{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesic%2C+Opioid&page=6",
    "query": {
      "condition": "Analgesic, Opioid",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 198,
    "total_pages": 20,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesic%2C+Opioid&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesic%2C+Opioid&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T11:45:41.736Z",
  "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": "NCT03469310",
      "title": "Minimizing Narcotic Analgesics After Endocrine Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Thyroid Cancer",
        "Thyroid Nodule",
        "Thyroid Neoplasms",
        "Thyroid Goitre",
        "Thyroid Diseases",
        "Parathyroid Diseases",
        "Parathyroid Adenoma",
        "Parathyroid Hyperplasia"
      ],
      "interventions": [
        {
          "name": "Acetaminophen 500Mg Cap",
          "type": "DRUG"
        },
        {
          "name": "Tylenol #3 Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Tramadol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Minerva A Romero Arenas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 126,
      "start_date": "2018-03-09",
      "completion_date": "2020-10-02",
      "has_results": false,
      "last_update_posted_date": "2021-05-11",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 1,
      "location_summary": "Edinburg, Texas",
      "locations": [
        {
          "city": "Edinburg",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03469310"
    },
    {
      "nct_id": "NCT00275249",
      "title": "Evolution of Analgesic Tolerance With Opioids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "levorphanol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 60,
      "start_date": "2001-03",
      "completion_date": "2005-12",
      "has_results": false,
      "last_update_posted_date": "2011-04-14",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00275249"
    },
    {
      "nct_id": "NCT02313675",
      "title": "Pain Outcomes of Intra-operative IV Tylenol and/or IV Toradol for Carpal Tunnel and Distal Radius Fracture Surgeries",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Postoperative Pain",
        "Carpal Tunnel Release",
        "Distal Radius Fracture"
      ],
      "interventions": [
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Ketorolac Tromethamine",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "John Fowler",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2015-05",
      "completion_date": "2017-05-01",
      "has_results": true,
      "last_update_posted_date": "2018-05-04",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02313675"
    },
    {
      "nct_id": "NCT00716807",
      "title": "Efficacy of Nalbuphine and Naloxone Administered as Nose Sprays in the Treatment of Orofacial Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Temporomandibular Joint Dysfunction Syndrome",
        "Burning Mouth Syndrome"
      ],
      "interventions": [
        {
          "name": "nalbuphine plus naloxone",
          "type": "DRUG"
        },
        {
          "name": "nalbuphine plus placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2008-01",
      "completion_date": "2010-06",
      "has_results": true,
      "last_update_posted_date": "2016-05-20",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00716807"
    },
    {
      "nct_id": "NCT03308188",
      "title": "EMPOWER: Randomized Trial of Online Chronic Pain Management Program to Reduce Reliance on Opioid Analgesic Medications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "E-health program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "25 Years to 80 Years"
      },
      "enrollment_count": 402,
      "start_date": "2018-02-05",
      "completion_date": "2021-10-31",
      "has_results": true,
      "last_update_posted_date": "2023-09-28",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03308188"
    },
    {
      "nct_id": "NCT03429049",
      "title": "A Phase 3 Efficacy and Safety Study of Intra-articular CNTX-4975-05 (Capsaicin) vs Placebo in Subjects With OA Knee Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "CNTX-4975-05",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Centrexion Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "40 Years to 95 Years"
      },
      "enrollment_count": 332,
      "start_date": "2018-01-24",
      "completion_date": "2019-11-22",
      "has_results": true,
      "last_update_posted_date": "2022-07-26",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 33,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 28 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03429049"
    },
    {
      "nct_id": "NCT03907176",
      "title": "Study of Post-Herniorrhaphy Non-opioid MMA Regimens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Analgesia"
      ],
      "interventions": [
        {
          "name": "HTX-011",
          "type": "DRUG"
        },
        {
          "name": "Luer lock applicator",
          "type": "DEVICE"
        },
        {
          "name": "Ibuprofen",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Heron Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 209,
      "start_date": "2019-04-04",
      "completion_date": "2021-11-22",
      "has_results": true,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 30,
      "location_summary": "Anaheim, California • La Mesa, California • Orange, California + 22 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Riverside",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03907176"
    },
    {
      "nct_id": "NCT02040077",
      "title": "Evaluation of a Computerized Opioid Overdose Prevention Program",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Computer + Fluency",
        "Computer Only",
        "Treatment as Usual"
      ],
      "interventions": [
        {
          "name": "Computer + Fluency",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Computer Only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Treatment as Usual",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2015-01",
      "completion_date": "2015-09",
      "has_results": true,
      "last_update_posted_date": "2017-11-17",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02040077"
    },
    {
      "nct_id": "NCT00101998",
      "title": "Study Of Alvimopan Drug For Treatment Of Constipation Due To Prescription Pain Medication",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Constipation",
        "Bowel Dysfunction"
      ],
      "interventions": [
        {
          "name": "alvimopan",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 233,
      "start_date": "2003-10-01",
      "completion_date": "2006-05-01",
      "has_results": false,
      "last_update_posted_date": "2017-08-30",
      "last_synced_at": "2026-10-13T11:45:41.736Z",
      "location_count": 69,
      "location_summary": "Tucson, Arizona • Hot Springs, Arkansas • Duarte, California + 58 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00101998"
    },
    {
      "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": "2026-10-13T11:45:41.736Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01004393"
    }
  ]
}