CymaBay Therapeutics Plans NDA for Seladelpar

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CymaBay Therapeutics says it will seek FDA approval for seladelpar after reporting positive data from its pivotal Phase 3 RESPONSE study that evaluated the drug for treating adult patients with primary biliary cholangitis (PBC). In the study, 61.7% of patients on seladelpar 10 mg (n=128) met the primary composite endpoint related to serum alkaline phosphatase and bilirubin at 12 months versus 20.0% on placebo (n=65; p<0.0001),” the company says. “The anti-cholestatic effect of seladelpar was supported by the normalization of alkaline phosphatase at 12 months (key secondary endpoint) in 25.0% of patients on seladelpar vs. zero on placebo (p<0.0001),” it adds.

The company also says that safety was comparable between placebo and seladelpar groups and was consistent with previous studies. “Treatment-emergent adverse events, serious adverse events, and patient discontinuations were generally balanced across the treatment and placebo arms,” it says, adding that no treatment-related serious adverse events in the study were reported.

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