{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Evoked+Potential+%28VEP%29",
    "query": {
      "intervention": "Visual Evoked Potential (VEP)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 21,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Evoked+Potential+%28VEP%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T18:40:58.047Z",
  "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": "NCT05932589",
      "title": "Neurophysiologic Biomarkers in Rett Syndrome",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rett Syndrome",
        "RTT",
        "Rett Syndrome, Atypical"
      ],
      "interventions": [
        {
          "name": "EEG and Auditory and Visual Evoked Potentials (AEP and VEP)",
          "type": "OTHER"
        },
        {
          "name": "Clinical assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "18 Years",
        "sex": "FEMALE",
        "summary": "1 Year to 18 Years · Female only"
      },
      "enrollment_count": 202,
      "start_date": "2023-10-11",
      "completion_date": "2029-03-31",
      "has_results": false,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 6,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Brookline, Massachusetts + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Brookline",
          "state": "Massachusetts"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05932589"
    },
    {
      "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": "2026-09-16",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 6,
      "location_summary": "Augusta, Georgia • Boston, Massachusetts • Detroit, Michigan + 3 more",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Monroeville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07270133"
    },
    {
      "nct_id": "NCT00402155",
      "title": "Visual Discomfort and Reading",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Visual Fatigue"
      ],
      "interventions": [
        {
          "name": "Stress on visual discomfort",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Southern California College of Optometry at Marshall B. Ketchum University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "17 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "17 Years to 30 Years"
      },
      "enrollment_count": 100,
      "start_date": "2004-07",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2009-11-13",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Claremont, California",
      "locations": [
        {
          "city": "Claremont",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00402155"
    },
    {
      "nct_id": "NCT02622178",
      "title": "How Accurately Does the Diopsys Visual Evoked Potential (VEP) Vision Testing System Detect Glaucoma?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma Diagnosis"
      ],
      "interventions": [
        {
          "name": "Optical Coherence Tomography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Visual evoked potential",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 136,
      "start_date": "2011-09",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2018-11-15",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02622178"
    },
    {
      "nct_id": "NCT03536559",
      "title": "Nanocrystalline Gold to Treat Remyelination Failure in Chronic Optic Neuropathy In Multiple Sclerosis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Relapsing Remitting Multiple Sclerosis",
        "Optic Neuropathy",
        "Optic; Neuritis, With Demyelination"
      ],
      "interventions": [
        {
          "name": "CNM-Au8",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Clene Nanomedicine",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 73,
      "start_date": "2018-11-23",
      "completion_date": "2022-07-12",
      "has_results": false,
      "last_update_posted_date": "2023-04-03",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03536559"
    },
    {
      "nct_id": "NCT02791425",
      "title": "Brain Computer Interface for Communication in Ventilated Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mechanical Ventilation",
        "Nonverbal Communication",
        "Intratracheal Intubation",
        "Critical Illness"
      ],
      "interventions": [
        {
          "name": "Brain Computer Interface (BCI) device",
          "type": "DEVICE"
        },
        {
          "name": "Communication picture board",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "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": 1,
      "start_date": "2017-03-01",
      "completion_date": "2017-08-25",
      "has_results": false,
      "last_update_posted_date": "2019-04-17",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02791425"
    },
    {
      "nct_id": "NCT03914599",
      "title": "Protective Genetic Factors Against Neurological Diseases",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Neurological Disorder",
        "Healthy Control"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Wayne State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 124,
      "start_date": "2019-04-15",
      "completion_date": "2022-07-11",
      "has_results": false,
      "last_update_posted_date": "2022-07-18",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03914599"
    },
    {
      "nct_id": "NCT05853939",
      "title": "Measuring rTMS-induced Neuroplasticity With EEG Steady-state Visual-evoked Potentials",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Cortical Plasticity",
        "Repetitive Transcranial Magnetic Stimulation",
        "Visual Attention"
      ],
      "interventions": [
        {
          "name": "repetitive transcranial magnetic stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "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": 106,
      "start_date": "2023-07-01",
      "completion_date": "2026-06-02",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05853939"
    },
    {
      "nct_id": "NCT02105337",
      "title": "Tegaderm and Visual Evoked Potentials",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tumor of Pituitary and Suprasellar Region"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Rutgers, The State University of New Jersey",
      "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": 6,
      "start_date": "2013-07",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2015-03-11",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Newark, New Jersey",
      "locations": [
        {
          "city": "Newark",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02105337"
    },
    {
      "nct_id": "NCT02643615",
      "title": "Safety and Efficacy of Using SightSaver Visual Evoked Potential (VEP) for VEP Monitoring in Prone Spine Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ischemic Optic Neuropathy"
      ],
      "interventions": [
        {
          "name": "VEP under TIVA",
          "type": "DEVICE"
        },
        {
          "name": "VEP under balanced anesth.",
          "type": "DEVICE"
        },
        {
          "name": "Propofol",
          "type": "DRUG"
        },
        {
          "name": "Desflurane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2014-09",
      "completion_date": "2016-03",
      "has_results": true,
      "last_update_posted_date": "2017-08-01",
      "last_synced_at": "2026-09-26T18:40:58.047Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02643615"
    }
  ]
}