Taiho’s Lytgobi Faces Heavy Competition, But Sets Efficacy Bar For Now

The FGFR inhibitor beats prior entrants on efficacy in cholangiocarcinoma, although Relay presented data at ESMO for its investigational RLY-4008 showing especially high efficacy and tolerability.

Taiho Oncology won approval for Lytgobi in intrahepatic cholangiocarcinoma • Source: Shutterstock

Otsuka Pharmaceutical Co. Ltd. subsidiary Taiho Pharmaceutical Co. Ltd.’s newly approved FGFR inhibitor, Lytgobi (futibatinib), is going for a subset of a subset of patients with cholangiocarcinoma that represents a narrower population than its competitors, but could dominate that segment based on its better efficacy numbers. However, Relay Therapeutics, Inc.’s early-stage candidate, RLY-4008, has shown response rates that could pose an even greater competitive threat.

Otsuka’s Taiho Oncology division received accelerated approval on 30 September from the US Food and Drug Administration for Lytgobi in patients with previously treated, unresectable, locally advanced or metastatic intrahepatic cholangiocarcinoma (iCCA) harboring FGFR2 gene fusions or other rearrangements

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