{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronobiology",
    "query": {
      "condition": "Chronobiology"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 137,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronobiology&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T10:07:24.394Z",
  "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": "NCT03556878",
      "title": "Implementing and Sustaining a Transdiagnostic Sleep and Circadian Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorders, Circadian Rhythm",
        "Sleep Disorder",
        "Acceptability",
        "Feasibility",
        "Adaptation",
        "Implementation Research"
      ],
      "interventions": [
        {
          "name": "Fitted Transdiagnostic Sleep and Circadian intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Berkeley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2018-07-20",
      "completion_date": "2018-12-01",
      "has_results": false,
      "last_update_posted_date": "2019-04-22",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03556878"
    },
    {
      "nct_id": "NCT03198754",
      "title": "Programmed Environmental Illumination (PEI) of Hospital Rooms to Prevent/Reduce Cancer-Related Fatigue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer-related Problem/Condition",
        "Depression",
        "Circadian Rhythm Disorders"
      ],
      "interventions": [
        {
          "name": "PEI Experimental Light",
          "type": "DEVICE"
        },
        {
          "name": "Comparison Light",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2016-07-22",
      "completion_date": "2019-01-23",
      "has_results": true,
      "last_update_posted_date": "2020-08-11",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03198754"
    },
    {
      "nct_id": "NCT02954809",
      "title": "Feasibility of Bright Light Therapy on Fatigue, Sleep and Circadian Activity Rhythms in Lung Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fatigue",
        "Sleep Disturbance",
        "Circadian Dysregulation"
      ],
      "interventions": [
        {
          "name": "Morning bright light therapy",
          "type": "DEVICE"
        },
        {
          "name": "Dim light",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "State University of New York at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2016-10",
      "completion_date": "2018-01",
      "has_results": true,
      "last_update_posted_date": "2025-05-01",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02954809"
    },
    {
      "nct_id": "NCT00723580",
      "title": "Actigraphic Analysis of Treatment Response",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorders, Circadian Rhythm",
        "Insomnia",
        "Psychomotor Agitation"
      ],
      "interventions": [
        {
          "name": "risperidone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Child Psychopharmacology Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "10 Years",
        "sex": "FEMALE",
        "summary": "2 Years to 10 Years · Female only"
      },
      "enrollment_count": 1,
      "start_date": "2008-05",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2015-08-18",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "Fargo, North Dakota",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00723580"
    },
    {
      "nct_id": "NCT00814502",
      "title": "Zolpidem CR and Hospitalized Patients With Dementia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dementia",
        "Alzheimer Disease",
        "Dementia, Vascular",
        "Sleep Disorders",
        "Circadian Dysregulation"
      ],
      "interventions": [
        {
          "name": "Zolpidem CR",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "60 Years to 99 Years"
      },
      "enrollment_count": 20,
      "start_date": "2008-12",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2017-05-22",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00814502"
    },
    {
      "nct_id": "NCT00671190",
      "title": "Safety and Efficacy of Ramelteon in Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "Ramelteon",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 75,
      "start_date": "2005-03",
      "completion_date": "2005-05",
      "has_results": false,
      "last_update_posted_date": "2012-02-28",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 13,
      "location_summary": "Hot Springs, Arkansas • Los Angeles, California • San Diego, California + 10 more",
      "locations": [
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00671190"
    },
    {
      "nct_id": "NCT04300569",
      "title": "A Study to Determine the Signs and Symptoms That Impact Daily Life of Participants With Irregular Sleep-Wake Rhythm Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Irregular Sleep Wake Rhythm Disorder"
      ],
      "interventions": [
        {
          "name": "Non-interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 37,
      "start_date": "2020-07-09",
      "completion_date": "2020-09-07",
      "has_results": false,
      "last_update_posted_date": "2020-10-27",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 6,
      "location_summary": "Costa Mesa, California • San Diego, California • Miami, Florida + 3 more",
      "locations": [
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04300569"
    },
    {
      "nct_id": "NCT05805657",
      "title": "Implementing and Sustaining a Sleep Treatment to Improve Community Mental Health Part 2: Train-the-Trainer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorder",
        "Circadian Dysregulation"
      ],
      "interventions": [
        {
          "name": "Standard Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Adapted Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care Delayed Treatment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of California, Berkeley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 196,
      "start_date": "2020-12-14",
      "completion_date": "2024-05-08",
      "has_results": true,
      "last_update_posted_date": "2025-10-23",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 9,
      "location_summary": "Concord, California • Fairfield, California • Hanford, California + 6 more",
      "locations": [
        {
          "city": "Concord",
          "state": "California"
        },
        {
          "city": "Fairfield",
          "state": "California"
        },
        {
          "city": "Hanford",
          "state": "California"
        },
        {
          "city": "Lucerne",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05805657"
    },
    {
      "nct_id": "NCT00900159",
      "title": "Effects of Daytime Eszopiclone Administration in Shift Workers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Shift-Work Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "eszopiclone",
          "type": "DRUG"
        },
        {
          "name": "matching placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "20 Years to 50 Years"
      },
      "enrollment_count": 24,
      "start_date": "2009-05",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2017-08-30",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00900159"
    },
    {
      "nct_id": "NCT04373538",
      "title": "Improving Well-being by Improving Memory for Treatment for Sleep and Circadian Dysfunction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorder",
        "Circadian Dysregulation"
      ],
      "interventions": [
        {
          "name": "Trans-C for sleep and circadian function + Memory Support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Berkeley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2020-05-01",
      "completion_date": "2021-06-25",
      "has_results": false,
      "last_update_posted_date": "2021-09-29",
      "last_synced_at": "2026-07-22T10:07:24.394Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04373538"
    }
  ]
}