PGx ELIGLUSTAT

Scientifically reviewed | Last updated July 14, 2025
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CYP2D6

The active substance eliglustat is intended for the long-term treatment of adult patients with Gaucher disease type 1 (GD1).

 

Eliglustat is a highly effective, specific inhibitor of glucosylceramide synthase and acts as a substrate reduction therapy (SRT) in GD1. The aim of SRT is to reduce the synthesis rate of the main substrate glucosylceramide (glucosylceramide, GL-1) in order to prevent its excessive accumulation and thus alleviate the symptoms of the disease.

 

Eliglustat is primarily metabolized via the enzyme CYP2D6 and to a lesser extent by CYP3A4. The efficacy and tolerability of the drug largely depend on the patient’s CYP2D6 metabolizer status. Therefore, the metabolizer type must be determined before starting therapy in order to establish the appropriate dosage. The medication should not be used in patients who are CYP2D6 ultra-rapid metabolizers or whose metabolizer status is unclear. In patients with intermediate or extensive (normal) metabolizer types, drug interactions—particularly with CYP2D6 and CYP3A4 inhibitors—must be considered, as co-administration can lead to significantly increased plasma concentrations of eliglustat.

 

Further information on genotypes and the use of eliglustat can be found in the product information for Cerdelga®.

 

References

Summary of product characteristics Cerdelga®

GENES
CYP2D6
HOW CAN YOU GET TESTED?
Step 1: Visit healthcare professional
Step 2: Sample collection (blood or buccal swab)
Step 3: Sequencing performed at our accredited laboratory
Step 4: Medical report
Step 5: Genetic counselling
FAQ

In which clinical scenarios should PGx Eliglustat diagnostic testing be considered?

How long does it take to receive PGx Eliglustat test results?

How do pharmacogenetic insights support personalized treatment decisions for Gaucher disease?

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