{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Block+performed&page=12",
    "query": {
      "intervention": "Block performed",
      "page": 12
    },
    "page_size": 10
  },
  "pagination": {
    "page": 12,
    "page_size": 10,
    "total_count": 553,
    "total_pages": 56,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Block+performed&page=13&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Block+performed&page=11&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-01T16:44:18.385Z",
  "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": "NCT03084536",
      "title": "PECS Block vs. Multimodal Analgesia for Prevention of Persistent Postoperative Pain in Breast Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Breast Cancer Female",
        "Cancer of Breast"
      ],
      "interventions": [
        {
          "name": "Bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Gabapentin",
          "type": "DRUG"
        },
        {
          "name": "Celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        },
        {
          "name": "Fentanyl",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 134,
      "start_date": "2017-06-07",
      "completion_date": "2021-02-25",
      "has_results": true,
      "last_update_posted_date": "2024-12-24",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03084536"
    },
    {
      "nct_id": "NCT01668563",
      "title": "International Subarachnoid Aneurysm Trial II",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intracranial Hemorrhage Ruptured Aneurysm"
      ],
      "interventions": [
        {
          "name": "surgical management",
          "type": "PROCEDURE"
        },
        {
          "name": "Endovascular management",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Centre hospitalier de l'Université de Montréal (CHUM)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1724,
      "start_date": "2012-11-12",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-08-15",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01668563"
    },
    {
      "nct_id": "NCT01745809",
      "title": "Bronchoscopy Study for Severe Asthma",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Severe Persistent Asthma"
      ],
      "interventions": [
        {
          "name": "Bronchoscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2013-01",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-06-01",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01745809"
    },
    {
      "nct_id": "NCT04680221",
      "title": "Stopping Opioid Overuse in Obstetrics to Halt Exposure Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "Liposomal bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "TAP block",
          "type": "PROCEDURE"
        },
        {
          "name": "Deposition of saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Missouri, Kansas City",
      "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": 97,
      "start_date": "2021-03-01",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2025-03-25",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04680221"
    },
    {
      "nct_id": "NCT04238455",
      "title": "Ultrasound-Guided Serratus Anterior Plane Block for Additional Pain Relief After Lung Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thoracic Surgery"
      ],
      "interventions": [
        {
          "name": "Sham serratus anterior plane block",
          "type": "PROCEDURE"
        },
        {
          "name": "Serratus anterior plane block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 93,
      "start_date": "2020-01-22",
      "completion_date": "2024-11-15",
      "has_results": false,
      "last_update_posted_date": "2024-11-20",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 6,
      "location_summary": "Middletown, New Jersey • Montvale, New Jersey • Commack, New York + 3 more",
      "locations": [
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04238455"
    },
    {
      "nct_id": "NCT04233736",
      "title": "Erector Spinae Plane Blocks (ESP) for Postoperative Pain in Lumbo-sacral Spine Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Erector Spinae Plane Block",
        "Lumbar Spine Surgery"
      ],
      "interventions": [
        {
          "name": "Bilateral lumbar erector spinae plane block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Francisco",
      "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": "2021-07-01",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04233736"
    },
    {
      "nct_id": "NCT02933814",
      "title": "Liposomal Bupivacaine in Ambulatory Hand Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Liposomal Bupivicaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loma Linda University",
      "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": "2018-02-09",
      "completion_date": "2019-02",
      "has_results": false,
      "last_update_posted_date": "2019-08-07",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "Loma Linda, California",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02933814"
    },
    {
      "nct_id": "NCT00873275",
      "title": "Ursodiol, Combination Chemotherapy, and Bevacizumab in Treating Patients With Stage IV Colorectal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FOLFOX regimen",
          "type": "DRUG"
        },
        {
          "name": "fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "ursodiol",
          "type": "DRUG"
        },
        {
          "name": "RNA analysis",
          "type": "GENETIC"
        },
        {
          "name": "gene expression analysis",
          "type": "GENETIC"
        },
        {
          "name": "polymerase chain reaction",
          "type": "GENETIC"
        },
        {
          "name": "western blotting",
          "type": "GENETIC"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        },
        {
          "name": "positron emission tomography (PET)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "GENETIC",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2009-03-11",
      "completion_date": "2025-02-26",
      "has_results": false,
      "last_update_posted_date": "2025-06-22",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00873275"
    },
    {
      "nct_id": "NCT03121677",
      "title": "Personalized Tumor Vaccine Strategy and PD-1 Blockade in Patients With Follicular Lymphoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Follicular Lymphoma"
      ],
      "interventions": [
        {
          "name": "Personalized tumor vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Poly ICLC",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Peripheral blood draws",
          "type": "PROCEDURE"
        },
        {
          "name": "Leukapheresis",
          "type": "PROCEDURE"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "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": 4,
      "start_date": "2018-10-16",
      "completion_date": "2023-08-07",
      "has_results": false,
      "last_update_posted_date": "2023-08-14",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03121677"
    },
    {
      "nct_id": "NCT02205801",
      "title": "Study of the Efficacy of Local Analgesia as an Adjunct to General Anesthesia in Thyroidectomy and Parathyroidectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Thyroid Neoplasms",
        "Goiter, Nodular",
        "Thyroid Nodule",
        "Graves' Disease",
        "Hyperparathyroidism"
      ],
      "interventions": [
        {
          "name": "Superficial Cervical Plexus Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Local Wound Infiltration",
          "type": "PROCEDURE"
        },
        {
          "name": "0.9% saline",
          "type": "DRUG"
        },
        {
          "name": "Marcaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "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": 36,
      "start_date": "2014-07",
      "completion_date": "2017-02-17",
      "has_results": true,
      "last_update_posted_date": "2018-03-09",
      "last_synced_at": "2026-11-01T16:44:18.385Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02205801"
    }
  ]
}