Multiple sclerosis (MS) is a chronic unpredictable neurological autoimmune disease that affects an estimated 1 million adults in the U.S. and 2.3 million adults globally.1,2 In MS, the immune system mistakenly attacks the central nervous system (CNS), which is made up of the brain, spinal cord, and optic nerves. MS can affect a person’s muscle control, balance, vision, sensation, and cognitive function. Of the individuals living with MS globally, 1 million live with a progressive form of MS, including secondary progressive MS (SPMS) and primary progressive MS (PPMS).2,3 These individuals can face enormous uncertainty as they experience worsening symptoms and gradual accumulation of disability affecting their daily lives and outlook on life.
People living with
progressive forms of MS
among people with MS
Though the exact cause of MS is still unknown, environmental and genetic risk factors are associated with developing MS. Epstein-Barr virus (EBV) is a well-established risk factor in MS supported by more than 20 years of research demonstrating the link between EBV infection and development of MS.4,5
About 95 percent of people around the world are infected with EBV at some point in their lives. However, most people’s immune system can control the virus, which remains hidden in human B cells with little or no adverse effects.5 EBV infection has been reported in up to 100 percent of people with MS.6-8
Despite advances in MS, treatment options are few for those living with progressive forms of MS. There is an urgent need for new and innovative treatment options that slow or reverse disability.
Atara is developing ATA188, an investigational therapy which is intended to specifically recognize EBV-infected immune cells (B cells and plasma cells) in the CNS, which may be causing the disease.
We are currently enrolling the randomized double-blind placebo-controlled part of the ATA188 clinical trial for the treatment of progressive forms of MS. More information can be found on clinicaltrials.gov (NCT03283826).
This trial is currently seeking participants at sites across the U.S. and Australia.
If you or someone you know is living with progressive forms of MS and is interested in participating or learning more, please contact your healthcare providers or you can contact Atara directly.Contact Us