{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Arthritis%2C+Failure+of+Total+Hip",
    "query": {
      "condition": "Arthritis, Failure of Total Hip"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 2,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T23:01:13.748Z",
  "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": "NCT01668160",
      "title": "Stability of Revision Total Hip Arthroplasty Implants Using Radiostereometric Analysis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis of Hip",
        "Failure of Primary THA"
      ],
      "interventions": [
        {
          "name": "Bead placement during revision hip replacement surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "25 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": "2012-02",
      "completion_date": "2020-01",
      "has_results": false,
      "last_update_posted_date": "2013-11-05",
      "last_synced_at": "2026-07-22T23:01:13.748Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01668160"
    },
    {
      "nct_id": "NCT02208271",
      "title": "A Validated Necrosis Assay to Determine the Need for Revision Surgery in Metal-on-metal Total Hip Arthroplasty",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arthritis, Failure of Total Hip"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "OrthoCarolina Research Institute, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 174,
      "start_date": "2014-08-04",
      "completion_date": "2020-08-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-07-22T23:01:13.748Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02208271"
    }
  ]
}