{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Varus+Deformity",
    "query": {
      "condition": "Varus Deformity"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 12,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Varus+Deformity&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:09:53.227Z",
  "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": "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": "2026-05-22T08:09:53.227Z",
      "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": "NCT00764673",
      "title": "The 3DKnee™ System: A Post-Market Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Post Traumatic Arthritis",
        "Varus Deformity",
        "Avascular Necrosis"
      ],
      "interventions": [
        {
          "name": "3DKnee",
          "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": 71,
      "start_date": "2006-10",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2011-03-02",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 1,
      "location_summary": "City of Saint Peters, Missouri",
      "locations": [
        {
          "city": "City of Saint Peters",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00764673"
    },
    {
      "nct_id": "NCT07286513",
      "title": "Persona SoluTion PPS Femur PMCF",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rhematoid Arthritis",
        "Osteo Arthritis of the Knee",
        "Traumatic Arthritis of Knee (Diagnosis)",
        "Polyarthritis",
        "Collagen Disorders",
        "Avascular Necrosis of Femoral Condyle",
        "Valgus Deformity",
        "Varus Deformity",
        "Flexion Deformity of Knee"
      ],
      "interventions": [
        {
          "name": "Total knee arthroplasty",
          "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": 200,
      "start_date": "2026-02-26",
      "completion_date": "2037-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-21",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07286513"
    },
    {
      "nct_id": "NCT05587569",
      "title": "Outcomes Following Combined Adductoplasty™ and Lapiplasty® (MTA3D)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metatarsus Adductus",
        "Hallux Valgus"
      ],
      "interventions": [
        {
          "name": "Treatment of metatarsus adductus and hallux valgus with the Adductoplasty™ Procedure in combination with the Lapiplasty® Procedure",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Treace Medical Concepts, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "14 Years to 65 Years"
      },
      "enrollment_count": 80,
      "start_date": "2022-09-28",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-05-25",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 9,
      "location_summary": "Greeley, Colorado • Ankeny, Iowa • Yarmouth, Maine + 6 more",
      "locations": [
        {
          "city": "Greeley",
          "state": "Colorado"
        },
        {
          "city": "Ankeny",
          "state": "Iowa"
        },
        {
          "city": "Yarmouth",
          "state": "Maine"
        },
        {
          "city": "Jefferson City",
          "state": "Missouri"
        },
        {
          "city": "Morrisville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05587569"
    },
    {
      "nct_id": "NCT05787821",
      "title": "Persona OsseoTi Keel Compatibility Study (Total Knee Arthroplasty)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Knee Pain Chronic",
        "Osteoarthritis, Knee",
        "Rheumatoid Arthritis",
        "Traumatic Arthritis",
        "Polyarthritis",
        "Varus Deformity",
        "Valgus Deformity",
        "Flexion Deformity of Knee",
        "Avascular Necrosis"
      ],
      "interventions": [
        {
          "name": "Total Knee Arthroplasty",
          "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": 760,
      "start_date": "2023-06-28",
      "completion_date": "2035-06",
      "has_results": false,
      "last_update_posted_date": "2026-01-20",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 16,
      "location_summary": "Parker, Colorado • Tampa, Florida • Atlanta, Georgia + 13 more",
      "locations": [
        {
          "city": "Parker",
          "state": "Colorado"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05787821"
    },
    {
      "nct_id": "NCT03589300",
      "title": "Persona TM Tibia Clinical Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Traumatic Arthritis",
        "Polyarthritis",
        "Collagen Disorders and/or Avascular Necrosis of the Femoral Condyle",
        "Post-traumatic Loss of Joint Configuration",
        "Moderate Valgus, Varus, or Flexion Deformities"
      ],
      "interventions": [
        {
          "name": "Persona TM Tibia",
          "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": 148,
      "start_date": "2018-04-30",
      "completion_date": "2022-11-30",
      "has_results": true,
      "last_update_posted_date": "2024-07-23",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 7,
      "location_summary": "Torrance, California • Wheat Ridge, Colorado • Honolulu, Hawaii + 4 more",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Wheat Ridge",
          "state": "Colorado"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "New Castle",
          "state": "Indiana"
        },
        {
          "city": "Chesterfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03589300"
    },
    {
      "nct_id": "NCT03272373",
      "title": "NexGen TM Tibia Clinical Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Traumatic Arthritis",
        "Polyarthritis",
        "Collagen Disorders and/or Avascular Necrosis of the Femoral Condyle",
        "Post-traumatic Loss of Joint Configuration",
        "Moderate Valgus, Varus, or Flexion Deformities"
      ],
      "interventions": [
        {
          "name": "NexGen TM Monoblock Tibia",
          "type": "DEVICE"
        },
        {
          "name": "NexGen TM Modular Tibia",
          "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": 160,
      "start_date": "2017-10-03",
      "completion_date": "2023-03-31",
      "has_results": true,
      "last_update_posted_date": "2024-12-30",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 7,
      "location_summary": "Torrance, California • Wheat Ridge, Colorado • Mooresville, Indiana + 4 more",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Wheat Ridge",
          "state": "Colorado"
        },
        {
          "city": "Mooresville",
          "state": "Indiana"
        },
        {
          "city": "New Castle",
          "state": "Indiana"
        },
        {
          "city": "Chesterfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03272373"
    },
    {
      "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": "2026-05-22T08:09:53.227Z",
      "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": "NCT02255383",
      "title": "Persona Total Knee Arthroplasty Outcomes Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Pain Chronic",
        "Osteoarthritis",
        "Rheumatoid Arthritis",
        "Traumatic Arthritis",
        "Polyarthritis",
        "Moderate Varus, Valgus or Flexion Deformities",
        "Avascular Necrosis of the Femoral Condyle"
      ],
      "interventions": [
        {
          "name": "Zimmer Persona Total Knee System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zimmer Biomet",
      "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": 737,
      "start_date": "2014-07",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-10",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 14,
      "location_summary": "Denver, Colorado • Fort Collins, Colorado • Parker, Colorado + 11 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Fort Collins",
          "state": "Colorado"
        },
        {
          "city": "Parker",
          "state": "Colorado"
        },
        {
          "city": "Rockford",
          "state": "Illinois"
        },
        {
          "city": "New Castle",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02255383"
    },
    {
      "nct_id": "NCT05630053",
      "title": "Cemented vs Cementless Persona Keel RCT",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Pain Chronic",
        "Rheumatoid Arthritis",
        "Osteoarthritis",
        "Traumatic Arthritis",
        "Polyarthritis",
        "Avascular Necrosis",
        "Varus Deformity",
        "Valgus Deformity",
        "Flexion Deformity of Knee"
      ],
      "interventions": [
        {
          "name": "Cementless Persona Knee System",
          "type": "DEVICE"
        },
        {
          "name": "Cemented Persona 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": 300,
      "start_date": "2023-07-25",
      "completion_date": "2032-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-27",
      "last_synced_at": "2026-05-22T08:09:53.227Z",
      "location_count": 7,
      "location_summary": "Westminster, Colorado • Chicago, Illinois • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Westminster",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Bryn Mawr",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05630053"
    }
  ]
}