{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Anti-factor+Xa",
    "query": {
      "condition": "Anti-factor Xa"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T08:52:10.939Z",
  "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": "NCT00541320",
      "title": "Phase IIa Venous Thromboembolism (VTE) Prevention Study In Total Knee Replacement (TKR)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Venous Thromboembolism"
      ],
      "interventions": [
        {
          "name": "GW813893",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2007-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-04-04",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Yuba City, California + 4 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Yuba City",
          "state": "California"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00541320"
    },
    {
      "nct_id": "NCT03296033",
      "title": "Residual Anti-Xa Activity After Last Treatment Dose of Enoxaparin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Anticoagulants and Bleeding Disorders",
        "Surgery",
        "Regional Anesthesia Morbidity"
      ],
      "interventions": [
        {
          "name": "Enoxaparin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 122,
      "start_date": "2017-10-24",
      "completion_date": "2022-01-14",
      "has_results": true,
      "last_update_posted_date": "2023-10-05",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03296033"
    },
    {
      "nct_id": "NCT04640181",
      "title": "Factor Xa Inhibitor Versus Standard of Care Heparin in Hospitalized Patients With COVID-19 (XACT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Enoxaparin",
          "type": "DRUG"
        },
        {
          "name": "Rivaroxaban",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "St. David's HealthCare",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 150,
      "start_date": "2020-12-01",
      "completion_date": "2021-06-28",
      "has_results": false,
      "last_update_posted_date": "2021-06-30",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04640181"
    },
    {
      "nct_id": "NCT03143569",
      "title": "Ventricular Assist Device Anti-Factor Xa (VAD ANTIX) Monitoring Study: a Prospective Randomized Feasibility Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Left Sided Heart Failure",
        "Left Ventricular Assist Device",
        "Anticoagulant Therapy",
        "Gastro Intestinal Bleeding",
        "Thrombosis, LVAD",
        "Anti-factor Xa",
        "aPTT",
        "Heparin"
      ],
      "interventions": [
        {
          "name": "aPTT guided heparin management",
          "type": "DEVICE"
        },
        {
          "name": "Anti-factor Xa guided heparin management",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2017-05-20",
      "completion_date": "2018-07-12",
      "has_results": true,
      "last_update_posted_date": "2020-02-25",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03143569"
    },
    {
      "nct_id": "NCT02704052",
      "title": "Real-time Anti-Factor Xa Measurements in Surgical Patients to Examine Enoxaparin Metabolism and Optimize Enoxaparin Dose",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Deep Venous Thrombosis",
        "Pulmonary Embolus",
        "Venous Thromboembolism"
      ],
      "interventions": [
        {
          "name": "Real time enoxaparin dose adjustment",
          "type": "DRUG"
        },
        {
          "name": "Standard enoxaparin dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 116,
      "start_date": "2016-03",
      "completion_date": "2018-10",
      "has_results": false,
      "last_update_posted_date": "2019-05-24",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02704052"
    },
    {
      "nct_id": "NCT02687204",
      "title": "Twice Daily Enoxaparin Prophylaxis in Reconstructive Surgery Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Venous Thromboembolism",
        "Deep Venous Thrombosis",
        "Pulmonary Embolus"
      ],
      "interventions": [
        {
          "name": "Twice daily enoxaparin prophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Real time dose adjustment",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 118,
      "start_date": "2016-03",
      "completion_date": "2017-12-06",
      "has_results": false,
      "last_update_posted_date": "2018-10-19",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02687204"
    },
    {
      "nct_id": "NCT00319176",
      "title": "Evaluation of Pre-dose and Post-dose Anti-factor Xa Levels With Enoxaparin Use During Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, Irvine",
      "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": 15,
      "start_date": "2004-04",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2013-02-08",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "Long Beach, California",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00319176"
    },
    {
      "nct_id": "NCT01954238",
      "title": "A Study to Access Safety, Tolerability, Pharmacokinetics(PK) and Pharmacodynamics(PD) of Orally Administered GCC-4401C in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "GCC-4401C",
          "type": "DRUG"
        },
        {
          "name": "Rivaroxaban",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Green Cross Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "MALE",
        "summary": "18 Years to 45 Years · Male only"
      },
      "enrollment_count": 46,
      "start_date": "2013-08",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2014-12-23",
      "last_synced_at": "2026-07-22T08:52:10.939Z",
      "location_count": 1,
      "location_summary": "Early Phase Clinical Unit _Los Angeles, California",
      "locations": [
        {
          "city": "Early Phase Clinical Unit _Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01954238"
    }
  ]
}