{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Extended-Release+Naltrexone&page=2",
    "query": {
      "intervention": "Extended-Release Naltrexone",
      "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=Extended-Release+Naltrexone&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T01:24:33.440Z",
  "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": "NCT03902821",
      "title": "Reducing Overdose After Release From Incarceration",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Overdose, Drug"
      ],
      "interventions": [
        {
          "name": "XR-NTX and Certified Recovery Mentor",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 100 Years · Female only"
      },
      "enrollment_count": 65,
      "start_date": "2019-06-17",
      "completion_date": "2023-11-30",
      "has_results": false,
      "last_update_posted_date": "2024-04-17",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Wilsonville, Oregon",
      "locations": [
        {
          "city": "Wilsonville",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03902821"
    },
    {
      "nct_id": "NCT00777062",
      "title": "VIVITROL as a Treatment for Cocaine and Alcohol Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cocaine Dependence",
        "Alcohol Dependence"
      ],
      "interventions": [
        {
          "name": "VIVITROL (Naltrexone extended-release injectable suspension)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 80,
      "start_date": "2009-07",
      "completion_date": "2013-09",
      "has_results": true,
      "last_update_posted_date": "2018-01-26",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00777062"
    },
    {
      "nct_id": "NCT01556425",
      "title": "The Separate and Combined Effects of Vivitrol and Opiate Abstinence Reinforcement in the Treatment of Opioid Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Dependence"
      ],
      "interventions": [
        {
          "name": "Vivitrol",
          "type": "DRUG"
        },
        {
          "name": "Employment-based opiate abstinence reinforcement",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "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": 84,
      "start_date": "2012-05",
      "completion_date": "2017-08-06",
      "has_results": true,
      "last_update_posted_date": "2018-03-12",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01556425"
    },
    {
      "nct_id": "NCT06090461",
      "title": "Real-World Evidence on the Cardiovascular Safety of CONTRAVE® in the United States (U.S.)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Currax Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 31889,
      "start_date": "2014-09",
      "completion_date": "2022-12",
      "has_results": true,
      "last_update_posted_date": "2025-06-25",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Brentwood, Tennessee",
      "locations": [
        {
          "city": "Brentwood",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06090461"
    },
    {
      "nct_id": "NCT06374290",
      "title": "Study of Injectable Naltrexone and Oral Bupropion Among Cigarette Smokers With Schizophrenia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Naltrexone (Vivitrol)",
          "type": "DRUG"
        },
        {
          "name": "Bupropion",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2024-07-16",
      "completion_date": "2024-12-04",
      "has_results": false,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06374290"
    },
    {
      "nct_id": "NCT00781898",
      "title": "Treatment Study Using Depot Naltrexone (1/6) Philadelphia Coord/Data Mgmt Site",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Opiate Addiction"
      ],
      "interventions": [
        {
          "name": "Depot naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Treatment as Usual (TAU)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 308,
      "start_date": "2008-06",
      "completion_date": "2015-08",
      "has_results": true,
      "last_update_posted_date": "2017-10-23",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00781898"
    },
    {
      "nct_id": "NCT00511836",
      "title": "ALK21-018: Effects of Medisorb® Naltrexone (VIVITROL®) on Alcohol Craving in Treatment-seeking, Alcohol-dependent Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Alcohol Dependence"
      ],
      "interventions": [
        {
          "name": "VIVITROL 380 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alkermes, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 31,
      "start_date": "2007-07",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2017-07-11",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Belmont, Massachusetts",
      "locations": [
        {
          "city": "Belmont",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00511836"
    },
    {
      "nct_id": "NCT01822132",
      "title": "Risky Decision Making in Methamphetamine Users: The Role of Opioid Blockade",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Methamphetamine Abuse",
        "HIV"
      ],
      "interventions": [
        {
          "name": "Extended release naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 76,
      "start_date": "2013-05",
      "completion_date": "2015-03",
      "has_results": true,
      "last_update_posted_date": "2019-03-05",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 2,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01822132"
    },
    {
      "nct_id": "NCT03799198",
      "title": "Real World Effectiveness of Combining an Employer-based Weight Management Program With Medication for Chronic Weight Management in Employees With Obesity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Weight Management Program (WMP)",
          "type": "OTHER"
        },
        {
          "name": "Medication for chronic weight management (Rx)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2019-01-07",
      "completion_date": "2020-05-22",
      "has_results": true,
      "last_update_posted_date": "2022-11-14",
      "last_synced_at": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03799198"
    },
    {
      "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": "2026-09-27T01:24:33.440Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01893827"
    }
  ]
}