{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ESP+block&page=2",
    "query": {
      "intervention": "ESP block",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ESP+block&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-09T01:44:45.591Z",
  "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": "NCT04707183",
      "title": "Comparison of Continuous Intravenous Lidocaine Infusion Versus ESP Block for Rib Fracture Analgesia",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rib Fractures"
      ],
      "interventions": [
        {
          "name": "Lidocaine IV Infusion",
          "type": "DRUG"
        },
        {
          "name": "2% Lidocaine via ESPB",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2025-05",
      "completion_date": "2026-05",
      "has_results": false,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04707183"
    },
    {
      "nct_id": "NCT04349774",
      "title": "Erector Spinae Plane Block vs Erector Spinae Plane Block With Serratus Anterior Plane Block in Thoracic Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Control Group - ESP block with SAP block",
          "type": "DRUG"
        },
        {
          "name": "Treatment Group - ESP block with SAP normal saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Anna Uskova",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-10-01",
      "completion_date": "2023-12-30",
      "has_results": false,
      "last_update_posted_date": "2022-11-14",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04349774"
    },
    {
      "nct_id": "NCT06519929",
      "title": "Analgesic Techniques for Rib Fractures",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Rib Fractures"
      ],
      "interventions": [
        {
          "name": "ESP block with catheter using ropivacaine (bolus followed by continuous infusion)",
          "type": "PROCEDURE"
        },
        {
          "name": "Lidocaine bolus (1 mg/kg) and infusion starting at 1 mg/kg/h",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2024-09-23",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06519929"
    },
    {
      "nct_id": "NCT04985500",
      "title": "ESP/PIF for Sternotomy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cardiac Surgery",
        "Sternotomy"
      ],
      "interventions": [
        {
          "name": "ESP block",
          "type": "PROCEDURE"
        },
        {
          "name": "PIF block",
          "type": "PROCEDURE"
        },
        {
          "name": "Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Bupivacain",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "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": 225,
      "start_date": "2021-07-09",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04985500"
    },
    {
      "nct_id": "NCT07632820",
      "title": "Erector Spinae Plane Block Versus Trigger Point Injection for Chronic Thoracic Myofascial Pain",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Back Pain"
      ],
      "interventions": [
        {
          "name": "Erector Spinae Plane (ESP) Block with 0.5% Plain Bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Trigger Point Injection (TPI) with 0.5% Plain Bupivacaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 76,
      "start_date": "2026-08-01",
      "completion_date": "2029-08-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 5,
      "location_summary": "Jacksonville, Florida • Baltimore, Maryland • Rochester, Minnesota + 2 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07632820"
    },
    {
      "nct_id": "NCT05794828",
      "title": "Erector Spinae Regional Anesthesia for Pain Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Pain Management"
      ],
      "interventions": [
        {
          "name": "Bupivacaine Injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "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": "2023-09-15",
      "completion_date": "2025-02-18",
      "has_results": false,
      "last_update_posted_date": "2025-08-27",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 4,
      "location_summary": "Ridley Park, Pennsylvania • Upland, Pennsylvania • San Antonio, Texas + 1 more",
      "locations": [
        {
          "city": "Ridley Park",
          "state": "Pennsylvania"
        },
        {
          "city": "Upland",
          "state": "Pennsylvania"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "Temple",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05794828"
    },
    {
      "nct_id": "NCT03805360",
      "title": "The Erector Spinae Plane Block and Its Effect on Respiratory Status and Pain Management in Rib Fracture Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Rib Fractures"
      ],
      "interventions": [
        {
          "name": "Ropivacaine",
          "type": "DRUG"
        },
        {
          "name": "Normal Saline Flush, 0.9% Injectable Solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Virginia Commonwealth University",
      "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": "2019-05-24",
      "completion_date": "2020-01-10",
      "has_results": false,
      "last_update_posted_date": "2020-08-07",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03805360"
    },
    {
      "nct_id": "NCT04995497",
      "title": "Intravenous(IV) vs. Erector Spinae Plane Blocks in Cardiac Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Erector Spinae Plane Block",
        "Pain Control",
        "Post-Operative Pain, Chronic"
      ],
      "interventions": [
        {
          "name": "Intravenous Administration of Lidocaine Post Cardiac Surgery",
          "type": "DRUG"
        },
        {
          "name": "Administration of Lidocaine Post Cardiac Surgery via ESP Catheter",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Archit Sharma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 70,
      "start_date": "2021-08-15",
      "completion_date": "2023-04-30",
      "has_results": true,
      "last_update_posted_date": "2025-04-09",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04995497"
    },
    {
      "nct_id": "NCT06077422",
      "title": "Exparel vs. Marcaine ESP Block for Post-cardiac Surgical Pain",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Opioid Use",
        "Perioperative Complication",
        "Heart Diseases"
      ],
      "interventions": [
        {
          "name": "bupivacaine liposome injectable suspension",
          "type": "DRUG"
        },
        {
          "name": "Bupivacaine Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2024-01-11",
      "completion_date": "2027-04-05",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06077422"
    },
    {
      "nct_id": "NCT05417113",
      "title": "Erector Spinae Block for Spine Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Lumbar Radiculopathy"
      ],
      "interventions": [
        {
          "name": "Liposomal bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Bupivacaine",
          "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": 13,
      "start_date": "2022-08-31",
      "completion_date": "2024-02-27",
      "has_results": true,
      "last_update_posted_date": "2024-05-29",
      "last_synced_at": "2026-09-09T01:44:45.591Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05417113"
    }
  ]
}