725747",
      "title": "Exploring Sedation Types During Cataract Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vital Signs"
      ],
      "interventions": [
        {
          "name": "Midazolam/Ketamine HCl 3mg-50mg sublingual",
          "type": "DRUG"
        },
        {
          "name": "Intravenous Sedatives with or Without Analgesia",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vance Thompson Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "55 Years to 80 Years"
      },
      "enrollment_count": 1111,
      "start_date": "2021-01-25",
      "completion_date": "2021-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 2,
      "location_summary": "Sioux Falls, South Dakota",
      "locations": [
        {
          "city": "Sioux Falls",
          "state": "South Dakota"
        },
        {
          "city": "Sioux Falls",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04725747"
    },
    {
      "nct_id": "NCT04344899",
      "title": "Pediatric Oncology Recovery Trial After Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pelvic Cancer"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "1 Month to 18 Years"
      },
      "enrollment_count": 74,
      "start_date": "2019-07-23",
      "completion_date": "2025-03-11",
      "has_results": false,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 3,
      "location_summary": "Aurora, Colorado • Cincinnati, Ohio • Memphis, Tennessee",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04344899"
    },
    {
      "nct_id": "NCT04980833",
      "title": "Study Assessing Long-term Safety and Efficacy of Alpelisib in Patients With PIK3CA-Related Overgrowth Spectrum (PROS) Who Previously Participated in Study CBYL719F12002 (EPIK-P1)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "PIK3CA-related Overgrowth Spectrum (PROS)"
      ],
      "interventions": [
        {
          "name": "Alpelisib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "2 Years to 100 Years"
      },
      "enrollment_count": 41,
      "start_date": "2022-01-27",
      "completion_date": "2027-06-22",
      "has_results": false,
      "last_update_posted_date": "2026-10-14",
      "last_synced_at": "2026-10-29T12:48:11.673Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04980833"
    }
  ]
}