{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Spironolactone+50+mg",
    "query": {
      "intervention": "Spironolactone 50 mg"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 32,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Spironolactone+50+mg&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T16:58:11.101Z",
  "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": "NCT04205136",
      "title": "Spironolactone to Improve Apnea and Cardiovascular Markers in Obstructive Sleep Apnea Patients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-03",
      "completion_date": "2023-04",
      "has_results": false,
      "last_update_posted_date": "2022-04-19",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04205136"
    },
    {
      "nct_id": "NCT02883400",
      "title": "Spironolactone After Liver Transplant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Transplant, Liver"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 30,
      "start_date": "2014-12",
      "completion_date": "2018-01",
      "has_results": true,
      "last_update_posted_date": "2022-04-21",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02883400"
    },
    {
      "nct_id": "NCT02253394",
      "title": "The Combination Ambrisentan Plus Spironolactone in Pulmonary Arterial Hypertension Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Ambrisentan plus Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Ambrisentan plus Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2015-09",
      "completion_date": "2018-02",
      "has_results": true,
      "last_update_posted_date": "2019-11-15",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02253394"
    },
    {
      "nct_id": "NCT04723862",
      "title": "Does Spironolactone Normalize Sleep-wake Luteinizing Hormone Pulse Frequency in Pubertal Girls With Hyperandrogenism?",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Hyperandrogenism",
        "Polycystic Ovary Syndrome",
        "Puberty"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "17 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 17 Years · Female only"
      },
      "enrollment_count": 32,
      "start_date": "2021-11-12",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-08-05",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04723862"
    },
    {
      "nct_id": "NCT02167464",
      "title": "Controlling Blood Pressure in Treatment Resistant Hypertension: A Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Renin treatment-guided Therapeutics",
          "type": "DRUG"
        },
        {
          "name": "Referral Hypertension specialist",
          "type": "OTHER"
        },
        {
          "name": "Aldosterone Antagonist",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Medical University of South Carolina",
      "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": 70,
      "start_date": "2011-06",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2018-07-23",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 8,
      "location_summary": "Anderson, South Carolina • Beaufort, South Carolina • Florence, South Carolina + 4 more",
      "locations": [
        {
          "city": "Anderson",
          "state": "South Carolina"
        },
        {
          "city": "Beaufort",
          "state": "South Carolina"
        },
        {
          "city": "Florence",
          "state": "South Carolina"
        },
        {
          "city": "Holly Hill",
          "state": "South Carolina"
        },
        {
          "city": "Prosperity",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02167464"
    },
    {
      "nct_id": "NCT06495710",
      "title": "Arterial Stiffness and Blood Pressure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension",
        "Vascular Stiffness",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Blood pressure treatment algorithm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 228,
      "start_date": "2025-05-01",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 3,
      "location_summary": "Birmingham, Alabama • Nashville, Tennessee • Madison, Wisconsin",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06495710"
    },
    {
      "nct_id": "NCT00811486",
      "title": "Body Volume Regulation in Pulmonary Arterial Hypertension With Right Ventricular Failure",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Right Heart Failure",
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Spironolactone and conivaptan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "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": 0,
      "start_date": "2009-01",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2013-01-28",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00811486"
    },
    {
      "nct_id": "NCT02901184",
      "title": "Spironolactone Initiation Registry Randomized Interventional Trial in Heart Failure With Preserved Ejection Fraction",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Standard care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Uppsala University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "50 Years to 99 Years"
      },
      "enrollment_count": 2000,
      "start_date": "2017-11-23",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2024-10-22",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 38,
      "location_summary": "Alexander City, Alabama • Birmingham, Alabama • Tucson, Arizona + 34 more",
      "locations": [
        {
          "city": "Alexander City",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02901184"
    },
    {
      "nct_id": "NCT03429946",
      "title": "Hypoglycemia and Autonomic Nervous System Function-B",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypoglycemia",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Hypoglycemic Hyperinsulinemic Clamp",
          "type": "OTHER"
        },
        {
          "name": "Euglycemic Hyperinsulinemic Clamp",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 28,
      "start_date": "2013-07-17",
      "completion_date": "2025-11-25",
      "has_results": false,
      "last_update_posted_date": "2026-01-02",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03429946"
    },
    {
      "nct_id": "NCT01406015",
      "title": "Mineralocorticoid Receptor and Obesity Induced Cardiovascular Complications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 38,
      "start_date": "2009-02",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2017-04-28",
      "last_synced_at": "2026-09-25T16:58:11.101Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01406015"
    }
  ]
}