{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Block+performed&page=4",
    "query": {
      "intervention": "Block performed",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 553,
    "total_pages": 56,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Block+performed&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Block+performed&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T01:13:31.788Z",
  "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": "NCT04906018",
      "title": "A Study to Collect Imaging Data for the Validation of the Intelligent Ultrasound's ScanNav Anatomy Peripheral Nerve Block (PNB) - US v1.0",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ultrasound Imaging of Anatomical Structures"
      ],
      "interventions": [
        {
          "name": "Ultrasound scans",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "IntelligentUltrasound Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 40,
      "start_date": "2021-05-16",
      "completion_date": "2021-11-30",
      "has_results": false,
      "last_update_posted_date": "2022-04-01",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04906018"
    },
    {
      "nct_id": "NCT05357690",
      "title": "A Study of Stellate Ganglion Block for Prevention of Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Stellate ganglion block",
          "type": "PROCEDURE"
        },
        {
          "name": "Bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2023-04-19",
      "completion_date": "2026-06-08",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05357690"
    },
    {
      "nct_id": "NCT02962050",
      "title": "Delineating Swallowing Impairment and Decline in ALS",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Amyotrophic Lateral Sclerosis"
      ],
      "interventions": [
        {
          "name": "Videofluoroscopic Swallowing Study (VFSS)",
          "type": "PROCEDURE"
        },
        {
          "name": "Voluntary Peak Cough Flow Testing",
          "type": "DEVICE"
        },
        {
          "name": "Iowa Oral Performance Instrument",
          "type": "DEVICE"
        },
        {
          "name": "Capsaicin Challenge",
          "type": "DRUG"
        },
        {
          "name": "Pulmonary Function Testing",
          "type": "DEVICE"
        },
        {
          "name": "Eating Assessment Tool 10",
          "type": "OTHER"
        },
        {
          "name": "The Center for Neurologic Study Bulbar Function Scale",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 109,
      "start_date": "2017-05-31",
      "completion_date": "2023-02-16",
      "has_results": false,
      "last_update_posted_date": "2023-02-23",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 2,
      "location_summary": "Gainesville, Florida • Tampa, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02962050"
    },
    {
      "nct_id": "NCT03951649",
      "title": "Acute Headache Treatment in Pregnancy: Occipital Nerve Block vs PO Acetaminophen With Caffeine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Headache",
        "Pregnancy Related",
        "Occipital Nerve Block"
      ],
      "interventions": [
        {
          "name": "Occipital Nerve Block",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "16 Years to 60 Years · Female only"
      },
      "enrollment_count": 62,
      "start_date": "2020-02-10",
      "completion_date": "2022-12-31",
      "has_results": true,
      "last_update_posted_date": "2023-12-20",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03951649"
    },
    {
      "nct_id": "NCT05640115",
      "title": "Obstruction of Malignancy: Percutaneous Renal vs Endoscopic Stent",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cancer",
        "Urinary Obstruction",
        "Malignancy",
        "Urinary Dysfunction",
        "Ureter Obstruction",
        "Ureter Injury"
      ],
      "interventions": [
        {
          "name": "Ureteral Stent",
          "type": "DEVICE"
        },
        {
          "name": "Percutaneous Nephrostomy Tube Placement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Chicago",
      "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": "2023-09-22",
      "completion_date": "2024-08-21",
      "has_results": false,
      "last_update_posted_date": "2024-12-19",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05640115"
    },
    {
      "nct_id": "NCT03365908",
      "title": "Pain Management of ACL Reconstruction",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anterior Cruciate Ligament Rupture"
      ],
      "interventions": [
        {
          "name": "Adductor Canal Nerve Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Ropivacaine injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 60,
      "start_date": "2017-10-09",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03365908"
    },
    {
      "nct_id": "NCT07367308",
      "title": "External vs Combined Focus Effects on Landing in Female Athletes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Valgus Deformity, Not Elsewhere Classified, Knee",
        "Injury, Knee"
      ],
      "interventions": [
        {
          "name": "Single-Leg Drop Vertical Jump",
          "type": "OTHER"
        },
        {
          "name": "Combined Focus of Attention Instruction",
          "type": "OTHER"
        },
        {
          "name": "External Focus of Attention Instruction",
          "type": "OTHER"
        },
        {
          "name": "No instruction",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Bahçeşehir University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 30 Years · Female only"
      },
      "enrollment_count": 18,
      "start_date": "2026-02-17",
      "completion_date": "2026-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Long Beach, California",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07367308"
    },
    {
      "nct_id": "NCT02056288",
      "title": "A Comparison of UGSB and GA to IV Narcotics and GA for Post-Op Pain in Children With Supracondylar Fractures.",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Supracondylar Fractures"
      ],
      "interventions": [
        {
          "name": "Fentanyl",
          "type": "DRUG"
        },
        {
          "name": "Ropivacaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "2 Years to 17 Years"
      },
      "enrollment_count": 78,
      "start_date": "2011-03-10",
      "completion_date": "2019-03-01",
      "has_results": true,
      "last_update_posted_date": "2021-05-21",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02056288"
    },
    {
      "nct_id": "NCT03022279",
      "title": "Nerve Blocks vs Local Injections for Post-op Pain Prevention in Laparoscopic Cholecystectomy in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Laparoscopic Cholecystectomy"
      ],
      "interventions": [
        {
          "name": "TAP Blocks",
          "type": "PROCEDURE"
        },
        {
          "name": "local wound infiltration",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Brian Wallace Gray",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "8 Years to 17 Years"
      },
      "enrollment_count": 87,
      "start_date": "2017-01-06",
      "completion_date": "2022-09",
      "has_results": false,
      "last_update_posted_date": "2023-03-03",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03022279"
    },
    {
      "nct_id": "NCT01924988",
      "title": "Prostate Embolization for Benign Prostatic Hyperplasia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Benign Prostatic Hyperplasia"
      ],
      "interventions": [
        {
          "name": "Prostatic Embolization with Embosphere Micropsheres",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "James B. Spies, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "MALE",
        "summary": "50 Years to 90 Years · Male only"
      },
      "enrollment_count": 15,
      "start_date": "2013-08",
      "completion_date": "2017-04",
      "has_results": true,
      "last_update_posted_date": "2019-12-10",
      "last_synced_at": "2026-10-30T01:13:31.788Z",
      "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/NCT01924988"
    }
  ]
}