{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPIOID&page=39",
    "query": {
      "intervention": "OPIOID",
      "page": 39
    },
    "page_size": 10
  },
  "pagination": {
    "page": 39,
    "page_size": 10,
    "total_count": 2686,
    "total_pages": 269,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPIOID&page=40&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPIOID&page=38&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-29T15:10:00.492Z",
  "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": "NCT00214955",
      "title": "Study to Evaluate the Efficacy and Safety of ORAVESCENT Fentanyl Citrate for the Management of Breakthrough Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Neuropathic Pain"
      ],
      "interventions": [
        {
          "name": "ORAVESCENT Fentanyl Citrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cephalon",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 120,
      "start_date": "2005-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-05-09",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 17,
      "location_summary": "Jonesboro, Arkansas • Bakersfield, California • San Diego, California + 13 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00214955"
    },
    {
      "nct_id": "NCT06524232",
      "title": "The STop UNhealthy Substance Use Now Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Risky Health Behavior",
        "Substance Use Disorders",
        "Substance Abuse",
        "Alcohol Use Disorder",
        "Drinking, Alcohol",
        "Substance Use"
      ],
      "interventions": [
        {
          "name": "Practice Facilitation (PF)",
          "type": "OTHER"
        },
        {
          "name": "Learning Collaborative (LC)",
          "type": "OTHER"
        },
        {
          "name": "Performance Incentives (PI)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 144,
      "start_date": "2024-09-16",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-03-25",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 3,
      "location_summary": "Cincinnati, Ohio • Columbus, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06524232"
    },
    {
      "nct_id": "NCT02542384",
      "title": "A Study Evaluating the Overall Pain Relief and Safety of Intravenous (IV) CR845 in Patients Undergoing Abdominal Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Post Abdominal Surgery Pain"
      ],
      "interventions": [
        {
          "name": "CR845 IV 1 mcg/kg",
          "type": "DRUG"
        },
        {
          "name": "CR845 IV 0.5 mcg/kg",
          "type": "DRUG"
        },
        {
          "name": "Placebo IV",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cara Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 451,
      "start_date": "2015-09",
      "completion_date": "2018-06",
      "has_results": false,
      "last_update_posted_date": "2019-05-31",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 23,
      "location_summary": "Sheffield, Alabama • New Haven, Connecticut • Bradenton, Florida + 20 more",
      "locations": [
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Bradenton",
          "state": "Florida"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02542384"
    },
    {
      "nct_id": "NCT05720949",
      "title": "Genicular Nerve Blocks for Anterior Cruciate Ligament Knee Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "ACL",
        "Anterior Cruciate Ligament Injuries"
      ],
      "interventions": [
        {
          "name": "Genicular Nerve Block with bupivacaine and preservative free dexamethasone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 192,
      "start_date": "2023-01-12",
      "completion_date": "2024-12-02",
      "has_results": true,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05720949"
    },
    {
      "nct_id": "NCT03363243",
      "title": "Advancing STOP: Self-regulation Therapy for Opioid Addiction and Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid-use Disorder",
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "STOP Therapy Treatment group",
          "type": "OTHER"
        },
        {
          "name": "Treatment as usual (TAU) group",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "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": 52,
      "start_date": "2018-03-01",
      "completion_date": "2024-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-03-27",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03363243"
    },
    {
      "nct_id": "NCT04801498",
      "title": "Chronic Pain, Opioid Use, and Epidermal Nerve Fiber Density",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain",
        "Opioid Use",
        "Nerve Disorders"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 38,
      "start_date": "2020-12-07",
      "completion_date": "2024-06-25",
      "has_results": false,
      "last_update_posted_date": "2024-11-06",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04801498"
    },
    {
      "nct_id": "NCT06432465",
      "title": "tDCS to Decrease Opioid Relapse (UH3)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "active tDCS",
          "type": "DEVICE"
        },
        {
          "name": "sham tDCS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Butler Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 100,
      "start_date": "2024-04-17",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-29",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06432465"
    },
    {
      "nct_id": "NCT00345384",
      "title": "Dexmedetomidine for the Control of Post-Operative Pain in Thoracotomy Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Post-operative Pain",
        "Respiratory Depression"
      ],
      "interventions": [
        {
          "name": "Dexmedetomidine",
          "type": "DRUG"
        },
        {
          "name": "Placebo (Normal Saline)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Baylor Research Institute",
      "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": 38,
      "start_date": "2008-05",
      "completion_date": "2010-01",
      "has_results": true,
      "last_update_posted_date": "2016-02-08",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00345384"
    },
    {
      "nct_id": "NCT05528848",
      "title": "Multi-System Analysis of Opioid Receptor Binding",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "Carfentanil, C-11",
          "type": "DRUG"
        },
        {
          "name": "Naloxone",
          "type": "DRUG"
        },
        {
          "name": "Loperamide Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 25,
      "start_date": "2022-09-20",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-03-30",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05528848"
    },
    {
      "nct_id": "NCT04659317",
      "title": "Opioid-Free Orthopaedics",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain",
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Oxycodone 5 mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2020-12-11",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-10-29T15:10:00.492Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Tucker, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Tucker",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04659317"
    }
  ]
}