{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Total+Knee+Arthroplasty+%28Postoperative+Pain%29&page=2",
    "query": {
      "condition": "Total Knee Arthroplasty (Postoperative Pain)",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Total+Knee+Arthroplasty+%28Postoperative+Pain%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T02:32:33.579Z",
  "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": "NCT03864588",
      "title": "Comparing Ropivacaine Adductor Canal Blockade by Surgeon Versus Anesthesiologist",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Satisfaction"
      ],
      "interventions": [
        {
          "name": "Ropivacaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rothman Institute Orthopaedics",
      "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": 164,
      "start_date": "2018-10-01",
      "completion_date": "2019-09",
      "has_results": false,
      "last_update_posted_date": "2019-03-06",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03864588"
    },
    {
      "nct_id": "NCT02579538",
      "title": "Flexibility of Cognition And Persistent Pain",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "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": 300,
      "start_date": "2015-09-01",
      "completion_date": "2018-12-01",
      "has_results": false,
      "last_update_posted_date": "2020-01-28",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02579538"
    },
    {
      "nct_id": "NCT01683071",
      "title": "Femoral Nerve Block With Liposome Bupivacaine for Postsurgical Analgesia Following Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "EXPAREL 67 mg",
          "type": "DRUG"
        },
        {
          "name": "EXPAREL 133 mg",
          "type": "DRUG"
        },
        {
          "name": "EXPAREL 266 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pacira Pharmaceuticals, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 297,
      "start_date": "2012-09",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2020-12-09",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 30,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Sheffield, Alabama + 23 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01683071"
    },
    {
      "nct_id": "NCT03434275",
      "title": "Evaluation of Preoperative N1539 in Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "N1539",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baudax Bio",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "35 Years to 80 Years"
      },
      "enrollment_count": 194,
      "start_date": "2018-02-19",
      "completion_date": "2019-05-21",
      "has_results": true,
      "last_update_posted_date": "2023-05-25",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 6,
      "location_summary": "Florence, Alabama • Mobile, Alabama • Sheffield, Alabama + 3 more",
      "locations": [
        {
          "city": "Florence",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Tamarac",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03434275"
    },
    {
      "nct_id": "NCT03245359",
      "title": "Pain Management After TKA: Comparison of Short- and Long-term Nerve Blocks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anesthesia, Local",
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Short-term ON-Q",
          "type": "DEVICE"
        },
        {
          "name": "Short-term ON-Q",
          "type": "DRUG"
        },
        {
          "name": "Long-term ON-Q",
          "type": "DEVICE"
        },
        {
          "name": "Long-term ON-Q",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "AdventHealth",
      "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": "2017-09-28",
      "completion_date": "2019-05-20",
      "has_results": false,
      "last_update_posted_date": "2019-08-02",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03245359"
    },
    {
      "nct_id": "NCT05097976",
      "title": "Medrol Dosepak for Outpatient Total Knee Arthroplasty",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Total Knee Arthroplasty"
      ],
      "interventions": [
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 420,
      "start_date": "2022-03-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "Oak Brook, Illinois",
      "locations": [
        {
          "city": "Oak Brook",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05097976"
    },
    {
      "nct_id": "NCT07464860",
      "title": "Feasibility of Breathwork Intervention With Older Adults After Knee Surgery",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Surgical Stress Response",
        "Stress Physiological",
        "Stress Physiology",
        "Stress Psychological",
        "Breathing Techniques",
        "Breathing Exercises",
        "Hypothalamic Pituitary Adrenal",
        "Relaxation",
        "Relaxation Therapy",
        "Cortisol",
        "Postoperative Pain",
        "Postoperative Anxiety",
        "Postoperative Depression",
        "Quality of Recovery (QoR-15)"
      ],
      "interventions": [
        {
          "name": "A 5-minute Asynchronous Breathwork Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "A 5-minute Asynchronous Card Game Video",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2026-07-01",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-06",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07464860"
    },
    {
      "nct_id": "NCT06619340",
      "title": "EXPAREL IPSA Block in Knee Arthroplasty",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Osteo Arthritis Knee"
      ],
      "interventions": [
        {
          "name": "Exparel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Campbell Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2024-05-20",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-01",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "Germantown, Tennessee",
      "locations": [
        {
          "city": "Germantown",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06619340"
    },
    {
      "nct_id": "NCT02166632",
      "title": "Postoperative Pain Control Results Using Periarticular Versus Intra-capsular Injection of Bupivacaine Liposome Injectable Suspension in Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Intracapsular Injection",
          "type": "PROCEDURE"
        },
        {
          "name": "Periarticular Injection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Broward Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 50,
      "start_date": "2014-04",
      "completion_date": "2016-02",
      "has_results": false,
      "last_update_posted_date": "2016-02-10",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "Fort Lauderdale, Florida",
      "locations": [
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02166632"
    },
    {
      "nct_id": "NCT01379118",
      "title": "Comparison of Clinical Outcomes and Performance of Total Knee Replacement Patients Before and After Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Degenerative Joint Disease",
        "Osteoarthritis",
        "Knee Injury, Trauma",
        "Connective Tissue Disorder",
        "Pain",
        "Loss of Function"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Loma Linda University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 50,
      "start_date": "2012-07",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-09-15",
      "last_synced_at": "2026-07-22T02:32:33.579Z",
      "location_count": 1,
      "location_summary": "San Bernardino, California",
      "locations": [
        {
          "city": "San Bernardino",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01379118"
    }
  ]
}