Why is Mesoblast stock surging today?
Mesoblast (MESO) shares rose about 9.5% after the company said it completed patient treatment in the MSB-DR004 pivotal Phase 3 trial of rexlemestrocel-L for chronic low back pain from degenerative disc disease. The trial enrolled 350 patients versus 300 planned. The primary endpoint targets durable pain reduction at 12 months, with FDA RMAT designation and a BLA submission targeted for Q3 2027.





