Tysabri safe as treatment for MS during pregnancy, breastfeeding

Tysabri (natalizumab), an approved treatment for forms of multiple sclerosis (MS), can be safely used during pregnancy or while breastfeeding, a study showed. “The findings of our observational study offer … relevant insight into the safety profile of [Tysabri] therapy not only during pregnancy but also during breastfeeding,”…

Tysabri may reduce risk of disability progression in SPMS: Analysis

Treatment with Tysabri (natalizumab) may help delay disability progression in people with secondary progressive multiple sclerosis (SPMS) over Rebif (interferon beta-1a), an analysis of data from two clinical trials suggests. While the trials initially failed to demonstrate slowing disease progression, a significant benefit was observed when accounting…

Tysabri biosimilar Tyruko now available in Germany for RRMS

Tyruko (natalizumab), the first biosimilar of Tysabri, is now available in Germany for adults with highly active relapsing-remitting multiple sclerosis (RRMS). As a biosimilar, Tyruko has the same safety and efficacy profile, mechanism of action, and pharmacological properties as Tysabri. Biosimilars are typically sold at lower prices than their reference medication,…

Extending Tysabri dose intervals controls RRMS activity

Extending Tysabri (natalizumab) dosing intervals based on the drug’s blood levels was as effective at controlling disease activity in people with relapsing-remitting multiple sclerosis (RRMS) as the approved four-week dosing regimen. That’s according to results from NEXT-MS (NCT04225312), a Phase 4 clinical trial studying whether tailoring Tysabri’s…

PML caused by Tysabri results in lasting neurological symptoms

People with multiple sclerosis (MS) who develop progressive multifocal leukoencephalopathy (PML) as a side effect of Tysabri (natalizumab) often see their neurological symptoms worsen severely during the infection and their disability gradually accumulate over time. That’s according to a study in Austria, which also showed that most disability progression…

Early Use of Tysabri Treatment Linked to Greater Benefits

Multiple sclerosis (MS) patients who started taking Tysabri (natalizumab) long after their diagnosis were found to have worsened disease progression. But those who began using it earlier showed less aggravated clinical and radiological outcomes of the disease than participants who started treatment later, a study showed. The study,…

Black and Hispanic RRMS Patients Show High Levels of Immune Cells Linked to Antibodies, US Study Reports

African-Americans and Hispanics with relapsing-remitting multiple sclerosis (RRMS) have higher blood levels of plasmablasts, a type of inflammatory immune cell that produces antibodies, than do Caucasians with this disease, a study found. The study “Black African and Latino/a identity correlates with increased plasmablasts in MS” was published in the journal…

Need to Know: What Is the JC Virus?

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question is inspired by the forum topic “Does PML worry you?” from April 18. The world of multiple sclerosis (MS)…

MS News that Caught My Eye Last Week: Stem Cell Transplants, Remyelination Agent, Tecfidera Study, Plasma Exchange and Tysabri-linked PML

It’s been a big week for interesting stories, as the annual meeting of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) has just concluded. The conference offered much to engage healthcare professionals and researchers, but the following are some presentations that appealed to me as a multiple…

Need to Know: What Is the Blood Brain Barrier?

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question is inspired by the forum topic “How the Blood Brain Barrier May Thwart MS Progression” from Feb. 9, 2017. What…