Study Drugs

Everyone who joins this clinical trial will be split into two groups randomly and receive either the investigational drug (fenebrutinib) or the comparator drug.

About the Investigational Drug

immune system

The immune system is a complete network of cells that work together to protect the body from harmful substances.

immune system

B cells are one component of this network. They produce antibodies to help the body fight harmful substances, but in some autoimmune conditions, such as multiple sclerosis, B cells can overreact and cause harm.

immune system
immune system

The investigational drug, fenebrutinib, is designed to work by suppressing B cells.

Fenebrutinib has been studied in more than 1,200 people to date across several inflammatory diseases

About the Comparator Drug

The comparator drug is a currently-available, approved treatment for RMS. It is administered as a once-daily pill.