{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast+sensitivity",
    "query": {
      "intervention": "Contrast sensitivity"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 91,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast+sensitivity&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T07:18:46.745Z",
  "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": "NCT07613099",
      "title": "Fibrotic Disease Activity in Cardiopulmonary Disorders Using 18F-Fibroblast Activation Protein Inhibitor (18F-FAPI-74) PET/CT Imaging",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Allogeneic Stem Cell Transplantation",
        "Lung Allograft Transplantation",
        "Interstitial Lung Disease",
        "Acute Lung Injury",
        "Pulmonary Arterial Hypertension",
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "[18F]FAPI-74",
          "type": "DRUG"
        },
        {
          "name": "18F-FAPI-74 PET/CT Imaging",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 210,
      "start_date": "2026-09-07",
      "completion_date": "2033-05-26",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07613099"
    },
    {
      "nct_id": "NCT04130607",
      "title": "A Study to Evaluate Strategies for Teaching Effective Use of Diagnostic Tests",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Instructional Methods"
      ],
      "interventions": [
        {
          "name": "Conceptual teaching",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Sentara Norfolk General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2018-05-15",
      "completion_date": "2019-10-15",
      "has_results": false,
      "last_update_posted_date": "2019-10-17",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04130607"
    },
    {
      "nct_id": "NCT01013077",
      "title": "The Effect of a New Emulsion in Dry Eye Patients on Tear Layer Aberrometry, Contrast Sensitivity, and Reading Ability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dry Eye Syndrome"
      ],
      "interventions": [
        {
          "name": "Optive, Soothe, New Emulsion",
          "type": "OTHER"
        },
        {
          "name": "Soothe, New Emulsion, Optive",
          "type": "OTHER"
        },
        {
          "name": "New Emulsion, Optive, Soothe",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Southern California College of Optometry at Marshall B. Ketchum University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2009-11",
      "completion_date": "2011-08",
      "has_results": true,
      "last_update_posted_date": "2025-06-12",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Fullerton, California",
      "locations": [
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01013077"
    },
    {
      "nct_id": "NCT02706977",
      "title": "The Effect of Dopamine on Diabetic Retinopathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Low Dose Sinemet CR",
          "type": "DRUG"
        },
        {
          "name": "High Dose Sinemet CR",
          "type": "DRUG"
        },
        {
          "name": "RETeval Electroretinogram (ERG) Testing",
          "type": "DEVICE"
        },
        {
          "name": "Contrast Sensitivity Testing",
          "type": "OTHER"
        },
        {
          "name": "Visual Acuity Testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 60,
      "start_date": "2016-01",
      "completion_date": "2019-08-15",
      "has_results": false,
      "last_update_posted_date": "2019-10-09",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02706977"
    },
    {
      "nct_id": "NCT04739397",
      "title": "Evaluation of the EpiGlare Tester for the Measurement of Glare-Induced Changes in BSCVA in Subjects With and Without Cataracts",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "Glare Testing",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Epico, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2011-11",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2021-02-04",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04739397"
    },
    {
      "nct_id": "NCT01300949",
      "title": "Spaeth/Richman Contrast Sensitivity Test",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Spaeth/Richman Contrast Sensitivity Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Pelli-Robson Contrast Sensitivity Chart",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 314,
      "start_date": "2010-01",
      "completion_date": "2014-04",
      "has_results": true,
      "last_update_posted_date": "2018-12-11",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01300949"
    },
    {
      "nct_id": "NCT04112667",
      "title": "Functionally Validated Structural Endpoints for Early AMD",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Age-related Macular Degeneration",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Normal Macular Health",
          "type": "OTHER"
        },
        {
          "name": "Early Macular Degeneration",
          "type": "OTHER"
        },
        {
          "name": "Young Normals",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cynthia Owsley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "20 Years and older"
      },
      "enrollment_count": 556,
      "start_date": "2019-10-07",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2025-09-26",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04112667"
    },
    {
      "nct_id": "NCT05582304",
      "title": "Role of Glare and Spectral Filtering on Contrast Sensitivity: A Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity"
      ],
      "interventions": [
        {
          "name": "Test Lens",
          "type": "DEVICE"
        },
        {
          "name": "Control Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-10-31",
      "completion_date": "2022-12-08",
      "has_results": true,
      "last_update_posted_date": "2024-01-31",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Athens, Georgia",
      "locations": [
        {
          "city": "Athens",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05582304"
    },
    {
      "nct_id": "NCT01223716",
      "title": "An Active Approach to Treat Amblyopia: Video Game Play",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Amblyopia"
      ],
      "interventions": [
        {
          "name": "Perceptual learning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Video Game",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Crossover (Occlusion therapy + Video Game)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Berkeley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "5 Years to 75 Years"
      },
      "enrollment_count": 20,
      "start_date": "2004-12",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2016-05-17",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01223716"
    },
    {
      "nct_id": "NCT05281731",
      "title": "Sonobiopsy for Noninvasive and Sensitive Detection of Glioblastoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glioblastoma",
        "Glioblastoma Multiforme"
      ],
      "interventions": [
        {
          "name": "Sonobiopsy",
          "type": "DEVICE"
        },
        {
          "name": "Research blood",
          "type": "PROCEDURE"
        },
        {
          "name": "Cancer Personalized Profiling",
          "type": "GENETIC"
        },
        {
          "name": "Definity®",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE",
        "GENETIC"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2022-04-18",
      "completion_date": "2028-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-09-03T07:18:46.745Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05281731"
    }
  ]
}