Endo Statin Selection Renal Clearance Chronic Kidney Disease

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name: endo-statin-selection-renal-clearance-chronic-kidney-disease
description: Recommends considering renal clearance when selecting a statin in chronic kidney disease, preferring pitavastatin, pravastatin, and rosuvastatin which have partial kidney clearance over atorvastatin, fluvastatin, lovastatin, and simvastatin which are cleared via the liver. Triggers include: Patient with CKD needing statin selection, Assessing statin safety in renal impairment, Choosing appropriate statin for kidney function.
---

# Select statin based on renal clearance in chronic kidney disease

## STEP 1 — Gather Information
Collect eGFR, CKD stage, urine albumin-to-creatinine ratio, current statin use, LDL-C level, ASCVD risk, concomitant medications (especially cyclosporine, gemfibrozil), pregnancy status, age >75 years, and history of statin intolerance. Proceed to assess renal function and statin safety.

## STEP 2 — Rule In / Rule Out
Determine if the patient has CKD stages 1–4 or postrenal transplant (rule in) versus end-stage renal disease requiring dialysis (rule out). If CKD stages 1–4/postrenal transplant, proceed to statin selection; if ESRD on dialysis, consider statin continuation only if already on statin and do not initiate new statin therapy.

## STEP 3 — Classify or Stratify
Classify statins by renal clearance: prefer pitavastatin, pravastatin, or rosuvastatin (partial kidney clearance) over atorvastatin, fluvastatin, lovastatin, or simvastatin (hepatic clearance). Select a statin from the preferred list based on LDL-C goal and drug interactions.

## STEP 4 — Decide
Initiate the chosen statin at a starting dose appropriate for CKD stage (e.g., pravastatin 10–20 mg daily, rosuvastatin 5–10 mg daily, pitavastatin 1–2 mg daily); note that atorvastatin and fluvastatin do not require dose adjustment in CKD. Monitor for muscle symptoms, liver enzymes, and renal function, and reassess LDL-C and safety within 4–12 weeks.

## Clinical Guardrails / Mimics / Pitfalls
Avoid initiating statin therapy in pregnancy; do not use gemfibrozil with any statin due to increased rhabdomyolysis risk; do not rely solely on LDL-C targets without considering renal clearance and dose adjustment; avoid high-intensity statins in frail elderly or those with multiple interacting medications unless benefit clearly outweighs risk; do not assume all statins are safe in ESRD without nephrology input.

## Concrete Clinical Example
A 58-year-old with type 2 diabetes, CKD stage 3b (eGFR 38 mL/min/1.73m²), LDL-C 110 mg/dL, no ASCVD, and not on a statin requires lipid-lowering therapy. After confirming CKD stage 3b, a statin with partial kidney clearance is chosen; pravastatin 20 mg daily is initiated (dose adjusted for CKD), LDL-C rechecked in 6 weeks, and therapy continued if tolerated and LDL-C goal <70 mg/dL approached.

**Source:** Lipid Management in Patients with Endocrine Disorders: An Endocrine Society Clinical Practice Guideline, Endocrine Society, 2020, doi:10.1210/clinem/dgaa674
> **TODO:** consider adding scripts/calc.py for the endo-statin-selection-renal-clearance-chronic-kidney-disease calculator