{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Extended-release+injectable+naltrexone+%28XR-NTX%29",
    "query": {
      "intervention": "Extended-release injectable naltrexone (XR-NTX)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 20,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Extended-release+injectable+naltrexone+%28XR-NTX%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T09:23:57.470Z",
  "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": "NCT01908062",
      "title": "Comparing Treatments for HIV-Infected Opioid and Alcohol Users in an Integrated Care Effectiveness Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Opioid Use Disorder",
        "Alcohol Use Disorder"
      ],
      "interventions": [
        {
          "name": "Extended Release Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Treatment As usual",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 51,
      "start_date": "2014-06",
      "completion_date": "2015-03",
      "has_results": true,
      "last_update_posted_date": "2019-03-19",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01908062"
    },
    {
      "nct_id": "NCT01982643",
      "title": "Accelerated Development of Additive Pharmacotherapy Treatment for Methamphetamine Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Methamphetamine Use Disorder"
      ],
      "interventions": [
        {
          "name": "naltrexone plus bupropion",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Walter Ling",
      "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": 49,
      "start_date": "2013-11",
      "completion_date": "2015-02",
      "has_results": true,
      "last_update_posted_date": "2020-03-23",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • Honolulu, Hawaii • Dallas, Texas",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01982643"
    },
    {
      "nct_id": "NCT04408313",
      "title": "Extended Release Naltrexone Versus Extended Release Buprenorphine With Individuals Leaving Jail",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Opioid-use Disorder"
      ],
      "interventions": [
        {
          "name": "XR-B",
          "type": "DRUG"
        },
        {
          "name": "XR-NTX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Friends Research Institute, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 240,
      "start_date": "2020-10-28",
      "completion_date": "2026-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04408313"
    },
    {
      "nct_id": "NCT05028062",
      "title": "Naltrexone in AUD Reward Drinkers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Alcohol Use Disorder",
        "Alcoholism"
      ],
      "interventions": [
        {
          "name": "XR-NTX 380 mg, intramuscular injection",
          "type": "DRUG"
        },
        {
          "name": "Medical Management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo intramuscular injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 60,
      "start_date": "2022-03-07",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-01-20",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05028062"
    },
    {
      "nct_id": "NCT04480554",
      "title": "Anti-retroviral Therapy, Medications for Opioid Use Disorder, Opioids and HIV Infection - Study 1",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid-use Disorder",
        "HIV-1-infection",
        "Immune Activation",
        "Inflammation",
        "Methadone",
        "Buprenorphine",
        "Naltrexone",
        "Antiretroviral Treatment"
      ],
      "interventions": [
        {
          "name": "Methadone",
          "type": "DRUG"
        },
        {
          "name": "Buprenorphine/naloxone",
          "type": "DRUG"
        },
        {
          "name": "XR-Naltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 78,
      "start_date": "2023-01-30",
      "completion_date": "2025-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04480554"
    },
    {
      "nct_id": "NCT01893827",
      "title": "Extended-Release vs. Oral Naltrexone Alcohol Treatment in Primary Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Alcohol Dependence"
      ],
      "interventions": [
        {
          "name": "XR-NTX (Extended-Release Naltrexone)",
          "type": "DRUG"
        },
        {
          "name": "Oral Naltrexone (O-NTX)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 237,
      "start_date": "2014-06",
      "completion_date": "2018-10-03",
      "has_results": true,
      "last_update_posted_date": "2020-06-16",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01893827"
    },
    {
      "nct_id": "NCT01563718",
      "title": "Pre-Release VIVITROL for Opioid Dependent Inmates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "naltrexone for extended release injectable suspension",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rhode Island Hospital",
      "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": 26,
      "start_date": "2012-03",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2015-10-22",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01563718"
    },
    {
      "nct_id": "NCT02445339",
      "title": "Extended-release Naltrexone and Care Management for Alcohol Dependent Frequent Emergency Department Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Alcohol Dependence",
        "Alcohol Use Disorder"
      ],
      "interventions": [
        {
          "name": "XR-NTX+CM (Extended-Release Naltrexone plus Care Management)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "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": 50,
      "start_date": "2015-07",
      "completion_date": "2019-02-08",
      "has_results": true,
      "last_update_posted_date": "2022-05-11",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02445339"
    },
    {
      "nct_id": "NCT03275350",
      "title": "Comparing Treatments for HIV-Infected Opioid Users in an Integrated Care Effectiveness Study (CHOICES) Scale-Up",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Opioid-use Disorder",
        "Hiv"
      ],
      "interventions": [
        {
          "name": "Naltrexone Injectable Suspension",
          "type": "DRUG"
        },
        {
          "name": "Treatment as usual",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 114,
      "start_date": "2018-02-05",
      "completion_date": "2019-11-08",
      "has_results": true,
      "last_update_posted_date": "2022-04-27",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 5,
      "location_summary": "Tarzana, California • Miami, Florida • Chicago, Illinois + 2 more",
      "locations": [
        {
          "city": "Tarzana",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03275350"
    },
    {
      "nct_id": "NCT04219540",
      "title": "Long-acting Buprenorphine vs. Naltrexone Opioid Treatments in CJS-involved Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid-use Disorder"
      ],
      "interventions": [
        {
          "name": "XR-B (SUBLOCADETM)",
          "type": "DRUG"
        },
        {
          "name": "XR-NTX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 675,
      "start_date": "2021-01-07",
      "completion_date": "2025-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-05-14",
      "last_synced_at": "2026-10-06T09:23:57.470Z",
      "location_count": 6,
      "location_summary": "New Haven, Connecticut • Baltimore, Maryland • Hanover, New Hampshire + 3 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Hanover",
          "state": "New Hampshire"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04219540"
    }
  ]
}