{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Osteoarthritis%2C+Knee&page=22",
    "query": {
      "condition": "Osteoarthritis, Knee",
      "page": 22
    },
    "page_size": 10
  },
  "pagination": {
    "page": 22,
    "page_size": 10,
    "total_count": 1212,
    "total_pages": 122,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Osteoarthritis%2C+Knee&page=23&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Osteoarthritis%2C+Knee&page=21&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-15T11:50:46.819Z",
  "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": "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": "2026-10-15T11:50:46.819Z",
      "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": "NCT02003443",
      "title": "Acupressure for Knee Pain in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Self-Administered Acupressure",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2013-08",
      "completion_date": "2015-02",
      "has_results": false,
      "last_update_posted_date": "2022-06-14",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02003443"
    },
    {
      "nct_id": "NCT01329406",
      "title": "Study to Evaluate the Efficacy of Milnacipran in the Treatment of Pain Due to Osteoarthritis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Milnacipran",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Analgesic Solutions",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 50,
      "start_date": "2011-07",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2011-08-17",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 1,
      "location_summary": "Natick, Massachusetts",
      "locations": [
        {
          "city": "Natick",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01329406"
    },
    {
      "nct_id": "NCT01492257",
      "title": "Shared Decision Making in Patients With Osteoarthritis of the Hip and Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hip Osteoarthritis",
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Shared Decision Making Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 120,
      "start_date": "2011-07",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2012-12-13",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 2,
      "location_summary": "Redwood City, California • San Francisco, California",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01492257"
    },
    {
      "nct_id": "NCT02574312",
      "title": "ATTUNE Single-Use Instrumentation vs. ATTUNE Reusable Instrumentation in Primary Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Post-traumatic Arthritis"
      ],
      "interventions": [
        {
          "name": "ATTUNE TKA with ATTUNE RUI",
          "type": "DEVICE"
        },
        {
          "name": "ATTUNE TKA with ATTUNE SUI",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "DePuy Orthopaedics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "22 Years to 80 Years"
      },
      "enrollment_count": 88,
      "start_date": "2015-10-01",
      "completion_date": "2019-03-28",
      "has_results": true,
      "last_update_posted_date": "2020-04-09",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 2,
      "location_summary": "La Jolla, California • Wilkes-Barre, Pennsylvania",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Wilkes-Barre",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02574312"
    },
    {
      "nct_id": "NCT01861028",
      "title": "Study Comparing Fit of the iTotal Versus Standard Total Knee Implants",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Restor3D",
      "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": "2013-02",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2023-10-25",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 1,
      "location_summary": "Atlantis, Florida",
      "locations": [
        {
          "city": "Atlantis",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01861028"
    },
    {
      "nct_id": "NCT02219087",
      "title": "Liposomal Bupivacaine Versus Standard of Care in Total Knee Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Liposomal bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Standard of Care",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "OhioHealth",
      "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": "2014-08",
      "completion_date": "2016-03",
      "has_results": true,
      "last_update_posted_date": "2018-01-02",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02219087"
    },
    {
      "nct_id": "NCT04222140",
      "title": "Early Regenerative Intervention for Post-Traumatic Osteoarthritis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post-Traumatic Osteoarthritis of Knee"
      ],
      "interventions": [
        {
          "name": "ERIPTO Protocol",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "BMAC Only",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT",
        "BIOLOGICAL"
      ],
      "sponsor": "Affinity Health Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "25 Years to 60 Years"
      },
      "enrollment_count": 40,
      "start_date": "2020-08-01",
      "completion_date": "2021-09-01",
      "has_results": false,
      "last_update_posted_date": "2020-01-09",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 3,
      "location_summary": "Aurora, Illinois • Oak Brook, Illinois",
      "locations": [
        {
          "city": "Aurora",
          "state": "Illinois"
        },
        {
          "city": "Oak Brook",
          "state": "Illinois"
        },
        {
          "city": "Oak Brook",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04222140"
    },
    {
      "nct_id": "NCT00988091",
      "title": "Investigation of 1.2% Sodium Hyaluronate for Treatment of Painful Chronic Osteoarthritis of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis of the Knee"
      ],
      "interventions": [
        {
          "name": "1.2% Sodium Hyaluronate",
          "type": "DEVICE"
        },
        {
          "name": "Buffered Saline",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ferring Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 596,
      "start_date": "2009-09",
      "completion_date": "2011-04",
      "has_results": true,
      "last_update_posted_date": "2012-06-15",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 34,
      "location_summary": "Homewood, Alabama • Tucson, Arizona • Hot Springs, Arkansas + 30 more",
      "locations": [
        {
          "city": "Homewood",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Buena Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00988091"
    },
    {
      "nct_id": "NCT07308873",
      "title": "Individual Differences in Gait and Osteoarthritis Pain",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Knee Osteoarthritis (OA)",
        "Chronic Pain",
        "Chronic Knee Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "45 Years to 80 Years"
      },
      "enrollment_count": 300,
      "start_date": "2026-01-07",
      "completion_date": "2030-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-10-15T11:50:46.819Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07308873"
    }
  ]
}