A U.S. regulatory decision on tolebrutinib will again be delayed while a late-stage trial of the drug for a different form of ...

Sanofi’s multiple sclerosis hopeful tolebrutinib faced dual setbacks on Monday, with a late-stage failure in one form of the ...

Results from the PERSEUS Phase III study showed that tolebrutinib did not meet its primary endpoint in delaying time to ...

Shares of Sanofi slumped on Monday as the French drugmaker said a U.S. regulatory review of its multiple-sclerosis drug won’t ...

Sanofi provides update on tolebrutinib in primary progressive multiple sclerosisPERSEUS phase 3 study in primary progressive multiple sclerosis ...

Sanofi's stock was in the red on Monday after the pharma group gave two disappointing updates regarding its tolebrutinib ...

Tolebrutinib was one of three oral BTK inhibitors that Sanofi acquired as part of its $3.7 billion buyout of Principia ...

Tolebrutinib received provisional approval in the United Arab Emirates in July 2025 for non-relapsing secondary progressive ...

Sanofi shares slide after FDA delays review of its MS drug tolebrutinib and a late-stage trial fails to meet its main goal.

Continued advancements in treatment and care are improving outcomes for people with MS. Multiple sclerosis (MS) develops when your immune system mistakenly attacks myelin, the protective coating that ...

Dec 15 () - Shares of French pharmaceutical group Sanofi fell 4% on Monday after it flagged another delay to ​a U. regulatory ...