{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Longitudinal+Studies&page=20",
    "query": {
      "condition": "Longitudinal Studies",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 8678,
    "total_pages": 868,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Longitudinal+Studies&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Longitudinal+Studies&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-02T05:09:02.227Z",
  "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": "NCT02407561",
      "title": "Prospective Validation Study for the Proprietary Rectal and Anal Cancer Protein Expression Assays",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rectal Adenocarcinoma",
        "Anal Adenocarcinoma",
        "Anal Squamous Cell Carcinoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Castle Biosciences Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3,
      "start_date": "2015-02",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2018-01-25",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02407561"
    },
    {
      "nct_id": "NCT00599261",
      "title": "MAKE IT CLEAN, Impact of Pocket Revision on the Rate of Infection and Other Complications in Patients Requiring Pocket Manipulation for Generator Replacement and/or Lead Replacement or Revision: A Prospective Randomized Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Infection"
      ],
      "interventions": [
        {
          "name": "ICD/pacemaker pocket revision",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Dhanunjaya Lakkireddy, MD, FACC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 265,
      "start_date": "2008-01",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2013-01-10",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00599261"
    },
    {
      "nct_id": "NCT00885742",
      "title": "A Study of Factor XIII Concentrate in Subjects With Congenital Factor XIII Deficiency",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Factor XIII Deficiency"
      ],
      "interventions": [
        {
          "name": "FXIII Concentrate (Human)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "CSL Behring",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 41,
      "start_date": "2009-08",
      "completion_date": "2011-04",
      "has_results": true,
      "last_update_posted_date": "2012-07-16",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 22,
      "location_summary": "Dothan, Alabama • Oakland, California • Orange, California + 19 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stockton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00885742"
    },
    {
      "nct_id": "NCT05172570",
      "title": "Gabapentin Dosages for Postoperative Analgesia Following Open Thoracotomy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Thoracotomy",
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Gabapentin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-04-06",
      "completion_date": "2022-03-02",
      "has_results": true,
      "last_update_posted_date": "2024-03-21",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05172570"
    },
    {
      "nct_id": "NCT03066869",
      "title": "Efficacy and Safety of H.P. ACTHAR GEL in Adults With Retinal Vasculitis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Uveitis, Posterior",
        "Vasculitis Retinal"
      ],
      "interventions": [
        {
          "name": "H.P. ACTHAR GEL",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ocular Immunology and Uveitis Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2017-03-22",
      "completion_date": "2020-08",
      "has_results": false,
      "last_update_posted_date": "2019-09-12",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Waltham, Massachusetts",
      "locations": [
        {
          "city": "Waltham",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03066869"
    },
    {
      "nct_id": "NCT02780869",
      "title": "HEMOBLAST Pivotal Clinical Investigation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hemostasis"
      ],
      "interventions": [
        {
          "name": "HEMOBLAST Bellows",
          "type": "DEVICE"
        },
        {
          "name": "Absorbable gelatin sponge, USP with thrombin",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Biom'Up France SAS",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 258,
      "start_date": "2016-07-18",
      "completion_date": "2017-03-27",
      "has_results": true,
      "last_update_posted_date": "2018-12-27",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 17,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Pasadena, California + 12 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02780869"
    },
    {
      "nct_id": "NCT00834483",
      "title": "Use of Knotless Suture for Closure of Total Hip and Knee Arthroplasties",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Hip Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Knotless suture for wound closure",
          "type": "DEVICE"
        },
        {
          "name": "Layered traditional wound closure (monocryl)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2009-02",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2014-09-11",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00834483"
    },
    {
      "nct_id": "NCT01324037",
      "title": "Diagnostic Algorithm in Suspected Upper Extremity Deep Vein Thrombosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Suspected Upper Extremity Deep Vein Thrombosis"
      ],
      "interventions": [
        {
          "name": "diagnostic algorithm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Medical Center Groningen",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 406,
      "start_date": "2010-03",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2014-12-03",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "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/NCT01324037"
    },
    {
      "nct_id": "NCT06475677",
      "title": "OrthoCor Advanced Trial for Knee Osteoarthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee",
        "Osteo Arthritis Knee"
      ],
      "interventions": [
        {
          "name": "OrthoCor Advanced System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Caerus Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 23,
      "start_date": "2024-06-18",
      "completion_date": "2025-10-06",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Gulf Breeze, Florida",
      "locations": [
        {
          "city": "Gulf Breeze",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06475677"
    },
    {
      "nct_id": "NCT04532177",
      "title": "Stereotactic Body Radiation Therapy (SBRT) for Invasive Breast Cancer Patients Not Undergoing Definitive Surgery",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Stereotactic Body Radiation Therapy (SBRT)",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Stony Brook University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2020-08-19",
      "completion_date": "2027-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-11-02T05:09:02.227Z",
      "location_count": 1,
      "location_summary": "Stony Brook, New York",
      "locations": [
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04532177"
    }
  ]
}