{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Metolazone",
    "query": {
      "intervention": "Metolazone"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 18,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Metolazone&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T09:24:39.531Z",
  "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": "NCT04467931",
      "title": "ACEI or ARB and COVID-19 Severity and Mortality in US Veterans",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertension",
        "COVID"
      ],
      "interventions": [
        {
          "name": "ACEI/ARB",
          "type": "DRUG"
        },
        {
          "name": "Non-ACEI/ARB",
          "type": "DRUG"
        },
        {
          "name": "ACEI",
          "type": "DRUG"
        },
        {
          "name": "ARB",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22213,
      "start_date": "2020-01-19",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-04-28",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04467931"
    },
    {
      "nct_id": "NCT00690521",
      "title": "A Comparison of Hydrochlorothiazide and Metolazone in Combination With Furosemide in Congestive Heart Failure Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "Treatment of Furosemide + Hydrochlorothiazide",
          "type": "DRUG"
        },
        {
          "name": "Treatment of Furosemide + Metolazone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "98 Years",
        "sex": "ALL",
        "summary": "18 Years to 98 Years"
      },
      "enrollment_count": 8,
      "start_date": "2004-10-26",
      "completion_date": "2009-11-10",
      "has_results": true,
      "last_update_posted_date": "2024-10-10",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00690521"
    },
    {
      "nct_id": "NCT01921829",
      "title": "Protocolized Diuretic Strategy in Cardiorenal Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cardiac Failure",
        "Renal Failure",
        "Kidney Failure"
      ],
      "interventions": [
        {
          "name": "Protocolized Diuretic Strategy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kelly V. Liang, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "21 Years and older · Male only"
      },
      "enrollment_count": 19,
      "start_date": "2013-11",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2017-08-21",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01921829"
    },
    {
      "nct_id": "NCT05633758",
      "title": "Metolazone As Early Add On Therapy For Acute Decompensated Heart Failure",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Decompensated Heart Failure"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Metolazone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Scripps Health",
      "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": "2014-03",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2022-12-01",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05633758"
    },
    {
      "nct_id": "NCT00904488",
      "title": "Oral Metolazone and Intermittent Intravenous Furosemide Versus Continuous Infusion Furosemide in Acute Heart Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acute Decompensated Heart Failure"
      ],
      "interventions": [
        {
          "name": "Addition of oral Metolazone",
          "type": "DRUG"
        },
        {
          "name": "Furosemide dose escalation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2008-10",
      "completion_date": "2017-11-14",
      "has_results": true,
      "last_update_posted_date": "2018-03-13",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00904488"
    },
    {
      "nct_id": "NCT02183792",
      "title": "Aquaresis Utility for Hyponatremic Acute Heart Failure Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Tolvaptan",
          "type": "DRUG"
        },
        {
          "name": "Furosemide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2014-12",
      "completion_date": "2018-03",
      "has_results": true,
      "last_update_posted_date": "2019-05-28",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02183792"
    },
    {
      "nct_id": "NCT03746002",
      "title": "Diuretic Effect of Metolazone Pre-dosing Versus Concurrent Dosing",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Fluid Overload",
        "Heart Failure Acute"
      ],
      "interventions": [
        {
          "name": "Metolazone 60 minutes prior to furosemide",
          "type": "DRUG"
        },
        {
          "name": "Metolazone concurrently with furosemide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 3,
      "start_date": "2019-01-01",
      "completion_date": "2020-01-10",
      "has_results": true,
      "last_update_posted_date": "2021-10-22",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03746002"
    },
    {
      "nct_id": "NCT02606253",
      "title": "Comparison of Oral or Intravenous Thiazides vs Tolvaptan in Diuretic Resistant Decompensated Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "tolvaptan",
          "type": "DRUG"
        },
        {
          "name": "Chlorothiazide",
          "type": "DRUG"
        },
        {
          "name": "Metolazone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2016-02",
      "completion_date": "2018-10-31",
      "has_results": true,
      "last_update_posted_date": "2019-11-08",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02606253"
    },
    {
      "nct_id": "NCT04542304",
      "title": "Efficacy of Diuretics in Kidney Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Kidney Disease",
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "Metolazone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2021-03-01",
      "completion_date": "2023-06-15",
      "has_results": true,
      "last_update_posted_date": "2025-06-05",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 2,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04542304"
    },
    {
      "nct_id": "NCT02646540",
      "title": "AiDing Diuresis wIth Tolvaptan (ADD-IT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cardiomyopathy",
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "Tolvaptan 30 mg + IV Diuretics",
          "type": "DRUG"
        },
        {
          "name": "Metolazone 5 mg + IV Diuretics",
          "type": "DRUG"
        },
        {
          "name": "2.5 times the Diuretics Dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2016-01",
      "completion_date": "2018-12-30",
      "has_results": false,
      "last_update_posted_date": "2019-03-27",
      "last_synced_at": "2026-09-07T09:24:39.531Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02646540"
    }
  ]
}