{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Optical+Filters",
    "query": {
      "intervention": "Optical Filters"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Optical+Filters&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T04:58:25.533Z",
  "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": "NCT07539987",
      "title": "Evaluation of a Novel Indoor Air Pollution Intervention Among Older Adults",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Blood Pressure",
        "Glycated Hemoglobin (HbA1c)",
        "Cholesterol",
        "Cholesterol, HDL",
        "Cholesterol, LDL",
        "Indoor Air Quality",
        "Particulate Matter",
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "Air Improvement and Real-time Monitoring for Wellness through Interactive Strategies and Education (AIRWISE)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Portable Air Cleaner (PAC) Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Montana",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "55 Years to 79 Years"
      },
      "enrollment_count": 154,
      "start_date": "2026-08",
      "completion_date": "2030-07",
      "has_results": false,
      "last_update_posted_date": "2026-04-20",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07539987"
    },
    {
      "nct_id": "NCT03482245",
      "title": "The Role of Circadian Clock Proteins in Innate and Adaptive Immunity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pneumonia",
        "Necrotizing Soft Tissue Infection",
        "Intraabdominal Infections",
        "Infection Joint"
      ],
      "interventions": [
        {
          "name": "Blue Light",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 144,
      "start_date": "2024-10-29",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-11",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03482245"
    },
    {
      "nct_id": "NCT03694626",
      "title": "Objectively Diagnose and Monitor Treatment of Light Sensitivity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Photophobia",
        "Traumatic Brain Injury",
        "Migraine"
      ],
      "interventions": [
        {
          "name": "Pupillography",
          "type": "DEVICE"
        },
        {
          "name": "Ocular Coherence Tomography (OCT)",
          "type": "DEVICE"
        },
        {
          "name": "Wrist-watch sensor device",
          "type": "DEVICE"
        },
        {
          "name": "Videography",
          "type": "DEVICE"
        },
        {
          "name": "Electrophysiology",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Randy Kardon",
      "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": 120,
      "start_date": "2019-07-11",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-24",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03694626"
    },
    {
      "nct_id": "NCT03176485",
      "title": "Evaluation of Pathway Modulation by Raf, MEK, & Kinase Inhibitors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metastatic Cancer",
        "Melanoma",
        "Colon Cancer",
        "Differentiated Thyroid Cancer",
        "Hepatocellular Carcinoma",
        "Renal Cell Carcinoma",
        "Metastatic Melanoma",
        "HCC",
        "Metastatic Colon Cancer"
      ],
      "interventions": [
        {
          "name": "Solar Simulator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2014-10-17",
      "completion_date": "2018-11-01",
      "has_results": false,
      "last_update_posted_date": "2019-01-04",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03176485"
    },
    {
      "nct_id": "NCT02915081",
      "title": "Blue Light Therapy for Liver Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Kidney Injury",
        "Liver Injury",
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Blue light",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2017-01-01",
      "completion_date": "2018-12-31",
      "has_results": false,
      "last_update_posted_date": "2019-04-05",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02915081"
    },
    {
      "nct_id": "NCT03625765",
      "title": "Integrated Imaging System for In Vivo Visualization of Free Flap Perfusion Using Indocyanine Dye",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Reconstruction"
      ],
      "interventions": [
        {
          "name": "SmartGoggles",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2019-11-22",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-11-12",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03625765"
    },
    {
      "nct_id": "NCT04265547",
      "title": "Family-Based Intervention Study of the Effects of Environmental Exposures on Breast Tissue Composition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer Risk"
      ],
      "interventions": [
        {
          "name": "Breast Cancer Risk Reduction Household Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 65 Years · Female only"
      },
      "enrollment_count": 32,
      "start_date": "2020-01-25",
      "completion_date": "2020-11-21",
      "has_results": false,
      "last_update_posted_date": "2025-09-23",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04265547"
    },
    {
      "nct_id": "NCT03007589",
      "title": "Natural Sunlight Protection and Simulated Sunlight Protection Offered by Sunscreens and Fabrics",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sunburn",
        "Sun Damaged Skin",
        "Overexposure to Sun Rays"
      ],
      "interventions": [
        {
          "name": "otc sunscreens",
          "type": "DRUG"
        },
        {
          "name": "sun protection fabrics",
          "type": "OTHER"
        },
        {
          "name": "Optical Filters",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Sun Protection Foundation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "15 Years to 90 Years"
      },
      "enrollment_count": 200,
      "start_date": "2014-04",
      "completion_date": "2040-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-15",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Waimea, Hawaii • Seattle, Washington",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Waimea",
          "state": "Hawaii"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03007589"
    },
    {
      "nct_id": "NCT02720211",
      "title": "Spectacle Tints and Thin-Films for Migraine",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Headache Migraine Chronic"
      ],
      "interventions": [
        {
          "name": "Gray tinted spectacle lenses",
          "type": "DEVICE"
        },
        {
          "name": "Thin-Film spectacle lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 10,
      "start_date": "2016-08",
      "completion_date": "2018-11-06",
      "has_results": true,
      "last_update_posted_date": "2022-11-29",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Boston, Massachusetts • Great Neck, New York + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Great Neck",
          "state": "New York"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02720211"
    },
    {
      "nct_id": "NCT03761381",
      "title": "OCT Angiography and NRAI in Dementia",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Alzheimer Disease",
        "Dementia",
        "Mild Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Optical Coherence Tomography Angiography (OCTA) Imaging",
          "type": "DEVICE"
        },
        {
          "name": "Noninvasive Retinal Amyloid Imaging (NRAI)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2018-09-14",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2025-09-12",
      "last_synced_at": "2026-09-08T04:58:25.533Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03761381"
    }
  ]
}