Chronic Inflammatory Demyelinating Polyradiculoneuropathy Association With Low Cholesterol Levels: A Case Report in a Patient Taking PCSK9 Inhibitor

Diana Carolina Franco, Neelam Neupane, Maria Riaz, Sanaz Mohammadzadeh, Issac Sachmechi


A 57-year-old woman with history of prediabetes and dyslipidemia treated with PCSK9 inhibitors due to statin intolerance presented to the clinic with complaints of bilateral thigh pain, weakness and numbness. During the physical exam, the patient exhibited stocking loss of vibratory and cold temperature sensation in both legs, absent ankle reflexes and tandem imbalance with normal cranial nerve functions. After all the clinical studies, the patient was diagnosed with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) as an exclusion diagnosis. A link with medications (Praluent) was determined to be the most possible offending agent. With this case, we present a rare case of CIDP in the setting of low level of low-density lipoprotein cholesterol (LDL-C) due to PCSK9 inhibitors. This case opens the door to a new and unrecognized adverse effect of this type of medication.

J Neurol Res. 2019;9(4-5):72-74


CIDP; Low cholesterol levels; PCSK9 inhibitor

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