{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=13",
    "query": {
      "intervention": "Retrospective study",
      "page": 13
    },
    "page_size": 10
  },
  "pagination": {
    "page": 13,
    "page_size": 10,
    "total_count": 1214,
    "total_pages": 122,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=14&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=12&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T07:03:29.463Z",
  "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": "NCT01776177",
      "title": "The REALITY Study - a Real-life Long-term Analysis of Xolair Therapy",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Allergic Asthma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Joseph D. Diaz, MD",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 240,
      "start_date": "2012-09",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2013-01-28",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01776177"
    },
    {
      "nct_id": "NCT07600801",
      "title": "LEGACY: Lung Cancer Screening in Individuals With a Lung Cancer Family History-Protocol B",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Family History of Lung Cancer"
      ],
      "interventions": [
        {
          "name": "CT scan",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Sybil",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2250,
      "start_date": "2026-06-17",
      "completion_date": "2035-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07600801"
    },
    {
      "nct_id": "NCT01452984",
      "title": "Experience of Non-Melanoma Skin Cancer (NMSC) Mohs Surgery Project",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Melanoma Skin Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 16,
      "start_date": "2011-07",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2015-03-19",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01452984"
    },
    {
      "nct_id": "NCT05864092",
      "title": "Virtual Reality as an Adjuvant Therapy for Sickle Cell Vaso-Occlusive Crisis in the Pediatric Emergency Department",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sickle Cell Crisis"
      ],
      "interventions": [
        {
          "name": "Virtual Reality Goggles",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Mississippi Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "6 Years to 21 Years"
      },
      "enrollment_count": 101,
      "start_date": "2023-08-01",
      "completion_date": "2024-05-31",
      "has_results": false,
      "last_update_posted_date": "2024-06-28",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Jackson, Mississippi",
      "locations": [
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05864092"
    },
    {
      "nct_id": "NCT04783441",
      "title": "Use of CGM in Kidney Transplant Recipients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Transplant; Complications",
        "Diabetes Mellitus, Type 2",
        "Insulin Dependent Diabetes"
      ],
      "interventions": [
        {
          "name": "Dexcom G6",
          "type": "DEVICE"
        },
        {
          "name": "Dexcom G6 blinded sensor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2021-06-29",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04783441"
    },
    {
      "nct_id": "NCT07005362",
      "title": "Fitbit and AI Chatbot in Sedentary Primary Care Patients With T2D",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Type 2 Diabetes",
        "Type 2 Diabetes Mellitus (T2DM)",
        "T2DM (Type 2 Diabetes Mellitus)",
        "T2D",
        "T2DM",
        "Remote Patient Monitoring",
        "Artificial Intelegence"
      ],
      "interventions": [
        {
          "name": "Fitbit and AI Chatbot",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Routine Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 35,
      "start_date": "2025-09-03",
      "completion_date": "2026-08-14",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07005362"
    },
    {
      "nct_id": "NCT01584479",
      "title": "Periodontal Disease Prevention Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Periodontitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "34 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "34 Years to 55 Years"
      },
      "enrollment_count": 5117,
      "start_date": "2010-12",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2015-07-09",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01584479"
    },
    {
      "nct_id": "NCT02420080",
      "title": "A Multicenter Study to Obtain Retrospective Data for Subjects Previously Diagnosed With Adenovirus Infection to Serve as Matched Historical Controls for Study CMX001-304",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adenovirus"
      ],
      "interventions": [
        {
          "name": "Brincidofovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Months",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "2 Months to 75 Years"
      },
      "enrollment_count": 100,
      "start_date": "2015-02",
      "completion_date": "2016-09",
      "has_results": false,
      "last_update_posted_date": "2017-01-09",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 22,
      "location_summary": "Los Angeles, California • Washinton, District of Columbia • Atlanta, Georgia + 17 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washinton",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02420080"
    },
    {
      "nct_id": "NCT00327405",
      "title": "Results of Ocular Compression and Suture Release in Trabeculectomy and Combined Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Open Angle Glaucoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "0 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2006-05-18",
      "last_synced_at": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00327405"
    },
    {
      "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": "2026-10-30T07:03:29.463Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05583422"
    }
  ]
}