Tysabri

Two of the most effective treatments for relapsing-remitting multiple sclerosis (MS) — Ocrevus (ocrelizumab) and Tysabri (natalizumab) — are essentially matched in their ability to control the disease, a new nationwide study from Denmark suggests. Researchers found no significant difference between the two therapies in preventing relapses, slowing…

The National Institute for Health and Care Excellence (NICE) in England is recommending natalizumab — sold as Tysabri and Tyruko — as an option for certain people with hard-to-control multiple sclerosis (MS). NICE is responsible for deciding which medicines will be covered by the National Health Service…

Tyruko (natalizumab-sztn) is now commercially available in the U.S. as the first and only approved biosimilar to Tysabri for adults with relapsing forms of multiple sclerosis (MS). The therapy received approval from the U.S. Food and Drug Administration (FDA) in 2023 for all indications covered by the…

A stem cell transplant may offer better long-term results for people with aggressive multiple sclerosis (MS) compared with standard high-efficacy drug treatment, according to new evidence presented at a major European conference this week. Specifically, researchers found that an autologous hematopoietic stem cell transplant (aHSCT) was superior to…

A team of U.S. and Chinese researchers appears to have unlocked a novel way to stop T-cells from attacking the body in multiple sclerosis (MS) and other autoimmune diseases, according to the findings of a new study. An experimental therapy called BiTS, developed based on these new molecular insights,…

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,”…

One year of Tysabri (natalizumab) treatment improves working ability among people with relapsing-remitting multiple sclerosis (RRMS), according to new data from TITAN, an observational study by researchers in France that assessed the impact of the infusion therapy. Use of the approved therapy resulted in improvements across several parameters:…

From 2019 to 2023, people with relapsing-remitting multiple sclerosis (RRMS) in France on treatment with Tysabri (natalizumab) adopted more at-home dosing and longer periods between doses, according to a review by researchers of the French national hospital database. An increasing use of the therapy during…

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…

Starting Tysabri (natalizumab) early in multiple sclerosis (MS) treatment may lead to better outcomes, including greater reductions in relapse rates and less use of MS-related healthcare services over starting it after other therapies. That’s according to a U.S. healthcare claims analysis of more than 1,500 adults with MS.

A large majority of people with relapsing-remitting multiple sclerosis (RRMS) who received Tysabri (natalizumab) in a real-world setting experienced no evidence of disease activity for as long as six years, according to a study from a single center in Hungary. No evidence of disease activity, known as NEDA-3,…

By studying pairs of identical twins, researchers have identified a population of immune cells whose early activation and migration into the brain might contribute to multiple sclerosis (MS) onset. MS patients showed an altered profile of a population of immune cells called CD8 T-cells in the blood relative to…

Switching to one of the anti-CD20 targeting therapies Ocrevus (ocrelizumab) or rituximab may be an effective strategy for discontinuing Tysabri (natalizumab) treatment in multiple sclerosis (MS) patients at risk for progressive multifocal leukoencephalopathy (PML), according to a systematic review. The study, “Switching from natalizumab to an…

People with multiple sclerosis (MS) who are being treated with Tysabri (natalizumab) tend to prefer receiving the medication as a subcutaneous (under-the-skin) injection rather than an intravenous (into-the-vein) infusion, according to new data from an observational study. “Based on current data, there is a trend toward patients’ preference…

People who start treatment with Tysabri (natalizumab) soon after being diagnosed with multiple sclerosis (MS) are at a lower risk of relapse in the long term compared with patients who start on less effective disease-modifying therapies (DMT), a study has found. Patients on Tysabri, an antibody-based therapy,…

Taking antibody-based medications for multiple sclerosis (MS) while breastfeeding does not appear to harm a child’s health or development during at least the first three years of life, according to a preliminary study of more than 180 babies. Children breastfed by mothers taking Tysabri (natalizumab), Ocrevus (ocrelizumab),…

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 (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…

Welcome to “MS News Notes,” a column where I comment on multiple sclerosis (MS) news stories that caught my eye last week. This week, the stories cover research presented at the joint meeting of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) and the…

A personalized dosing schedule for Tysabri (natalizumab) that aims to maintain blood levels of the drug above a certain threshold seems to be just as effective for controlling disease activity in relapsing-remitting multiple sclerosis (RRMS) as the approved every-four-week dosing schedule. That’s according to interim data from an…

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…

The European Commission has approved Tyruko (natalizumab), the first biosimilar of Tysabri, for the treatment of adults with highly active relapsing-remitting multiple sclerosis (RRMS). The approval makes Tyruko available in the European Union for the same indication as its reference medicine. It also marks the first approval…

Tysabri (natalizumab) significantly reduced the development of brain lesions on MRI scans in Japanese people with relapsing-remitting multiple sclerosis (RRMS), according to a new study. The therapy also eased or stabilized disability levels in most patients after five years of treatment, and significantly reduced the annual rate of…

The late August approval of Tyruko (natalizumab-sztn) by the U.S. Food and Drug Administration (FDA) is big news in the multiple sclerosis (MS) world. Tyruko is a biosimilar for Tysabri (natalizumab), and it’s the first biosimilar to gain FDA approval as an MS disease-modifying therapy…

The U.S. Food and Drug Administration (FDA) has approved Tyruko (natalizumab-sztn) as the first biosimilar of Tysabri to treat adults with relapsing forms of multiple sclerosis (MS). The decision also marks the first approval of any biosimilar for MS in the country, according to the regulatory agency.

Levels of GFAP protein in the blood — a marker of damage to support cells in the brain — were associated with the enlargement of brain lesions and of fluid-filled brain cavities called ventricles in people with relapsing-remitting MS (RRMS) undergoing Tysabri (natalizumab) treatment, a study showed. While…

The Committee for Medicinal Products for Human Use (CHMP), an arm of the European Medicines Agency, has recommended that PB006, a biosimilar version of Tysabri (natalizumab), be approved to treat adults with highly active relapsing-remitting multiple sclerosis (RRMS). The recommendation comes about a year after the regulatory agency…

Tysabri (natalizumab) is better than five other disease-modifying therapies (DMTs) at reducing relapses and preventing disability worsening in relapsing-remitting multiple sclerosis (RRMS), according to the findings of a novel simulated clinical trial that directly compared the six treatments. The analysis used mathematical modeling to emulate a clinical trial…

Switching from Tysabri (natalizumab) to Ocrevus (ocrelizumab) does not appear to increase disease activity in people with relapsing forms of multiple sclerosis (MS) and stable disease, with most patients continuing to show no relapses or brain imaging findings one year after the transition, a clinical study shows.

Ocrevus (ocrelizumab) — given by infusion — may work better than certain oral treatments to prevent relapses and disability worsening in people with relapsing-remitting multiple sclerosis (RRMS) who transition from Tysabri (natalizumab), a new study found. Individuals who switched to Ocrevus also were more likely to stay…