Patent No. EP3923943 (titled "Genotype And Dose-Dependent Response To An Asbti In Patients With Bile Salt Export Pump Deficiency") was filed by Mirum Pharmaceuticals on Feb 12, 2020. The application was issued on Jul 31, 2024.
Modulating bile acid transport in cholestatic liver disease through targeted inhibition of apical sodium-dependent bile acid transporters (ASBTIs). The ASBTIs specifically target the apical bile acid export pump (BSEP) to prevent bile acid reabsorption and promote bile acid excretion. The treatment modulates the ASBTI dosage to achieve optimal bile acid clearance while maintaining bile acid levels within therapeutic ranges. The method utilizes genetic testing to predict the response to ASBTI therapy based on the patient's ABCB11 gene sequence, which determines the functional status of the BSEP protein.

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| Company | Opposition Date | Representative |
|---|---|---|
| GENERICS UK | Apr 30, 2025 | RUSSELL |
| SANDOZ | Apr 30, 2025 | MAIWALD |
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