{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Effusion+Joint",
    "query": {
      "condition": "Effusion Joint"
    },
    "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": "2026-07-22T12:38:34.609Z",
  "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": "NCT04146649",
      "title": "Effect of Therapeutic Joint Arthrocentesis on Pain and Quadriceps Function in Patients With Knee Osteoarthritis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Effusion Joint"
      ],
      "interventions": [
        {
          "name": "Arthrocentesis",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Colorado Joint Replacement",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 66,
      "start_date": "2019-12-05",
      "completion_date": "2023-12",
      "has_results": false,
      "last_update_posted_date": "2023-08-31",
      "last_synced_at": "2026-07-22T12:38:34.609Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Denver, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04146649"
    },
    {
      "nct_id": "NCT03805464",
      "title": "Walking Gait Biomechanics Following Knee Joint Effusion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Injuries",
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Knee Joint Effusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 14,
      "start_date": "2019-01-29",
      "completion_date": "2023-05-18",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-07-22T12:38:34.609Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03805464"
    },
    {
      "nct_id": "NCT03922490",
      "title": "Lipogems Prospective Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Lipogems Device PLUS debridement",
          "type": "DEVICE"
        },
        {
          "name": "Debridement only",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 2,
      "start_date": "2019-11-11",
      "completion_date": "2020-02-27",
      "has_results": true,
      "last_update_posted_date": "2023-02-10",
      "last_synced_at": "2026-07-22T12:38:34.609Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03922490"
    },
    {
      "nct_id": "NCT03327584",
      "title": "Ultrasound Guided Versus Landmark Guided Small & Medium Joint Arthrocentesis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Effusion Joint"
      ],
      "interventions": [
        {
          "name": "Arthrocentesis",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 30,
      "start_date": "2017-01-01",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-01-22",
      "last_synced_at": "2026-07-22T12:38:34.609Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03327584"
    },
    {
      "nct_id": "NCT05971745",
      "title": "Accuracy of Pediatric Emergency Medicine Providers in Diagnosing Hip Effusions Using Point of Care Ultrasound",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hip Effusion",
        "Septic Arthritis",
        "Transient Synovitis, Hip"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Connecticut Children's Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "1 Month to 18 Years"
      },
      "enrollment_count": 161,
      "start_date": "2019-10-15",
      "completion_date": "2024-04-25",
      "has_results": false,
      "last_update_posted_date": "2024-08-22",
      "last_synced_at": "2026-07-22T12:38:34.609Z",
      "location_count": 5,
      "location_summary": "Hartford, Connecticut • New Haven, Connecticut • Newark, New Jersey + 2 more",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Newark",
          "state": "New Jersey"
        },
        {
          "city": "New Hyde Park",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05971745"
    },
    {
      "nct_id": "NCT00988468",
      "title": "Manual Therapy Versus Exercise on Knee Osteoarthritis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Manual Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Video Observation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "Texas Tech University Health Sciences Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 1,
      "start_date": "2009-10",
      "completion_date": "2010-08",
      "has_results": false,
      "last_update_posted_date": "2010-11-16",
      "last_synced_at": "2026-07-22T12:38:34.609Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00988468"
    }
  ]
}