{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Ankle+Instability",
    "query": {
      "condition": "Chronic Ankle Instability"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 31,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Ankle+Instability&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T20:34:31.428Z",
  "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": "NCT03428620",
      "title": "Effect of Mobilization in Conjunction With Exercise in Participants With a History of Chronic Ankle Instability",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle Sprains"
      ],
      "interventions": [
        {
          "name": "High Velocity Low Amplitude mobilization",
          "type": "OTHER"
        },
        {
          "name": "Exercise protocol",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shenandoah 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": 50,
      "start_date": "2018-02-14",
      "completion_date": "2019-06",
      "has_results": false,
      "last_update_posted_date": "2018-04-17",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 2,
      "location_summary": "Fayetteville, North Carolina • Winchester, Virginia",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "North Carolina"
        },
        {
          "city": "Winchester",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03428620"
    },
    {
      "nct_id": "NCT06484712",
      "title": "Electrical Stimulation Effect on Ankle Instability During Walking in Virtual Reality Setup",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle Sprains",
        "Ankle Instability"
      ],
      "interventions": [
        {
          "name": "Stochastic Resonance (SR)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Delaware",
      "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": 32,
      "start_date": "2024-05-29",
      "completion_date": "2025-01-09",
      "has_results": false,
      "last_update_posted_date": "2025-04-11",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Newark, Delaware",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06484712"
    },
    {
      "nct_id": "NCT03918473",
      "title": "Effects of Mobilization Versus Manipulation on Function in Participants Reporting CAI",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle Sprains"
      ],
      "interventions": [
        {
          "name": "Mobilization with Movement",
          "type": "OTHER"
        },
        {
          "name": "Thrust Mobilization",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shenandoah 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": 50,
      "start_date": "2019-04",
      "completion_date": "2020-12",
      "has_results": false,
      "last_update_posted_date": "2019-04-17",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Winchester, Virginia",
      "locations": [
        {
          "city": "Winchester",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03918473"
    },
    {
      "nct_id": "NCT07163897",
      "title": "Validation of a Portable Ankle Arthrometer",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Ankle Instability, CAI",
        "Ankle Sprain",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Cobra Ankle Arthrometer",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 62,
      "start_date": "2025-10-01",
      "completion_date": "2026-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07163897"
    },
    {
      "nct_id": "NCT02025569",
      "title": "The Effect of Strain-counterstrain on Ankle Instability",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Other Instability, Ankle and Foot"
      ],
      "interventions": [
        {
          "name": "Strain Counterstrain",
          "type": "OTHER"
        },
        {
          "name": "Sham strain counterstrain",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Long Island University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 27,
      "start_date": "2008-01",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2014-01-01",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02025569"
    },
    {
      "nct_id": "NCT05655143",
      "title": "Effects of Balance Training on Corticospinal Excitability in People With Chronic Ankle Instability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle Injuries"
      ],
      "interventions": [
        {
          "name": "Balance training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Old Dominion University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 30,
      "start_date": "2022-12-06",
      "completion_date": "2024-03-31",
      "has_results": false,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05655143"
    },
    {
      "nct_id": "NCT04302961",
      "title": "Effects of Gait Retraining With Auditory Feedback",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Ankle Injuries",
        "Ankle Inversion Sprain"
      ],
      "interventions": [
        {
          "name": "Auditory Feedback",
          "type": "OTHER"
        },
        {
          "name": "No Feedback",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Charlotte",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 28,
      "start_date": "2020-10-05",
      "completion_date": "2021-06-30",
      "has_results": false,
      "last_update_posted_date": "2024-08-19",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04302961"
    },
    {
      "nct_id": "NCT02945943",
      "title": "Effects of Mobilization in Conjunction With Therapeutic Exercise in Participants With a History of Ankle Sprain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Functional Deficits",
        "Manipulation",
        "Rehabilitation"
      ],
      "interventions": [
        {
          "name": "High Velocity Low Amplitude mobilization",
          "type": "OTHER"
        },
        {
          "name": "Exercise Protocol",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shenandoah University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "16 Years to 35 Years"
      },
      "enrollment_count": 19,
      "start_date": "2012-02",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2016-10-26",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Winchester, Virginia",
      "locations": [
        {
          "city": "Winchester",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02945943"
    },
    {
      "nct_id": "NCT04322409",
      "title": "NMES and Chronic Ankle Instability",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chronic Ankle Instability"
      ],
      "interventions": [
        {
          "name": "Neuromuscular Electrical Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Transcutaneous Electrical Nerve Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Appalachian State University",
      "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": 26,
      "start_date": "2019-11-01",
      "completion_date": "2020-11-01",
      "has_results": false,
      "last_update_posted_date": "2020-03-26",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Boone, North Carolina",
      "locations": [
        {
          "city": "Boone",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04322409"
    },
    {
      "nct_id": "NCT04131842",
      "title": "External Versus Internal Feedback in Patients With Chronic Ankle Instability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankle Injuries",
        "Ankle Inversion Sprain"
      ],
      "interventions": [
        {
          "name": "External focus of attention visual feedback",
          "type": "OTHER"
        },
        {
          "name": "External focus of attention auditory feedback",
          "type": "OTHER"
        },
        {
          "name": "Internal focus of attention video feedback",
          "type": "OTHER"
        },
        {
          "name": "No feedback",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Charlotte",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 48,
      "start_date": "2020-02-18",
      "completion_date": "2024-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-08-19",
      "last_synced_at": "2026-06-10T20:34:31.428Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04131842"
    }
  ]
}