{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Leptin+Levels",
    "query": {
      "condition": "Leptin Levels"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T03:55:23.053Z",
  "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": "NCT01797042",
      "title": "A Comparison of the Metabolic Effects of Fructose, Glucose, High Fructose Corn Syrup and Sucrose at Normal Population Consumed Levels in Adults Aged 20-60 Years Old",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Dietary Compliance",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rippe Lifestyle Institute",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "20 Years to 60 Years"
      },
      "enrollment_count": 366,
      "start_date": "2012-03",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2014-09-30",
      "last_synced_at": "2026-05-22T03:55:23.053Z",
      "location_count": 1,
      "location_summary": "Celebration, Florida",
      "locations": [
        {
          "city": "Celebration",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01797042"
    },
    {
      "nct_id": "NCT01659385",
      "title": "Leptin Levels in Papillary Thyroid Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thyroid Cancer, Papillary",
        "Leptin Levels"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "19 Years to 75 Years · Female only"
      },
      "enrollment_count": 18,
      "start_date": "2012-08-07",
      "completion_date": "2013-04-25",
      "has_results": false,
      "last_update_posted_date": "2023-09-06",
      "last_synced_at": "2026-05-22T03:55:23.053Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01659385"
    },
    {
      "nct_id": "NCT07322679",
      "title": "Dihydroberberine Effects on Body Composition and Metabolic Health in Healthy Adults",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Adult Subjects"
      ],
      "interventions": [
        {
          "name": "Placebo （Microcrystalline Cellulose）",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dihydroberberine（DHB）",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Nanjing Nutrabuilding Bio-tech Co., Ltd.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "35 Years to 55 Years"
      },
      "enrollment_count": 120,
      "start_date": "2025-12-15",
      "completion_date": "2026-09-25",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-05-22T03:55:23.053Z",
      "location_count": 1,
      "location_summary": "Addison, Illinois",
      "locations": [
        {
          "city": "Addison",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07322679"
    },
    {
      "nct_id": "NCT01067573",
      "title": "The Role of Serum Leptin Levels in Multiple Sclerosis Disease Activity While on Interferon Beta 1a (Rebif) Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 20,
      "start_date": "2009-12",
      "completion_date": "2011-07",
      "has_results": false,
      "last_update_posted_date": "2012-06-18",
      "last_synced_at": "2026-05-22T03:55:23.053Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01067573"
    }
  ]
}