{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Late+sleep",
    "query": {
      "intervention": "Late sleep"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 104,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Late+sleep&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T14:55:32.362Z",
  "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": "NCT04671797",
      "title": "Dinner Time 2: Effect of Delayed Eating or Sleeping on Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Early dinner",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Late Dinner",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Late Dinner + Late Sleep",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 41,
      "start_date": "2021-01-15",
      "completion_date": "2025-06-19",
      "has_results": false,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04671797"
    },
    {
      "nct_id": "NCT03255291",
      "title": "Communicating Multiple Disease Risks: A Translation of Risk Prediction Science",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Risk Assessment App",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Audio Recording - Sleep",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Surveys",
          "type": "OTHER"
        },
        {
          "name": "Audio Recording - Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text message reminders",
          "type": "OTHER"
        },
        {
          "name": "Text Message Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "30 Years to 64 Years"
      },
      "enrollment_count": 554,
      "start_date": "2017-06-27",
      "completion_date": "2019-01-03",
      "has_results": true,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03255291"
    },
    {
      "nct_id": "NCT02507791",
      "title": "Impact of Fitbit Plus Weight Management Program on Physical Activity and Metabolic Disease in Obese Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Fitbit Charge HR plus weekly phone calls to review physical activity data",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "7 Years to 18 Years"
      },
      "enrollment_count": 60,
      "start_date": "2015-05",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2022-02-15",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02507791"
    },
    {
      "nct_id": "NCT01396941",
      "title": "Effects of Sleep Duration and Architecture on Insulin Sensitivity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Sleep restriction",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "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": 10,
      "start_date": "2011-05",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2021-07-19",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01396941"
    },
    {
      "nct_id": "NCT04265456",
      "title": "A Phase 1 Study to Evaluate Pregabalin and Acetaminophen in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Pregabalin 100mg",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen 1300mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nevakar, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 63,
      "start_date": "2020-01-14",
      "completion_date": "2020-07-22",
      "has_results": false,
      "last_update_posted_date": "2020-08-05",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Pasadena, California",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04265456"
    },
    {
      "nct_id": "NCT05340881",
      "title": "Systematic Light Exposure in Pediatric Brain Tumor Survivors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Tumor"
      ],
      "interventions": [
        {
          "name": "Bright Light Exposure",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dim Light Exposure",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "10 Years to 18 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-10-14",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2025-09-18",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05340881"
    },
    {
      "nct_id": "NCT07329283",
      "title": "Nighttime Synchrony of Your Nutrition and Circadian Health",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep",
        "Metabolism Changes",
        "Circadian Rhythm",
        "Lifestyle Factors",
        "Sleep Hygiene",
        "Sleep Hygiene, Inadequate",
        "Sleep Deprivation",
        "Insufficient Sleep",
        "Circadian Misalignment",
        "Circadian Dysregulation",
        "Light Exposure"
      ],
      "interventions": [
        {
          "name": "Central Clock Misalignment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peripheral Misalignment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "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": 120,
      "start_date": "2025-12-19",
      "completion_date": "2031-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07329283"
    },
    {
      "nct_id": "NCT07391852",
      "title": "Circadian Light Exposure Adjustment for Restfulness",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Onset Latency"
      ],
      "interventions": [
        {
          "name": "Amber Tinted Glasses",
          "type": "DEVICE"
        },
        {
          "name": "Clear Glasses",
          "type": "DEVICE"
        },
        {
          "name": "Smart Lightbulbs",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Months",
        "maximum_age": "83 Months",
        "sex": "ALL",
        "summary": "60 Months to 83 Months"
      },
      "enrollment_count": 60,
      "start_date": "2026-01-15",
      "completion_date": "2030-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-06",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07391852"
    },
    {
      "nct_id": "NCT05471960",
      "title": "Neuroplasticity in RBD",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "REM Sleep Behavior Disorder"
      ],
      "interventions": [
        {
          "name": "Natural progression over time",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 86,
      "start_date": "2023-04-21",
      "completion_date": "2027-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05471960"
    },
    {
      "nct_id": "NCT02347020",
      "title": "Impact of Sleep and Meal Timing on Food Intake Regulation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Diabetes Mellitus, Type II",
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Normal Sleep/ Normal Meal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Normal Sleep/ Late Meal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Late Sleep/ Normal Meal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Late Sleep/ Late Meal",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "20 Years to 49 Years"
      },
      "enrollment_count": 6,
      "start_date": "2014-10",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2016-05-12",
      "last_synced_at": "2026-09-02T14:55:32.362Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02347020"
    }
  ]
}