{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Circadian+Rhythms&page=3",
    "query": {
      "condition": "Circadian Rhythms",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 258,
    "total_pages": 26,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Circadian+Rhythms&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Circadian+Rhythms&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T02:35:18.303Z",
  "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": "NCT05309577",
      "title": "Self-Care for Dementia Caregivers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging",
        "Mental Disorder",
        "Eating, Healthy",
        "Physical Inactivity",
        "Prodromal Symptoms",
        "Sleep",
        "Alzheimer Disease",
        "Dementia",
        "Circadian Rhythm Disorders"
      ],
      "interventions": [
        {
          "name": "Behavioral Self-Monitoring + Motivational Interviewing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "50 Years to 99 Years"
      },
      "enrollment_count": 21,
      "start_date": "2023-03-07",
      "completion_date": "2025-03-10",
      "has_results": true,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05309577"
    },
    {
      "nct_id": "NCT00078312",
      "title": "Armodafinil (CEP-10953) for Treatment of Narcolepsy, Obstructive Sleep Apnea/Hypopnea Syndrome, or Chronic Shift Work Sleep Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Narcolepsy",
        "Sleep Apnea, Obstructive",
        "Sleep Apnea Syndromes",
        "Shift-Work Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "CEP-10953 (Armodafinil)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cephalon",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 328,
      "start_date": "2004-01",
      "completion_date": "2006-07",
      "has_results": true,
      "last_update_posted_date": "2013-07-19",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 41,
      "location_summary": "Peoria, Arizona • Phoenix, Arizona • Tucson, Arizona + 35 more",
      "locations": [
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00078312"
    },
    {
      "nct_id": "NCT01792583",
      "title": "The Nuvigil and Provigil Pregnancy Registry",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Narcolepsy",
        "Obstructive Sleep Apnea",
        "Shift Work Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "Modafinil/armodafinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cephalon, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 191,
      "start_date": "2009-06-30",
      "completion_date": "2023-11-30",
      "has_results": false,
      "last_update_posted_date": "2024-02-05",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "West Chester, Pennsylvania",
      "locations": [
        {
          "city": "West Chester",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01792583"
    },
    {
      "nct_id": "NCT06356337",
      "title": "A Light Exposure Tracker Designed to Improve Circadian Rhythms - Aim 1",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alzheimer's Disease",
        "Mild Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Light goggles",
          "type": "DEVICE"
        },
        {
          "name": "Daily reminder test message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2024-02-22",
      "completion_date": "2024-08-15",
      "has_results": false,
      "last_update_posted_date": "2025-10-14",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "Menands, New York",
      "locations": [
        {
          "city": "Menands",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06356337"
    },
    {
      "nct_id": "NCT04300569",
      "title": "A Study to Determine the Signs and Symptoms That Impact Daily Life of Participants With Irregular Sleep-Wake Rhythm Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Irregular Sleep Wake Rhythm Disorder"
      ],
      "interventions": [
        {
          "name": "Non-interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 37,
      "start_date": "2020-07-09",
      "completion_date": "2020-09-07",
      "has_results": false,
      "last_update_posted_date": "2020-10-27",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 6,
      "location_summary": "Costa Mesa, California • San Diego, California • Miami, Florida + 3 more",
      "locations": [
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04300569"
    },
    {
      "nct_id": "NCT06809335",
      "title": "A Pilot of a Personalized Circadian mHealth to Improve Sleep in Night Shift Workers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Shift Work Sleep Disorder"
      ],
      "interventions": [
        {
          "name": "Personalized circadian mHealth",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2023-10-23",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-03-02",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "Novi, Michigan",
      "locations": [
        {
          "city": "Novi",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06809335"
    },
    {
      "nct_id": "NCT04098497",
      "title": "Modeling Mood Course to Detect Markers for Effective Adaptive Interventions- Aim 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Bipolar Disorder",
        "Psychosocial Intervention"
      ],
      "interventions": [
        {
          "name": "Mobile intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": "2019-09-13",
      "completion_date": "2020-10-21",
      "has_results": true,
      "last_update_posted_date": "2022-01-03",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04098497"
    },
    {
      "nct_id": "NCT04753190",
      "title": "Light Timing Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronobiology",
        "Light",
        "Sleep",
        "Circadian Rhythm",
        "Adolescence"
      ],
      "interventions": [
        {
          "name": "Baseline Sleep Satiation and Phase Stabilization",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Gradually Shifted Sleep",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "18 Years to 20 Years"
      },
      "enrollment_count": 84,
      "start_date": "2022-08-22",
      "completion_date": "2025-05-18",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04753190"
    },
    {
      "nct_id": "NCT07410585",
      "title": "Testing the Effectiveness of an Intervention That Aligns Circadian Rhythm With Daily Activities on Student Flourishing",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronotypes and Health"
      ],
      "interventions": [
        {
          "name": "Use of Owaves App",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2026-01-05",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-13",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07410585"
    },
    {
      "nct_id": "NCT03556878",
      "title": "Implementing and Sustaining a Transdiagnostic Sleep and Circadian Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disorders, Circadian Rhythm",
        "Sleep Disorder",
        "Acceptability",
        "Feasibility",
        "Adaptation",
        "Implementation Research"
      ],
      "interventions": [
        {
          "name": "Fitted Transdiagnostic Sleep and Circadian intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Berkeley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2018-07-20",
      "completion_date": "2018-12-01",
      "has_results": false,
      "last_update_posted_date": "2019-04-22",
      "last_synced_at": "2026-10-22T02:35:18.303Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03556878"
    }
  ]
}