{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Triathlon+Knee",
    "query": {
      "intervention": "Triathlon Knee"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 24,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Triathlon+Knee&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T09:09:07.681Z",
  "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": "NCT01811563",
      "title": "Total Knee Arthroplasty: Functional and Clinical Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Zimmer",
          "type": "DEVICE"
        },
        {
          "name": "Stryker",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 60,
      "start_date": "2013-02",
      "completion_date": "2016-02-26",
      "has_results": true,
      "last_update_posted_date": "2017-06-02",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01811563"
    },
    {
      "nct_id": "NCT04321356",
      "title": "Analysis of Competitive Posterior Cruciate Retaining (PCR) and Posterior Stabilized (PS) Total Knee Arthroplasty (TKA)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Knee Osteoarthritis",
        "Total Knee Arthroplasty",
        "Knee"
      ],
      "interventions": [
        {
          "name": "Triathlon PCR TKA",
          "type": "DEVICE"
        },
        {
          "name": "Triathlon PS TKA",
          "type": "DEVICE"
        },
        {
          "name": "Persona PCR TKA",
          "type": "DEVICE"
        },
        {
          "name": "Persona PS TKA",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 100,
      "start_date": "2020-02-24",
      "completion_date": "2022-05-16",
      "has_results": true,
      "last_update_posted_date": "2023-11-28",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 2,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04321356"
    },
    {
      "nct_id": "NCT02373761",
      "title": "A Prospective Radiostereometric Analysis (RSA) and Clinical Evaluation of the Triathlon Tritanium Total Knee Replacement",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis of the Knee"
      ],
      "interventions": [
        {
          "name": "Stryker Triathlon Tritanium primary knee",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Scott Sporer",
      "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": 27,
      "start_date": "2015-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-02-27",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 1,
      "location_summary": "Winfield, Illinois",
      "locations": [
        {
          "city": "Winfield",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02373761"
    },
    {
      "nct_id": "NCT02155712",
      "title": "Triathlon Tritanium Knee Outcomes Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arthroplasty, Replacement, Knee"
      ],
      "interventions": [
        {
          "name": "Triathlon Tritanium Knee",
          "type": "DEVICE"
        },
        {
          "name": "Triathlon Knee",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stryker 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": 680,
      "start_date": "2014-10",
      "completion_date": "2023-03-11",
      "has_results": true,
      "last_update_posted_date": "2023-11-14",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 10,
      "location_summary": "Gilbert, Arizona • Tucson, Arizona • Jacksonville, Florida + 7 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Lake Charles",
          "state": "Louisiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02155712"
    },
    {
      "nct_id": "NCT00957723",
      "title": "Triathlon® Cruciate Retaining (CR) Total Knee System Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arthroplasty, Replacement, Knee"
      ],
      "interventions": [
        {
          "name": "Triathlon® CR Total Knee System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stryker Orthopaedics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 419,
      "start_date": "2005-02",
      "completion_date": "2017-09-26",
      "has_results": true,
      "last_update_posted_date": "2018-10-12",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 11,
      "location_summary": "Phoenix, Arizona • Miami, Florida • Columbus, Georgia + 8 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Columbus",
          "state": "Georgia"
        },
        {
          "city": "Cedar Rapids",
          "state": "Iowa"
        },
        {
          "city": "Newton",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00957723"
    },
    {
      "nct_id": "NCT05744895",
      "title": "MAKO Total Knee Artroplasty",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Device: Robotic MAKO total knee",
          "type": "DEVICE"
        },
        {
          "name": "FocusMotion knee brace",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit tracking device",
          "type": "DEVICE"
        },
        {
          "name": "FocusMotion app",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 123,
      "start_date": "2021-09-14",
      "completion_date": "2025-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 1,
      "location_summary": "Creve Coeur, Missouri",
      "locations": [
        {
          "city": "Creve Coeur",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05744895"
    },
    {
      "nct_id": "NCT03391323",
      "title": "Medacta GMK Sphere® vs. Medacta GMK PS Post-Market Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Osteoarthritis, Knee",
        "Joint Disease"
      ],
      "interventions": [
        {
          "name": "Medacta GMK Sphere® Medial-Pivot Knee Prosthesis",
          "type": "DEVICE"
        },
        {
          "name": "Medacta GMK PS Posterior Stabilized Knee Prosthesis",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "David F. Scott, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 218,
      "start_date": "2015-04",
      "completion_date": "2023-11-27",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03391323"
    },
    {
      "nct_id": "NCT01864434",
      "title": "In Vivo Kinematics Comparison of Stryker or Zimmer Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Knee Prosthesis"
      ],
      "interventions": [
        {
          "name": "Stryker posterior cruciat retaining (PCR) total knee arthroplasty (TKA)",
          "type": "DEVICE"
        },
        {
          "name": "Zimmer PCR TKA",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 50,
      "start_date": "2013-06",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2019-10-10",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 4,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01864434"
    },
    {
      "nct_id": "NCT01367938",
      "title": "Clinical Outcomes With Omni Apex Ultracongruent Knee System",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "OMNI Apex Ultracongruent Knee Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Spokane Joint Replacement Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 69,
      "start_date": "2009-11",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2018-12-05",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01367938"
    },
    {
      "nct_id": "NCT04275362",
      "title": "Gait Analysis of a Lateral-Pivot Design Total Knee Replacement",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "DJO Empowr PS Knee System",
          "type": "DEVICE"
        },
        {
          "name": "Stryker Triathlon Total Knee System",
          "type": "DEVICE"
        },
        {
          "name": "Biomet Vanguard Complete Knee System",
          "type": "DEVICE"
        },
        {
          "name": "Control",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "More Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 102,
      "start_date": "2017-02-02",
      "completion_date": "2029-01-02",
      "has_results": false,
      "last_update_posted_date": "2022-05-06",
      "last_synced_at": "2026-09-05T09:09:07.681Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04275362"
    }
  ]
}