{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estradiol+patch&page=2",
    "query": {
      "intervention": "Estradiol patch",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estradiol+patch&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T19:18:58.483Z",
  "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": "NCT05388656",
      "title": "Estrogen Variability and Irritability During the Menopause Transition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Menopause",
        "Irritable Mood"
      ],
      "interventions": [
        {
          "name": "Estradiol Patch, 0.1 mg/24 Hours Weekly Transdermal Film, Extended Release",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Progesterone 200 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "59 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 59 Years · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2022-06-15",
      "completion_date": "2025-01-17",
      "has_results": true,
      "last_update_posted_date": "2025-11-26",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05388656"
    },
    {
      "nct_id": "NCT00227942",
      "title": "Estrogen for Treating Depression in Menopausal Women With Hot Flashes and Insomnia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sleep Initiation and Maintenance Disorders",
        "Depression"
      ],
      "interventions": [
        {
          "name": "Estrogen Replacement Therapy",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hadine Joffe, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 60 Years · Female only"
      },
      "enrollment_count": 86,
      "start_date": "2003-08",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2014-05-26",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00227942"
    },
    {
      "nct_id": "NCT03689543",
      "title": "Estrogen Receptor Beta and Mood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Perimenopause-Related Depression"
      ],
      "interventions": [
        {
          "name": "Estradiol",
          "type": "DRUG"
        },
        {
          "name": "ER Beta Agonist",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Provera",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 65 Years · Female only"
      },
      "enrollment_count": 74,
      "start_date": "2019-05-23",
      "completion_date": "2024-09-09",
      "has_results": true,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03689543"
    },
    {
      "nct_id": "NCT06101303",
      "title": "Endometriosis Pain",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pelvic Pain",
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "Psychophysical assessment",
          "type": "OTHER"
        },
        {
          "name": "Psychophysical assessments of experimental pain",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood, urine and saliva samples",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Biopsy and surgery-related data.",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL",
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 45 Years · Female only"
      },
      "enrollment_count": 120,
      "start_date": "2023-09-29",
      "completion_date": "2029-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06101303"
    },
    {
      "nct_id": "NCT03003949",
      "title": "The Menopause Transition: Estrogen Variability, Stress Reactivity and Mood",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Perimenopausal Disorder",
        "Stress, Emotional"
      ],
      "interventions": [
        {
          "name": "Estradiol Patch, 0.1 Mg/24 Hours Weekly Transdermal Film, Extended Release",
          "type": "DRUG"
        },
        {
          "name": "Placebo Patch",
          "type": "DRUG"
        },
        {
          "name": "Progesterone Capsule",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 60 Years · Female only"
      },
      "enrollment_count": 82,
      "start_date": "2017-01-24",
      "completion_date": "2020-05-10",
      "has_results": true,
      "last_update_posted_date": "2021-03-26",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 2,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03003949"
    },
    {
      "nct_id": "NCT07739589",
      "title": "A Postmarketing Open-Label Study to Assess Residual Levonorgestrel (LNG) and Ethinyl Estradiol (EE) Content of TWIRLA® (Levonorgestrel and Ethinyl Estradiol) Transdermal System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Residual Drug Amount of EE and LNG"
      ],
      "interventions": [
        {
          "name": "Twirla® (Levonorgestrel/Ethinyl Estradiol) Transdermal System",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Insud Pharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 28,
      "start_date": "2021-10-25",
      "completion_date": "2021-11-16",
      "has_results": true,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "Fair Lawn, New Jersey",
      "locations": [
        {
          "city": "Fair Lawn",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07739589"
    },
    {
      "nct_id": "NCT00206622",
      "title": "Efficacy and Safety Study in Postmenopausal Women to Determine the Lowest Effective Dose for Relief of Moderate to Severe Hot-Flushes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hot Flashes"
      ],
      "interventions": [
        {
          "name": "Climara PRO (Estradiol / Levonorgestrel transdermal)",
          "type": "DRUG"
        },
        {
          "name": "Menostar (Estradiol transdermal)",
          "type": "DRUG"
        },
        {
          "name": "Placebo transdermal",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 425,
      "start_date": "2004-12",
      "completion_date": "2006-02",
      "has_results": false,
      "last_update_posted_date": "2009-05-29",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 45,
      "location_summary": "Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 38 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fair Oaks",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00206622"
    },
    {
      "nct_id": "NCT03498313",
      "title": "Unique Effects of Perimenstrual Estradiol or Progesterone Supplementation on Perimenstrual Suicidality",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Suicidal Ideation"
      ],
      "interventions": [
        {
          "name": "Transdermal Estradiol + Placebo",
          "type": "DRUG"
        },
        {
          "name": "Oral Micronized Progesterone + Placebo",
          "type": "DRUG"
        },
        {
          "name": "Placebos",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2018-07-27",
      "completion_date": "2021-05-09",
      "has_results": true,
      "last_update_posted_date": "2022-09-14",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03498313"
    },
    {
      "nct_id": "NCT03112226",
      "title": "Effects of Ovarian Hormone Suppression on Vascular and Cognitive Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Impairment",
        "Estrogen Deficiency",
        "Menopause",
        "Endothelial Dysfunction",
        "Vascular Stiffness"
      ],
      "interventions": [
        {
          "name": "GnRHant + E2",
          "type": "OTHER"
        },
        {
          "name": "GnRHant + Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 19,
      "start_date": "2018-02-07",
      "completion_date": "2020-06-21",
      "has_results": false,
      "last_update_posted_date": "2021-06-07",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Boulder, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03112226"
    },
    {
      "nct_id": "NCT00140998",
      "title": "Estrogen Treatment (Oral vs. Patches) in Turner Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Turner Syndrome",
        "Hypogonadism",
        "Premature Ovarian Failure"
      ],
      "interventions": [
        {
          "name": "17 beta estradiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nemours Children's Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "16 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 16 Years · Female only"
      },
      "enrollment_count": 16,
      "start_date": "2001-01",
      "completion_date": "2004-06",
      "has_results": false,
      "last_update_posted_date": "2017-11-30",
      "last_synced_at": "2026-09-03T19:18:58.483Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00140998"
    }
  ]
}