{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+performance+measures",
    "query": {
      "intervention": "Visual performance measures"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 34,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+performance+measures&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T17:14:21.833Z",
  "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": "NCT03974945",
      "title": "Does Walking Performance Improve When Veterans With Leg Amputations Are Given Visual Feedback?",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Amputation"
      ],
      "interventions": [
        {
          "name": "Passive-elastic prosthetic foot",
          "type": "DEVICE"
        },
        {
          "name": "Powered ankle-foot prosthesis",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "67 Years",
        "sex": "ALL",
        "summary": "18 Years to 67 Years"
      },
      "enrollment_count": 12,
      "start_date": "2019-08-01",
      "completion_date": "2024-05-14",
      "has_results": true,
      "last_update_posted_date": "2025-07-15",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03974945"
    },
    {
      "nct_id": "NCT05986279",
      "title": "Improving Psychological and Vestibular Health: MINDGAPS",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vestibular Hypofunction"
      ],
      "interventions": [
        {
          "name": "Rehab",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Montana",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2023-08-30",
      "completion_date": "2027-09-29",
      "has_results": false,
      "last_update_posted_date": "2024-12-06",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 2,
      "location_summary": "San Diego, California • Missoula, Montana",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05986279"
    },
    {
      "nct_id": "NCT06307834",
      "title": "Restoring Grasp Ability in Stroke Survivors Through MI-Based Training",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "Neurofeedback - based therapy",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard hand exercise therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "North Carolina State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2024-04-01",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-03-13",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "Raleigh, North Carolina",
      "locations": [
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06307834"
    },
    {
      "nct_id": "NCT05011201",
      "title": "Dual Joint Visual Feedback Gait Retraining in Pediatric Hemiplegic Cerebral Palsy",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hemiplegic Cerebral Palsy"
      ],
      "interventions": [
        {
          "name": "Dual Joint Visual Feedback without Scoring",
          "type": "DEVICE"
        },
        {
          "name": "Dual Joint Visual Feedback with Scoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Kessler Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "7 Years to 17 Years"
      },
      "enrollment_count": 8,
      "start_date": "2021-11-19",
      "completion_date": "2022-08",
      "has_results": false,
      "last_update_posted_date": "2022-01-19",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "West Orange, New Jersey",
      "locations": [
        {
          "city": "West Orange",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05011201"
    },
    {
      "nct_id": "NCT07270133",
      "title": "Longitudinal Natural History Study of Retinal Function in Eyes of Patients With Diabetes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Retinal Disease"
      ],
      "interventions": [
        {
          "name": "Visual Acuity",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Reading Speed",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Visual Field testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Contrast sensitivity",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Electroretinography (ERG) and pupillography in light- and dark-adapted states",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Ultrawide field-color photograph",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Ultrawide field-Fluorescein angiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Optical coherence tomography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Optical coherence tomography- Angiography",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Jaeb Center for Health Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 450,
      "start_date": "2026-06-01",
      "completion_date": "2032-12",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 4,
      "location_summary": "Augusta, Georgia • Boston, Massachusetts • Detroit, Michigan + 1 more",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Monroeville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07270133"
    },
    {
      "nct_id": "NCT05312177",
      "title": "Congenital Heart Disease: Impact on Learning and Development in Down Syndrome (CHILD-DS)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Down Syndrome",
        "Congenital Heart Disease"
      ],
      "interventions": [
        {
          "name": "Stanford Binet Intelligence Scales, Fifth Edition",
          "type": "OTHER"
        },
        {
          "name": "Vineland Adaptive Behavior Scales Third Edition",
          "type": "OTHER"
        },
        {
          "name": "Peabody Picture Vocabulary Test, Fifth Edition",
          "type": "OTHER"
        },
        {
          "name": "Expressive Vocabulary Test, Third Edition",
          "type": "OTHER"
        },
        {
          "name": "Leiter International Performance Scale, Third Edition",
          "type": "OTHER"
        },
        {
          "name": "Social Communication Questionnaire, Current Form",
          "type": "OTHER"
        },
        {
          "name": "Aberrant Behavior Checklist",
          "type": "OTHER"
        },
        {
          "name": "Repetitive Behavior Scale, Revised",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Carelon Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Months",
        "maximum_age": "155 Months",
        "sex": "ALL",
        "summary": "60 Months to 155 Months"
      },
      "enrollment_count": 273,
      "start_date": "2022-05-01",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-01-11",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 13,
      "location_summary": "Wilmington, Delaware • Washington D.C., District of Columbia • Atlanta, Georgia + 10 more",
      "locations": [
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05312177"
    },
    {
      "nct_id": "NCT06784934",
      "title": "Mindful Minds: Mindfulness-Based Neurofeedback for Underrepresented College Students",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Academic Performance",
        "Anxiety"
      ],
      "interventions": [
        {
          "name": "NeuroSky Mindfulness-Based Neurofeedback",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Florida International University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 39,
      "start_date": "2025-01-28",
      "completion_date": "2025-03-25",
      "has_results": true,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06784934"
    },
    {
      "nct_id": "NCT02927470",
      "title": "TMS of Visual Working Memory",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Occipital Transcranial Magnetic Stimulation"
      ],
      "interventions": [
        {
          "name": "Sham TMS condition",
          "type": "DEVICE"
        },
        {
          "name": "OffLine TMS Condition",
          "type": "DEVICE"
        },
        {
          "name": "Online TMS condition",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2016-11",
      "completion_date": "2018-04-25",
      "has_results": false,
      "last_update_posted_date": "2020-08-27",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02927470"
    },
    {
      "nct_id": "NCT06465667",
      "title": "Improving Engagement With a Process Measure Dashboard Through Precision Feedback",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Behavior"
      ],
      "interventions": [
        {
          "name": "Dashboard",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Precision Feedback Push",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2024-07-17",
      "completion_date": "2025-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-12",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06465667"
    },
    {
      "nct_id": "NCT05571033",
      "title": "Operant Conditioning of the Soleus Stretch Reflex in Adults With Cerebral Palsy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cerebral Palsy",
        "Spastic Cerebral Palsy"
      ],
      "interventions": [
        {
          "name": "Spinal reflex conditioning",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Burke Medical Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2022-09-30",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-09-26",
      "last_synced_at": "2026-09-08T17:14:21.833Z",
      "location_count": 1,
      "location_summary": "White Plains, New York",
      "locations": [
        {
          "city": "White Plains",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05571033"
    }
  ]
}