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Clinical Trials/NCT07576257
NCT07576257Not yet recruitingPhase 2

OPtimizing Aldosterone Receptor Antagonist Therapy by Sodium Zirconium Cyclosili-cate in Heart Failure -Extension (OPRA-HF Extension)

Sahlgrenska University Hospital0 sites110 target enrollmentStarted: September 1, 2026Last updated:
Conditions

Trial Snapshot

Phase
Phase 2
Status
Not yet recruiting
Sponsor
Enrollment
110

Study Overview

Brief Summary

A multicenter, randomized, controlled study in Sweden (n=110). This study consists of 2 phases: 1) open-label run-in within approximately 2 months, and 2) randomized, double-blinded and placebo-controlled treatment for 6 months.

The open-label phase, in turn, consists of three periods: up-titration (normally 1 - 2 weeks, and longer in some cases), correction (maximum 72 hours) and maintenance (4 - 7 weeks).

Detailed Description

A multicenter, randomized, controlled study in Sweden (n=110). This study consists of 2 phases: 1) open-label run-in within approximately 2 months, and 2) randomized, double-blinded and placebo-controlled treatment for 6 months.

The open-label phase, in turn, consists of three periods: up-titration (normally 1 - 2 weeks, and longer in some cases), correction (maximum 72 hours) and maintenance (4 - 7 weeks).

Eligible study population:

  1. >70 yrs.
  2. Regardless of LVEF but EF measured within past 2 years. For HFpEF echo criteria defined by ≥2 of: LV wall thickness ≥ 12 mm; LV mass index (BSA indexed LVH): male >115 g/m2, female >95 g/m2; relative wall thickness ≥0.42; E/e' ≥15 in sinus rhythm (or > 11 in the setting of atrial fibrillation); tricuspid regurgitation velocity >2.8 m/s; Left atrial volume index >34 ml/m2.
  3. GFR ≥ 20 mL/min/1,73 m².
  4. NYHA II-IV.
  5. On optimal treatment as per physician´s judgement including ACE/ARB/ARNI, beta blockers, SGLT2 inhibitor för HFrEF/HFmrEF, and SGLT2 inhibitors in HFpEF
  6. Suboptimal treatment with MRA (defined as: no use or ≤ 25 mg daily
  7. And one of following:

1) Prior hyperkalemia (S-K> 5.0 mmol/L or P-K> 4.8 mmol/L*) during MRA treatment within last 24 months, and current S-K ≤ 5.0 or P-K ≤ 4.8 mmol/L 2) Current S-K 4.5-5.0 mmol/L or P-K 4.3-4.8 mmol/L, and potential risk of hyperkalemia as indicated by eGFR 30-45 ml/min/1,73 m2 3) Current S-K 5.1-5.9 mmol/L or P-K 4.9-5.7 mmol/L

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
70 Years to — (Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • 1. >70 yrs.
  • Regardless of LVEF but EF measured within past 2 years. For HFpEF echo criteria defined by ≥2 of: LV wall thickness ≥ 12 mm; LV mass index (BSA indexed LVH): male >115 g/m2, female >95 g/m2; relative wall thickness ≥0.42; E/e' ≥15 in sinus rhythm (or > 11 in the setting of atrial fibrillation); tricuspid regurgitation velocity >2.8 m/s; Left atrial volume index >34 ml/m
  • 3. GFR ≥ 20 mL/min/1,73 m².
  • NYHA II-IV.
  • On optimal treatment as per physician´s judgement including ACE/ARB/ARNI, beta blockers, SGLT2 inhibitor för HFrEF/HFmrEF, and SGLT2 inhibitors in HFpEF
  • Suboptimal treatment with MRA (defined as: no use or ≤ 25 mg daily
  • And one of following:
  • Prior hyperkalemia (S-K> 5.0 mmol/L or P-K> 4.8 mmol/L*) during MRA treatment within last 24 months, and current S-K ≤ 5.0 or P-K ≤ 4.8 mmol/L
  • Current S-K 4.5-5.0 mmol/L or P-K 4.3-4.8 mmol/L, and potential risk of hyperkalemia as indicated by eGFR 30-45 ml/min/1,73 m2
  • Current S-K 5.1-5.9 mmol/L or P-K 4.9-5.7 mmol/L
  • Corresponding plasma K (P-K) level is 0.2 mmol lower than serum K(S-K). Hyperkalemia is defined as P-K > 4,8 mmol/L or S-K >5,0 mmol/L.

Exclusion Criteria

  • Not provided

Investigators

Sponsor
Sahlgrenska University Hospital
Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Michael Fu

Professor

Sahlgrenska University Hospital

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