Finerenone Indication in Adults with Type 2 Diabetes
Finerenone is indicated for adults with type 2 diabetes and chronic kidney disease who have persistent albuminuria (≥30 mg/g) despite maximum tolerated renin-angiotensin system inhibitor therapy, with eGFR ≥25 mL/min/1.73 m² and serum potassium ≤4.8 mmol/L. 1, 2
Patient Selection Criteria
The following criteria must ALL be met before initiating finerenone:
- Type 2 diabetes with chronic kidney disease 1, 2
- eGFR ≥25 mL/min/1.73 m² (do not use if eGFR <25 or on dialysis) 1, 2
- Albuminuria ≥30 mg/g (≥3 mg/mmol) that persists despite standard therapy 1, 2
- Already on maximum tolerated dose of ACE inhibitor or ARB 1, 2
- Serum potassium ≤4.8 mmol/L at baseline 1, 2
Treatment Sequencing Algorithm
Follow this hierarchical approach for cardiorenal protection:
- First-line foundation: Maximize RAS inhibitor (ACE inhibitor or ARB) 2, 3
- Second-line priority: Add SGLT2 inhibitor (larger effects on kidney and cardiovascular outcomes than finerenone) 2, 3
- Third-line consideration: Add finerenone if:
- Combination therapy: Finerenone may be added to both RAS inhibitor AND SGLT2 inhibitor for complementary cardiorenal protection 1, 2
Dosing Protocol
Initial dose based on eGFR: 1, 2
- eGFR 25-60 mL/min/1.73 m²: Start 10 mg once daily
- eGFR >60 mL/min/1.73 m²: Start 20 mg once daily
- After 4 weeks, increase from 10 mg to 20 mg daily if serum potassium remains ≤4.8 mmol/L
Potassium Monitoring and Management
- Check potassium at baseline (must be ≤4.8 mmol/L to initiate)
- Recheck at 1 month after initiation
- Then monitor every 4 months during maintenance
Management based on potassium levels: 1
| Potassium Level | Action |
|---|---|
| ≤4.8 mmol/L | Continue current dose or uptitrate to 20 mg if on 10 mg [1] |
| 4.9-5.5 mmol/L | Continue current dose, monitor every 4 months [1] |
| >5.5 mmol/L | Hold finerenone, adjust diet/medications, recheck potassium, restart at 10 mg when ≤5.0 mmol/L [1,2] |
Clinical Benefits Supporting This Indication
Finerenone provides dual cardiorenal protection in this population:
- Kidney protection: 23% reduction in composite kidney outcomes (kidney failure, sustained ≥57% decrease in eGFR, or renal death) 2
- Cardiovascular protection: 13% reduction in cardiovascular endpoints (CV death, nonfatal MI, nonfatal stroke, or heart failure hospitalization) 2
- Heart failure hospitalization: 29% reduction specifically 4
Target Population Characteristics
Finerenone is most appropriate for patients at high risk of CKD progression and cardiovascular events, specifically those with: 1, 2
- Persistent albuminuria despite optimized standard-of-care therapies
- Progressive kidney function decline
- History of or risk for cardiovascular events
Critical Safety Considerations
- Occurs in 10.8-14% with finerenone vs. 5.3-6.9% with placebo
- Severe hyperkalemia requiring discontinuation: only 1.2-1.7% of patients
- Lower risk than steroidal MRAs (spironolactone/eplerenone)
Common pitfall to avoid: Do not initiate finerenone in patients who have not first been optimized on maximum tolerated RAS inhibitor therapy. 2, 3
Absolute contraindications: 2, 3
- eGFR <25 mL/min/1.73 m²
- End-stage renal disease or dialysis
- Baseline potassium >4.8 mmol/L