{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fentanyl+%28high+dose%29&page=2",
    "query": {
      "intervention": "Fentanyl (high dose)",
      "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?intervention=Fentanyl+%28high+dose%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T12:51:45.762Z",
  "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": "NCT05856136",
      "title": "A Study to Investigate the Effects of Opioid Exposure on the Ability of the Diaphragm Muscle",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Respiratory Function Loss",
        "Respiratory Complication"
      ],
      "interventions": [
        {
          "name": "Fentanyl Injection",
          "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": 69,
      "start_date": "2023-06-19",
      "completion_date": "2027-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05856136"
    },
    {
      "nct_id": "NCT01270659",
      "title": "Safety and Efficacy Study of Fentanyl Buccal Tablet Use in the Emergency Department for Isolated Extremity Injury",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Fentanyl",
          "type": "DRUG"
        },
        {
          "name": "oxycodone/acetaminophen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 60,
      "start_date": "2011-05",
      "completion_date": "2014-10",
      "has_results": true,
      "last_update_posted_date": "2017-06-20",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01270659"
    },
    {
      "nct_id": "NCT01298778",
      "title": "High Pain Intervention in Cesarean Sections",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Other Chronic Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Duramorph 150",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Duramorph 300",
          "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": 69,
      "start_date": "2010-08",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2018-09-10",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01298778"
    },
    {
      "nct_id": "NCT02489019",
      "title": "Fentanyl Effect on Blood Pressure in Elderly Patients After Induction of General Anesthesia",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Hypotension"
      ],
      "interventions": [
        {
          "name": "Sodium chloride",
          "type": "DRUG"
        },
        {
          "name": "Fentanyl",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loyola University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 105,
      "start_date": "2018-02-19",
      "completion_date": "2022-12",
      "has_results": false,
      "last_update_posted_date": "2019-06-05",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Maywood, Illinois",
      "locations": [
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02489019"
    },
    {
      "nct_id": "NCT01592708",
      "title": "Study of Anesthesia Techniques to Reduce Nausea and Vomiting After Jaw Corrective Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post-operative Nausea",
        "Post-operative Vomiting",
        "Nausea Persistent"
      ],
      "interventions": [
        {
          "name": "Antiemetic anesthesia protocol",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 233,
      "start_date": "2012-06",
      "completion_date": "2014-04",
      "has_results": true,
      "last_update_posted_date": "2014-08-20",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01592708"
    },
    {
      "nct_id": "NCT02597478",
      "title": "Fentanyl Sublingual Spray for Exercise-Induced Breakthrough Dyspnea",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Advanced Cancers"
      ],
      "interventions": [
        {
          "name": "Fentanyl Sublingual Spray",
          "type": "DRUG"
        },
        {
          "name": "Shuttle Walk Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mental Ability Tests",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Phone Call",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2016-01-04",
      "completion_date": "2021-01-27",
      "has_results": true,
      "last_update_posted_date": "2021-02-09",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02597478"
    },
    {
      "nct_id": "NCT06316830",
      "title": "Identifying Optimal Buprenorphine Dosing for Opioid Use Disorder Treatment and Prevention of Overdose",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "Buprenorphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rhode Island Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2025-01-06",
      "completion_date": "2027-11-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-23",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06316830"
    },
    {
      "nct_id": "NCT06379984",
      "title": "Rapid Outpatient Low-dose Initiation of Buprenorphine for OUD With Fentanyl Use",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "Buprenorphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 60,
      "start_date": "2025-05-08",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06379984"
    },
    {
      "nct_id": "NCT06262347",
      "title": "Personally-Tailored Opioid-overdose and Medication for Opioid Use Disorder (MOUD) Education (TOME) for Pregnant and Postpartum Persons in MOUD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid Use Disorder",
        "Pregnancy Related",
        "Substance Use",
        "Drug Abuse",
        "Drug Abuse in Pregnancy",
        "Drug Addiction"
      ],
      "interventions": [
        {
          "name": "Personally-Tailored Opioid-overdose and Medication for opioid use disorder (MOUD) Education (TOME)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "T. John Winhusen, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 131,
      "start_date": "2024-06-13",
      "completion_date": "2024-11-11",
      "has_results": true,
      "last_update_posted_date": "2025-05-11",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 6,
      "location_summary": "Jacksonville, Florida • Pittsburgh, Pennsylvania • Charleston, South Carolina + 3 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06262347"
    },
    {
      "nct_id": "NCT03882788",
      "title": "The Effect of Anesthesia on Neurodevelopmental Outcome (NDO)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anesthesia; Adverse Effect",
        "Congenital Heart Disease",
        "Neurodevelopmental Disorders"
      ],
      "interventions": [
        {
          "name": "Isoflurane",
          "type": "DRUG"
        },
        {
          "name": "Fentanyl (high dose)",
          "type": "DRUG"
        },
        {
          "name": "Fentanyl (low dose)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "36 Months",
        "sex": "ALL",
        "summary": "1 Day to 36 Months"
      },
      "enrollment_count": 153,
      "start_date": "2013-04-22",
      "completion_date": "2020-11-19",
      "has_results": true,
      "last_update_posted_date": "2022-05-09",
      "last_synced_at": "2026-09-29T12:51:45.762Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03882788"
    }
  ]
}