{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+analysis&page=2",
    "query": {
      "intervention": "Retrospective analysis",
      "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=Retrospective+analysis&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T12:05:50.649Z",
  "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": "NCT01377805",
      "title": "Head Circumference Growth in Children Who Develop Multiple Sclerosis Later in Life",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Genetic Disease Investigators",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2011-06",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2024-02-14",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "Colleyville, Texas",
      "locations": [
        {
          "city": "Colleyville",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01377805"
    },
    {
      "nct_id": "NCT06225206",
      "title": "Analysis of Donor-derived Cell Free DNA in Liver Transplant Patients",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Liver Transplant Failure"
      ],
      "interventions": [
        {
          "name": "donor-derived cell free DNA in liver",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Methodist Health System",
      "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": "2021-07-01",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-03-28",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06225206"
    },
    {
      "nct_id": "NCT06626243",
      "title": "Analysis of RATS, VATS and Open Lung Resections After Neoadjuvant Chemo-immunotherapy in Patients Performed in Five Referred Centers",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Small Cell Lung Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Scientific Institute 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": 140,
      "start_date": "2024-09-30",
      "completion_date": "2025-10-15",
      "has_results": false,
      "last_update_posted_date": "2024-11-29",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 3,
      "location_summary": "Miami, Florida • New York, New York • Morgantown, West Virginia",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06626243"
    },
    {
      "nct_id": "NCT01758263",
      "title": "Economic Impact of Switching From Metoprolol to Nebivolol for Hypertension Treatment",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Metoprolol",
          "type": "DRUG"
        },
        {
          "name": "Nebivolol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Forest Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3000,
      "start_date": "2012-10",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2013-01-01",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "Jersey City, New Jersey",
      "locations": [
        {
          "city": "Jersey City",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01758263"
    },
    {
      "nct_id": "NCT02729103",
      "title": "Treatment Patterns in Metastatic Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostatic Neoplasm"
      ],
      "interventions": [
        {
          "name": "Xofigo (Radium 223 dichloride,BAY88-8223)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "45 Years and older · Male only"
      },
      "enrollment_count": 565,
      "start_date": "2016-10-31",
      "completion_date": "2017-01-19",
      "has_results": false,
      "last_update_posted_date": "2018-01-25",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "Whippany, New Jersey",
      "locations": [
        {
          "city": "Whippany",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02729103"
    },
    {
      "nct_id": "NCT01612962",
      "title": "Diagnostic Tests to Help Determine Osteomyelitis",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteomyelitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 196,
      "start_date": "2011-05",
      "completion_date": "2015-02",
      "has_results": false,
      "last_update_posted_date": "2015-02-06",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01612962"
    },
    {
      "nct_id": "NCT02082353",
      "title": "Patients Treated for Chronic Granulomatous Disease (CGD) Since 1995",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Granulomatous Disease, Chronic"
      ],
      "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": 1480,
      "start_date": "2014-06",
      "completion_date": "2021-11",
      "has_results": false,
      "last_update_posted_date": "2021-09-02",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 39,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 34 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02082353"
    },
    {
      "nct_id": "NCT07150793",
      "title": "A Study of Real-world Treatment and Burden of Chronic Myeloid Leukemia Patients in Japan",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Myeloid Leukemia, Chronic"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 754,
      "start_date": "2022-07-05",
      "completion_date": "2023-02-08",
      "has_results": false,
      "last_update_posted_date": "2025-09-02",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07150793"
    },
    {
      "nct_id": "NCT02477189",
      "title": "Retrospective Analysis of the Safety and Effectiveness of Using the Silicone Block in Penile Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Penile Implant"
      ],
      "interventions": [
        {
          "name": "Silicone Block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "International Medical Devices, Inc.",
      "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": 400,
      "start_date": "2015-04",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2015-06-22",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 1,
      "location_summary": "Beverly Hills, California",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02477189"
    },
    {
      "nct_id": "NCT00483821",
      "title": "A Retrospective Analysis of Neck Dissection Following Complete Response to Chemoradiation in HNSCC",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "medical chart review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Vanderbilt-Ingram Cancer Center",
      "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": 165,
      "start_date": "2004-05",
      "completion_date": "2009-11",
      "has_results": false,
      "last_update_posted_date": "2012-09-10",
      "last_synced_at": "2026-09-05T12:05:50.649Z",
      "location_count": 3,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00483821"
    }
  ]
}