Discontinuation of Angiotensin Receptor Blockers in Chronic Kidney Disease
Indications for Discontinuation
- The Kidney International guideline recommends discontinuing ARBs in CKD patients with symptomatic hypotension, uncontrolled hyperkalemia despite medical treatment, or advanced kidney failure (eGFR <15 ml/min per 1.73 m²) with uremic symptoms 1, 2
- The Kidney International guideline suggests that ARBs should be discontinued in patients with uncontrolled hyperkalemia (serum potassium >6.5 mEq/L) that persists despite potassium-lowering interventions 4, 5
- The Kidney International guideline recommends discontinuing ARBs in patients with serum creatinine rise >30% within 4 weeks of initiation or dose increase 5, 6
- The Kidney International guideline advises against using ARBs in pregnancy or planning pregnancy due to fetal risks 5
Management Algorithm Before Discontinuation
- For hyperkalemia (K+ 5.0-6.5 mEq/L), the Mayo Clinic Proceedings guideline recommends reviewing concurrent medications, implementing dietary potassium restriction, and considering adding or increasing diuretic therapy or potassium binders before reducing ARB dose 4, 6
- For creatinine rise, the Kidney International guideline suggests evaluating for volume depletion, reviewing for potential causes of acute kidney injury, and reassessing concomitant medications before discontinuing ARBs 5, 6
- For advanced CKD (eGFR <30 ml/min per 1.73 m²), the Kidney International guideline recommends continuing ARB therapy unless eGFR falls below 15 ml/min per 1.73 m² with uremic symptoms 1, 2
Important Considerations
- The Kidney International guideline states that ARBs provide significant renoprotection in CKD patients with albuminuria and should be continued unless contraindicated 1, 2
- The Kidney International guideline recommends checking serum creatinine and potassium within 2-4 weeks after starting or changing ARB dose and monitoring every 3-6 months for stable patients on maintenance therapy 1, 5
- The British Journal of Pharmacology guideline suggests that more frequent monitoring (every 1-2 weeks) may be needed in advanced CKD or after dose adjustments 8
Special Situations
- The Kidney International guideline strongly recommends ARBs for diabetic patients with CKD and albuminuria and suggests considering adding SGLT2 inhibitor before discontinuing ARB in diabetic CKD patients with eGFR ≥20 ml/min per 1.73 m² 1, 5
- The Mayo Clinic Proceedings guideline recommends greater tolerance for mild-moderate hyperkalemia (K+ 5.0-5.5 mEq/L) in heart failure patients with CKD due to cardiovascular benefits and considering potassium binders to maintain ARB therapy rather than discontinuation 4