{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Knee+Cap",
    "query": {
      "condition": "Knee Cap"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 65,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Knee+Cap&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T05:34:31.096Z",
  "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": "NCT01862731",
      "title": "Muscle Strength Loss and Its Effect on Knee Cap Motion in Volunteers With Anterior Knee Pain",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Patellofemoral Pain Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 35,
      "start_date": "2013-05-31",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-04-20",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01862731"
    },
    {
      "nct_id": "NCT00152971",
      "title": "Dabigatran Etexilate vs Enoxaparin in Prevention of Venous Thromboembolism (VTE) Post Total Knee Replacement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Arthroplasty, Replacement, Knee",
        "Thromboembolism"
      ],
      "interventions": [
        {
          "name": "Dabigatran Dose 1 - day 2 to completion",
          "type": "DRUG"
        },
        {
          "name": "Dabigatran Dose 1 - day 1",
          "type": "DRUG"
        },
        {
          "name": "Dabigatran Dose 2 - day 2 to completion",
          "type": "DRUG"
        },
        {
          "name": "Dabigatran Dose 2 - day 1",
          "type": "DRUG"
        },
        {
          "name": "Enoxaparin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2615,
      "start_date": "2004-11",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2014-05-05",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 59,
      "location_summary": "Birmingham, Alabama • Northport, Alabama • Tucson, Arizona + 48 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Northport",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00152971"
    },
    {
      "nct_id": "NCT00420992",
      "title": "A Study of Embeda (Kadian NT, ALO-01) in Subjects With Pain Due to Osteoarthritis of the Hip or Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis",
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "ALO-01 (Morphine Sulfate Plus Naltrexone Hydrochloride Extended Release)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 547,
      "start_date": "2006-12",
      "completion_date": "2007-11",
      "has_results": true,
      "last_update_posted_date": "2013-09-20",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 81,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Peoria, Arizona + 69 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00420992"
    },
    {
      "nct_id": "NCT03873545",
      "title": "Prospective Evaluation of ProChondrix CR for Repair of Articular Cartilage Defects on Femoral Condyle and Patella",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cartilage Injury",
        "Cartilage Damage"
      ],
      "interventions": [
        {
          "name": "Cryopreserved Osteochondral Allograft",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "AlloSource",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 34,
      "start_date": "2019-03-18",
      "completion_date": "2028-12-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-25",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Lexington, Kentucky • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03873545"
    },
    {
      "nct_id": "NCT05461326",
      "title": "Quadriceps Tendon Versus Bone Patellar Tendon Bone Autograft ACL Reconstruction RCT",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Orthopedic Disorder",
        "Anterior Cruciate Ligament Injuries"
      ],
      "interventions": [
        {
          "name": "Quad tendon",
          "type": "PROCEDURE"
        },
        {
          "name": "BTB",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "14 Years to 65 Years"
      },
      "enrollment_count": 100,
      "start_date": "2023-09-26",
      "completion_date": "2030-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-06-08",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05461326"
    },
    {
      "nct_id": "NCT03519555",
      "title": "BIOSURE™ RG Knee Safety & Performance Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "ACL Repair",
        "Posterior Cruciate Ligament (PCL) Repair",
        "Medial Collateral Ligament (MCL)",
        "Lateral Collateral Ligament (LCL)",
        "Posterior Oblique Ligament (POL)",
        "Patellar Realignment and Tendon Repairs",
        "Vastus Medialis Obliquus Advancement",
        "Iliotibial Band Tenodesis",
        "Extra-capsular Repairs",
        "Knee Repair"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 60,
      "start_date": "2017-11-09",
      "completion_date": "2020-10-05",
      "has_results": false,
      "last_update_posted_date": "2021-07-08",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 3,
      "location_summary": "Rockford, Illinois • Charlotte, North Carolina • Houston, Texas",
      "locations": [
        {
          "city": "Rockford",
          "state": "Illinois"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03519555"
    },
    {
      "nct_id": "NCT06078371",
      "title": "Opioid-Free Pain Treatment in Trauma Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Femoral Neck Fractures",
        "Intertrochanteric Fractures",
        "Femoral Shaft Fracture",
        "Distal Femur Fracture",
        "Patella Fracture",
        "Tibial Shaft Fracture with or Without Associated Fibula Fracture",
        "Ankle Fracture (bimalleolar Equivalent, Bimalleolar, or Trimalleolar)",
        "Tibial Pilon Fracture",
        "Talar Head, Neck, Body, or Process Fractures",
        "Calcaneus Fractures",
        "Lisfranc Injuries",
        "Isolated or Multiple Metatarsal Fractures",
        "Phalanx Fractures of the Foot, Single or Multiple",
        "Clavicle Fractures",
        "Proximal Humerus Fractures",
        "Humeral Shaft Fractures",
        "Distal Humerus Fractures (intra or Extra-articular)",
        "Olecranon Fractures",
        "Radial Head or Neck Fractures",
        "Elbow Fractures Involving a Combination of Fractures of the Radius and Uln",
        "Forearm Fractures (both Bone Forearm Fractures, Isolated Ulnar Shaft, Isolated Radial Shaft)",
        "Distal Radius Fractures"
      ],
      "interventions": [
        {
          "name": "Opioid-free pain treatment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2023-11-01",
      "completion_date": "2026-10",
      "has_results": false,
      "last_update_posted_date": "2024-10-26",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06078371"
    },
    {
      "nct_id": "NCT06883396",
      "title": "JUPITER 4.0 - Risk Factors for Failure of Isolated Medial Patellofemoral Ligament Reconstruction",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Patellar Dislocation, Recurrent",
        "Patellar Dislocation",
        "Patellar Instability",
        "Patellofemoral Dislocation",
        "Patellofemoral Joint Dislocation",
        "Patellofemoral Disorder"
      ],
      "interventions": [
        {
          "name": "Medial Patellofemoral Ligament (MPFL) Reconstruction",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "10 Years to 35 Years"
      },
      "enrollment_count": 850,
      "start_date": "2023-01-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-02-13",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 16,
      "location_summary": "Redwood City, California • Gainesville, Florida • Chicago, Illinois + 10 more",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06883396"
    },
    {
      "nct_id": "NCT03136965",
      "title": "Platelet-Rich Plasma Therapy for Patellar Tendinopathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Patellar Tendinitis"
      ],
      "interventions": [
        {
          "name": "PRP",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Dry Needling",
          "type": "PROCEDURE"
        },
        {
          "name": "Dry Needling - Sham",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 30,
      "start_date": "2017-04-25",
      "completion_date": "2022-08-15",
      "has_results": true,
      "last_update_posted_date": "2023-10-26",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03136965"
    },
    {
      "nct_id": "NCT03353233",
      "title": "Evaluation of Utility of Ultrasound Guided iPACK Block for Knee Extension After Total Knee Arthroplasty.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Primary Total Knee Arthroplasty",
        "Physical Therapy",
        "Pain",
        "Knee Extension"
      ],
      "interventions": [
        {
          "name": "Ropivacaine",
          "type": "DRUG"
        },
        {
          "name": "Interspace Between the Popliteal Artery and Capsule of the Knee (iPACK) Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 50,
      "start_date": "2018-05-03",
      "completion_date": "2021-01-23",
      "has_results": true,
      "last_update_posted_date": "2021-12-21",
      "last_synced_at": "2026-05-22T05:34:31.096Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03353233"
    }
  ]
}