{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=History+of+prior+Surgery&page=2",
    "query": {
      "intervention": "History of prior Surgery",
      "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=History+of+prior+Surgery&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T01:49:07.763Z",
  "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": "NCT01663246",
      "title": "Cross-Sectional Study of Oral Health in Patients After Parotid-Sparing Radiation Therapy for Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Saliva Sample",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Michigan Rogel Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2006-04",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2014-08-15",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01663246"
    },
    {
      "nct_id": "NCT00017914",
      "title": "Adult and Juvenile Myositis",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dermatomyositis",
        "Polymyositis",
        "Inclusion Body Myositis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Environmental Health Sciences (NIEHS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "2 Years to 100 Years"
      },
      "enrollment_count": 1200,
      "start_date": "1995-06-07",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-09-24",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 4,
      "location_summary": "Atlanta, Georgia • Bethesda, Maryland • Research Triangle Park, North Carolina + 1 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Research Triangle Park",
          "state": "North Carolina"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00017914"
    },
    {
      "nct_id": "NCT03746535",
      "title": "Cardiovascular Disease Risk in Women With Endometriosis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "Elagolix",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2022-07-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-05-23",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03746535"
    },
    {
      "nct_id": "NCT04906863",
      "title": "Genetic Studies of Early-onset Dementia",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dementia, Early Onset",
        "Alzheimer Dementia (AD)",
        "Mild Cognitive Impairment (MCI)",
        "Memory Loss"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "GENETIC"
        },
        {
          "name": "Neurocognitive testing",
          "type": "OTHER"
        },
        {
          "name": "Medical questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "35 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2016-09-14",
      "completion_date": "2028-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04906863"
    },
    {
      "nct_id": "NCT01045499",
      "title": "LAGB as a Treatment for Morbid Obesity in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Morbid Obesity",
        "Obstructive Sleep Apnea Syndrome",
        "Metabolic Syndrome",
        "Insulin Resistance",
        "Nonalcoholic Fatty Liver Disease"
      ],
      "interventions": [
        {
          "name": "Laparoscopic adjustable gastric banding (Allergan Lap Band)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Jeffrey L Zitsman, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "13 Years to 19 Years"
      },
      "enrollment_count": 137,
      "start_date": "2005-09-13",
      "completion_date": "2017-04-30",
      "has_results": true,
      "last_update_posted_date": "2020-04-13",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01045499"
    },
    {
      "nct_id": "NCT04994431",
      "title": "Post-Operative Urinary Retention (POUR) in Thoracic Surgery Patients Receiving Prophylactic Tamsulosin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Thoracic Diseases",
        "Urinary Retention"
      ],
      "interventions": [
        {
          "name": "Tamsulosin Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "60 Years and older · Male only"
      },
      "enrollment_count": 109,
      "start_date": "2021-08-01",
      "completion_date": "2023-10-04",
      "has_results": true,
      "last_update_posted_date": "2024-11-07",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04994431"
    },
    {
      "nct_id": "NCT02489799",
      "title": "Utilizing Advance Care Planning Videos to Empower Perioperative Cancer Patients and Families",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Advance care planning video",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control video",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 92,
      "start_date": "2015-07",
      "completion_date": "2017-02",
      "has_results": true,
      "last_update_posted_date": "2017-08-29",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02489799"
    },
    {
      "nct_id": "NCT00260585",
      "title": "Esophageal Cancer Risk Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Esophageal Cancer",
        "Gastroesophageal Reflux Disease (GERD)",
        "Esophageal Diseases",
        "Hiatal Hernia",
        "Esophageal Achalasia"
      ],
      "interventions": [
        {
          "name": "Survey of client health, personal habits, family history",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood specimen for non-DNA and DNA parts",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy of esophageal/stomach tissue, lymph nodes, tumor",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsies, oral (saliva) and/or secretions, washings or mucosal scrapings/brushing from routine clinical surveillance endoscopies",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7000,
      "start_date": "1999-06",
      "completion_date": "2050-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00260585"
    },
    {
      "nct_id": "NCT02850874",
      "title": "HIPEC as Neoadjuvant Treatment for Resectable Pancreatic Adenocarcinoma",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pancreatic Neoplasms",
        "Pancreatic Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Hyperthermic intraperitoneal chemotherapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Open pancreaticoduodenectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": "2016-02",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2022-04-27",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02850874"
    },
    {
      "nct_id": "NCT03126448",
      "title": "BBOT: Bacterial Burden in Ortho Trauma Procedures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Orthopaedic Trauma Infections"
      ],
      "interventions": [
        {
          "name": "Highly Sensitive Assays",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 142,
      "start_date": "2015-12-21",
      "completion_date": "2018-08-15",
      "has_results": true,
      "last_update_posted_date": "2020-04-28",
      "last_synced_at": "2026-09-29T01:49:07.763Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03126448"
    }
  ]
}