{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Morphine+matched+placebo",
    "query": {
      "intervention": "Morphine matched placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 51,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Morphine+matched+placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T08:37:16.266Z",
  "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": "NCT01427283",
      "title": "A Study of Oxycodone/Naloxone Controlled-release Tablets (OXN) to Assess Analgesic Efficacy and Management of Opioid-induced Constipation (OIC) in Opioid-experienced Subjects With Moderate to Severe Chronic Low Back Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Oxycodone/Naloxone controlled-release",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone HCl controlled-release",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 450,
      "start_date": "2011-08",
      "completion_date": "2014-10",
      "has_results": false,
      "last_update_posted_date": "2015-02-12",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 149,
      "location_summary": "Alabaster, Alabama • Birmingham, Alabama • Foley, Alabama + 114 more",
      "locations": [
        {
          "city": "Alabaster",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Foley",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01427283"
    },
    {
      "nct_id": "NCT05142267",
      "title": "Stress and Opioid Misuse Risk: The Role of Endogenous Opioid and Endocannabinoid Mechanisms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid Use Disorder",
        "Back Pain",
        "Stress"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone",
          "type": "DRUG"
        },
        {
          "name": "Naloxone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University 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": 101,
      "start_date": "2022-03-02",
      "completion_date": "2026-04-07",
      "has_results": false,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05142267"
    },
    {
      "nct_id": "NCT05587998",
      "title": "A Study to Assess the Effect of AZD4041 on Respiratory Drive in Recreational Opioid Users.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "Morphine",
          "type": "DRUG"
        },
        {
          "name": "AZD4041",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 45,
      "start_date": "2022-08-31",
      "completion_date": "2023-05-25",
      "has_results": true,
      "last_update_posted_date": "2024-11-15",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05587998"
    },
    {
      "nct_id": "NCT05571345",
      "title": "A Study to Evaluate the Oral Abuse Potential of PF614 in Non-Dependent Recreational Opioid Users (PF614-104)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recreational Drug Use"
      ],
      "interventions": [
        {
          "name": "PF614",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone Hydrochloride 40 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ensysce Biosciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 32,
      "start_date": "2022-10-05",
      "completion_date": "2022-12-28",
      "has_results": false,
      "last_update_posted_date": "2024-09-24",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05571345"
    },
    {
      "nct_id": "NCT01366014",
      "title": "A Study of ARRY-371797 in Patients With Osteoarthritis of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteoarthritis of the Knee"
      ],
      "interventions": [
        {
          "name": "ARRY-371797, p38 inhibitor; oral",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone hydrochloride (HCl) extended release (ER), opioid agonist; oral",
          "type": "DRUG"
        },
        {
          "name": "Placebo; oral",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "40 Years to 85 Years"
      },
      "enrollment_count": 157,
      "start_date": "2011-06",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2020-10-14",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 13,
      "location_summary": "Phoenix, Arizona • Fort Lauderdale, Florida • Pinellas Park, Florida + 10 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Pinellas Park",
          "state": "Florida"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Watertown",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01366014"
    },
    {
      "nct_id": "NCT02546765",
      "title": "Dexmedetomidine and IV Acetaminophen for the Prevention of Postoperative Delirium Following Cardiac Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Delirium"
      ],
      "interventions": [
        {
          "name": "IV acetaminophen & IV propofol",
          "type": "DRUG"
        },
        {
          "name": "IV acetaminophen & IV dexmedetomidine",
          "type": "DRUG"
        },
        {
          "name": "IV propofol & placebo",
          "type": "DRUG"
        },
        {
          "name": "IV dexmedetomidine & placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 140,
      "start_date": "2015-10",
      "completion_date": "2019-07",
      "has_results": true,
      "last_update_posted_date": "2020-04-09",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02546765"
    },
    {
      "nct_id": "NCT05156281",
      "title": "Efficacy and Safety of Remibrutinib Compared to Teriflunomide in Participants With Relapsing Multiple Sclerosis (RMS) (REMODEL-2)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Remibrutinib",
          "type": "DRUG"
        },
        {
          "name": "Teriflunomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 1007,
      "start_date": "2021-12-13",
      "completion_date": "2030-10-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 50,
      "location_summary": "Phoenix, Arizona • Hanford, California • Los Angeles, California + 42 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Hanford",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "West Hollywood",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05156281"
    },
    {
      "nct_id": "NCT04223609",
      "title": "Non-intrusive Detection of Temporary Neurologic Impairment By Opioids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Oxycodone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "EyeLink 1000 Plus",
          "type": "DEVICE"
        },
        {
          "name": "Oculo-Cognitive Addition test (OCAT)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "VT3mini - Eye Tracking Technology for OEMs",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "21 Years to 59 Years"
      },
      "enrollment_count": 14,
      "start_date": "2020-02-28",
      "completion_date": "2022-04-11",
      "has_results": true,
      "last_update_posted_date": "2023-04-05",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04223609"
    },
    {
      "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": "2026-09-22T08:37:16.266Z",
      "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": "NCT02737059",
      "title": "Effect of Naloxegol on Gastric, Small Bowel, and Colonic Transit in Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Constipation Drug Induced"
      ],
      "interventions": [
        {
          "name": "Naloxegol",
          "type": "DRUG"
        },
        {
          "name": "Codeine",
          "type": "DRUG"
        },
        {
          "name": "codeine placebo",
          "type": "DRUG"
        },
        {
          "name": "naloxegol placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Michael Camilleri",
      "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": 72,
      "start_date": "2016-07-01",
      "completion_date": "2017-05-10",
      "has_results": false,
      "last_update_posted_date": "2017-08-30",
      "last_synced_at": "2026-09-22T08:37:16.266Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02737059"
    }
  ]
}