{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Post-operation+Pain&page=4",
    "query": {
      "condition": "Post-operation Pain",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 714,
    "total_pages": 72,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Post-operation+Pain&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Post-operation+Pain&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-14T09:06:06.188Z",
  "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": "NCT03605901",
      "title": "Dosing of Methadone for Spine Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Standard dosing of methadone",
          "type": "DRUG"
        },
        {
          "name": "Aliquots of methadone titrated to apnea",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 21,
      "start_date": "2019-03-19",
      "completion_date": "2025-05-09",
      "has_results": true,
      "last_update_posted_date": "2026-06-23",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03605901"
    },
    {
      "nct_id": "NCT06810336",
      "title": "Pain Control and Quality of Recovery After Intravenous Methadone Versus Intravenous Remifentanil in Craniotomy Surgery",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Brain Injury",
        "Brain Tumors",
        "Craniotomy Surgery",
        "Pain",
        "Postoperative",
        "Postoperative Care"
      ],
      "interventions": [
        {
          "name": "Remifentanil",
          "type": "DRUG"
        },
        {
          "name": "Methadone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "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": 40,
      "start_date": "2025-03-10",
      "completion_date": "2027-09-10",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06810336"
    },
    {
      "nct_id": "NCT03652818",
      "title": "Dental Pain Study of Analgesics in Patients Undergoing Molar Removal",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Dental Pain"
      ],
      "interventions": [
        {
          "name": "Pre-Op pregabalin",
          "type": "DRUG"
        },
        {
          "name": "Pre-Op Placebo 1",
          "type": "DRUG"
        },
        {
          "name": "Post-Op pregabalin",
          "type": "DRUG"
        },
        {
          "name": "Post-Op Placebo 1",
          "type": "DRUG"
        },
        {
          "name": "Post-Op Placebo 2",
          "type": "DRUG"
        },
        {
          "name": "Post-Op acetaminophen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nevakar, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "17 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "17 Years to 55 Years"
      },
      "enrollment_count": 115,
      "start_date": "2018-06-15",
      "completion_date": "2018-09-20",
      "has_results": true,
      "last_update_posted_date": "2021-11-23",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03652818"
    },
    {
      "nct_id": "NCT01539538",
      "title": "A Multicenter, Randomized, Open-Label, Parallel-Group Trial to Compare the Efficacy and Safety of the Sufentanil NanoTab PCA System/15 mcg (Zalviso™)to Intravenous Patient-Controlled Analgesia With Morphine for the Treatment of Acute Post-Operative Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Post-Operative Pain"
      ],
      "interventions": [
        {
          "name": "Sufentanil NanoTab PCA System/15 mcg",
          "type": "DRUG"
        },
        {
          "name": "morphine IV PCA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Talphera, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 357,
      "start_date": "2012-04",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2015-10-01",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 16,
      "location_summary": "Florence, Alabama • Montgomery, Alabama • Sheffield, Alabama + 13 more",
      "locations": [
        {
          "city": "Florence",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01539538"
    },
    {
      "nct_id": "NCT04240626",
      "title": "Multimodal Analgesia Effect on Post Surgical Patient",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Obesity, Morbid",
        "Surgery",
        "Bariatric Surgery Candidate"
      ],
      "interventions": [
        {
          "name": "Neurontin",
          "type": "DRUG"
        },
        {
          "name": "Dilaudid Injectable Product",
          "type": "DRUG"
        },
        {
          "name": "Marcaine Injectable Product",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Hycet 7.5Mg-325Mg/15Ml Solution",
          "type": "DRUG"
        },
        {
          "name": "Zofran Injection",
          "type": "DRUG"
        },
        {
          "name": "Scopolamine patch",
          "type": "DRUG"
        },
        {
          "name": "Ativan",
          "type": "DRUG"
        },
        {
          "name": "Flexeril Oral Product",
          "type": "DRUG"
        },
        {
          "name": "Tylenol Suspension",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 65 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2021-01-20",
      "completion_date": "2025-06-24",
      "has_results": false,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04240626"
    },
    {
      "nct_id": "NCT01011426",
      "title": "Bisacodyl Use in the Post-operative Care of Obstetrical/Gynecological (OB/GYN) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Nausea and Vomiting",
        "Abdominal Pain"
      ],
      "interventions": [
        {
          "name": "Bisacodyl",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cooper Norcross Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "12 Years and older · Female only"
      },
      "enrollment_count": 285,
      "start_date": "2009-04",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2014-01-20",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Camden, New Jersey",
      "locations": [
        {
          "city": "Camden",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01011426"
    },
    {
      "nct_id": "NCT07469150",
      "title": "Efficacy of Different Disinfection Technologies in Molar Non-Surgical Retreatment",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Apical Periodontitis"
      ],
      "interventions": [
        {
          "name": "GentleWave System",
          "type": "PROCEDURE"
        },
        {
          "name": "Conventional rotary instrumentation with passive ultrasonic irrigation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2027-07",
      "completion_date": "2030-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-08",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07469150"
    },
    {
      "nct_id": "NCT03469310",
      "title": "Minimizing Narcotic Analgesics After Endocrine Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Thyroid Cancer",
        "Thyroid Nodule",
        "Thyroid Neoplasms",
        "Thyroid Goitre",
        "Thyroid Diseases",
        "Parathyroid Diseases",
        "Parathyroid Adenoma",
        "Parathyroid Hyperplasia"
      ],
      "interventions": [
        {
          "name": "Acetaminophen 500Mg Cap",
          "type": "DRUG"
        },
        {
          "name": "Tylenol #3 Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Tramadol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Minerva A Romero Arenas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 126,
      "start_date": "2018-03-09",
      "completion_date": "2020-10-02",
      "has_results": false,
      "last_update_posted_date": "2021-05-11",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 1,
      "location_summary": "Edinburg, Texas",
      "locations": [
        {
          "city": "Edinburg",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03469310"
    },
    {
      "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": "2026-11-14T09:06:06.188Z",
      "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": "NCT03584373",
      "title": "Pain Outcomes of Non-opioid vs. Opioid Analgesia for Kidney Stone Surgery.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nephrolithiasis"
      ],
      "interventions": [
        {
          "name": "Ketorolac Oral Tablet [Toradol]",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone Acetaminophen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 119,
      "start_date": "2018-07-27",
      "completion_date": "2022-03-23",
      "has_results": true,
      "last_update_posted_date": "2023-12-18",
      "last_synced_at": "2026-11-14T09:06:06.188Z",
      "location_count": 2,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03584373"
    }
  ]
}