{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fixed+restricted+bedtimes",
    "query": {
      "intervention": "Fixed restricted bedtimes"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T17:29:19.783Z",
  "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": "NCT04564807",
      "title": "Testing an Online Insomnia Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Use Disorder",
        "Insomnia"
      ],
      "interventions": [
        {
          "name": "Web-Based Insomnia Education Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SHUTi Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Jessica Weafer",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 71,
      "start_date": "2020-09-25",
      "completion_date": "2022-05-31",
      "has_results": false,
      "last_update_posted_date": "2022-10-25",
      "last_synced_at": "2026-09-05T17:29:19.783Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04564807"
    },
    {
      "nct_id": "NCT02960776",
      "title": "Impact of Sleep Restriction on Performance in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep",
        "Obesity",
        "Sleep Restriction"
      ],
      "interventions": [
        {
          "name": "Sleep Restriction (SR)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "20 Years to 75 Years"
      },
      "enrollment_count": 45,
      "start_date": "2016-11-01",
      "completion_date": "2023-07-05",
      "has_results": true,
      "last_update_posted_date": "2025-04-03",
      "last_synced_at": "2026-09-05T17:29:19.783Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02960776"
    },
    {
      "nct_id": "NCT01642719",
      "title": "Chronic Moderate Sleep Restriction in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sleep Disturbance",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Sleep restriction",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Non-sleep restriction",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 200,
      "start_date": "2012-07-01",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2019-07-18",
      "last_synced_at": "2026-09-05T17:29:19.783Z",
      "location_count": 4,
      "location_summary": "Tucson, Arizona • Los Angeles, California • Brooklyn, New York + 1 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01642719"
    },
    {
      "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": "2026-09-05T17:29:19.783Z",
      "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": "NCT05630118",
      "title": "Online Insomnia Intervention to Reduce Alcohol Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Use Disorder",
        "Heavy Drinking"
      ],
      "interventions": [
        {
          "name": "SHUTi Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Web-Based Insomnia Education Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Jessica Weafer",
      "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": 113,
      "start_date": "2023-01-24",
      "completion_date": "2025-07-07",
      "has_results": true,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-09-05T17:29:19.783Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05630118"
    },
    {
      "nct_id": "NCT00989534",
      "title": "Extended Work Schedules, Sleep Loss and Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep"
      ],
      "interventions": [
        {
          "name": "Fixed restricted bedtimes",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sleep restriction with circadian misalignment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "21 Years to 39 Years"
      },
      "enrollment_count": 49,
      "start_date": "2003-01",
      "completion_date": "2009-09",
      "has_results": false,
      "last_update_posted_date": "2016-10-03",
      "last_synced_at": "2026-09-05T17:29:19.783Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00989534"
    }
  ]
}