{
  "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": 1213,
    "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": "2026-10-22T12:41:40.571Z",
  "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": "NCT05731739",
      "title": "IV Lidocaine Infusion for Neuropathic Pain",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Neuropathic Pain",
        "Complex Regional Pain Syndrome",
        "Chronic Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2016-04",
      "completion_date": "2023-01",
      "has_results": false,
      "last_update_posted_date": "2023-02-16",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05731739"
    },
    {
      "nct_id": "NCT05612867",
      "title": "Low Dose Vitamin C in Burns >20% Compared to Previous Studies With High Dose Vitamin C",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Burns",
        "Ascorbic Acid Deficiency",
        "Burn Shock",
        "Burn Degree Second",
        "Burn Degree Third",
        "Fluid and Electrolyte Imbalance"
      ],
      "interventions": [
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Arrowhead Regional Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 54,
      "start_date": "2020-12-12",
      "completion_date": "2021-01-08",
      "has_results": false,
      "last_update_posted_date": "2022-11-10",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Colton, California",
      "locations": [
        {
          "city": "Colton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05612867"
    },
    {
      "nct_id": "NCT05526157",
      "title": "An Observational Study, Called FINEGUST, to Learn More About How People With Chronic Kidney Disease and Type 2 Diabetes Are Treated and How the Introduction of New Treatment Options, Like Finerenone, Impacts Clinical Practice",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Kidney Disease",
        "Type 2 Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Finerenone (Kerendia, BAY 948862)",
          "type": "DRUG"
        },
        {
          "name": "Sodium-glucose cotransporter 2 inhibitors (SGLT2i)",
          "type": "DRUG"
        },
        {
          "name": "Glucagon-like peptide-1 receptor agonists (GLP 1 RA)",
          "type": "DRUG"
        },
        {
          "name": "Steroidal mineral corticoid receptor antagonists (sMRA)",
          "type": "DRUG"
        },
        {
          "name": "Non-steroidal mineral corticoid receptor antagonists (nsMRA)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50000,
      "start_date": "2022-10-01",
      "completion_date": "2024-09-05",
      "has_results": false,
      "last_update_posted_date": "2024-10-15",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Eden Prairie, Minnesota",
      "locations": [
        {
          "city": "Eden Prairie",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05526157"
    },
    {
      "nct_id": "NCT05127109",
      "title": "The PASTDUe Nutrition Ecosystem Project (PASTDUe)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Diet, Healthy",
        "Food",
        "Nutrition",
        "Intensive Care",
        "Abdominal Trauma",
        "Surgery",
        "Intra-abdominal Infection",
        "Sepsis",
        "Ischemic Bowel",
        "Vascular",
        "Penetrating Abdominal Trauma",
        "Enteral Feeding",
        "Oral"
      ],
      "interventions": [
        {
          "name": "Nutrition Ecosystem pathway",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Comparator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT",
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2022-04-25",
      "completion_date": "2027-02-20",
      "has_results": false,
      "last_update_posted_date": "2026-04-23",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05127109"
    },
    {
      "nct_id": "NCT05202301",
      "title": "A Study Using Available Data to Learn to What Extent Patients With Prostate Cancer Who Received Second Generation Androgen Receptor Inhibitors Took Their Medication as Prescribed or Stopped Taking Their Medication Completely",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Darolutamide (Nubeqa, BAY1841788)",
          "type": "DRUG"
        },
        {
          "name": "Enzalutamide",
          "type": "DRUG"
        },
        {
          "name": "Apalutamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 13779,
      "start_date": "2022-01-15",
      "completion_date": "2025-07-15",
      "has_results": false,
      "last_update_posted_date": "2025-08-11",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Whippany, New Jersey",
      "locations": [
        {
          "city": "Whippany",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05202301"
    },
    {
      "nct_id": "NCT07576036",
      "title": "International Multi-center Retrospective Study of Patients With Serum Sodium ≤110 mmol/L to Determine the Relationship Between Osmotic Demyelination Syndrome (ODS) and Rapid Correction of Hyponatremia",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hyponatremia Symptomatic",
        "Osmotic Demyelination Syndrome",
        "Cerebral Edema"
      ],
      "interventions": [
        {
          "name": "Hypertonic 3% saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rochester 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": 800,
      "start_date": "2023-11-01",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07576036"
    },
    {
      "nct_id": "NCT06566599",
      "title": "Preimplantation Genetic Testing for Aneuploidy (PGT-A) in Couples With Non-obstructive Azoospermia (NOA)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-obstructive Azoospermia",
        "Male Infertility"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Inception Fertility Research Institute, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 400,
      "start_date": "2024-08-19",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2026-04-16",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06566599"
    },
    {
      "nct_id": "NCT01305473",
      "title": "A Retrospective Study With Prospective Follow-Up of Laparoscopic Ventral Hernia Repair Utilizing the Bard Sepramesh IP Composite",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hernia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "C. R. Bard",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2010-08",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2012-08-01",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Centerville, Ohio",
      "locations": [
        {
          "city": "Centerville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01305473"
    },
    {
      "nct_id": "NCT03972605",
      "title": "Delphinus SoftVue™ ROC Reader Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer Detection",
        "Dense Breast Parenchyma",
        "Benign Breast Findings",
        "Normal Breast Screening",
        "Abnormal Breast Screening"
      ],
      "interventions": [
        {
          "name": "Reading of Automated Breast Ultrasound in conjunction with Screening Mammography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Delphinus Medical Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 32,
      "start_date": "2019-06-08",
      "completion_date": "2019-07-02",
      "has_results": false,
      "last_update_posted_date": "2020-01-28",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03972605"
    },
    {
      "nct_id": "NCT05583422",
      "title": "Evaluating a Pharmacogenetic Testing Panel in Patients Suspected to be at Increased Risk for Pharmacogenetics-related AEs While Receiving Fluoropyrimidine or Irinotecan Therapy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "DPYD or UGT1A1 variants",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "University of Michigan Rogel 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": 16,
      "start_date": "2023-08-18",
      "completion_date": "2024-06-17",
      "has_results": false,
      "last_update_posted_date": "2025-05-11",
      "last_synced_at": "2026-10-22T12:41:40.571Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05583422"
    }
  ]
}