{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Biological+Clock+Disturbance",
    "query": {
      "condition": "Biological Clock Disturbance"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 125,
    "total_pages": 13,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Biological+Clock+Disturbance&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T00:28:45.435Z",
  "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": "NCT04021355",
      "title": "Timing of Sodium Intake and Nocturnal Sodium Excretion and Blood Pressure in Obese African Americans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Hypertension",
        "Circadian Dysregulation",
        "Salt; Excess"
      ],
      "interventions": [
        {
          "name": "Oral sodium supplementation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "25 Years to 45 Years"
      },
      "enrollment_count": 53,
      "start_date": "2020-07-14",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04021355"
    },
    {
      "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": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Boulder, Colorado",
      "locations": [
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00387179"
    },
    {
      "nct_id": "NCT01327040",
      "title": "Light Sensitization Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronobiology Disorders",
        "Circadian Rhythm Disorders",
        "Sleep Disorders, Circadian Rhythm"
      ],
      "interventions": [
        {
          "name": "light exposure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "21 Years to 30 Years"
      },
      "enrollment_count": 32,
      "start_date": "2010-10",
      "completion_date": "2020-12",
      "has_results": false,
      "last_update_posted_date": "2021-07-01",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01327040"
    },
    {
      "nct_id": "NCT05701969",
      "title": "Effect of Melatonin on Sleep Patterns of Resident Trainees During Night Float Shift",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sleep Disorders, Circadian Rhythm"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2022-05-30",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05701969"
    },
    {
      "nct_id": "NCT06644573",
      "title": "Evaluating the Efficacy and Safety of PROSOMNIA Sleep Therapy™ in Patients With Sleep Deprivation and Chronic Insomnia",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chronic Insomnia",
        "Sleep Deprivation",
        "REM Behavior Disorder",
        "REM Sleep Behavior Disorder",
        "REM Sleep Measurement",
        "Insomnia",
        "Insomnia Related to Specified Disorder",
        "Insomnia Due to Other Mental Disorder",
        "Insomnia Comorbid to Psychiatric Disorder",
        "Insomnia Due to Anxiety and Fear",
        "Insomnia Related to Another Mental Condition",
        "Insomnia Disorders",
        "Idiopathic Hypersomnia",
        "Sleep Disorders, Circadian Rhythm",
        "Post Trauma Nightmares",
        "PTSD - Post Traumatic Stress Disorder",
        "Sleep Quality",
        "Anesthesia",
        "Anxiety",
        "Depression",
        "Mental Health",
        "Alzheimer Disease or Associated Disorder",
        "Parkinsons",
        "Circadian Rhythm",
        "Circadian Dysregulation",
        "PTSD",
        "Post-Traumatic",
        "Post-Traumatic Stress Disorder Complex",
        "Military Combat Stress Reaction",
        "Sleep",
        "Military Activity",
        "Veterans",
        "Shift Work Sleep Disorder",
        "Menopause Related Conditions",
        "Pain",
        "Cancer Pain",
        "Athletes"
      ],
      "interventions": [
        {
          "name": "PROSOMNIA Sleep Therapy™ (PSTx)",
          "type": "PROCEDURE"
        },
        {
          "name": "Anesthesia-Induced Sleep Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Diprivan (propofol), Astra-Zeneca",
          "type": "DRUG"
        },
        {
          "name": "Continuous EEG Monitoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Nyree Penn",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 100,
      "start_date": "2025-11-01",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-28",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Aventura, Florida",
      "locations": [
        {
          "city": "Aventura",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06644573"
    },
    {
      "nct_id": "NCT04992611",
      "title": "Sleep Timing, Eating and Activity Measurement Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep",
        "Circadian Rhythm Disorders",
        "Dietary Habits"
      ],
      "interventions": [
        {
          "name": "Sleep Extension (Early)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sleep Extension (Late)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "14 Years to 18 Years"
      },
      "enrollment_count": 190,
      "start_date": "2021-07-16",
      "completion_date": "2025-07-26",
      "has_results": false,
      "last_update_posted_date": "2025-12-18",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04992611"
    },
    {
      "nct_id": "NCT02180451",
      "title": "Observational Study to Investigate the Melatonin and Cortisol Circadian Rhythms of Individuals With Smith-Magenis Syndrome (SMS)",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Smith Magenis Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Vanda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "6 Years to 50 Years"
      },
      "enrollment_count": 8,
      "start_date": "2014-06",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2016-03-25",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02180451"
    },
    {
      "nct_id": "NCT01557595",
      "title": "Blue Wavelength Light-blocking Glasses in ADHD-Insomnia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Attention Deficit Hyperactivity Disorder",
        "Delayed Sleep Phase Type Circadian Rhythm Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "Polarized glasses designed to filter out blue light",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2011-09",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2017-12-13",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01557595"
    },
    {
      "nct_id": "NCT03980340",
      "title": "Breath Biomarkers for Sleep Loss and Circadian Timing",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Shift-Work Sleep Disorder",
        "Shift Work Type Circadian Rhythm Sleep Disorder",
        "Sleep Disorders, Circadian Rhythm",
        "Sleep Disorders, Intrinsic",
        "Advanced Sleep Phase Syndrome (ASPS)",
        "Advanced Sleep Phase Syndrome",
        "Advanced Sleep Phase",
        "Delayed Sleep Phase",
        "Delayed Sleep Phase Syndrome",
        "Non-24 Hour Sleep-Wake Disorder",
        "Irregular Sleep-Wake Syndrome"
      ],
      "interventions": [
        {
          "name": "Short Nap Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No Nap Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "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": 5,
      "start_date": "2021-01-28",
      "completion_date": "2025-03-31",
      "has_results": false,
      "last_update_posted_date": "2025-08-03",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03980340"
    },
    {
      "nct_id": "NCT05463861",
      "title": "Lemborexant in Delayed Sleep Phase Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Delayed Sleep Phase Syndrome"
      ],
      "interventions": [
        {
          "name": "Lemborexant",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 71,
      "start_date": "2022-02-01",
      "completion_date": "2026-01-21",
      "has_results": false,
      "last_update_posted_date": "2026-03-02",
      "last_synced_at": "2026-06-11T00:28:45.435Z",
      "location_count": 1,
      "location_summary": "Redwood City, California",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05463861"
    }
  ]
}