{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Contrast+Allergies&page=2",
    "query": {
      "condition": "Contrast Allergies",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Contrast+Allergies&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T18:26:40.803Z",
  "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": "NCT01337986",
      "title": "Ampyra for Optic Neuritis in Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis",
        "Optic Neuritis"
      ],
      "interventions": [
        {
          "name": "Dalfampridine/Placebo",
          "type": "DRUG"
        },
        {
          "name": "Placebo/Dalfampridine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 53,
      "start_date": "2011-05",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2020-01-30",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01337986"
    },
    {
      "nct_id": "NCT02028351",
      "title": "Vision Measured by the Vimetrics CVA Compared With Chart Testing Under Similar Luminance and Contrast Conditions",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Error",
        "Cataract",
        "Maculopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Sinclair Technologies, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2008-01",
      "completion_date": "2009-03",
      "has_results": false,
      "last_update_posted_date": "2014-01-07",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "Elkins Park, Pennsylvania",
      "locations": [
        {
          "city": "Elkins Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02028351"
    },
    {
      "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": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "Claremont, California",
      "locations": [
        {
          "city": "Claremont",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00402155"
    },
    {
      "nct_id": "NCT03109314",
      "title": "Combining Donepezil With Perceptual Learning in Normal and Amblyopic Human The Effect of Donepezil on Perceptual Learning in Adult Amblyopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Amblyopia"
      ],
      "interventions": [
        {
          "name": "Donepezil",
          "type": "DRUG"
        },
        {
          "name": "Single-letter training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Uncrowd training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Dennis Levi",
      "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": "2012-05-01",
      "completion_date": "2018-12-01",
      "has_results": false,
      "last_update_posted_date": "2019-01-17",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03109314"
    },
    {
      "nct_id": "NCT05486546",
      "title": "Contoura With Phorcides Compared to Wavefront Optimized LASIK",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Contoura with Phorcides",
          "type": "PROCEDURE"
        },
        {
          "name": "WaveLight Wavefront Optimized",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "Daniel Terveen",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "38 Years",
        "sex": "ALL",
        "summary": "21 Years to 38 Years"
      },
      "enrollment_count": 120,
      "start_date": "2022-08-15",
      "completion_date": "2023-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-04-26",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 4,
      "location_summary": "Bozeman, Montana • Omaha, Nebraska • Fargo, North Dakota + 1 more",
      "locations": [
        {
          "city": "Bozeman",
          "state": "Montana"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Fargo",
          "state": "North Dakota"
        },
        {
          "city": "Sioux Falls",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05486546"
    },
    {
      "nct_id": "NCT00395759",
      "title": "The Visual Effect of an Investigational Artificial Tear in the Tear Layer.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dry Eye Disease"
      ],
      "interventions": [
        {
          "name": "Optiva artificial tear by Allergan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Southern California College of Optometry at Marshall B. Ketchum University",
      "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": 30,
      "start_date": "2005-09",
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2007-10-23",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "Fullerton, California",
      "locations": [
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00395759"
    },
    {
      "nct_id": "NCT00553579",
      "title": "The Relationship of Residence Time and Visual Effect of Optive and Systane in Dry Eye Subjects",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dry Eye Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Southern California College of Optometry at Marshall B. Ketchum University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2007-06",
      "completion_date": "2008-05",
      "has_results": false,
      "last_update_posted_date": "2008-05-20",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "Fullerton, California",
      "locations": [
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00553579"
    },
    {
      "nct_id": "NCT06365762",
      "title": "The Safety and Efficacy Study of Ethylenediaminetetraacetic Acid (EDTA) Ophthalmic Solution in Patients With Loss of Contrast Sensitivity Due to Age-Related, Low-Grade Nuclear Cataract",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Age Related Cataracts"
      ],
      "interventions": [
        {
          "name": "EDTA Ophthalmic Solution 2.6%",
          "type": "DRUG"
        },
        {
          "name": "EDTA Ophthalmic Solution 1.3%",
          "type": "DRUG"
        },
        {
          "name": "Saline Solution (Placebo)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Livionex Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 111,
      "start_date": "2006-01-01",
      "completion_date": "2007-04-30",
      "has_results": false,
      "last_update_posted_date": "2024-04-16",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 6,
      "location_summary": "San Francisco, California • Overland Park, Kansas • Lutherville, Maryland + 3 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Lutherville",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06365762"
    },
    {
      "nct_id": "NCT00564902",
      "title": "The Zeaxanthin and Visual Function Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Age Related Macular Degeneration",
        "Cognition Disorders"
      ],
      "interventions": [
        {
          "name": "3R 3'R Zeaxanthin",
          "type": "DRUG"
        },
        {
          "name": "Lutein",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Lutein and Zeaxanthin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Chrysantis, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "45 Years to 90 Years"
      },
      "enrollment_count": 60,
      "start_date": "2007-11",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2012-03-29",
      "last_synced_at": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "North Chicago, Illinois",
      "locations": [
        {
          "city": "North Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00564902"
    },
    {
      "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": "2026-06-10T18:26:40.803Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01300949"
    }
  ]
}