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Spironolactone In The Treatment of Heart Failure

Recruiting
50 - 100 years of age
Both
Phase 3

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Overview

The purpose of this study is to determine whether the treatment of patients with HFmrEF and HFpEF at high risk of cardiovascular events with the mineralocorticoid receptor antagonist (MRA) spironolactone reduces a composite of recurrent heart failure hospitalizations and cardiovascular mortality.

Description

The primary objective of the SPIRIT-HF study is to compare Spironolactone to Placebo in reducing the rate of the composite endpoint of recurrent heart failure hospitalizations and cardiovascular (CV) death in symptomatic HF patients (NYHA II-IV) with mid-range (LVEF 40- 49 %) or preserved (LVEF ≥ 50 %) ejection fraction.

The efficacy and safety of mineralocorticoid receptor antagonist (MRA) in reducing the risk of death and hospitalizations has been proven with two separate substances (Spironolactone; RALES 1999 and Eplerenone; EMPHASIS 2011) in symptomatic heart failure patients with reduced left- ventricular ejection fraction (HFrEF). In 2013 the TOPCAT investigators tried to proof similar efficacy in patients with heart failure and preserved ejection fraction (≥ 45%). Because of regional variations in the enrollment process and difficulties regarding drug adherence the trial revealed neutral findings but the substance spironolactone was still able to show its potential benefit in the American cohort. Hence, the investigators see a strong rationale for testing a mineralocorticoid receptor blocker in patients suffering from heart failure with mid-range or preserved left ventricular ejection fraction.

Intervention

Mineralocorticoid receptor blocker Spironolactone in tablet form taken daily. Starting dosage will be 25 mg OD with dosage escalation to 50 mg OD within 4 weeks if kidney function at VR was > 30 mL/min/m2 and potassium < 4.5 mmol/L. Spironolactone is not approved for the treatment of HFmrEF and HFpEF.

Matching placebo in tablet form taken daily with dosage escalation rules in accordance with dosage of the study drug Spironolactone.

Visits

Screening (VScr), Visit of Randomization (VR), V1 Safety Visit (1 week), V2 (4 weeks), V2S Safety Visit (5 week), V3 (4 months), V4 (8 months), V5 (12 months), V6 (18 months), V7 (24 months), V8 (30 months), V9 (36 months), V10 (42 months), V11/EOT (48 months); VXS (1 week after Visit X).

Individual intervention duration with spironolactone or placebo will be continued until the overall expected event rate is reached or until withdrawal of informed consent. Based on previous HF trials the investigators calculate a mean follow-up duration of 3 years (range 2-4 years) depending on the individual inclusion date.

Duration of follow-up will be event-rate based, with an expected overall study duration of 60 months. With an anticipated recruitment phase of 24 months; this will result in a maximum follow-up of 48 months and an average follow-up per patient of 36 months assuming a constant recruitment rate.

Eligibility

Inclusion Criteria:

        Patients eligible for inclusion in this study have to fulfill all of the following
        criteria:
          1. Written informed consent.
          2. Male or female, age ≥ 50 years
          3. Current symptoms of Heart Failure (NYHA ≥ II) during VR
          4. Symptom(s) of HF ≥ 30 days prior to VR
          5. HF Hospitalization or treatment with intravenous (IV) diuretics for worsening HF
             within 12 months prior to VR
          6. Left ventricular ejection fraction ≥ 40 % at screening measured by echocardiography
             and evidence of structural/ functional abnormalities (at least one of the following
             criteria): LAVI > 34 ml/m2// E/émean ≥ 13// Mean e' (septal and lateral) < 9 cm/s
          7. NT-proBNP > 300 pg/ml (SR) or > 900 pg/ml (AF) on the Visit 1 ECG; only if NT-proBNP
             is NOT available: BNP > 80/ 250 pg/ml (SR/AF)
          8. Controlled systolic BP: defined as a target systolic BP < 140 mm Hg. Subjects with BP
             up to and including 160 mm Hg are eligible for enrollment if on 3 or more medications
             to control BP (Patients with uncontrolled BP should be considered for Re-Screening
             after optimization of antihypertensive therapy has been established)
          9. Serum potassium < 5.0 mmol/L prior to randomization
        Exclusion Criteria:
        Patients fulfilling any of the following criteria are not eligible for inclusion in this
        study. The investigator may apply no additional exclusion criteria, in order to ensure that
        the study population will be representative of all eligible patients.
          1. Hyperkalemia (potassium level ≥ 5.5 mmol/L) within the past two weeks before VR
          2. Hyponatraemia (sodium level < 135 mmol/L) prior to randomization
          3. Severe renal dysfunction, defined as an estimated glomerular filtration rate of less
             than 30 mL/min/1.73m2) as calculated by the Modification in Diet in Renal Disease
             (MDRD) formula at Visit 1 or serum creatinine level ≥ 1,8 mg/dl (> 160 μmol/ml)
          4. History of anuria or acute renal failure (as defined by the RIFLE criteria for AKI;
             see Appendix XVIII.3) within the past two weeks before VRenal dysfunction, defined as
             an estimated glomerular filtration rate of less than 30 mL/min/1.73m2) as calculated
             by the Modification in Diet in Renal Disease (MDRD) formula at VScr/VR or serum
             creatinine level ≥ 1,8 mg/dl (> 160 μmol/ml)History of anuria or acute renal failure
             (as defined by the RIFLE criteria for AKI; see Appendix XVIII.3) within the past two
             weeks prior to randomization
          5. Acute coronary syndrome (including MI) and elective PCI within 30 days prior to VR.
          6. Cardiac surgery, other major CV surgery, or urgent percutaneous coronary intervention
             (PCI) within the 3 months prior to VR
          7. Current acute decompensated HF requiring augmented therapy with i.v. diuretics, i.v.
             vasodilators and/or i.v. inotropic drugs. Patients are eligible after initial
             stabilization.
          8. Probable alternative diagnoses that in the opinion of the investigator could account
             for the patient's HF symptoms (i.e., dyspnea, fatigue) such as significant pulmonary
             disease (including primary pulmonary HTN), anemia or obesity. Specifically, patients
             with the following are not eligible for randomization:
               -  Severe pulmonary disease including chronic obstructive pulmonary disease (COPD)
                  or severe asthma bronchiale ( (ie requiring home oxygen, chronic nebulizer
                  therapy, chronic oral steroid therapy) or
               -  anemia (hemoglobin < 10 g/dL males and < 9.5 g/dL females), or
               -  body mass index (BMI) > 40 kg/m2
          9. Evidence of right sided HF in the absence of left-sided structural heart disease.
         10. Specific etiologies such as infiltrative, genetic hypertrophic cardiomyopathy,
             pericardial constriction, sarcoidosis, amyloidosis and any other storage diseases.
         11. Clinically significant congenital heart disease underlying heart failure.
         12. Life-threatening or uncontrolled dysrhythmia, including symptomatic or sustained
             ventricular tachycardia and uncontrolled persistent or permanent atrial fibrillation
             (AF) or flutter (with a heart rate > 100 beats per minute (bpm), RACE II) during VR.
             If AF with HR > 100/min, the patient may be rescreened after treatment for rate
             control.
         13. Presence of significant (i.e., more than moderate) valvular heart disease expected to
             lead to surgery during the trial in the investigators opinion.
         14. Stroke, transient ischemic attack, carotid surgery or carotid angioplasty within the 3
             months prior to VR.
         15. Coronary or carotid artery disease or valvular heart disease likely to require
             surgical or percutaneous intervention within the 6 months after VR in the
             investigators opinion.
         16. Patients with prior major organ transplant or intent to transplant (on transplant
             list) or with current ventricular assist device (VAD) therapy.
         17. Evidence of hepatic disease as determined by any one of the following: SGOT (AST) or
             SGPT (ALT) values exceeding 3x the upper limit of normal (ULN), bilirubin >1.5 mg/dl
             at VR.
         18. Evidence of present bilateral renal artery stenosis
         19. Known intolerance or history of hypersensitivity to the active substance
             (Spironolactone) or to any of the excipients of the Investigational Medicinal Product
             (IMP) or placebo.
         20. Present use of any aldosterone antagonist, potassium supplements or potassium sparing
             diuretics at the time of enrollment. (Consider stopping these potassium sparing drugs
             if clinically possible and upon discussion with the patient)
         21. Required treatment with prohibited Co-medications according to the summary of product
             characteristics with the exception of ACE inhibitors or angiotensin receptor blockers
             (as described in the protocol in IV.2).
             , careful monitoring of plasma lithium and dose adjustment are required.
         22. Use of other investigational drugs at the time of enrollment, or within 30 days or 5
             half-lives before enrollment, whichever is longer.
         23. Any condition that, in the opinion of the investigator may prevent the subject from
             adhering to the study protocol (e.g. history of non-compliance to medical regimens,
             patients who are considered potentially unreliable, patients with a history of
             addiction).
         24. History or presence of any other disease (i.e. including malignancies) with a life
             expectancy of < 1 years.
         25. History of non-compliance to medical regimens and patients who are considered
             potentially unreliable.
         26. Subjects who are legally detained in an official institution.
         27. Subjects who may be dependent on the sponsor, the investigator or the trial sites,
             have to be excluded from the trial.
         28. Pregnant or nursing (lactating) women, where pregnancy is defined as the state of a
             female after conception and until the termination of gestation, confirmed by a
             positive human chorionic gonadotropin (hCG) laboratory test.
         29. Women of child-bearing potential, defined as all women physiologically capable of
             becoming pregnant, unless they are using highly effective methods of contraception
             during study participation and until 2 months after the last dose off study drug.

Study details

Heart Failure With Mid-range Ejection Fraction, Heart Failure With Preserved Ejection Fraction

NCT04727073

Charite University, Berlin, Germany

27 January 2024

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