{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Melatonin+5+mg",
    "query": {
      "intervention": "Melatonin 5 mg"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 36,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Melatonin+5+mg&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T08:24:47.467Z",
  "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": "NCT02500017",
      "title": "Melatonin Treatment for Night-Eating Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Night-eating Syndrome"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Yale 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": 2,
      "start_date": "2015-09-24",
      "completion_date": "2017-04-25",
      "has_results": false,
      "last_update_posted_date": "2018-01-23",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02500017"
    },
    {
      "nct_id": "NCT00927030",
      "title": "Melatonin for Sleep in Children With Autism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autistic Disorder",
        "Insomnia"
      ],
      "interventions": [
        {
          "name": "supplemental liquid melatonin",
          "type": "DRUG"
        },
        {
          "name": "flavored liquid or liquid supplemental melatonin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "4 Years to 10 Years"
      },
      "enrollment_count": 17,
      "start_date": "2008-01",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2012-07-02",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00927030"
    },
    {
      "nct_id": "NCT07542756",
      "title": "A SMART Approach to Evaluating the Benefits of Common Prescription and OTC Medications for Insomnia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Insomnia",
        "Insomnia Disorder",
        "Chronic Insomnia",
        "Chronic Insomnia Disorder"
      ],
      "interventions": [
        {
          "name": "Sleep Hygiene Education",
          "type": "OTHER"
        },
        {
          "name": "Melatonin IR, 3 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Melatonin IR, 5 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Diphenhydramine, 25 mg",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine, 50 mg",
          "type": "DRUG"
        },
        {
          "name": "Doxepin, 3 mg",
          "type": "DRUG"
        },
        {
          "name": "Doxepin, 6 mg",
          "type": "DRUG"
        },
        {
          "name": "Trazodone, 50 mg",
          "type": "DRUG"
        },
        {
          "name": "Trazodone, 100 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem, 5 mg",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem, 10 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 1200,
      "start_date": "2026-05-01",
      "completion_date": "2032-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07542756"
    },
    {
      "nct_id": "NCT01489969",
      "title": "Sleep Laboratory Study to Investigate the Safety and Efficacy of Neu-P11 in Primary Insomnia Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Primary Insomnia"
      ],
      "interventions": [
        {
          "name": "Neu-P11",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neurim Pharmaceuticals Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 137,
      "start_date": "2011-12",
      "completion_date": "2013-01",
      "has_results": true,
      "last_update_posted_date": "2018-06-06",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 9,
      "location_summary": "San Diego, California • Hallandale, Florida • South Miami, Florida + 6 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Hallandale",
          "state": "Florida"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01489969"
    },
    {
      "nct_id": "NCT04421339",
      "title": "Melatonin for Huntington's Disease (HD) Gene Carriers With HD Related Sleep Disturbance - a Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Huntington Disease"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 15,
      "start_date": "2021-01-22",
      "completion_date": "2022-09-16",
      "has_results": false,
      "last_update_posted_date": "2023-05-15",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04421339"
    },
    {
      "nct_id": "NCT03464084",
      "title": "Interaction of Melatonin With MTNR1B Genotype on Glucose Control - Study 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glucose",
        "Circadian Rhythm",
        "Melatonin",
        "Genes",
        "Light"
      ],
      "interventions": [
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "melatonin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "bright light",
          "type": "OTHER"
        },
        {
          "name": "dim light",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 24,
      "start_date": "2018-02-17",
      "completion_date": "2022-07-19",
      "has_results": false,
      "last_update_posted_date": "2022-07-26",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03464084"
    },
    {
      "nct_id": "NCT05332717",
      "title": "TKA Melatonin and Sleep Quality",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arthroplasty",
        "Replacement",
        "Knee",
        "Sleep Initiation and Maintenance Disorders"
      ],
      "interventions": [
        {
          "name": "Melatonin 5 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo (Vitamin C)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 176,
      "start_date": "2022-01-10",
      "completion_date": "2022-04-30",
      "has_results": false,
      "last_update_posted_date": "2023-09-14",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05332717"
    },
    {
      "nct_id": "NCT02099331",
      "title": "Cardiac Surgery and the Risk of Atrial Fibrillation: an Intervention Trial Evaluating Melatonin",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for Melatonin)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-09",
      "completion_date": "2015-07-06",
      "has_results": false,
      "last_update_posted_date": "2021-08-12",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02099331"
    },
    {
      "nct_id": "NCT02654314",
      "title": "Prevention of Delirium in Inpatients Utilizing Melatonin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Delirium"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 277,
      "start_date": "2016-07",
      "completion_date": "2017-11-03",
      "has_results": true,
      "last_update_posted_date": "2022-03-21",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02654314"
    },
    {
      "nct_id": "NCT05382923",
      "title": "Facilitating Adjustment to Simulated Jet Lag",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Circadian Rhythm Sleep Disorder, Jet Lag Type"
      ],
      "interventions": [
        {
          "name": "Bright Light",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Bright Light + Exercise + Melatonin",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Arizona",
      "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": 36,
      "start_date": "2021-07-10",
      "completion_date": "2023-05",
      "has_results": false,
      "last_update_posted_date": "2022-05-19",
      "last_synced_at": "2026-09-03T08:24:47.467Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05382923"
    }
  ]
}