{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Postoperative+analgesia&page=4",
    "query": {
      "intervention": "Postoperative analgesia",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 857,
    "total_pages": 86,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Postoperative+analgesia&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Postoperative+analgesia&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T08:53:05.103Z",
  "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": "NCT05593341",
      "title": "Opioid Education in Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arthropathy of Knee",
        "Post Operative Pain",
        "Opioid Use",
        "Opioid Abuse",
        "Opioid Misuse"
      ],
      "interventions": [
        {
          "name": "Opioid education in person",
          "type": "OTHER"
        },
        {
          "name": "Opioid education via video",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "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": 42,
      "start_date": "2022-09-27",
      "completion_date": "2023-09-11",
      "has_results": false,
      "last_update_posted_date": "2024-12-27",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05593341"
    },
    {
      "nct_id": "NCT02363777",
      "title": "Paravertebral Catheters for Pancreatic Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Pain"
      ],
      "interventions": [
        {
          "name": "Epidural",
          "type": "PROCEDURE"
        },
        {
          "name": "Paravertebral catheters",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Minnesota",
      "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": 50,
      "start_date": "2012-08",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2017-08-31",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02363777"
    },
    {
      "nct_id": "NCT02011230",
      "title": "Measuring Pain and Hydration After Tonsillectomy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dehydration"
      ],
      "interventions": [
        {
          "name": "Hoist Group",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "TriHealth Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "98 Years",
        "sex": "ALL",
        "summary": "4 Years to 98 Years"
      },
      "enrollment_count": 57,
      "start_date": "2013-08",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2018-08-22",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02011230"
    },
    {
      "nct_id": "NCT02922153",
      "title": "The cryoICE™ CryoAnalgesia Study For Pain Management in Post thoRacic Procedures Via intercOSTal Cryoanalgesia (FROST)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Cryoanalgesia",
          "type": "DEVICE"
        },
        {
          "name": "Standard of Care",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "AtriCure, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 84,
      "start_date": "2016-06-13",
      "completion_date": "2019-08-28",
      "has_results": true,
      "last_update_posted_date": "2020-09-04",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Ann Arbor, Michigan • Royal Oak, Michigan + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Royal Oak",
          "state": "Michigan"
        },
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02922153"
    },
    {
      "nct_id": "NCT04443569",
      "title": "Lidocaine Patches After Cesarean Section",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Postoperative Pain",
        "Obstetric Pain",
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "Lidocaine patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo patch",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "52 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 52 Years · Female only"
      },
      "enrollment_count": 93,
      "start_date": "2021-10-10",
      "completion_date": "2022-08-31",
      "has_results": true,
      "last_update_posted_date": "2024-11-06",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04443569"
    },
    {
      "nct_id": "NCT04225468",
      "title": "Safe Options for ACL Recovery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anterior Cruciate Ligament Injuries",
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "ACL Opioid Exposure Reduction Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Karen Derefinko, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2020-02-12",
      "completion_date": "2022-06-03",
      "has_results": false,
      "last_update_posted_date": "2022-11-02",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04225468"
    },
    {
      "nct_id": "NCT01736358",
      "title": "The Use of Intranasal Ketoralac for Pain Management (Sprix)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Postoperative Pain Management",
        "Urolithiasis"
      ],
      "interventions": [
        {
          "name": "Intranasal Ketoralac",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 50,
      "start_date": "2012-10",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01736358"
    },
    {
      "nct_id": "NCT04549090",
      "title": "Ultrasound Guided Posterior Quadratus Lumborum Block for Postoperative Analgesia in Gynecologic Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Post-operative Pain",
        "Gynecologic Surgery",
        "Regional Anesthesia"
      ],
      "interventions": [
        {
          "name": "QL (quadratus lumborum) block administration",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pedram Bral",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 65 Years · Female only"
      },
      "enrollment_count": 50,
      "start_date": "2020-10-01",
      "completion_date": "2022-04-05",
      "has_results": false,
      "last_update_posted_date": "2022-04-12",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04549090"
    },
    {
      "nct_id": "NCT04145791",
      "title": "Ice Application for Postoperative Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Ice",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "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": 74,
      "start_date": "2019-02-15",
      "completion_date": "2021-02-03",
      "has_results": false,
      "last_update_posted_date": "2024-10-29",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 2,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04145791"
    },
    {
      "nct_id": "NCT01819610",
      "title": "Pharmacokinetics, Safety, and Efficacy of SPRIX in 12 to 17 Year Old Patients vs. Adult Patients Undergoing Open Surgical Procedures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "SPRIX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "American Regent, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "12 Years to 64 Years"
      },
      "enrollment_count": 60,
      "start_date": "2013-02",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2015-07-07",
      "last_synced_at": "2026-10-06T08:53:05.103Z",
      "location_count": 1,
      "location_summary": "Norristown, Pennsylvania",
      "locations": [
        {
          "city": "Norristown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01819610"
    }
  ]
}