{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Rheumatoid+Arthritis+of+Knee&page=2",
    "query": {
      "condition": "Rheumatoid Arthritis of Knee",
      "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=Rheumatoid+Arthritis+of+Knee&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T20:06:47.958Z",
  "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": "NCT03292003",
      "title": "Journey II Bi-Cruciate Stabilized (BCS) Total Knee System Retrospective Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Total Knee Arthroplasty"
      ],
      "interventions": [
        {
          "name": "Journey II BCS Total Knee System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Smith & Nephew, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1694,
      "start_date": "2016-12-30",
      "completion_date": "2018-09-24",
      "has_results": false,
      "last_update_posted_date": "2019-03-28",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 9,
      "location_summary": "Aurora, Colorado • Gulf Breeze, Florida • Indianapolis, Indiana + 6 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gulf Breeze",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "State College",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03292003"
    },
    {
      "nct_id": "NCT00487565",
      "title": "Clinical Investigation of the LCS® Complete Posterior Stabilized Mobile-bearing Total Knee System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Post-traumatic Arthritis",
        "Juvenile Arthritis"
      ],
      "interventions": [
        {
          "name": "Total knee arthroplasty",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "DePuy Orthopaedics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 210,
      "start_date": "2006-09",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2013-08-14",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 3,
      "location_summary": "Denver, Colorado • Pittsburgh, Pennsylvania • Virginia Beach, Virginia",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Virginia Beach",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00487565"
    },
    {
      "nct_id": "NCT00588887",
      "title": "Total Knee Replacement With Duracon® and Vanguard™ Prostheses",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Degenerative Arthritis",
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Knee Arthritis"
      ],
      "interventions": [
        {
          "name": "Duracon®",
          "type": "DEVICE"
        },
        {
          "name": "Vanguard™",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Biomet Orthopedics, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2005-06",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2017-06-21",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 1,
      "location_summary": "Warsaw, Indiana",
      "locations": [
        {
          "city": "Warsaw",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00588887"
    },
    {
      "nct_id": "NCT05197036",
      "title": "A Global Clinical Study Investigating the Safety and Effectiveness of Smith and Nephew's Porous Knee System in Patients Who Need a Total Knee Replacement Due to Degenerative Arthritis, Post-traumatic Arthritis or Inflammatory Arthritis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis",
        "Post-traumatic Arthritis",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "Total Knee Arthroplasty",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Smith & Nephew, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 299,
      "start_date": "2021-12-21",
      "completion_date": "2033-12-25",
      "has_results": false,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 12,
      "location_summary": "Atlanta, Georgia • Boston, Massachusetts • Novi, Michigan + 8 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Novi",
          "state": "Michigan"
        },
        {
          "city": "East Syracuse",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05197036"
    },
    {
      "nct_id": "NCT03969654",
      "title": "ROSA Robot Used in Total Knee Replacement Post Market Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Pain",
        "Chronic Osteoarthritis",
        "Avascular Necrosis of the Femoral Condyle",
        "Moderate Varus, Valgus or Flexion Deformities",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "PERSONA Total Knee",
          "type": "DEVICE"
        },
        {
          "name": "Vanguard Total Knee",
          "type": "DEVICE"
        },
        {
          "name": "NexGen Total Knee",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zimmer Biomet",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 181,
      "start_date": "2020-05-01",
      "completion_date": "2023-09-22",
      "has_results": true,
      "last_update_posted_date": "2024-05-03",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 5,
      "location_summary": "Vail, Colorado • Westminster, Colorado • Springfield, Illinois + 2 more",
      "locations": [
        {
          "city": "Vail",
          "state": "Colorado"
        },
        {
          "city": "Westminster",
          "state": "Colorado"
        },
        {
          "city": "Springfield",
          "state": "Illinois"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "North Chesterfield",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03969654"
    },
    {
      "nct_id": "NCT04910048",
      "title": "Impact of a POPOP on Preoperative Health, Eligibility, and Clinical & Patient-Reported Outcomes in TJA",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee",
        "Osteoarthritis, Hip",
        "Avascular Necrosis",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "POPOP (preoperative patient optimization program)",
          "type": "OTHER"
        },
        {
          "name": "SOC (standard of care)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arkansas",
      "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": 46,
      "start_date": "2022-01-17",
      "completion_date": "2024-09-03",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04910048"
    },
    {
      "nct_id": "NCT00764803",
      "title": "3DKnee™ System vs. the MJS Knee System",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rheumatoid Arthritis",
        "Traumatic Arthritis",
        "Joint Disease Secondary to Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Encore 3DKnee™ system",
          "type": "DEVICE"
        },
        {
          "name": "Encore MJS™ Knee System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Encore Medical, L.P.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2008-01",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2010-03-11",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 1,
      "location_summary": "Fresno, California",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00764803"
    },
    {
      "nct_id": "NCT07391592",
      "title": "Post Market Clinical Follow-Up Study for EVOLUTION® NitrX™ Keeled Tibia and EVOLUTION® NitrX™ CS/CR Femur With Cruciate Sacrificing Insert",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthitis",
        "Arthritis Knee",
        "Joint Diseases",
        "Avascular Necrosis",
        "Rheumatoid Arthritis of Knee"
      ],
      "interventions": [
        {
          "name": "EVOLUTION® NitrX™",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "MicroPort Orthopedics Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2025-08-18",
      "completion_date": "2032-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-06",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 1,
      "location_summary": "Fremont, California",
      "locations": [
        {
          "city": "Fremont",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07391592"
    },
    {
      "nct_id": "NCT00000416",
      "title": "Prevention of Arthritis-Related Work Disability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rheumatoid Arthritis",
        "Systemic Lupus Erythematosus",
        "Osteoarthritis, Knee",
        "Ankylosing Spondylitis"
      ],
      "interventions": [
        {
          "name": "Rehabilitation counseling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston University Charles River Campus",
      "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": 242,
      "start_date": "1997-09",
      "completion_date": "2001-08",
      "has_results": false,
      "last_update_posted_date": "2017-07-26",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000416"
    },
    {
      "nct_id": "NCT00289081",
      "title": "Primary TKA Cruciate Retaining vs Cruciate Substituting With Rotating Platform Knee Prostheses",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Arthritis, Rheumatoid",
        "Avascular Necrosis of Bone",
        "Post-traumatic Arthritis",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "Total knee replacement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "DePuy Orthopaedics",
      "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": 399,
      "start_date": "2001-02",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2014-05-13",
      "last_synced_at": "2026-06-10T20:06:47.958Z",
      "location_count": 4,
      "location_summary": "La Jolla, California • Crystal River, Florida • Melbourne, Florida + 1 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Crystal River",
          "state": "Florida"
        },
        {
          "city": "Melbourne",
          "state": "Florida"
        },
        {
          "city": "Cleveland Heights",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00289081"
    }
  ]
}