{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fixed+Sleep+Duration",
    "query": {
      "intervention": "Fixed Sleep Duration"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 35,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fixed+Sleep+Duration&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T13:53:30.396Z",
  "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": "NCT01029015",
      "title": "Pilot Trial in Sleep Laboratory Setting to Compare the Physiology of Night Time Bladder Function in Subjects With Overactive Bladder (OAB) Versus Subjects That Have Insomnia and Healthy Normal Subjects",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bladder Function"
      ],
      "interventions": [
        {
          "name": "cystometry",
          "type": "PROCEDURE"
        },
        {
          "name": "polysomnography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Astellas Pharma Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2006-11",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2011-03-07",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01029015"
    },
    {
      "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": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07494084"
    },
    {
      "nct_id": "NCT03913988",
      "title": "Comparative Effectiveness of Three Lucid Dreaming and Sleep Hygiene Techniques",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anxiety"
      ],
      "interventions": [
        {
          "name": "Lucid Dream",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stress Reduction",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sleep Hygiene Techniques",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2019-06-01",
      "completion_date": "2019-09-21",
      "has_results": false,
      "last_update_posted_date": "2019-11-08",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03913988"
    },
    {
      "nct_id": "NCT02835261",
      "title": "Impact of Sleep Restriction in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep",
        "Cardiovascular Disease",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Sleep Restriction",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 75 Years · Female only"
      },
      "enrollment_count": 54,
      "start_date": "2016-09-01",
      "completion_date": "2021-02-25",
      "has_results": false,
      "last_update_posted_date": "2025-10-14",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02835261"
    },
    {
      "nct_id": "NCT05370469",
      "title": "Real-Time Monitoring of Symptoms in Lung Cancer Patients Receiving Oral Targeted Therapies",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lung Cancer",
        "EGFR Gene Mutation",
        "EGFR",
        "ALK Gene Mutation",
        "RET Gene Mutation",
        "MET Gene Mutation",
        "KRAS Mutation-Related Tumors",
        "BRAF",
        "ROS1 Gene Mutation"
      ],
      "interventions": [
        {
          "name": "Sensus Smartwatch Application",
          "type": "OTHER"
        },
        {
          "name": "RX Cap",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Sense",
          "type": "DEVICE"
        },
        {
          "name": "Surveys",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-08-25",
      "completion_date": "2026-05",
      "has_results": false,
      "last_update_posted_date": "2025-11-25",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05370469"
    },
    {
      "nct_id": "NCT04242524",
      "title": "The Impact of Bariatric Surgery on Adipocyte Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Syndrome",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Circadian Clock Alignment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Circadian Clock Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 28,
      "start_date": "2015-03-26",
      "completion_date": "2025-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-02-13",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04242524"
    },
    {
      "nct_id": "NCT03911154",
      "title": "Evaluation of SmartSleep Technology for Improving the Efficiency and Restorative Quality of Sleep in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep"
      ],
      "interventions": [
        {
          "name": "Philips SmartSleep Technology--Continuous Fixed Interval modality",
          "type": "DEVICE"
        },
        {
          "name": "Philips SmartSleep Technology--Block modality",
          "type": "DEVICE"
        },
        {
          "name": "Philips SmartSleep Technology--In-Phase Adjustable modality",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "30 Years to 55 Years"
      },
      "enrollment_count": 9,
      "start_date": "2019-04-29",
      "completion_date": "2021-06-30",
      "has_results": true,
      "last_update_posted_date": "2022-10-06",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03911154"
    },
    {
      "nct_id": "NCT04973267",
      "title": "Game Plan for PrEP",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Immunodeficiency Virus Exposure",
        "Alcohol; Harmful Use"
      ],
      "interventions": [
        {
          "name": "Game Plan for PrEP",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Attention-Matched Control Lifestyle Habits Videos",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 73,
      "start_date": "2021-07-01",
      "completion_date": "2023-02-28",
      "has_results": true,
      "last_update_posted_date": "2024-08-28",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04973267"
    },
    {
      "nct_id": "NCT03959202",
      "title": "A Personalized Behavioral Intervention to Improve Physical Activity, Sleep and Cognition in Sedentary Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sleep"
      ],
      "interventions": [
        {
          "name": "ELDERFITNESS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 129,
      "start_date": "2019-07-11",
      "completion_date": "2023-02-28",
      "has_results": false,
      "last_update_posted_date": "2023-03-08",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03959202"
    },
    {
      "nct_id": "NCT01739712",
      "title": "Sleep Intervention for Youth With Type 1 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Sleep extension",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fixed Sleep Duration",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "10 Years to 16 Years"
      },
      "enrollment_count": 114,
      "start_date": "2012-10",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2016-11-21",
      "last_synced_at": "2026-09-03T13:53:30.396Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01739712"
    }
  ]
}