{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+light+exposure",
    "query": {
      "intervention": "Placebo light exposure"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 38,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+light+exposure&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T21:49:13.850Z",
  "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": "NCT05596474",
      "title": "Effect of Beet-root Juice and PBM Treatments on Muscle Fatigue",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Care Utilization",
        "Healthy Aging"
      ],
      "interventions": [
        {
          "name": "Beet-root juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "red-light therapy",
          "type": "RADIATION"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "sham light",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "RADIATION"
      ],
      "sponsor": "Wake Forest University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2022-09-09",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2024-03-20",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05596474"
    },
    {
      "nct_id": "NCT05340881",
      "title": "Systematic Light Exposure in Pediatric Brain Tumor Survivors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Tumor"
      ],
      "interventions": [
        {
          "name": "Bright Light Exposure",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dim Light Exposure",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "10 Years to 18 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-10-14",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2025-09-18",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05340881"
    },
    {
      "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": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06295458"
    },
    {
      "nct_id": "NCT02630472",
      "title": "Topical Irrigation Therapy for CRS",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Rhinitis",
        "Sinusitis"
      ],
      "interventions": [
        {
          "name": "Quinine Sulfate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2015-10",
      "completion_date": "2017-05-04",
      "has_results": true,
      "last_update_posted_date": "2019-03-13",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02630472"
    },
    {
      "nct_id": "NCT06165016",
      "title": "Far Red Light to Improve Functioning in PAD",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Artery Disease",
        "Peripheral Vascular Disease",
        "Aging",
        "Walking, Difficulty"
      ],
      "interventions": [
        {
          "name": "Far red light therapy",
          "type": "DEVICE"
        },
        {
          "name": "Sham light therapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2024-02-14",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 2,
      "location_summary": "Birmingham, Alabama • Chicago, Illinois",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06165016"
    },
    {
      "nct_id": "NCT00679666",
      "title": "Corneal Crosslinking in Keratoconus and Corneal Ectasia",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Progressive Keratoconus",
        "Corneal Ectasia"
      ],
      "interventions": [
        {
          "name": "Riboflavin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio 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": 0,
      "start_date": "2008-04",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2017-04-20",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 2,
      "location_summary": "Columbus, Ohio • Dublin, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Dublin",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00679666"
    },
    {
      "nct_id": "NCT00387179",
      "title": "Effectiveness of Combining Light and Non-Light Treatments for Jet Lag and Sleep Disorders",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorders, Circadian Rhythm"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DRUG"
        },
        {
          "name": "Methylxanthine",
          "type": "DRUG"
        },
        {
          "name": "Light Therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 48,
      "start_date": "2006-10",
      "completion_date": "2010-03",
      "has_results": false,
      "last_update_posted_date": "2009-08-25",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Boulder, Colorado",
      "locations": [
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00387179"
    },
    {
      "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": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Des Moines, Iowa",
      "locations": [
        {
          "city": "Des Moines",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05314647"
    },
    {
      "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": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Martinez, California",
      "locations": [
        {
          "city": "Martinez",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00539175"
    },
    {
      "nct_id": "NCT05173818",
      "title": "Hyperbaric Oxygen Effects on Persistent Post-concussive Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Persistent Post-concussive Syndrome",
        "Concussion Post Syndrome"
      ],
      "interventions": [
        {
          "name": "Hyperbaric oxygen at 1.5 ATA",
          "type": "DRUG"
        },
        {
          "name": "Sham treatment",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Essentia Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2022-06-28",
      "completion_date": "2025-08-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-24",
      "last_synced_at": "2026-09-03T21:49:13.850Z",
      "location_count": 1,
      "location_summary": "Fargo, North Dakota",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05173818"
    }
  ]
}