Mesoblast Achieves Major Milestone Completing Patient Treatment in Pivotal Phase 3 Trial for Chronic Low Back Pain
NEW YORK, Aug. 16, 2026 -- Mesoblast Limited (Nasdaq:MESO; ASX:MSB), global leader in allogeneic cellular medicines for inflammatory diseases, today announced that it has completed patient treatment in the MSB-DR004 pivotal randomized controlled Phase 3 trial of rexlemestrocel-L for chronic low back pain (CLBP) associated with the inflammatory condition of degenerative disc disease. The major milestone was achieved with 350 patients randomized and treated with either an intra-discal injection of rexlemestrocel-L or sham injection. Total patient numbers treated increased from 300 to 350 after strong demand from trial investigators to have their patients enrolled in the innovative program.