{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Seasonal+Affective+Disorder",
    "query": {
      "condition": "Seasonal Affective Disorder"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Seasonal+Affective+Disorder&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T07:02:56.814Z",
  "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": "NCT03691792",
      "title": "Optimizing Long-Term Outcomes for Winter Depression With CBT-SAD and Light Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Seasonal Affective Disorder"
      ],
      "interventions": [
        {
          "name": "Cognitive-Behavioral Therapy (CBT-SAD)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Light Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 141,
      "start_date": "2018-09-01",
      "completion_date": "2025-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-06-03",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03691792"
    },
    {
      "nct_id": "NCT00001485",
      "title": "Effects of Season on Melatonin Secretion in Healthy Men and Women and Patients With Seasonal Affective Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Seasonal Affective Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 116,
      "start_date": "1995-06",
      "completion_date": "2000-04",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001485"
    },
    {
      "nct_id": "NCT01714050",
      "title": "Cognitive-behavioral Therapy vs. Light Therapy for Preventing SAD Recurrence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Seasonal Affective Disorder (SAD)",
        "Winter Depression",
        "Major Depressive Disorder, Recurrent, With Seasonal Pattern"
      ],
      "interventions": [
        {
          "name": "Cognitive-Behavioral Therapy (CBT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Light Therapy (LT)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 177,
      "start_date": "2008-07",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2023-05-09",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01714050"
    },
    {
      "nct_id": "NCT01462305",
      "title": "30-Minute Light Exposure for the Treatment of Seasonal Affective Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Seasonal Affective Disorder"
      ],
      "interventions": [
        {
          "name": "goLITE",
          "type": "DEVICE"
        },
        {
          "name": "Control",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Philips Respironics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "21 Years to 64 Years"
      },
      "enrollment_count": 35,
      "start_date": "2012-01-06",
      "completion_date": "2012-04-02",
      "has_results": true,
      "last_update_posted_date": "2019-01-30",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 4,
      "location_summary": "Belmont, Massachusetts • Boston, Massachusetts • Minneapolis, Minnesota + 1 more",
      "locations": [
        {
          "city": "Belmont",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01462305"
    },
    {
      "nct_id": "NCT00770068",
      "title": "Examining the Link Between Depression and Seasonal Allergies",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Depression"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 100,
      "start_date": "2006-07-15",
      "completion_date": "2017-04-11",
      "has_results": false,
      "last_update_posted_date": "2019-11-21",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 2,
      "location_summary": "Washington D.C., District of Columbia • Baltimore, Maryland",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00770068"
    },
    {
      "nct_id": "NCT00016666",
      "title": "Clinical Trial of Propranolol for Seasonal Affective Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Seasonal Affective Disorder",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Propranolol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 70,
      "start_date": "2001-05-21",
      "completion_date": "2007-01-19",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00016666"
    },
    {
      "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": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00269633"
    },
    {
      "nct_id": "NCT03739671",
      "title": "Vitamin D Supplementation and Effects on Mood in Emergency Medicine Residents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Seasonal Mood Disorder"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "No Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Corewell Health South",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2018-10-01",
      "completion_date": "2020-04-30",
      "has_results": false,
      "last_update_posted_date": "2024-11-29",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Saint Joseph, Michigan",
      "locations": [
        {
          "city": "Saint Joseph",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03739671"
    },
    {
      "nct_id": "NCT04251000",
      "title": "Infrared Photomodulation Therapy for Seasonal Affective Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Seasonal Affective Disorder"
      ],
      "interventions": [
        {
          "name": "Joovv Mini",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "ProofPilot",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 60,
      "start_date": "2020-02-27",
      "completion_date": "2020-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-02-11",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04251000"
    },
    {
      "nct_id": "NCT00114322",
      "title": "Light-Emitting Diode (LED) Light for Seasonal Affective Disorder (SAD) Treatment",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Seasonal Affective Disorder"
      ],
      "interventions": [
        {
          "name": "light exposure from LED source at narrow 468 nm or broader 400-700 nm wavelength",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 24,
      "start_date": "2005-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2007-01-15",
      "last_synced_at": "2026-05-22T07:02:56.814Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00114322"
    }
  ]
}