{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=NKTR-118",
    "query": {
      "intervention": "NKTR-118"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 29,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=NKTR-118&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T00:44:51.580Z",
  "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": "NCT02813356",
      "title": "Naloxegol US PMR CV Safety.",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Opioid Induced Constipation"
      ],
      "interventions": [
        {
          "name": "naloxegol",
          "type": "DRUG"
        },
        {
          "name": "non-PAMORA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Valinor Pharma LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 8800,
      "start_date": "2016-06-24",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-05-15",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 2,
      "location_summary": "Wilmington, Delaware • Hines, Illinois",
      "locations": [
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Hines",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02813356"
    },
    {
      "nct_id": "NCT03087708",
      "title": "Naloxegol in Treating Patients With Stage IIIB-IV Non-small Cell Lung Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage IIIB Non-Small Cell Lung Cancer",
        "Stage IV Non-small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Naloxegol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2018-03-23",
      "completion_date": "2023-04-01",
      "has_results": true,
      "last_update_posted_date": "2025-07-17",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 660,
      "location_summary": "Anchorage, Alaska • Fairbanks, Alaska • Kingman, Arizona + 407 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03087708"
    },
    {
      "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": "2026-09-05T00:44:51.580Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02737059"
    },
    {
      "nct_id": "NCT02705378",
      "title": "The Effect of Naloxegol on Refractory Constipation in the Intensive Care Unit",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Constipation",
        "Critical Illness"
      ],
      "interventions": [
        {
          "name": "Polyethylene glycol",
          "type": "DRUG"
        },
        {
          "name": "naloxegol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "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": "2017-05",
      "completion_date": "2019-12",
      "has_results": false,
      "last_update_posted_date": "2021-05-05",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02705378"
    },
    {
      "nct_id": "NCT00600119",
      "title": "A Phase 2, Double-Blind, Multiple-Dose Escalation Study to Evaluate NKTR-118 (Oral PEG-Naloxol) in Patients With Opioid-Induced Constipation (OIC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Induced Constipation (OIC)"
      ],
      "interventions": [
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "NKTR-118",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 207,
      "start_date": "2007-12",
      "completion_date": "2009-04",
      "has_results": true,
      "last_update_posted_date": "2015-06-12",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 33,
      "location_summary": "Huntsville, Alabama • Pinson, Alabama • Tucson, Arizona + 30 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Pinson",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00600119"
    },
    {
      "nct_id": "NCT03060512",
      "title": "To Evaluate Patient Preference of Movantik and Polyethylene Glycol 3350 for Opioid Induced Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid Induced Constipation"
      ],
      "interventions": [
        {
          "name": "Polyethylene Glycol 3350",
          "type": "DRUG"
        },
        {
          "name": "Movantik",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "18 Years to 84 Years"
      },
      "enrollment_count": 276,
      "start_date": "2017-03-02",
      "completion_date": "2017-08-23",
      "has_results": true,
      "last_update_posted_date": "2018-07-13",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 53,
      "location_summary": "Huntsville, Alabama • Phoenix, Arizona • Anaheim, California + 46 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03060512"
    },
    {
      "nct_id": "NCT01309841",
      "title": "Assessment of Efficacy and Safety in Patients With Non-cancer-related Pain and Opioid-induced Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Opioid-Induced Constipation (OIC)"
      ],
      "interventions": [
        {
          "name": "NKTR-118",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "18 Years to 84 Years"
      },
      "enrollment_count": 652,
      "start_date": "2011-03",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2015-06-01",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 91,
      "location_summary": "Birmingham, Alabama • Calera, Alabama • Glendale, Arizona + 88 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Calera",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01309841"
    },
    {
      "nct_id": "NCT01323790",
      "title": "Assessment of Efficacy and Safety in Patients With Non-cancer-related Pain and Opioid-induced Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Opioid-Induced Constipation (OIC)"
      ],
      "interventions": [
        {
          "name": "NKTR-118",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "18 Years to 84 Years"
      },
      "enrollment_count": 700,
      "start_date": "2011-03",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2015-06-02",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 68,
      "location_summary": "Mobile, Alabama • Pell City, Alabama • Mesa, Arizona + 65 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Pell City",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sun Lakes",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01323790"
    },
    {
      "nct_id": "NCT01520896",
      "title": "Study in Healthy Volunteers to Investigate the Effects of Ketoconazole on the Pharmacokinetics of NKTR-118",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Bioavailability",
        "Healthy Volunteers",
        "Drug- Drug Interactions"
      ],
      "interventions": [
        {
          "name": "NKTR-118",
          "type": "DRUG"
        },
        {
          "name": "Ketoconazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 22,
      "start_date": "2012-02",
      "completion_date": "2012-04",
      "has_results": false,
      "last_update_posted_date": "2014-10-15",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01520896"
    },
    {
      "nct_id": "NCT02745353",
      "title": "Naloxegol in Cancer Opioid-Induced Constipation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Constipation"
      ],
      "interventions": [
        {
          "name": "naloxegol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Joseph Ma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2016-05",
      "completion_date": "2017-06-22",
      "has_results": true,
      "last_update_posted_date": "2019-12-09",
      "last_synced_at": "2026-09-05T00:44:51.580Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02745353"
    }
  ]
}