Mirum Pharmaceuticals Announces Data from EMBARK Phase 2b Study for Biliary Atresia

- Study did not meet primary or secondary endpoints.

- LIVMARLI was generally well-tolerated, with no new safety findings.

FOSTER CITY, Calif.--(BUSINESS WIRE)-- Mirum Pharmaceuticals, Inc. (Nasdaq: MIRM), today announced top-line results of the Phase 2 EMBARK study evaluating LIVMARLI® (maralixibat) oral solution versus placebo given as an adjuvant therapy to Kasai surgery in patients with biliary atresia. The study did not meet its primary endpoint of mean change in bilirubin from baseline to Week 26, or the key secondary endpoints. Baseline characteristics were well-balanced between the groups. LIVMARLI was generally well-tolerated, with no new safety findings.

“We are disappointed in the outcome of the study in this post-surgery, high-need disease setting,” said Chris Peetz, president and chief executive officer at Mirum. “We are grateful to the patients, families, and clinicians who participated in the study and advanced the science around this rare liver disease.”

About the EMBARK Study

The Phase 2b EMBARK study is a randomized, double-blind, placebo-controlled clinical trial evaluating the safety and efficacy of LIVMARLI® (maralixibat) oral solution in patients with biliary atresia who have undergone a Kasai surgery. Patients enrolled in the study were ≥21 days old and