78-Week results from Phase III randomized controlled trial (RCT) including switching data from reference denosumab to CT-P41 (biosimilar candidate of denosumab) demonstrate comparable efficacy and safety results; Results support the therapeutic equivalence of CT-P41 and reference denosumab in treating postmenopausal women with osteoporosis (PMO) [1] Data from the Phase III RCT showed comparable and sustained efficacy, safety and immunogenicity profile to the reference tocilizumab in patients with active moderate-to-severe rheumatoid arthritis (RA) over 1-year after single transition from Week 24 [2] JERSEY CITY, N.J. , Nov.

18, 2024 /PRNewswire/ -- Celltrion today presented additional data from a Phase III randomized controlled trial (RCT) for CT-P41, a biosimilar candidate referencing PROLIA ® /XGEVA ® (denosumab) in postmenopausal women with osteoporosis (PMO) and a Phase III RCT for CT-P47, a biosimilar candidate referencing ACTEMRA ® (tocilizumab) in patients with moderate-to-severe active rheumatoid arthritis (RA) at the American College of Rheumatology (ACR) Convergence 2024 in Washington, D.C. The additional efficacy and safety results from Week 52 to Week 78 including switching data from reference denosumab to the CT-P41 (Treatment Period [TP] II) showed comparable and sustained efficacy results to reference denosumab in treating women with PMO after the single transition from reference denosumab to CT-P41.

CT-P41 was well tolerated with a safety profile comparable.