{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesic+Efficacy&page=7",
    "query": {
      "condition": "Analgesic Efficacy",
      "page": 7
    },
    "page_size": 10
  },
  "pagination": {
    "page": 7,
    "page_size": 10,
    "total_count": 247,
    "total_pages": 25,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesic+Efficacy&page=8&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Analgesic+Efficacy&page=6&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-11T17:27:04.544Z",
  "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": "NCT01058642",
      "title": "Study to Assess the Efficacy, Safety, and Tolerability of ADL5747 in Participants With Postherpetic Neuralgia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postherpetic Neuralgia"
      ],
      "interventions": [
        {
          "name": "ADL5747",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Pregabalin",
          "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": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 41,
      "start_date": "2010-01",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2015-07-30",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 1,
      "location_summary": "West Palm Beach, Florida",
      "locations": [
        {
          "city": "West Palm Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01058642"
    },
    {
      "nct_id": "NCT01075243",
      "title": "Post-operative Dental Pain Study Comparing Two Different Dosage of Analgesic Efficacy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Post-surgical Dental Pain"
      ],
      "interventions": [
        {
          "name": "Paracetamol 1000 mg",
          "type": "DRUG"
        },
        {
          "name": "Paracetamol 650 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 401,
      "start_date": "2009-11",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2015-04-29",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01075243"
    },
    {
      "nct_id": "NCT01207115",
      "title": "A Study of ABT-652 in Adults With Osteoarthritis Pain of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteoarthritis of the Knee"
      ],
      "interventions": [
        {
          "name": "ABT-652",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Naproxen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie (prior sponsor, Abbott)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 322,
      "start_date": "2010-09",
      "completion_date": "2011-05",
      "has_results": false,
      "last_update_posted_date": "2013-01-07",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 23,
      "location_summary": "Chandler, Arizona • Tempe, Arizona • Tucson, Arizona + 20 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Burbank",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01207115"
    },
    {
      "nct_id": "NCT01770314",
      "title": "Study to Test the Efficacy of Online Education to Increase Safe Use of Opioid Medication.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Medication Adherence"
      ],
      "interventions": [
        {
          "name": "Experimental",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Inflexxion, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 176,
      "start_date": "2012-09",
      "completion_date": "2013-09",
      "has_results": true,
      "last_update_posted_date": "2014-05-19",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 1,
      "location_summary": "Newton, Massachusetts",
      "locations": [
        {
          "city": "Newton",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01770314"
    },
    {
      "nct_id": "NCT00505414",
      "title": "A Study to Evaluate the Effectiveness and Safety of CG5503 (Tapentadol) in the Treatment of Chronic Tumor Related Pain Compared With Placebo and Morphine",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain",
        "Neoplasm",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Tapentadol in the Titration Phase",
          "type": "DRUG"
        },
        {
          "name": "Morphine in the Maintenance Phase",
          "type": "DRUG"
        },
        {
          "name": "Matching Placebo in the Maintenance Phase after Tapentadol in the Titration Phase",
          "type": "DRUG"
        },
        {
          "name": "Tapentadol in the Maintenance Phase",
          "type": "DRUG"
        },
        {
          "name": "Morphine in the Titration Phase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Grünenthal GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 136,
      "start_date": "2007-06",
      "completion_date": "2009-05",
      "has_results": true,
      "last_update_posted_date": "2019-11-01",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 7,
      "location_summary": "St. Petersburg, Florida • Elkhart, Indiana • Shreveport, Louisiana + 4 more",
      "locations": [
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Elkhart",
          "state": "Indiana"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        },
        {
          "city": "Cedarhurst",
          "state": "New York"
        },
        {
          "city": "Glens Falls",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00505414"
    },
    {
      "nct_id": "NCT01861821",
      "title": "Analgesic Efficacy of a Multiport Versus Uniport Flexible Catheter for Labor Epidural Analgesia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Labor Pain"
      ],
      "interventions": [
        {
          "name": "Multiport flexible catheter",
          "type": "DEVICE"
        },
        {
          "name": "Uniport flexible catheter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Baylor Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 650,
      "start_date": "2011-11",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2025-10-07",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01861821"
    },
    {
      "nct_id": "NCT04033562",
      "title": "The Analgesic Efficacy of Continuous Sub-fascial Bupivacaine Infusion and Lidocaine Patches in Post-cesarean Patients With Opiate Use Disorder: A Comparative Efficacy Analysis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid-use Disorder",
        "Opioid Use",
        "Opioid Dependence",
        "Opioid Abuse",
        "Medication Assisted Treatment",
        "Infusion Catheter, Wound",
        "Lidopatch",
        "Ambu ACTion",
        "Pregnancy Related",
        "Cesarean Section"
      ],
      "interventions": [
        {
          "name": "Lidocaine patch",
          "type": "DRUG"
        },
        {
          "name": "Ambu ACTion pump, 0.125% bupivacaine at 8cc/hr",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "WellSpan Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 100 Years · Female only"
      },
      "enrollment_count": 2,
      "start_date": "2020-01-15",
      "completion_date": "2021-05-17",
      "has_results": false,
      "last_update_posted_date": "2021-06-07",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 1,
      "location_summary": "York, Pennsylvania",
      "locations": [
        {
          "city": "York",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04033562"
    },
    {
      "nct_id": "NCT00993863",
      "title": "Analgesic Efficacy and Safety of ADL5859 in Subjects With Acute Dental Pain After Third Molar Extraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Pain"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "ADL5859 30 mg",
          "type": "DRUG"
        },
        {
          "name": "ADL5859 100 mg",
          "type": "DRUG"
        },
        {
          "name": "ADL5859 200 mg",
          "type": "DRUG"
        },
        {
          "name": "ibuprofen 400 mg",
          "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": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 201,
      "start_date": "2007-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-07-17",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00993863"
    },
    {
      "nct_id": "NCT02528253",
      "title": "A Phase 3 Study of Tanezumab for Chronic Low Back Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Placebo to Week 16; tanezumab 5mg SC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo to Week 16, tanezumab 10 mg SC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tanezumab 5 mg SC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tanezumab 10 mg SC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tramadol PR oral",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1832,
      "start_date": "2015-08-18",
      "completion_date": "2018-12-20",
      "has_results": true,
      "last_update_posted_date": "2020-02-21",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 179,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Saraland, Alabama + 124 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02528253"
    },
    {
      "nct_id": "NCT00818493",
      "title": "Pilot Study of the Efficacy and Safety of Q8003 in Patients Who Have Undergone Total Knee Arthroplasty or Total Hip Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Q8003 (morphine sulfate and oxycodone hydrochloride)",
          "type": "DRUG"
        },
        {
          "name": "Low dose Q8003 (morphine sulfate and oxycodone hydrochloride)",
          "type": "DRUG"
        },
        {
          "name": "Percocet (oxycodone and acetaminophen)",
          "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": 44,
      "start_date": "2009-02",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2012-05-17",
      "last_synced_at": "2026-10-11T17:27:04.544Z",
      "location_count": 4,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Royal Oak, Michigan + 1 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Royal Oak",
          "state": "Michigan"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00818493"
    }
  ]
}