{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=light&page=10",
    "query": {
      "intervention": "light",
      "page": 10
    },
    "page_size": 10
  },
  "pagination": {
    "page": 10,
    "page_size": 10,
    "total_count": 2795,
    "total_pages": 280,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=light&page=11&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=light&page=9&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T09:11:24.457Z",
  "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": "NCT04690504",
      "title": "Validation of Circadian Biomarkers in Patients With Sleep Disorders",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sleep Disorders, Circadian Rhythm",
        "Circadian Rhythm Disorders",
        "Circadian Rhythm Sleep Disorder",
        "Advanced Sleep Phase Syndrome (ASPS)",
        "Delayed Sleep Phase Syndrome",
        "Sleep Wake Disorders",
        "Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "dim light melatonin onset (DLMO)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 50,
      "start_date": "2021-11-02",
      "completion_date": "2024-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-08-06",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04690504"
    },
    {
      "nct_id": "NCT00269633",
      "title": "Research Study of Treatment for Winter Depression With Different Colors of Light",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Seasonal Affective Disorder"
      ],
      "interventions": [
        {
          "name": "Blue Light Box 467 nm",
          "type": "DEVICE"
        },
        {
          "name": "Red Light Box 657 nm",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2006-11",
      "completion_date": "2008-05",
      "has_results": true,
      "last_update_posted_date": "2016-03-28",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00269633"
    },
    {
      "nct_id": "NCT01028508",
      "title": "Prolonging Remission in Depressed Elderly (PRIDE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "lithium and Venlafaxine",
          "type": "DRUG"
        },
        {
          "name": "ECT",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 247,
      "start_date": "2010-01",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2017-04-11",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 10,
      "location_summary": "Augusta, Georgia • Rochester, Minnesota • Hoboken, New Jersey + 6 more",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Hoboken",
          "state": "New Jersey"
        },
        {
          "city": "Glen Oaks",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01028508"
    },
    {
      "nct_id": "NCT03313115",
      "title": "Sleep/Wake Protocol Implementation to Improve Sleep Quality in the ICU",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sleep Deprivation",
        "Delirium"
      ],
      "interventions": [
        {
          "name": "Sleep/Wake Protocol",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 685,
      "start_date": "2017-10-11",
      "completion_date": "2018-03-14",
      "has_results": false,
      "last_update_posted_date": "2023-04-25",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03313115"
    },
    {
      "nct_id": "NCT03727906",
      "title": "Sleep and Cardiovascular Health in Adolescence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insomnia Type; Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "No pre-sleep arousal manipulation",
          "type": "OTHER"
        },
        {
          "name": "pre-sleep arousal down-regulation",
          "type": "OTHER"
        },
        {
          "name": "pre-sleep arousal up-regulation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "SRI International",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "16 Years to 20 Years"
      },
      "enrollment_count": 115,
      "start_date": "2019-01-07",
      "completion_date": "2022-08-27",
      "has_results": false,
      "last_update_posted_date": "2023-05-01",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "Menlo Park, California",
      "locations": [
        {
          "city": "Menlo Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03727906"
    },
    {
      "nct_id": "NCT05295225",
      "title": "Green Light Exposure in Healthy Volunteers Exposure in Normal Human Volunteers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Green Light Emitting Diode",
          "type": "DEVICE"
        },
        {
          "name": "White Light Emitting Diode",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 30,
      "start_date": "2022-06-14",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-05",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05295225"
    },
    {
      "nct_id": "NCT00320242",
      "title": "Laser Light Cues for Gait Freezing in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "1 mo baseline before visual cue",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2006-04",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2017-07-14",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • New York, New York",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00320242"
    },
    {
      "nct_id": "NCT03417570",
      "title": "Cap Assisted Upper Endoscopy Versus High Definition White Light Endoscopy and Narrow Band Imaging Alone In The Detection Of Visible Lesions Barrett's Esophagus: A Randomized Tandem Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Barrett Esophagus"
      ],
      "interventions": [
        {
          "name": "Esophagogastroduodenoscopy with high definition-white light end endoscopy (HD-WLE) and narrow band imaging (NBI)",
          "type": "PROCEDURE"
        },
        {
          "name": "Olympus Disposable Distal Attachment Cap",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "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": 100,
      "start_date": "2017-12-22",
      "completion_date": "2021-11-17",
      "has_results": true,
      "last_update_posted_date": "2022-09-01",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03417570"
    },
    {
      "nct_id": "NCT06829979",
      "title": "Improving Night Shift Nurses' Health and Reducing Burnout",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Access to napping/relaxation room",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blue and green light blocking glasses",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 5,
      "start_date": "2025-05-23",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06829979"
    },
    {
      "nct_id": "NCT05784103",
      "title": "Comparison of Tissue Oxygenation Measurement Using Multimodal Devices",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oxygen Saturation"
      ],
      "interventions": [
        {
          "name": "Clarifi Modulum",
          "type": "DEVICE"
        },
        {
          "name": "Perimed PeriFlux 5000",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch Oxygen Sensor",
          "type": "DEVICE"
        },
        {
          "name": "Innovo iP 900AP",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Indiana University",
      "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": 20,
      "start_date": "2022-03-09",
      "completion_date": "2022-07-07",
      "has_results": true,
      "last_update_posted_date": "2023-11-29",
      "last_synced_at": "2026-10-20T09:11:24.457Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05784103"
    }
  ]
}