The approval is based on findings from the Phase III MARCH clinical trial in 93 PFIC patients.
The randomised trial enrolled people with PFIC genetic types PFIC1, PFIC2, PFIC3, PFIC4 and PFIC6, along with people with unidentified mutational status.
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In addition to its current approvals, Mirum has filed a supplemental new drug application to the FDA. The aim is to introduce a higher concentration formulation of LIVMARLI, which was utilised in the Phase III MARCH study.
This could expand the treatment’s label for younger PFIC patients later in 2024.
Mirum Pharmaceuticals CEO Chris Peetz stated: “LIVMARLI has the potential to have a transformational impact for patients with cholestatic pruritus associated with PFIC, and importantly, offers an option for those patients with the rarest of subtypes.
“Thank you to the patients, families and clinicians whose study participation made this approval possible.”
In September 2023, the company concluded the acquisition of the bile acid product portfolio of Travere Therapeutics.