{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Instability%3B+Ankle+%28Ligaments%29+%28Old+Injury%29",
    "query": {
      "condition": "Instability; Ankle (Ligaments) (Old Injury)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 2,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T05:08:37.012Z",
  "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": "NCT04999904",
      "title": "A Proprioceptive Training Program Using an Uneven Terrain Treadmill for Patients With Ankle Instability",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Instability; Ankle (Ligaments) (Old Injury)",
        "Sprain of Ankle"
      ],
      "interventions": [
        {
          "name": "Uneven Treadmill Intervention",
          "type": "OTHER"
        },
        {
          "name": "Standard of Care Physical Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 312,
      "start_date": "2021-11-23",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-07-18",
      "last_synced_at": "2026-05-22T05:08:37.012Z",
      "location_count": 2,
      "location_summary": "Oceanside, California • San Diego, California",
      "locations": [
        {
          "city": "Oceanside",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04999904"
    },
    {
      "nct_id": "NCT01790581",
      "title": "Balance Training vs. Balance Training w/ STARS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle (Ligaments); Instability (Old Injury)"
      ],
      "interventions": [
        {
          "name": "Balance Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "STARS",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Charlotte",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 24,
      "start_date": "2013-01",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2017-07-11",
      "last_synced_at": "2026-05-22T05:08:37.012Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01790581"
    }
  ]
}