{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+light+exposure&page=2",
    "query": {
      "intervention": "Placebo light exposure",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 38,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+light+exposure&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+light+exposure&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T14:09:09.170Z",
  "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": "NCT05802680",
      "title": "Neurocognitive Effects of Non-Invasive Near-Infrared Light Stimulation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Attention Deficit Hyperactivity Disorder",
        "Attention Difficulties",
        "Attention Deficit",
        "Cognitive Deficit",
        "Wellness"
      ],
      "interventions": [
        {
          "name": "Transcranial photobiomodulation",
          "type": "DEVICE"
        },
        {
          "name": "Sham transcranial photobiomodulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Francisco Gonzalez-Lima, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2022-02-09",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05802680"
    },
    {
      "nct_id": "NCT05314647",
      "title": "Lutein Supplementation in Healthy Children",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Eye Fatigue",
        "Diet, Healthy",
        "Cognitive Change"
      ],
      "interventions": [
        {
          "name": "lutein",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Northcentral University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "8 Years to 16 Years"
      },
      "enrollment_count": 59,
      "start_date": "2023-07-15",
      "completion_date": "2024-05",
      "has_results": false,
      "last_update_posted_date": "2023-11-30",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Des Moines, Iowa",
      "locations": [
        {
          "city": "Des Moines",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05314647"
    },
    {
      "nct_id": "NCT01042587",
      "title": "Effect of Bright Light Treatment On Elders In a Long Term Care Environment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Behavioral Responses to Bright Light Therapy in Elders"
      ],
      "interventions": [
        {
          "name": "exposure to bright light",
          "type": "OTHER"
        },
        {
          "name": "low luminosity red light",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2010-03",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2010-08-11",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Elizabethtown, Pennsylvania",
      "locations": [
        {
          "city": "Elizabethtown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01042587"
    },
    {
      "nct_id": "NCT00539175",
      "title": "Treatment of Painful Diabetic Neuropathy With Photon Stimulation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetic Neuropathy, Painful",
        "Diabetic Neuralgia",
        "Diabetic Polyneuropathy",
        "Diabetic Mononeuropathy"
      ],
      "interventions": [
        {
          "name": "infrared light",
          "type": "DEVICE"
        },
        {
          "name": "infrared light; placebo",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "East Bay Institute for Research and Education",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 120,
      "start_date": "2004-10",
      "completion_date": "2006-10",
      "has_results": false,
      "last_update_posted_date": "2007-10-04",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Martinez, California",
      "locations": [
        {
          "city": "Martinez",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00539175"
    },
    {
      "nct_id": "NCT05616819",
      "title": "Effect of Morning Light Exposure on Mood",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Suicidal Ideation",
        "Regulation, Emotion"
      ],
      "interventions": [
        {
          "name": "Active light exposure",
          "type": "OTHER"
        },
        {
          "name": "Placebo light exposure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 480,
      "start_date": "2023-07-01",
      "completion_date": "2026-01-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-04",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05616819"
    },
    {
      "nct_id": "NCT07002554",
      "title": "Bright Light Therapy for Depressed Geriatric Inpatients",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Unipolar Depression"
      ],
      "interventions": [
        {
          "name": "Bright light therapy",
          "type": "DEVICE"
        },
        {
          "name": "dim red light",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2025-11-14",
      "completion_date": "2027-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-16",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07002554"
    },
    {
      "nct_id": "NCT04049162",
      "title": "Blueberry Enhances Activity and Cognition Through Increased Vascular Efficiency",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sedentary Lifestyle",
        "Blood Pressure",
        "Arterial Stiffness",
        "Overweight and Obesity"
      ],
      "interventions": [
        {
          "name": "Blueberry Plus Exercise (BB-EX)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Blueberry Placebo Plus Exercise (P-EX)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 84,
      "start_date": "2019-09-20",
      "completion_date": "2022-11-22",
      "has_results": false,
      "last_update_posted_date": "2023-01-20",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04049162"
    },
    {
      "nct_id": "NCT04097730",
      "title": "Steroids and Cross-linking for Ulcer Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Keratitis Bacterial"
      ],
      "interventions": [
        {
          "name": "Moxifloxacin Ophthalmic",
          "type": "DRUG"
        },
        {
          "name": "Difluprednate Ophthalmic",
          "type": "DRUG"
        },
        {
          "name": "Riboflavin Ophthalmic",
          "type": "DRUG"
        },
        {
          "name": "Topical Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Thomas M. Lietman",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 280,
      "start_date": "2020-09-24",
      "completion_date": "2024-09-18",
      "has_results": false,
      "last_update_posted_date": "2025-02-03",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 2,
      "location_summary": "San Francisco, California • Miami, Florida",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04097730"
    },
    {
      "nct_id": "NCT06325150",
      "title": "The Impact of Light Exposure on Cognitive Function in Classrooms",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Light emitting glasses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Michigan State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2026-09-15",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "East Lansing, Michigan",
      "locations": [
        {
          "city": "East Lansing",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06325150"
    },
    {
      "nct_id": "NCT06295458",
      "title": "Gamma Sensory Flicker for Parkinson's Disease Patients With Freezing of Gait",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gait Disorders, Neurologic",
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "David Delight Plus Device",
          "type": "DEVICE"
        },
        {
          "name": "Sham Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 24,
      "start_date": "2024-07-08",
      "completion_date": "2026-05-04",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-30T14:09:09.170Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06295458"
    }
  ]
}