Last updated on June 2019

Spironolactone Initiation Registry Randomized Interventional Trial in Heart Failure With Preserved Ejection Fraction


Brief description of study

Heart failure with preserved ejection fraction (HFPEF) is common and deadly but without therapy. Inconclusive studies such as TOPCAT (Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist) suggest spironolactone may be effective in HFPEF, but it is generic and will not be studied by industry.

SPIRRIT is a unique Registry-Randomized Clinical Trial (RRCT) that will test the hypothesis that spironolactone plus standard of care compared to standard of care alone reduces the composite of CV mortality and HF hospitalization as follows:

Population: HFPEF patients in the Swedish Heart Failure Registry (2550 patients) and HFPEF patients in US (650 patients). HFPEF defined as symptoms/signs of HF, elevated NTproBNP (B-type Natriuretic Peptide; N-terminal pro b-type Natriuretic Peptide) and EF>=40%. Intervention and control: Randomized 1:1 to intervention: spironolactone + usual care vs. control: usual care alone.

Outcome: Primary outcome cardiovascular death or time to HF hospitalization. Secondary outcomes include hospitalization for various causes, adverse events and treatment adherence. In Sweden outcomes are obtained automatically by linking with the Population, Patient and Drug Dispensed Registries. In the US, outcomes will be reported by sites and supplemented by data from a call center. The trial is event-driven with enrollment 3 years and study duration 5 years. For the primary outcome (CV Death or first HF hospitalization) with an event target of 632 events the sample size requires 3012 patients conservatively rounded to approximately 3200 patients. A detailed feasibility assessment shows that there will be > 8197 eligible patients to meet the required enrollment of 3200 patients.

Clinical Study Identifier: NCT02901184

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Härnösand, Sweden
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Skellefteå, Sweden
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Södertälje, Sweden
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backakliniken

Härnösand, Sweden
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Skellefteå, Sweden
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Södertälje, Sweden
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