Nephrology
CKD Albuminuria Treatment
Confirm persistent albuminuria with quantitative UACR, stage risk jointly with eGFR, maximize single-agent renin-angiotensin blockade, and layer SGLT2 inhibition and finerenone selectively in type 2 diabetes while monitoring potassium and kidney function.
First decision
Confirm persistent albuminuria before escalating CKD therapy
A single elevated measurement should trigger confirmation and risk staging, not automatic attribution to diabetic kidney disease.
Order a quantitative spot UACR rather than relying on dipstick protein to establish and follow albuminuria. A first-void morning sample is preferred when feasible because it improves initial assessment; repeat an abnormal UACR, preferably using another first-morning specimen, before using albuminuria to direct long-term treatment. acpjournals+1acpjournalsChronic Kidney Disease | Annals of Internal Medicine - ACP JournalsWolters KluwerAlbuminuria in Heart Failure : Cardiology in Review
Assign A1 for UACR <30 mg/g, A2 for 30-299 mg/g, and A3 for ≥300 mg/g. Pair the albuminuria category with eGFR category and CKD cause because albuminuria independently changes kidney and cardiovascular risk even when eGFR is preserved. Wolters Kluwer+2Wolters KluwerRisk of Hospital Readmission among People with CKD : Clinical Journal of the American Society of NephrologyWolters KluwerAlbuminuria in Heart Failure : Cardiology in ReviewKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...
Screen at least annually with UACR in patients with diabetes, hypertension, cardiovascular disease, or established CKD. An elevated UACR in a patient without an established CKD cause should prompt assessment for an alternative renal diagnosis rather than empiric labeling as diabetic kidney disease. BMJBMJAssessment and management of albuminuria in adults | The BMJ
Use UACR for quantitative longitudinal follow-up; UACR identifies A2 and A3 albuminuria that changes risk assessment and treatment selection. acpjournalsacpjournalsPopulation-Wide Screening for Chronic Kidney Disease: A Cost ...
Interpret a dipstick result cautiously: dipstick protein may detect marked proteinuria, but UACR is the preferred quantitative test for albuminuria classification. acpjournals+2acpjournalsChronic Kidney Disease | Annals of Internal Medicine - ACP JournalsWolters KluwerAlbuminuria in Heart Failure : Cardiology in ReviewWolters KluwerEarly-Stage Chronic Kidney Disease and Related... : JAMA Network Open
Etiology and referral
Identify albuminuria patterns that require nephrology evaluation
Treatment layering is appropriate only after considering whether albuminuria reflects a potentially treatable glomerular process.
Refer to nephrology when albuminuria is accompanied by concern for glomerulonephritis, an unknown etiology, severe albuminuria with hematuria, or a calculated 5-year kidney-failure risk above 3%-5%. Referral is also reasonable at UACR >30 mg/mmol, or at UACR >3 mg/mmol when additional risk factors are present. BMJBMJAssessment and management of albuminuria in adults | The BMJ
Do not assume diabetes explains every case of proteinuric CKD. Primary glomerular disorders, including focal segmental glomerulosclerosis, minimal change disease, IgA nephropathy, and membranous nephropathy, can coexist with diabetes; diabetic nephropathy may be accompanied by another kidney disorder in 5%-15% of cases in some series. asn-onlineasn-online[PDF] Chronic Kidney Disease (CKD) - American Society of Nephrology
When the clinical pattern suggests glomerulonephritis or the cause remains unclear, nephrology assessment should determine the need for disease-specific serology, imaging, and kidney biopsy rather than escalating antiproteinuric therapy alone. BMJ+1BMJAssessment and management of albuminuria in adults | The BMJasn-online[PDF] Chronic Kidney Disease (CKD) - American Society of Nephrology
Escalate urgently for severe albuminuria with hematuria because this combination raises concern for glomerular disease. BMJBMJAssessment and management of albuminuria in adults | The BMJ
Use the 5-year kidney-failure risk estimate as a referral discriminator; a result >3%-5% supports nephrology involvement even when the immediate treatment plan appears straightforward. BMJBMJAssessment and management of albuminuria in adults | The BMJ
Foundation therapy
Use ACE inhibitor or ARB therapy at a maximally tolerated dose
Single-agent renin-angiotensin system inhibition is the foundational antiproteinuric strategy for eligible albuminuric CKD.
For CKD without diabetes, KDIGO recommends starting an ACE inhibitor or ARB for G1-G4 CKD with A3 albuminuria and suggests either agent for G1-G4 CKD with A2 albuminuria. For CKD with diabetes, start an ACE inhibitor or ARB for G1-G4 CKD with either A2 or A3 albuminuria. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...
Administer the selected ACE inhibitor or ARB at the highest approved dose the patient tolerates; the evidence base supporting kidney protection used these doses. In patients with diabetes, hypertension, and albuminuria, ACE inhibitor or ARB therapy is first-line antihypertensive therapy, while a dihydropyridine calcium channel blocker or diuretic may be needed alongside it to achieve blood-pressure goals. Kidney International+2Kidney InternationalExecutive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidenceKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...PubMedProtecting the Kidneys: Update on Therapies to Treat Diabetic Nephropathy
Do not combine an ACE inhibitor with an ARB or a direct renin inhibitor in CKD. Combination therapy increases treatment complexity without guideline support and should not be used to pursue a larger albuminuria reduction. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...
Monitor blood pressure, serum creatinine, and serum potassium during ACE inhibitor or ARB treatment; cough, angioedema, hypotension, hyperkalemia, and increased creatinine are clinically relevant adverse effects. PubMedPubMedProtecting the Kidneys: Update on Therapies to Treat Diabetic Nephropathy
If an adverse effect occurs, reduce the dose or discontinue the ACE inhibitor or ARB as needed to resolve the event safely rather than adding a second renin-angiotensin system agent. PubMed+1PubMedProtecting the Kidneys: Update on Therapies to Treat Diabetic NephropathyKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...
| Clinical group | Albuminuria category | Recommended action |
|---|---|---|
| CKD without diabetes, G1-G4 | A3 | Start an ACE inhibitor or ARB. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ... |
| CKD without diabetes, G1-G4 | A2 | Consider starting an ACE inhibitor or ARB. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ... |
| CKD with diabetes, G1-G4 | A2 or A3 | Start an ACE inhibitor or ARB. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ... |
| Any CKD | Any albuminuria category | Avoid ACE inhibitor plus ARB or either agent plus a direct renin inhibitor. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ... |
Layered kidney protection
Add an SGLT2 inhibitor for type 2 diabetes and CKD
SGLT2 inhibition is a kidney-protective layer, not merely an albuminuria-lowering intervention.
Use an SGLT2 inhibitor in patients with type 2 diabetes and CKD as part of comprehensive kidney and cardiovascular risk reduction. SGLT2 inhibitors reduce albuminuria, attenuate progressive loss of kidney function, and reduce kidney-failure risk in CKD with type 2 diabetes. Wolters Kluwer+1Wolters KluwerBaseline, Early Changes, and Residual Albuminuria : Clinical Journal of the American Society of NephrologyKidney InternationalKDIGO 2020 Clinical Practice Guideline for Diabetes Management ...
Assess response with serial UACR and eGFR rather than requiring complete normalization of albuminuria. Albuminuria reduction occurs early after SGLT2 inhibitor initiation and is sustained during longer treatment; persistent albuminuria after initiation represents residual risk and may support consideration of finerenone when the patient meets its selection criteria. Wolters Kluwer+1Wolters KluwerBaseline, Early Changes, and Residual Albuminuria : Clinical Journal of the American Society of NephrologyKidney InternationalExecutive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidence
Evidence supports an additive biologic rationale for combining an SGLT2 inhibitor with finerenone in appropriate patients receiving renin-angiotensin system blockade, but definitive evidence defining optimal sequencing and the incremental benefit of adding finerenone to both background therapies remains limited. Kidney International+2Kidney InternationalExecutive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidenceKidney InternationalKDIGO 2022 Clinical Practice Guideline for Diabetes Management ...PubMedClinical Review - Finerenone (Kerendia) - NCBI Bookshelf
Do not substitute improvement in UACR for ongoing eGFR surveillance; SGLT2 inhibitor trials assess clinically meaningful kidney outcomes including confirmed major eGFR decline and kidney failure. Wolters KluwerWolters KluwerBaseline, Early Changes, and Residual Albuminuria : Clinical Journal of the American Society of Nephrology
For patients unable to take an SGLT2 inhibitor, finerenone may still be added to ACE inhibitor or ARB therapy when eligibility criteria are met. Kidney InternationalKidney InternationalExecutive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidence
Residual risk
Select and monitor finerenone in type 2 diabetic CKD
Finerenone is a selective add-on option for albuminuric CKD associated with type 2 diabetes.
Consider finerenone for CKD with type 2 diabetes, persistent albuminuria, eGFR ≥25 mL/min/1.73 m², serum potassium <5.0 mmol/L, and concurrent maximally tolerated ACE inhibitor or ARB therapy. KDIGO identifies finerenone as the nonsteroidal mineralocorticoid receptor antagonist with proven kidney and cardiovascular benefit in this setting. Kidney International+2Kidney InternationalExecutive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidenceKidney InternationalKDIGO 2022 Clinical Practice Guideline for Diabetes Management ...PubMedThe appropriateness of finerenone initiation, dosing, and outcomes in diabetic kidney disease: data from real world practice - PMC
Start finerenone 20 mg orally once daily when eGFR is >60 mL/min/1.73 m² and 10 mg orally once daily when eGFR is 25-60 mL/min/1.73 m². Measure serum potassium before initiation and at 4 weeks; potassium surveillance is essential because finerenone increases hyperkalemia risk. PubMedPubMedProtecting the Kidneys: Update on Therapies to Treat Diabetic Nephropathy
Finerenone reduced the FIDELIO-DKD composite kidney outcome of kidney failure, sustained ≥40% eGFR decrease, or kidney-related death versus placebo (hazard ratio 0.82, 95% CI 0.73-0.93) and reduced the key cardiovascular composite (hazard ratio 0.86, 95% CI 0.75-0.99). Hyperkalemia-related adverse events were approximately twice as frequent with finerenone as with placebo, reported as 18.3% versus 9.0% in trial data. catalogues ema europa eucatalogues ema europa eu[PDF] Observational Study/Post Authorization Safety Study (PASS ...
If hyperkalemia or clinically meaningful eGFR change emerges during therapy, reassess dose and concurrent potassium-raising therapies; in real-world practice, potassium and eGFR changes were documented reasons for finerenone down-titration. PubMedPubMedDosing, treatment patterns and safety of finerenone use in routine care: an interim analysis of the prospective, real-world and observational FINE-REAL study - PMC
Do not initiate finerenone when baseline potassium is ≥5.0 mmol/L or eGFR is <25 mL/min/1.73 m² based on the cited eligibility framework. PubMedPubMedThe appropriateness of finerenone initiation, dosing, and outcomes in diabetic kidney disease: data from real world practice - PMC
Use finerenone on top of, rather than instead of, tolerated ACE inhibitor or ARB treatment in eligible type 2 diabetic CKD. Kidney International+1Kidney InternationalKDIGO 2022 Clinical Practice Guideline for Diabetes Management ...PubMedThe appropriateness of finerenone initiation, dosing, and outcomes in diabetic kidney disease: data from real world practice - PMC
Combination therapy with SGLT2 inhibition is clinically plausible, but its precise place relative to finerenone should be individualized because definitive combination-outcome evidence remains limited. Kidney International+1Kidney InternationalKDIGO 2022 Clinical Practice Guideline for Diabetes Management ...PubMedClinical Review - Finerenone (Kerendia) - NCBI Bookshelf
Longitudinal management
Follow UACR, eGFR, and potassium to guide escalation
Albuminuria treatment requires repeated quantitative assessment because risk and medication eligibility evolve with eGFR and potassium.
Trend UACR and eGFR after initiating or intensifying antiproteinuric therapy. A durable reduction in albuminuria after SGLT2 inhibitor initiation is expected, but residual albuminuria should be interpreted as persistent cardiorenal risk rather than treatment failure by itself. Wolters Kluwer+1Wolters KluwerBaseline, Early Changes, and Residual Albuminuria : Clinical Journal of the American Society of NephrologyKidney InternationalExecutive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidence
At each reassessment, verify that ACE inhibitor or ARB therapy remains at the highest tolerated approved dose, review serum creatinine and potassium, and determine whether the patient has become eligible for or unsafe for finerenone. Kidney International+2Kidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...PubMedThe appropriateness of finerenone initiation, dosing, and outcomes in diabetic kidney disease: data from real world practice - PMCPubMedProtecting the Kidneys: Update on Therapies to Treat Diabetic Nephropathy
Escalate to nephrology when albuminuria remains unexplained, hematuria accompanies severe albuminuria, the clinical phenotype suggests glomerulonephritis, or 5-year kidney-failure risk exceeds 3%-5%. The goal is to identify disease-specific therapy or biopsy indications before irreversible loss of kidney function. BMJ+1BMJAssessment and management of albuminuria in adults | The BMJasn-online[PDF] Chronic Kidney Disease (CKD) - American Society of Nephrology
Repeat UACR to confirm abnormality before basing long-term treatment decisions on albuminuria. Wolters KluwerWolters KluwerAlbuminuria in Heart Failure : Cardiology in Review
After finerenone initiation, obtain serum potassium at 4 weeks; continue safety surveillance during treatment because hyperkalemia is the principal treatment-limiting adverse effect. PubMed+1PubMedProtecting the Kidneys: Update on Therapies to Treat Diabetic Nephropathycatalogues ema europa eu[PDF] Observational Study/Post Authorization Safety Study (PASS ...
Avoid therapeutic duplication of renin-angiotensin system inhibitors at every medication review. Kidney InternationalKidney InternationalKDIGO 2024 Clinical Practice Guideline for the Evaluation and ...
References
- Assessment and management of albuminuria in adults | The BMJ — www.bmj.com · www.bmj.com
- Characteristics of patients with undiagnosed stage 3 chronic kidney ... — www.thelancet.com · www.thelancet.com
- Effectiveness of a systematic home-based albuminuria screening ... — www.thelancet.com · www.thelancet.com
- Chronic kidney disease, complex conditions, and advancing ... — www.thelancet.com · www.thelancet.com
- a randomised, active-controlled double-blind, phase 2b clinical trial — www.thelancet.com · www.thelancet.com
- Chronic Kidney Disease | Annals of Internal Medicine - ACP Journals — www.acpjournals.org · www.acpjournals.org
- Evaluation and Management of Chronic Kidney Disease — www.acpjournals.org · www.acpjournals.org
- Population-Wide Screening for Chronic Kidney Disease: A Cost ... — www.acpjournals.org · www.acpjournals.org
- Risk of Hospital Readmission among People with CKD : Clinical Journal of the American Society of Nephrology — journals.lww.com · journals.lww.com
- Albuminuria in Heart Failure : Cardiology in Review — journals.lww.com · journals.lww.com
- Baseline, Early Changes, and Residual Albuminuria : Clinical Journal of the American Society of Nephrology — journals.lww.com · journals.lww.com
- Early-Stage Chronic Kidney Disease and Related... : JAMA Network Open — journals.lww.com · journals.lww.com
- Executive summary of the KDIGO 2022 Clinical Practice Guideline for Diabetes Management in Chronic Kidney Disease: an update based on rapidly emerging new evidence — www.kidney-international.org · www.kidney-international.org
- KDIGO 2022 Clinical Practice Guideline for Diabetes Management ... — www.kidney-international.org · www.kidney-international.org
- KDIGO 2024 Clinical Practice Guideline for the Evaluation and ... — www.kidney-international.org · www.kidney-international.org
- KDIGO 2020 Clinical Practice Guideline for Diabetes Management ... — www.kidney-international.org · www.kidney-international.org
- [PDF] Chronic Kidney Disease (CKD) - American Society of Nephrology — www.asn-online.org · www.asn-online.org
- Real-Life Experience on the Effect of SGLT2 Inhibitors vs. Finerenone vs. Combination on Albuminuria in Chronic Kidney Disease — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- Clinical Review - Finerenone (Kerendia) - NCBI Bookshelf — www.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
- The appropriateness of finerenone initiation, dosing, and outcomes in diabetic kidney disease: data from real world practice - PMC — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- Protecting the Kidneys: Update on Therapies to Treat Diabetic Nephropathy — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- Dosing, treatment patterns and safety of finerenone use in routine care: an interim analysis of the prospective, real-world and observational FINE-REAL study - PMC — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- [PDF] Observational Study/Post Authorization Safety Study (PASS ... — catalogues.ema.europa.eu · catalogues.ema.europa.eu
- [PDF] Kerendia-5200- II-01-G, INN-finerenone - European Medicines Agency — www.ema.europa.eu · www.ema.europa.eu