{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Circadian+Rhythm+Sleep+Disorder+of+Shift+Work+Type",
    "query": {
      "condition": "Circadian Rhythm Sleep Disorder of Shift Work Type"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:13:55.711Z",
  "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": "NCT05965609",
      "title": "Optimizing Sleep Health in Nurses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Circadian Rhythm Sleep-Wake Disorders, Shift Work Type",
        "Sleep Initiation and Maintenance Disorders"
      ],
      "interventions": [
        {
          "name": "CBTI",
          "type": "BEHAVIORAL"
        },
        {
          "name": "MRTI",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Oregon 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": 60,
      "start_date": "2023-12-08",
      "completion_date": "2026-03-03",
      "has_results": false,
      "last_update_posted_date": "2026-04-06",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Corvallis, Oregon",
      "locations": [
        {
          "city": "Corvallis",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05965609"
    },
    {
      "nct_id": "NCT07494084",
      "title": "Sleep Loss and Circadian Misalignment - Mechanisms of Insulin Resistance",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Shift Work Schedule",
        "Circadian Rhythm",
        "Insulin Resistance",
        "Circadian Misalignment"
      ],
      "interventions": [
        {
          "name": "Metyrapone And Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Dextrose",
          "type": "DRUG"
        },
        {
          "name": "insulin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 48,
      "start_date": "2026-07-01",
      "completion_date": "2029-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07494084"
    },
    {
      "nct_id": "NCT04966351",
      "title": "Countermeasures to Circadian Misalignment",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Circadian Rhythm Sleep Disorder of Shift Work Type",
        "Metabolic Disease",
        "Insulin Sensitivity"
      ],
      "interventions": [
        {
          "name": "Time-restricted feeding",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Circadian Misalignment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Colorado State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 32,
      "start_date": "2021-07-07",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-07-24",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04966351"
    },
    {
      "nct_id": "NCT05091021",
      "title": "Skeletal Effects of Chronic Night Shift",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoporosis",
        "Circadian Rhythm Sleep Disorder, Shift Work Type"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Colorado, Denver",
      "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": 59,
      "start_date": "2021-10-27",
      "completion_date": "2026-02-19",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05091021"
    },
    {
      "nct_id": "NCT06550115",
      "title": "Impact of Circulating and Tissue-specific Lipids on Vascular Function and Insulin Sensitivity in Chronic Night Shift Workers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Circadian Rhythm Sleep Disorder of Shift Work Type",
        "Metabolic Disease",
        "Insulin Sensitivity",
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Time-restricted eating",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control eating",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Colorado State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 50,
      "start_date": "2024-03-01",
      "completion_date": "2029-06",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06550115"
    },
    {
      "nct_id": "NCT04468672",
      "title": "Eating Behaviors in Shift Workers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Shift Work Type Circadian Rhythm Sleep Disorder",
        "Eating Behavior"
      ],
      "interventions": [
        {
          "name": "Portion size",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "20 Years to 55 Years"
      },
      "enrollment_count": 100,
      "start_date": "2020-12-14",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-02-25",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04468672"
    },
    {
      "nct_id": "NCT04955431",
      "title": "Circadian Rhythm Disruption Effects on Smoke Inhalation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation",
        "Sleep Deprivation",
        "Circadian Rhythm Sleep Disorder, Shift Work Type",
        "Smoke Inhalation"
      ],
      "interventions": [
        {
          "name": "Sleep Restriction",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Normal Sleep",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Montana",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "44 Years",
        "sex": "MALE",
        "summary": "18 Years to 44 Years · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2022-01-24",
      "completion_date": "2022-04-17",
      "has_results": true,
      "last_update_posted_date": "2025-05-30",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04955431"
    },
    {
      "nct_id": "NCT03956745",
      "title": "Biomarkers for Circadian Timing in Healthy Adults",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sleep Wake Disorders",
        "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",
        "Shift-Work Sleep Disorder",
        "Shift Work Type Circadian Rhythm Sleep Disorder",
        "Delayed Phase Sleep Syndrome"
      ],
      "interventions": [
        {
          "name": "sleep-wake timing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "constant routine",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 15,
      "start_date": "2021-06-01",
      "completion_date": "2025-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-03",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03956745"
    },
    {
      "nct_id": "NCT03018912",
      "title": "Validating the Use of a Subjectively Reported Sleep Vital Sign",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obstructive Sleep Apnea (OSA)",
        "Insomnia",
        "Restless Leg Syndrome (RLS)",
        "Hypersomnia Type; Sleep Disorder",
        "Shift Work Sleep Disorders"
      ],
      "interventions": [
        {
          "name": "Sleep VS",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2018-10-22",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2022-07-06",
      "last_synced_at": "2026-05-22T08:13:55.711Z",
      "location_count": 1,
      "location_summary": "Fontana, California",
      "locations": [
        {
          "city": "Fontana",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03018912"
    }
  ]
}