Eisai Korea has completed negotiations with the National Health Insurance Service for its JAK inhibitor ‘Jyseleca Tab (filgotinib).’ As a result, Jyseleca is now on the verge of being listed for reimbursement in Korea.

This drug is the 5th JAK inhibitor introduced to Korea. It has a mechanism of action that selectively inhibits JAK1, the main treatment target for rheumatoid arthritis. JAK1 is a substance that transmits inflammatory cytokine signals.

Results of the global FINCH Phase 3 study showed that the drug improved arthritis symptoms by more than 20% at 12 weeks when administered to patients with moderate-to-severe active RA (rheumatoid arthritis) despite continued methotre