Mirum Application to FDA for Chenodiol for the Treatment of CTX

 Mirum Pharmaceuticals, Inc. (Nasdaq: MIRM) today announced the submission of a new drug application (NDA) for chenodiol for the treatment of patients in the U.S. with cerebrotendinous xanthomatosis (CTX).

CTX is a rare autosomal genetic progressive disorder of cholesterol metabolism that affects many parts of the body. In CTX, a deficiency of the bile acid CDCA leads to a buildup of bile alcohols which precedes a toxic accumulation of cholestanol. Cholestanol is the key driver of symptomatic burden and disease progression, including irreversible neurologic dysfunction. If not treated, patients with CTX can experience symptoms that disrupt their lives and can progress over time, including chronic diarrhea, juvenile bilateral cataracts, tendon xanthomas, and neurologic deterioration.

The submission of the NDA is based on the positive results of the Phase 3 RESTORE study which evaluated chenodiol in adult patients with CTX. The study met its primary endpoint of reduction in bile alcohols with high statistical significance (p<0.0001). The difference observed between placebo and active chenodiol at the end of the randomized double-blind withdrawal period was 20-fold. The RESTORE study also demonstrated that treatment with chenodiol significantly improved serum cholestanol. The most common adverse events were diarrhea and headache, the majority of which were mild or moderate and not considered to be treatment related.

https://www.biospace.com/article/releases/mirum-submits-new-drug-application-to-fda-for-chenodiol-for-the-treatment-of-ctx/