{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Patellofemoral+Knee+Arthroplasty",
    "query": {
      "condition": "Patellofemoral Knee Arthroplasty"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T16:07:16.568Z",
  "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": "NCT03668691",
      "title": "Clinical Outcomes of Joint Arthroplasty",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Robotic-arm assisted partial knee arthroplasty",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "St. Helena Hospital Coon Joint Replacement Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2011-07",
      "completion_date": "2027-03",
      "has_results": false,
      "last_update_posted_date": "2018-09-12",
      "last_synced_at": "2026-07-23T16:07:16.568Z",
      "location_count": 1,
      "location_summary": "St. Helena, California",
      "locations": [
        {
          "city": "St. Helena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03668691"
    },
    {
      "nct_id": "NCT01947686",
      "title": "Survivorship and Outcomes of Robotically Assisted Patellofemoral UKA",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Patellofemoral Knee Arthroplasty"
      ],
      "interventions": [
        {
          "name": "Robotically guided patellofemoral UKA isolated patellofemoral implants",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "St. Helena Hospital Coon Joint Replacement Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2013-02",
      "completion_date": "2023-02",
      "has_results": false,
      "last_update_posted_date": "2018-09-05",
      "last_synced_at": "2026-07-23T16:07:16.568Z",
      "location_count": 2,
      "location_summary": "St. Helena, California • Vancouver, Washington",
      "locations": [
        {
          "city": "St. Helena",
          "state": "California"
        },
        {
          "city": "Vancouver",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01947686"
    },
    {
      "nct_id": "NCT01375231",
      "title": "Anatomic Reconstruction of the Patellofemoral Joint",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Knee Replacement Surgery"
      ],
      "interventions": [
        {
          "name": "Measured Resection of patellofemoral joint",
          "type": "PROCEDURE"
        },
        {
          "name": "Measured resection of patella",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "OrthoCarolina Research Institute, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 52,
      "start_date": "2011-06",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2014-06-30",
      "last_synced_at": "2026-07-23T16:07:16.568Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01375231"
    },
    {
      "nct_id": "NCT04817969",
      "title": "Persona Ti-Nidium Post-Market Clinical Follow-up",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Pain Chronic",
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Traumatic Arthritis",
        "Polyarthritis",
        "Varus Deformity",
        "Valgus Deformity",
        "Flexion Deformity of the Knee",
        "Avascular Necrosis",
        "Patellofemoral Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Zimmer Biomet Persona Ti-Nidium Total Knee 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": 240,
      "start_date": "2021-06-01",
      "completion_date": "2034-05",
      "has_results": false,
      "last_update_posted_date": "2025-10-24",
      "last_synced_at": "2026-07-23T16:07:16.568Z",
      "location_count": 7,
      "location_summary": "Parker, Colorado • Hyattsville, Maryland • Jackson, Mississippi + 4 more",
      "locations": [
        {
          "city": "Parker",
          "state": "Colorado"
        },
        {
          "city": "Hyattsville",
          "state": "Maryland"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04817969"
    },
    {
      "nct_id": "NCT01290627",
      "title": "In Vivo Determination of 3D Patellofemoral Mechanics",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arthroplasty Replacement Knee",
        "Knee Prosthesis"
      ],
      "interventions": [
        {
          "name": "Subjects implanted with DePuy LCS PS RP TKA",
          "type": "DEVICE"
        },
        {
          "name": "Subjects implanted with DePuy Sigma PS RP TKA",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "20 Years to 85 Years"
      },
      "enrollment_count": 30,
      "start_date": "2011-02",
      "completion_date": "2011-09",
      "has_results": true,
      "last_update_posted_date": "2019-10-29",
      "last_synced_at": "2026-07-23T16:07:16.568Z",
      "location_count": 4,
      "location_summary": "Denver, Colorado • Knoxville, Tennessee",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01290627"
    },
    {
      "nct_id": "NCT02738476",
      "title": "Outcomes of MAKOplasty Patellofemoral Arthroplasty in Younger Active Patients",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Patellofemoral arthroplasty",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Cincinnati Sportsmedicine Research and Education Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "20 Years to 65 Years"
      },
      "enrollment_count": 60,
      "start_date": "2016-04",
      "completion_date": "2022-02",
      "has_results": false,
      "last_update_posted_date": "2020-10-08",
      "last_synced_at": "2026-07-23T16:07:16.568Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02738476"
    }
  ]
}