{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=9",
    "query": {
      "intervention": "Retrospective study",
      "page": 9
    },
    "page_size": 10
  },
  "pagination": {
    "page": 9,
    "page_size": 10,
    "total_count": 1214,
    "total_pages": 122,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=10&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Retrospective+study&page=8&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-29T21:24:41.326Z",
  "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": "NCT03936335",
      "title": "An Observational Retrospective Cohort Study Being Conducted in Women With Atopic Dermatitis (AD)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adverse Pregnancy Outcomes",
        "Atopic Dermatitis"
      ],
      "interventions": [
        {
          "name": "dupilumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 49 Years · Female only"
      },
      "enrollment_count": 12343,
      "start_date": "2019-09-30",
      "completion_date": "2026-04-13",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03936335"
    },
    {
      "nct_id": "NCT04421768",
      "title": "Effects of Systematic Cervical Exam Training on Labor and Delivery Care",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Delivery Problem",
        "Cervix; Pregnancy",
        "Pregnancy Related"
      ],
      "interventions": [
        {
          "name": "cervical exam training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1125,
      "start_date": "2020-07-23",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04421768"
    },
    {
      "nct_id": "NCT03473249",
      "title": "Effectiveness of Contrast-Enhanced Ultrasound",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Abdominal Injuries",
        "Physical Abuse",
        "Accidental Fall",
        "Motor Vehicle Injury"
      ],
      "interventions": [
        {
          "name": "Contrast-Enhanced Ultrasound using Lumason",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "7 Years",
        "sex": "ALL",
        "summary": "0 Years to 7 Years"
      },
      "enrollment_count": 120,
      "start_date": "2018-05-09",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-12-24",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03473249"
    },
    {
      "nct_id": "NCT06466447",
      "title": "Child and Adolescent OCD Outcomes From Exposure and Response Prevention Video Teletherapy Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obsessive-Compulsive Disorder"
      ],
      "interventions": [
        {
          "name": "Exposure and response prevention therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "NOCD",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "4 Years to 17 Years"
      },
      "enrollment_count": 2173,
      "start_date": "2020-07-23",
      "completion_date": "2024-05-03",
      "has_results": false,
      "last_update_posted_date": "2024-06-26",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06466447"
    },
    {
      "nct_id": "NCT04888078",
      "title": "Bassini Inguinal Hernia Repair: Obsolete Or Still A Viable Surgical Option?",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Inguinal Hernia",
        "Surgery--Complications",
        "Surgical Complication"
      ],
      "interventions": [
        {
          "name": "Bassini hernia repair",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Hunter Holmes Mcguire Veteran Affairs Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 203,
      "start_date": "2006-01-01",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-05-17",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04888078"
    },
    {
      "nct_id": "NCT03768817",
      "title": "Clinical Outcome of Triheptanoin Treatment in Patients With Long-chain Fatty Acid Oxidation Disorders (LC-FAOD) Treated Under Expanded Access Program",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Long-chain Fatty Acid Oxidation Disorders (LC-FAOD)"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ultragenyx Pharmaceutical Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 20,
      "start_date": "2019-01-30",
      "completion_date": "2020-06-08",
      "has_results": false,
      "last_update_posted_date": "2020-08-28",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 15,
      "location_summary": "Los Angeles, California • Orange, California • Palo Alto, California + 11 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03768817"
    },
    {
      "nct_id": "NCT01062958",
      "title": "A Retrospective Analysis of Neevo®/Neevo®DHA Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anemia in Pregnancy",
        "Preeclampsia"
      ],
      "interventions": [
        {
          "name": "Neevo® (a medical food)",
          "type": "OTHER"
        },
        {
          "name": "Prenatal vitamins (≤1mg folic acid, 27 - 35mg iron, and ≤12mcg vitamin B12)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Pamlab, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 39 Years · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2009-12",
      "completion_date": "2010-02",
      "has_results": false,
      "last_update_posted_date": "2013-04-16",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 3,
      "location_summary": "Sheffield, Alabama • Flowood, Mississippi • Gainesville, Texas",
      "locations": [
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Flowood",
          "state": "Mississippi"
        },
        {
          "city": "Gainesville",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01062958"
    },
    {
      "nct_id": "NCT05775744",
      "title": "Management of Postpartum Preeclampsia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postpartum Preeclampsia"
      ],
      "interventions": [
        {
          "name": "Tight postpartum blood pressure control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 392,
      "start_date": "2023-03-28",
      "completion_date": "2024-03-26",
      "has_results": false,
      "last_update_posted_date": "2024-04-02",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 2,
      "location_summary": "Livingston, New Jersey • New Brunswick, New Jersey",
      "locations": [
        {
          "city": "Livingston",
          "state": "New Jersey"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05775744"
    },
    {
      "nct_id": "NCT03907709",
      "title": "Effects of In-Home Addiction Treatment for First Responders",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Substance Use Disorders"
      ],
      "interventions": [
        {
          "name": "In-Home Addiction Treatment Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "In-Home Addiction Treatment Institute, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 15,
      "start_date": "2019-04-08",
      "completion_date": "2020-07-28",
      "has_results": false,
      "last_update_posted_date": "2019-08-07",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "North Haven, Connecticut",
      "locations": [
        {
          "city": "North Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03907709"
    },
    {
      "nct_id": "NCT04494048",
      "title": "Endoscopic Bariatric Therapies (EBTs): A Retrospective and Prospective Multicenter Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Weight Loss",
        "Gastro Esophageal Reflux",
        "Bariatric Surgery Candidate"
      ],
      "interventions": [
        {
          "name": "Endoscopic Bariatric Therapies",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 9999,
      "start_date": "2016-04-05",
      "completion_date": "2035-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-23",
      "last_synced_at": "2026-10-29T21:24:41.326Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04494048"
    }
  ]
}