{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Subarachnoid+block",
    "query": {
      "intervention": "Subarachnoid block"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 141,
    "total_pages": 15,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Subarachnoid+block&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T16:45:33.936Z",
  "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": "NCT04331938",
      "title": "Efficacy of Percutaneous SPG Block in Aneurysmal SAH",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Subarachnoid Hemorrhage",
        "Headache"
      ],
      "interventions": [
        {
          "name": "Regional anesthetic SPG block-bilateral",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 2,
      "start_date": "2020-11-01",
      "completion_date": "2024-04-08",
      "has_results": false,
      "last_update_posted_date": "2024-04-09",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04331938"
    },
    {
      "nct_id": "NCT02190903",
      "title": "A Trial To Assess Risk of Delirium in Older Adults Undergoing Hip Fracture Surgery With Spinal or General Anesthesia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Complications",
        "Hip Fracture",
        "Delirium"
      ],
      "interventions": [
        {
          "name": "General endotracheal anesthesia",
          "type": "OTHER"
        },
        {
          "name": "Regional (spinal) Anesthesia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "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": "2013-10",
      "completion_date": "2015-04",
      "has_results": true,
      "last_update_posted_date": "2018-07-30",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02190903"
    },
    {
      "nct_id": "NCT07672301",
      "title": "Total Intravenous Anesthesia vs Spinal Anesthesia in Patients Undergoing Unilateral Primary Total Knee Arthroplasty",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Total Knee Arthroplasty (TKA)"
      ],
      "interventions": [
        {
          "name": "Total IntraVenous Anesthesia (TIVA)",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Spinal-Block",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Electroencephalogram (EEG)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT",
        "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": 150,
      "start_date": "2026-03-11",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07672301"
    },
    {
      "nct_id": "NCT06747494",
      "title": "General vs Spinal in Total Joint Arthroplasty (TJA)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Hip Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "General Anesthesia",
          "type": "PROCEDURE"
        },
        {
          "name": "Spinal Anesthesia",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2396,
      "start_date": "2025-02-01",
      "completion_date": "2030-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06747494"
    },
    {
      "nct_id": "NCT02862912",
      "title": "Chloroprocaine Spinal Anesthesia for Cervical Cerclage (CP Spinal)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Adverse Reaction to Spinal Anesthetic",
        "Maternal Care for Cervical Incompetence"
      ],
      "interventions": [
        {
          "name": "Chloroprocaine",
          "type": "DRUG"
        },
        {
          "name": "Bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Fentanyl",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 43,
      "start_date": "2016-11-08",
      "completion_date": "2020-01-31",
      "has_results": true,
      "last_update_posted_date": "2020-12-24",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02862912"
    },
    {
      "nct_id": "NCT02101047",
      "title": "Phenylephrine Dose and Mode of Administration for Spinal Anesthesia Induced Hypotension",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Complications; Cesarean Section",
        "Spinal Anesthetics Causing Adverse Effects in Therapeutic Use"
      ],
      "interventions": [
        {
          "name": "Phenylephrine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2015-08",
      "completion_date": "2016-12-31",
      "has_results": false,
      "last_update_posted_date": "2017-11-08",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02101047"
    },
    {
      "nct_id": "NCT02818894",
      "title": "Spinal Anesthesia in Total Hip Arthroplasty",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Total Hip Arthroplasty"
      ],
      "interventions": [
        {
          "name": "Lidocaine",
          "type": "DRUG"
        },
        {
          "name": "Bupivacaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas L Bradbury",
      "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": 135,
      "start_date": "2016-09-27",
      "completion_date": "2020-03-05",
      "has_results": true,
      "last_update_posted_date": "2022-09-23",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02818894"
    },
    {
      "nct_id": "NCT04368364",
      "title": "A Randomized Control Trial Comparing Analgesic Benefits of Ultrasound-guided Single vs Continuous Quadratus Lumborum Blocks (QLB)vs Intrathecal Morphine(ITM) for Post Cesarean Section Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Intrathecal morphine sulfate (ITM)",
          "type": "DRUG"
        },
        {
          "name": "Bupivacaine hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "ropivacaine hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 3,
      "start_date": "2020-05-22",
      "completion_date": "2020-06-29",
      "has_results": true,
      "last_update_posted_date": "2022-05-16",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 2,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04368364"
    },
    {
      "nct_id": "NCT01414777",
      "title": "Intravenous Ondansetron to Attenuate the Hypotensive, Bradycardic Response to Spinal Anesthesia in Healthy Parturients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Hypotension",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "ondansetron",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 68,
      "start_date": "2009-11",
      "completion_date": "2011-06",
      "has_results": false,
      "last_update_posted_date": "2022-03-24",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01414777"
    },
    {
      "nct_id": "NCT01176006",
      "title": "Pilot Study of Reduced-Intensity Hematopoietic Stem Cell Transplant of DOCK8 Deficiency",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "DOCK8 Deficiency"
      ],
      "interventions": [
        {
          "name": "Reduced-intensity hematopoietic stem cell",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludarabine(Fludara, Berlex Laboratories)",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide(CTX, Cytoxan)",
          "type": "DRUG"
        },
        {
          "name": "Total Body Irradiation (TBI)",
          "type": "PROCEDURE"
        },
        {
          "name": "Busulfan (Busulfex)",
          "type": "DRUG"
        },
        {
          "name": "Donor peripheral blood stem cell mobiliation and collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Harvest Procedure",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "4 Years to 120 Years"
      },
      "enrollment_count": 70,
      "start_date": "2010-10-05",
      "completion_date": "2028-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-09-05T16:45:33.936Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01176006"
    }
  ]
}