{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Rheumatoid+Arthritis+of+Ankle",
    "query": {
      "condition": "Rheumatoid Arthritis of Ankle"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T08:38:26.773Z",
  "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": "NCT01288586",
      "title": "Post-Approval Study to Investigate the Long Term (8 Year) Survivorship of STAR Ankle Among Continued Access Study Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Arthrosis"
      ],
      "interventions": [
        {
          "name": "Scandinavian Total Ankle Replacement System (STAR Ankle)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stryker Trauma and Extremities",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 87,
      "start_date": "2009-10-05",
      "completion_date": "2016-11-14",
      "has_results": false,
      "last_update_posted_date": "2017-03-27",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 5,
      "location_summary": "Oakland, California • Temple Terrace, Florida • Boise, Idaho + 2 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Temple Terrace",
          "state": "Florida"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01288586"
    },
    {
      "nct_id": "NCT04118894",
      "title": "Wright Foot & Ankle Post-Market Observational Study",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arthritis",
        "Rheumatoid Arthritis",
        "Fracture",
        "Trauma Injury",
        "Fusion of Joint"
      ],
      "interventions": [
        {
          "name": "Foot and Ankle Devices",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stryker Trauma and Extremities",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 119,
      "start_date": "2020-01-22",
      "completion_date": "2023-07-12",
      "has_results": true,
      "last_update_posted_date": "2025-01-14",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 2,
      "location_summary": "Hamilton, New Jersey • Charlotte, North Carolina",
      "locations": [
        {
          "city": "Hamilton",
          "state": "New Jersey"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04118894"
    },
    {
      "nct_id": "NCT01284283",
      "title": "2-Year Post-Approval Study to Investigate the Scandinavian Total Ankle Replacement System (STAR) Ankle Under Actual Conditions of Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Primary Arthrosis",
        "Post Traumatic Arthritis",
        "Rheumatoid Arthritis",
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Scandinavian Total Ankle Replacement System (STAR Ankle)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Encore Medical, L.P.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 102,
      "start_date": "2009-11",
      "completion_date": "2021-03",
      "has_results": false,
      "last_update_posted_date": "2022-07-29",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 9,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Palo Alto, California + 6 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Royal Oak",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01284283"
    },
    {
      "nct_id": "NCT04238143",
      "title": "Adipose-Derived Biocellular Regenerative Therapy for Osteoarthritis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Osteo Arthritis Knee",
        "Osteo Arthritis Shoulders",
        "Osteoarthritis of Multiple Joints",
        "Osteoarthritis, Hip",
        "Osteoarthritis - Ankle/Foot"
      ],
      "interventions": [
        {
          "name": "Tissue Stromal Vascular Fraction (tSVF) Arm 1",
          "type": "PROCEDURE"
        },
        {
          "name": "PRP Concentrate Arm 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tissue Stromal Vascular Fraction (tSVF) Arm 2",
          "type": "PROCEDURE"
        },
        {
          "name": "PRP Concentrate Arm 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Cellular Stromal Vascular Fraction (cSVF) Arm 2",
          "type": "PROCEDURE"
        },
        {
          "name": "Cellular Stromal Vascular Fraction (cSVF) Arm 3",
          "type": "PROCEDURE"
        },
        {
          "name": "Sterile Normal Saline (IV Solution)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Healeon Medical Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 100,
      "start_date": "2020-01-10",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-10-01",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 2,
      "location_summary": "Valencia, California • Stevensville, Montana",
      "locations": [
        {
          "city": "Valencia",
          "state": "California"
        },
        {
          "city": "Stevensville",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04238143"
    },
    {
      "nct_id": "NCT05619588",
      "title": "Exactech Vantage Total Ankle System Post Market Clinical Follow-Up - US Only",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ankle Rheumatoid Arthritis",
        "Arthritis of Ankle",
        "Failure, Prosthesis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Exactech",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 370,
      "start_date": "2017-04-04",
      "completion_date": "2031-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-02-27",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 2,
      "location_summary": "Jacksonville, Florida • Durham, North Carolina",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05619588"
    },
    {
      "nct_id": "NCT02038140",
      "title": "Zimmer Trabecular Metal Total Ankle PMCF",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Degenerative Arthritis",
        "Rheumatoid Arthritis",
        "Post Traumatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Zimmer Trabecular Metal Total Ankle System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zimmer Biomet",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2014-03",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 5,
      "location_summary": "Sacramento, California • Grand Rapids, Michigan • Charlotte, North Carolina + 2 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02038140"
    },
    {
      "nct_id": "NCT01366872",
      "title": "Agility LP Ankle Arthroplasty Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rheumatoid Arthritis of Ankle",
        "Osteoarthritis of Ankle",
        "Traumatic Arthritis of Ankle"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Orthopaedic Associates of Michigan, PC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2010-12",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2012-12-20",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 1,
      "location_summary": "Grand Rapids, Michigan",
      "locations": [
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01366872"
    },
    {
      "nct_id": "NCT00586781",
      "title": "Study of the Scandinavian Total Ankle Replacement (STAR) for the Treatment of Bilateral Degenerative Ankle Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis",
        "Post-Traumatic Arthritis",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "Scandinavian Total Ankle Replacement (STAR)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Link America, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2001-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2008-01-04",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 5,
      "location_summary": "Jacksonville, Florida • Iowa City, Iowa • Kansas City, Kansas + 2 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00586781"
    },
    {
      "nct_id": "NCT03142958",
      "title": "Clinical Evaluation of Integra® Cadence™ Total Ankle System in Primary Ankle Joint Replacement (CADENCE)",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rheumatoid Arthritis",
        "Degenerative Arthritis",
        "Post Traumatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Integra Cadence Total Ankle System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Smith & Nephew, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 132,
      "start_date": "2017-08-24",
      "completion_date": "2025-04-30",
      "has_results": false,
      "last_update_posted_date": "2024-11-12",
      "last_synced_at": "2026-07-22T08:38:26.773Z",
      "location_count": 9,
      "location_summary": "San Francisco, California • Sarasota, Florida • Buffalo, New York + 5 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Westerville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03142958"
    }
  ]
}