{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Regional+Block&page=4",
    "query": {
      "condition": "Regional Block",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 257,
    "total_pages": 26,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Regional+Block&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Regional+Block&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T03:14:25.865Z",
  "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": "NCT01996553",
      "title": "The Prevalence of Radial Artery Occlusion in Diagnostic Cardiac Catheterization and Percutaneous Intervention",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronary Angiography",
        "Radial Artery Occlusion"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Jesse Brown VA Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 172,
      "start_date": "2013-04",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2017-08-09",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01996553"
    },
    {
      "nct_id": "NCT06299137",
      "title": "Ultrasound Guided Serratus Anterior Plane Block in ED Patients With Rib Fractures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Rib Fractures",
        "Pain Acute",
        "Regional Anesthesia",
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "Serratus Anterior Plane Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Ropivacaine injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Rhode Island Hospital",
      "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": "2024-07-01",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-18",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06299137"
    },
    {
      "nct_id": "NCT04919317",
      "title": "Combination Dexamethasone and Bupivacaine Pain Control in Reduction Mammaplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Mammaplasty"
      ],
      "interventions": [
        {
          "name": "Dexamethasone 4mg",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 56,
      "start_date": "2017-09-29",
      "completion_date": "2020-11-25",
      "has_results": true,
      "last_update_posted_date": "2023-10-11",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04919317"
    },
    {
      "nct_id": "NCT01129635",
      "title": "Optimal Coronary Sinus Lead Implantation Using Intracardiac Impedography and Magnetic Resonance Imaging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure, Systolic",
        "Left Bundle Branch Block"
      ],
      "interventions": [
        {
          "name": "Cardiac Resynchronization Therapy (CRT) implantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 38,
      "start_date": "2010-06",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-01-21",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01129635"
    },
    {
      "nct_id": "NCT04918693",
      "title": "A Study to Evaluate the Performance and Potential Benefits of an Assistive Artificial Intelligence Device ScanNav Anatomy Peripheral Nerve Block - US V1.0 for Ultrasound-guided Regional Anesthesia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ultrasound Imaging of Anatomical Structures"
      ],
      "interventions": [
        {
          "name": "Ultrasound scanning",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "IntelligentUltrasound Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 34,
      "start_date": "2021-05-16",
      "completion_date": "2021-11-30",
      "has_results": false,
      "last_update_posted_date": "2022-04-01",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04918693"
    },
    {
      "nct_id": "NCT06313632",
      "title": "Erector Spinae Plane Block With Bupivacaine for Medical Thoracoscopy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pleural Disease",
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Bupivacaine injection",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Monitored Anesthesia Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2024-03-28",
      "completion_date": "2025-03-20",
      "has_results": false,
      "last_update_posted_date": "2025-05-01",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06313632"
    },
    {
      "nct_id": "NCT03894098",
      "title": "High Ankle Block Versus Regional Block for Acute Pain Control After Ankle Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle Surgery"
      ],
      "interventions": [
        {
          "name": "Nerve block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-03-26",
      "completion_date": "2022-05-24",
      "has_results": false,
      "last_update_posted_date": "2022-05-27",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03894098"
    },
    {
      "nct_id": "NCT03326999",
      "title": "Does Adding an Additional Numbing Medication Injection in the Thigh Help With Pain Control After Knee Replacement Surgery?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Knee Rheumatism"
      ],
      "interventions": [
        {
          "name": "Obturator nerve regional block",
          "type": "DRUG"
        },
        {
          "name": "Adductor canal regional block",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 60,
      "start_date": "2017-12-11",
      "completion_date": "2018-12-18",
      "has_results": true,
      "last_update_posted_date": "2020-09-30",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03326999"
    },
    {
      "nct_id": "NCT01207401",
      "title": "Paracervical Block Before Intrauterine Device (IUD) Insertion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain Control for Intrauterine Device Insertions"
      ],
      "interventions": [
        {
          "name": "Lidocaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 50,
      "start_date": "2010-07",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2013-06-10",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01207401"
    },
    {
      "nct_id": "NCT02112006",
      "title": "Comparing Two Injection Sites of Local Anesthetic for Hand Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hand Injury",
        "Wrist Injury",
        "Finger Injury"
      ],
      "interventions": [
        {
          "name": "0.5% bupivacaine injected in the forearm",
          "type": "PROCEDURE"
        },
        {
          "name": "20-30ml of 0.5% bupivacaine.",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Jose Soberon, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2014-04",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2016-03-22",
      "last_synced_at": "2026-10-22T03:14:25.865Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02112006"
    }
  ]
}