{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesics&page=9",
    "query": {
      "condition": "Analgesics",
      "page": 9
    },
    "page_size": 10
  },
  "pagination": {
    "page": 9,
    "page_size": 10,
    "total_count": 629,
    "total_pages": 63,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesics&page=10&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesics&page=8&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T16:17:36.435Z",
  "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": "NCT01055015",
      "title": "Double Blind Efficacy and Safety Study of Flexible-Dose vs Low-Dose Q8003 After Undergoing Primary Unilateral Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Flexible dose Q8003 (morphine sulfate and oxycodone hydrochloride)",
          "type": "DRUG"
        },
        {
          "name": "Low dose Q8003 (morphine sulfate and oxycodone hydrochloride)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "QRxPharma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 141,
      "start_date": "2010-02",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2012-05-17",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 11,
      "location_summary": "Birmingham, Alabama • Sheffield, Alabama • Phoenix, Arizona + 8 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01055015"
    },
    {
      "nct_id": "NCT02086123",
      "title": "Randomized Study Comparing the Use of Epidural Analgesia to Intravenous Narcotics for Laparoscopic Colorectal Resection.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Epidural Analgesia",
          "type": "PROCEDURE"
        },
        {
          "name": "Parenteral Analgesia (Intravenous)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 87,
      "start_date": "2012-05",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2023-08-14",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02086123"
    },
    {
      "nct_id": "NCT07504601",
      "title": "Investigating the Analgesic Potential of (2R,6R)-HNK in Acute Pain in Healthy Volunteers",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "(2R,6R)-Hydroxynorketamine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Center for Complementary and Integrative Health (NCCIH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 92,
      "start_date": "2026-10-25",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-20",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07504601"
    },
    {
      "nct_id": "NCT01708122",
      "title": "Intranasal Fentanyl as an Analgesic for Cystoscopic Procedures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Fentanyl",
          "type": "DRUG"
        },
        {
          "name": "saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lundquist Institute for Biomedical Innovation at Harbor-UCLA 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": 71,
      "start_date": "2009-05",
      "completion_date": "2014-02",
      "has_results": true,
      "last_update_posted_date": "2015-08-20",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "Torrance, California",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01708122"
    },
    {
      "nct_id": "NCT03020875",
      "title": "IV vs Oral Acetaminophen in Spine Fusion Perioperative Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multimodal Analgesic Approach"
      ],
      "interventions": [
        {
          "name": "Ofirmev",
          "type": "DRUG"
        },
        {
          "name": "Per Os Acetaminophen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 166,
      "start_date": "2017-01",
      "completion_date": "2025-02-03",
      "has_results": false,
      "last_update_posted_date": "2026-04-28",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03020875"
    },
    {
      "nct_id": "NCT00256347",
      "title": "Analgesic Tolerance to Repeated Doses of Subcutaneous Morphine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "intramuscular injections of morphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 30,
      "start_date": "2005-03",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2011-04-14",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00256347"
    },
    {
      "nct_id": "NCT03104816",
      "title": "The Effectiveness of IV/PO Acetaminophen in the Perioperative Period in Reducing Opiate Use After Lumbar Spine Fusion",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Fusion of Spine, Lumbar Region"
      ],
      "interventions": [
        {
          "name": "Acetaminophen IV Soln 10 MG/ML",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Hydromorphone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2016-10",
      "completion_date": "2017-12",
      "has_results": true,
      "last_update_posted_date": "2019-10-08",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03104816"
    },
    {
      "nct_id": "NCT05106400",
      "title": "Clinical Adhesion Study Between ZTlido 1.8% and Three Over-the-counter External Analgesic Lidocaine-containing Patches",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "ZTlido (Lidocaine Topical System) 1.8%",
          "type": "DRUG"
        },
        {
          "name": "Salonpas (Lidocaine Patch 4%)",
          "type": "DRUG"
        },
        {
          "name": "Aspercreme (Lidocaine Patch 4%)",
          "type": "DRUG"
        },
        {
          "name": "IcyHot (Lidocaine 4% + Menthol 1% Patch)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Scilex Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2021-07-01",
      "completion_date": "2021-07-21",
      "has_results": false,
      "last_update_posted_date": "2021-11-03",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "Dilworth, Minnesota",
      "locations": [
        {
          "city": "Dilworth",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05106400"
    },
    {
      "nct_id": "NCT04567784",
      "title": "Neuroimaging and CBD for Opioid Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heroin Abuse",
        "Opioid Use Disorder",
        "Substance-Related Disorders",
        "Opioid-Related Disorders"
      ],
      "interventions": [
        {
          "name": "Cannabidiol (CBD)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yasmin Hurd",
      "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": 66,
      "start_date": "2020-11-12",
      "completion_date": "2025-06-18",
      "has_results": false,
      "last_update_posted_date": "2025-10-27",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04567784"
    },
    {
      "nct_id": "NCT05463367",
      "title": "Project 1 Aim 2, Adaptations of the Brain in Chronic Pain With Opioid Exposure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Use",
        "Opioid Dependence",
        "Opioid-use Disorder",
        "Narcotic Use",
        "Back Pain",
        "Back Injuries",
        "Chronic Pain",
        "Chronic Low-back Pain",
        "Pain, Chronic",
        "Pain;Back Low;Chronic",
        "Pain, Back"
      ],
      "interventions": [
        {
          "name": "Carbidopa-Levodopa 25 Mg-100 Mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Naproxen 500 Mg",
          "type": "DRUG"
        },
        {
          "name": "Opioids",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-01-01",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-10-20T16:17:36.435Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05463367"
    }
  ]
}