{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Methylnaltrexone+%28MNTX%29",
    "query": {
      "intervention": "Methylnaltrexone (MNTX)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 45,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Methylnaltrexone+%28MNTX%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T03:22:41.800Z",
  "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": "NCT01050595",
      "title": "Methylnaltrexone for Treatment of Opiate-Induced Constipation in the Intensive Care Unit",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Opioid-induced Constipation"
      ],
      "interventions": [
        {
          "name": "Methylnaltrexone Bromide",
          "type": "DRUG"
        },
        {
          "name": "Placebo-Normal Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "St. John Health System, Michigan",
      "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": "2009-12",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2010-01-15",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Southfield, Michigan",
      "locations": [
        {
          "city": "Southfield",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01050595"
    },
    {
      "nct_id": "NCT02403830",
      "title": "Effect of Methylnaltrexone on the PK/PD Profiles of Ticagrelor in Patients Treated With Morphine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "Methylnaltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Morphine",
          "type": "DRUG"
        },
        {
          "name": "Ticagrelor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "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": 30,
      "start_date": "2015-08",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2017-05-30",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02403830"
    },
    {
      "nct_id": "NCT01360372",
      "title": "Effect of Methylnaltrexone (Relistor) on Digestion and Tolerance to Tube Feeding in Patients Treated With Opiates",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Tube Feeding"
      ],
      "interventions": [
        {
          "name": "Methylnaltrexone",
          "type": "DRUG"
        },
        {
          "name": "Saline injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Drexel University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2010-10",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2015-03-17",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01360372"
    },
    {
      "nct_id": "NCT00858754",
      "title": "Study Evaluating Safety & Efficacy of Subcutaneous Methylnaltrexone on Opioid-Induced Constipation in Cancer Subjects",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid-Induced Constipation"
      ],
      "interventions": [
        {
          "name": "methylnaltrexone",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 0,
      "start_date": "2009-03",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2019-11-29",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 4,
      "location_summary": "Laguna Hills, California • Lancaster, California • Flat Rock, North Carolina + 1 more",
      "locations": [
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        },
        {
          "city": "Flat Rock",
          "state": "North Carolina"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00858754"
    },
    {
      "nct_id": "NCT01004393",
      "title": "Methylnaltrexone for Opioid-induced Constipation in Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neoplasms",
        "Constipation",
        "Opioid-Related Disorders"
      ],
      "interventions": [
        {
          "name": "Methylnaltrexone bromide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2009-10",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2016-02-02",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01004393"
    },
    {
      "nct_id": "NCT01368562",
      "title": "Compassionate Use Study of Methylnaltrexone",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid-induced Constipation"
      ],
      "interventions": [
        {
          "name": "Methylnaltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2003-01-24",
      "completion_date": "2008-06-02",
      "has_results": true,
      "last_update_posted_date": "2019-09-04",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Tarrytown, New York",
      "locations": [
        {
          "city": "Tarrytown",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01368562"
    },
    {
      "nct_id": "NCT01367548",
      "title": "Intravenous (IV) Methylnaltrexone (MNTX) in the Prevention of Post-Operative Ileus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Ileus"
      ],
      "interventions": [
        {
          "name": "IV Methylnaltrexone (MNTX)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2003-07",
      "completion_date": "2004-12",
      "has_results": false,
      "last_update_posted_date": "2019-11-27",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Tarrytown, New York",
      "locations": [
        {
          "city": "Tarrytown",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01367548"
    },
    {
      "nct_id": "NCT01367574",
      "title": "Methylnaltrexone in Patients With Opioid-Induced Bowel Dysfunction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Bowel Dysfunction"
      ],
      "interventions": [
        {
          "name": "SC MNTX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 39,
      "start_date": "2002-04",
      "completion_date": "2003-05",
      "has_results": false,
      "last_update_posted_date": "2019-11-27",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Tarrytown, New York",
      "locations": [
        {
          "city": "Tarrytown",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01367574"
    },
    {
      "nct_id": "NCT02977286",
      "title": "Naloxegol to Prevent Lower Gastrointestinal Paralysis in Critically Ill Adults Administered Opioids",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Constipation"
      ],
      "interventions": [
        {
          "name": "Naloxegol Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Docusate Sodium 100 Mg oral capsule [Colace]",
          "type": "DRUG"
        },
        {
          "name": "Senna 217 Mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Polyethylene Glycols",
          "type": "DRUG"
        },
        {
          "name": "Bisacodyl 10 mg Suppository",
          "type": "DRUG"
        },
        {
          "name": "Magnesium Citrate Oral Liquid Product",
          "type": "DRUG"
        },
        {
          "name": "Methylnaltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tufts 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": 12,
      "start_date": "2017-01-01",
      "completion_date": "2019-10-09",
      "has_results": true,
      "last_update_posted_date": "2023-02-16",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02977286"
    },
    {
      "nct_id": "NCT01367483",
      "title": "Study of the Pharmacokinetics of Intravenous Administered 14C-MNTX",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Male Volunteers"
      ],
      "interventions": [
        {
          "name": "IV methylnaltrexone (MNTX)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "MALE",
        "summary": "18 Years to 45 Years · Male only"
      },
      "enrollment_count": 6,
      "start_date": "2005-06",
      "completion_date": "2005-06",
      "has_results": false,
      "last_update_posted_date": "2019-11-27",
      "last_synced_at": "2026-09-27T03:22:41.800Z",
      "location_count": 1,
      "location_summary": "Tarrytown, New York",
      "locations": [
        {
          "city": "Tarrytown",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01367483"
    }
  ]
}