{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Moderate+to+Severe+Postoperative+Pain&page=2",
    "query": {
      "condition": "Moderate to Severe Postoperative Pain",
      "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?condition=Moderate+to+Severe+Postoperative+Pain&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T09:40:36.526Z",
  "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": "NCT00315835",
      "title": "Safety of the Buprenorphine Transdermal Delivery System in Subjects With Mod-to-Sev Pain Following Orthopedic Surgery.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Buprenorphine transdermal delivery system",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Purdue Pharma LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "1996-10",
      "completion_date": "1997-11",
      "has_results": false,
      "last_update_posted_date": "2006-04-19",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 1,
      "location_summary": "Plantation, Florida",
      "locations": [
        {
          "city": "Plantation",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00315835"
    },
    {
      "nct_id": "NCT01016808",
      "title": "Comparison of the Efficacy and Safety of Q8003 Versus Its Individual Components in Bunionectomy Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Moderate to Severe Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Q8003",
          "type": "DRUG"
        },
        {
          "name": "Morphine sulfate",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone HCl",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "QRxPharma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 522,
      "start_date": "2009-12",
      "completion_date": "2010-03",
      "has_results": false,
      "last_update_posted_date": "2012-05-17",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 5,
      "location_summary": "Anaheim, California • Owings Mills, Maryland • Pasadena, Maryland + 2 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Owings Mills",
          "state": "Maryland"
        },
        {
          "city": "Pasadena",
          "state": "Maryland"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01016808"
    },
    {
      "nct_id": "NCT02915978",
      "title": "Fentanyl Sublingual Spray for the Treatment of Moderate to Severe Post-Operative Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Fentanyl",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "INSYS Therapeutics Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 45,
      "start_date": "2016-12",
      "completion_date": "2017-02-10",
      "has_results": true,
      "last_update_posted_date": "2018-02-14",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona • Anaheim, California",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02915978"
    },
    {
      "nct_id": "NCT02381132",
      "title": "A Randomized, Open Label, Prospective Study to Explore the Clinical Characteristics of Oral MNK155 and Norco 7.5mg/325 When Used for the Treatment of Moderate to Severe Post Operative Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Post Operative Pain"
      ],
      "interventions": [
        {
          "name": "Norco 7.5mg/325",
          "type": "DRUG"
        },
        {
          "name": "MNK155",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neil Singla",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 99,
      "start_date": "2014-11",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-03-25",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 1,
      "location_summary": "Pasadena, California",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02381132"
    },
    {
      "nct_id": "NCT00831051",
      "title": "Comparison of the Efficacy and Safety of Q8003 Versus Its Individual Components in Bunionectomy Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Q8003",
          "type": "DRUG"
        },
        {
          "name": "Morphine sulfate",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone HCl",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone HCl 4mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "QRxPharma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 197,
      "start_date": "2008-12",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2012-05-17",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 6,
      "location_summary": "Phoenix, Arizona • Anaheim, California • Owings Mills, Maryland + 3 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Owings Mills",
          "state": "Maryland"
        },
        {
          "city": "Pasadena",
          "state": "Maryland"
        },
        {
          "city": "Altoona",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00831051"
    },
    {
      "nct_id": "NCT00876746",
      "title": "Optimization of Catheter Insertion Site for Continuous Peripheral Nerve Blocks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Upper-extremity Surgery",
        "Post-operative Pain"
      ],
      "interventions": [
        {
          "name": "Supraclavicular vs. Infraclavicular ropivicaine infusion",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "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": 60,
      "start_date": "2008-12",
      "completion_date": "2010-01",
      "has_results": false,
      "last_update_posted_date": "2010-06-15",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00876746"
    },
    {
      "nct_id": "NCT00997867",
      "title": "Perineural Catheter Insertion Distance for Continuous Peripheral Nerve Blocks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Lower Extremity Surgery",
        "Upper Extremity Surgery",
        "Post-operative Pain"
      ],
      "interventions": [
        {
          "name": "Sciatic catheter left 0-1cm past needle tip vs. 5-6cm past needle tip",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "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": 350,
      "start_date": "2009-11",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2010-10-28",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00997867"
    },
    {
      "nct_id": "NCT02687451",
      "title": "Clinical Study to Evaluate the Effectiveness, Safety, and Tolerability of Oxymorphone Immediate Release (IR) Oral Liquid in Post Surgical Pediatric Subjects",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Post-Operative Pain",
        "Acute Pain"
      ],
      "interventions": [
        {
          "name": "Oxymorphone HCl",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Endo USA Inc., a Keenova Therapeutics Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "2 Years",
        "sex": "ALL",
        "summary": "0 Years to 2 Years"
      },
      "enrollment_count": 28,
      "start_date": "2016-04",
      "completion_date": "2020-09-15",
      "has_results": true,
      "last_update_posted_date": "2021-10-26",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 3,
      "location_summary": "Durham, North Carolina • Dallas, Texas • Houston, Texas",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02687451"
    },
    {
      "nct_id": "NCT02634788",
      "title": "Study of Buprenorphine Sublingual Spray for the Treatment of Moderate to Severe Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Buprenorphine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "INSYS Therapeutics Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 322,
      "start_date": "2016-01-29",
      "completion_date": "2016-06-24",
      "has_results": true,
      "last_update_posted_date": "2017-08-14",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Anaheim, California • Pasadena, Maryland + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "Maryland"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02634788"
    },
    {
      "nct_id": "NCT02746263",
      "title": "Multicenter Study to Compare Intravenous and Oral Acetaminophen for the Treatment of Acute Moderate to Severe Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acute Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "IV acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Oral acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Morphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mallinckrodt",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 1,
      "start_date": "2016-04-27",
      "completion_date": "2016-05-05",
      "has_results": true,
      "last_update_posted_date": "2019-11-19",
      "last_synced_at": "2026-07-24T09:40:36.526Z",
      "location_count": 2,
      "location_summary": "Pensacola, Florida • Columbus, Ohio",
      "locations": [
        {
          "city": "Pensacola",
          "state": "Florida"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02746263"
    }
  ]
}