Which statins have increased concentrations in severe CKD?

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Multiple Choice

Which statins have increased concentrations in severe CKD?

In severe CKD, drug clearance can drop and drugs that rely on renal excretion or have metabolites that are cleared by the kidneys tend to build up. Rosuvastatin fits this pattern because it is significantly cleared by the kidneys (a notable portion is excreted unchanged in urine). As kidney function worsens, rosuvastatin concentrations rise, so dose reductions and careful monitoring are advised. Atorvastatin, while mainly cleared by the liver, also has active metabolites that are eliminated by the kidneys. CKD can alter protein binding and hepatic metabolism, which can increase overall exposure to atorvastatin and its metabolites. This is why levels can be higher in severe CKD and why clinicians approach its use with caution in these patients. The other statins are less affected by severe CKD in terms of clear-cut increases in plasma concentrations, either because they are cleared more by the liver or have less reliance on renal excretion, so they don’t show the same degree of accumulation as rosuvastatin (and to a lesser extent atorvastatin) in this setting.

In severe CKD, drug clearance can drop and drugs that rely on renal excretion or have metabolites that are cleared by the kidneys tend to build up. Rosuvastatin fits this pattern because it is significantly cleared by the kidneys (a notable portion is excreted unchanged in urine). As kidney function worsens, rosuvastatin concentrations rise, so dose reductions and careful monitoring are advised.

Atorvastatin, while mainly cleared by the liver, also has active metabolites that are eliminated by the kidneys. CKD can alter protein binding and hepatic metabolism, which can increase overall exposure to atorvastatin and its metabolites. This is why levels can be higher in severe CKD and why clinicians approach its use with caution in these patients.

The other statins are less affected by severe CKD in terms of clear-cut increases in plasma concentrations, either because they are cleared more by the liver or have less reliance on renal excretion, so they don’t show the same degree of accumulation as rosuvastatin (and to a lesser extent atorvastatin) in this setting.

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