Briumvi® (ublituximab-xiiy) is a disease-modifying therapy used to treat relapsing forms of multiple sclerosis (MS). Like Kesimpta and Ocrevus, it is an anti-CD20 therapy that targets certain B cells involved in the abnormal immune activity that occurs with MS.
Briumvi® is a laboratory-developed antibody that targets B cells carrying the CD20 protein. It is described as “glycoengineered” because its structure has been modified during production to help the immune system remove these targeted cells. This term refers to the manufacturing process and does not mean that Briumvi is safer or more effective than other anti-CD20 therapies.⁶
Your healthcare team will consider the type and stage of MS, previous treatment, infection risk, antibody levels, liver function, vaccination history, other health conditions, current medications, and pregnancy plans before deciding whether Briumvi is an appropriate treatment for you.³
Briumvi® may be prescribed for adults with relapsing forms of MS, including:
Briumvi® is used as a long-term therapy to reduce future MS disease activity. It does not treat a relapse that is already in progress or provide immediate relief from current MS symptoms.⁵
Briumvi® targets certain B cells, which are part of the immune system. B cells normally help the body fight infections and build protection after vaccination. In MS, some B cells also take part in the immune attack that causes inflammation and damage in the brain and spinal cord.¹,²,³
Many of the B cells involved in this attack carry a protein called CD20. Anti-CD20 therapies attach to this protein and help the immune system remove these B cells. Decreasing the number of these cells reduces immune activity that can cause new RRMS damage.¹,²,³
Briumvi® is given by a trained healthcare professional as an infusion.
Treatment begins with two initial infusions:
The first infusion takes about 4 hours to complete. When treatment is well tolerated, later infusions may be completed in approximately 1 hour.³
Before every infusion, patients receive medications, typically a steroid and an antihistamine, to help lower the chance of an infusion reaction.³
Two major clinical trials compared Briumvi with teriflunomide, another disease-modifying therapy used for relapsing MS.
People who received Briumvi® experienced approximately 49% to 59% fewer relapses than people who received teriflunomide. Briumvi also substantially lowered the number of active, new, or enlarging areas of MS damage found on MRI scans.⁶
However, the trials did not find a clear difference between the two medications in slowing the worsening of problems involving movement, thinking, or daily activities.⁶ The results support Briumvi®’s ability to reduce relapses and RRMS activity, but they do not establish a clear benefit for preventing these problems from worsening.
Infusion reactions are the most frequently reported side effects with Briumvi® and are most likely to occur during the first infusion. Symptoms may include fever, chills, headache, flu-like symptoms, nausea, throat irritation, a fast heartbeat, or reddened skin.⁵
Seek immediate medical treatment for:
Serious risks associated with anti-CD20 therapy may include serious infections, severe infusion reactions, low antibody levels, liver injury, and progressive multifocal leukoencephalopathy (PML), a rare but serious brain infection.¹,²,³
Patients should tell their healthcare team about new or worsening symptoms, unexpected reactions, medication changes, or other health concerns. Obtain immediate medical help for serious symptoms, including difficulty breathing, swelling of the face or throat, fainting, or signs of a severe reaction.
During treatment, the healthcare team continues to monitor for infections, changes in antibody levels, liver problems, and reactions related to an infusion. Treatment may be delayed when an active infection is present.¹,²,³
Patients with relapsing multiple sclerosis can find access to Briumvi® through several program options. Some of those programs may help lower out-of-pocket costs for eligible patients with private insurance, provide assistance with insurance coverage and financial support options, help patients locate an infusion center, or provide financial assistance to eligible patients who are uninsured or underinsured. Learn more about savings and support for BRIUMVI®
Do not stop Briumvi® or change your treatment schedule without speaking with your healthcare provider.
This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking any drug or commencing or discontinuing any course of treatment.
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