{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Pain%2C+Acute+Postoperative",
    "query": {
      "condition": "Pain, Acute Postoperative"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 168,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Pain%2C+Acute+Postoperative&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T19:14:20.665Z",
  "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": "NCT04849455",
      "title": "Erector Spinae Plane Block Catheters and Intrathecal Morphine for Hepatic Resection",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hepatic Resection",
        "Acute Pain",
        "Anesthesia",
        "Anesthesia, Local"
      ],
      "interventions": [
        {
          "name": "0.2% ropivacaine local anesthetic continuous erector spinae plane block",
          "type": "DRUG"
        },
        {
          "name": "0.2% ropivacaine local anesthetic superficially taped continuous erector spinae plane block",
          "type": "DRUG"
        },
        {
          "name": "Spinal Morphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2021-05-24",
      "completion_date": "2023-05-01",
      "has_results": false,
      "last_update_posted_date": "2022-06-07",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04849455"
    },
    {
      "nct_id": "NCT04917055",
      "title": "iPACK Block With Dexamethasone For Total Knee Replacement",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Acute Pain",
        "Anesthesia, Local",
        "Regional Anesthesia"
      ],
      "interventions": [
        {
          "name": "ropivacaine 0.25% with epinephrine and 6mg dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2021-06-07",
      "completion_date": "2022-06-07",
      "has_results": false,
      "last_update_posted_date": "2023-11-07",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04917055"
    },
    {
      "nct_id": "NCT05796583",
      "title": "Pulsed Shortwave Therapy for Postoperative Analgesia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Pain, Acute"
      ],
      "interventions": [
        {
          "name": "Active Pulsed Shortwave Treatment",
          "type": "DEVICE"
        },
        {
          "name": "Sham Treatment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2023-04-04",
      "completion_date": "2024-10-20",
      "has_results": true,
      "last_update_posted_date": "2025-03-17",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05796583"
    },
    {
      "nct_id": "NCT04848428",
      "title": "Online Mindfulness-based Intervention to Prevent Chronic Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Chronic Pain",
        "Pain Catastrophizing",
        "Pain, Acute"
      ],
      "interventions": [
        {
          "name": "Online mindfulness-based cognitive therapy",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Online standardized education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Florida State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 36,
      "start_date": "2021-05-01",
      "completion_date": "2022-11-29",
      "has_results": false,
      "last_update_posted_date": "2023-02-01",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "Tallahassee, Florida",
      "locations": [
        {
          "city": "Tallahassee",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04848428"
    },
    {
      "nct_id": "NCT01361568",
      "title": "Study to Evaluate Analgesic Effect of IV Administration of Kappa Agonist CR845 For Hysterectomy Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "CR845",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cara Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 65 Years · Female only"
      },
      "enrollment_count": 203,
      "start_date": "2011-07",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2014-05-29",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 18,
      "location_summary": "Florence, Alabama • Mobile, Alabama • Montgomery, Alabama + 14 more",
      "locations": [
        {
          "city": "Florence",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Sheffield",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01361568"
    },
    {
      "nct_id": "NCT05494645",
      "title": "Exparel Use in Peripheral Nerve Blocks and Local Infiltration for Foot and Ankle Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Pain, Acute Postoperative",
        "Ankle Fractures",
        "Ankle Injuries and Disorders"
      ],
      "interventions": [
        {
          "name": "Exparel",
          "type": "DRUG"
        },
        {
          "name": "Peripheral Nerve Block",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "St. Luke's Hospital, Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 248,
      "start_date": "2022-03-01",
      "completion_date": "2023-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-28",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "Bethlehem, Pennsylvania",
      "locations": [
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05494645"
    },
    {
      "nct_id": "NCT02221674",
      "title": "Use of Tapentadol Oral Solution for Pain After Surgery in Children From Newborn to Less Than 2 Years Old",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Moderate to Severe Acute Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Tapentadol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Grünenthal GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "23 Months",
        "sex": "ALL",
        "summary": "1 Day to 23 Months"
      },
      "enrollment_count": 40,
      "start_date": "2014-11-05",
      "completion_date": "2016-11-03",
      "has_results": true,
      "last_update_posted_date": "2018-01-29",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 4,
      "location_summary": "Palo Alto, California • Louisville, Kentucky • Durham, North Carolina + 1 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02221674"
    },
    {
      "nct_id": "NCT02395653",
      "title": "Safety and Clinical Utility Study of SSEC Fentanyl 40 mcg for Acute Post-op Pain Management in Pediatric Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "fentanyl",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The Medicines Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 71,
      "start_date": "2015-06-29",
      "completion_date": "2016-09-12",
      "has_results": true,
      "last_update_posted_date": "2017-10-26",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 10,
      "location_summary": "Palo Alto, California • Miami, Florida • Atlanta, Georgia + 7 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02395653"
    },
    {
      "nct_id": "NCT04790812",
      "title": "Preemptive Analgesia With Celecoxib for Acute Dental Pain Management",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 65,
      "start_date": "2021-04-22",
      "completion_date": "2023-03-01",
      "has_results": true,
      "last_update_posted_date": "2024-03-27",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04790812"
    },
    {
      "nct_id": "NCT02926573",
      "title": "Perioperative Gabapentin Use In Head And Neck Mucosal Surgery Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Head and Neck Cancer",
        "Acute Pain",
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Gabapentin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 123,
      "start_date": "2016-06-24",
      "completion_date": "2017-06-21",
      "has_results": true,
      "last_update_posted_date": "2018-08-08",
      "last_synced_at": "2026-06-10T19:14:20.665Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02926573"
    }
  ]
}