Life sciences · Phase 4 Trial
ClinicalTrials.gov · September 28, 2026
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Phase 4 Trial.
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Registry record from ClinicalTrials.gov (NCT06995144). This is a study registration, not published results. Lead sponsor: Sarfez Pharmaceuticals, Inc.. Recruitment status: WITHDRAWN. Phase: PHASE4. Study type: INTERVENTIONAL. Conditions: Heart Failure, Edema, Pulmonary Congestion, Fluid Overload. Interventions: DRUG: Extended Release Torsemide Tablets; DRUG: Immedate Release Torsemide Tablets. Primary outcome measures: Urinary sodium excretion measurement , 4-8 hours (post-lunch period). Brief summary: The primary objective of this study is to learn whether a morning dose of extended-release torsemide enhances renal sodium excretion after lunch (4-8 hours after dosing) compared to immediate-release torsemide. This is a randomized, double-blind, crossover study in patients with heart failure who are on a stable dose of a loop diuretic. The primary endpoint will be urinary sodium excretion (4-8 hours after dosing). This will be compared between the extended-release arm and the immediate-release arm to assess the efficacy of prolonged diuretic action. In addition, urinary potassium and creatinine excretion and creatinine clearance will be measured in all urine samples as the safety endpoints.