🏛️ Verified NIH Record • Updated 2026-05-18
Mechanisms of Diuretic Resistance in Heart Failure, Aim 1 (NCT05323487)
🟢 Recruiting Phase1 💊 Investigational Drug / Biologic Sponsor: Yale University
🩺 Plain-English Summary (8th-Grade Level)
This study will employ a randomized order, double-blind, repeated measures dose ranging design. This design was chosen in order to generate multiple within-subject serial loop diuretic dose response exposures. The overall study schema will include 75 heart failure (HF) patients.
Who can join: To join this study, participants generally need to meet the listed inclusion criteria (5 items) and avoid the listed exclusions (8 items).
Location: Yale University — New Haven, Connecticut
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistCheck every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).
Usually NOT eligible if any of the following apply:
- Exclusion Criteria:
- GFR \<20 ml/min/1.73m2 using the Chronic Kidney Disease- Epidemiology (CKD-EPI)equation or use of renal replacement therapies
- Use of any non-loop type diuretic in the last 14 days with the exclusion of low dose aldosterone antagonist (e.g., spironolactone or eplerenone ≤50 mg). Examples of non-loop diuretics include but may not be limited to acetazolamide (oral or IV, not ophthalmic), metolazone, Hydrochlorothiazide (HCTZ), chlorthalidone, chlorothiazide, indapamide, triamterene, amiloride, finerenone, spironolactone dose \> 50mg day, eplerenone \> 50mg/day,
- History of flash pulmonary edema requiring hospitalization and treatment with biphasic positive airway pressure or mechanical ventilation or a "brittle" volume sensitive HF phenotype such as an infiltrative or restrictive cardiomyopathy (i.e. amyloid cardiomyopathy, etc).
- Hemoglobin \< 8 g/dL
- Pregnant or breastfeeding
- Inability to give written informed consent or comply with study protocol or follow-up visits
- Chronic Urinary retention limiting ability to perform timed urine collection procedures
🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.
📍 All Participating Trial Locations (1 Sites)
- Yale University — New Haven, Connecticut
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.