FIELD OF APPLICATIONDETAILS
Generic Name
Ublituximab-xiiy
Active Ingredient
Ublituximab-xiiy
US Brand Names
Briumvi
Drug Category
Neurology
Drug Class
Anti-CD20 Monoclonal Antibody

Ublituximab-xiiy Overview

Ublituximab-xiiy is a recombinant monoclonal antibody designed for the treatment of relapsing forms of multiple sclerosis in adults. It functions as an advanced targeted therapy to selectively deplete specific immune cells and reduce neuroinflammation in specialized neurological care.

What Is Ublituximab-xiiy & How Does It Work?

Ublituximab-xiiy works by targeting and binding to CD20, a protein found on the surface of pre-B and mature B lymphocytes. Once attached, it triggers immune mechanisms that clear these specific B cells from the bloodstream and central nervous system. Because abnormal B cell activity plays a key role in attacking the protective nerve sheath in multiple sclerosis, removing these cells significantly reduces brain inflammation, nerve damage, and disease relapses.

Is Ublituximab-xiiy FDA Approved?

The United States Food and Drug Administration has approved Ublituximab-xiiy for the treatment of relapsing forms of multiple sclerosis in adults, including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease. Neurologists administer this intravenous therapy to decrease annualized relapse rates and suppress magnetic resonance imaging lesion activity.

What Is Ublituximab-xiiy Used For, Clinic Neurology

  • Treating relapsing forms of multiple sclerosis in adult patients within Clinic Neurology.
  • Reducing the frequency of clinical relapses and preventing new brain lesion formation.
  • Slowing disability progression in patients with active relapsing-remitting or secondary progressive disease.

Before Taking Ublituximab-xiiy: Contraindications & Precautions

Healthcare providers perform comprehensive blood screens, hepatitis viral checks, and immunoglobulin testing prior to initiating Ublituximab-xiiy. Thorough pre-treatment screening confirms patient safety, verifies vaccination status, and prevents severe reactivation of latent systemic infections.

Who Should Not Take Ublituximab-xiiy?

  • Patients with an active hepatitis B virus infection confirmed by serological testing.
  • Individuals with a documented history of life-threatening infusion reactions to Ublituximab-xiiy.
  • Patients with severe active systemic infections until the infection is fully resolved.

Ublituximab-xiiy, Pregnancy & Fertility

  • Based on findings from animal studies and its mechanism of action, Ublituximab-xiiy may cause fetal harm and B-cell depletion in newborns exposed in utero.
  • Females of reproductive potential should use effective contraception during treatment and for at least six months after the final infusion.
  • Pregnant or nursing mothers should consult their neurologist to weigh clinical benefits against potential risks to the developing fetus or infant.

Tell Your Doctor Before Taking Ublituximab-xiiy

  • History of recurrent or chronic infections, including hepatitis B, tuberculosis, or progressive multifocal leukoencephalopathy.
  • Recent receipt of live or live-attenuated vaccines, or upcoming immunization plans.
  • History of cardiac conditions or severe infusion-related reactions during previous biologic therapies.

Ublituximab-xiiy Dosage & Administration

Ublituximab-xiiy is supplied as a single-dose vial that must be diluted by a healthcare professional and administered via intravenous infusion. Patients receive pre-medication prior to every infusion to minimize the likelihood of infusion-related adverse events.

Standard Ublituximab-xiiy Dosing

  • The initial dose is 150 mg administered as an intravenous infusion over four hours on Day 1.
  • The second dose is 450 mg administered as an intravenous infusion over one hour on Day 15.
  • Subsequent maintenance doses of 450 mg are given every 24 weeks starting six months after the first infusion, administered over one hour.

How Ublituximab-xiiy Is Administered

  • Administration occurs exclusively in a clinical setting under the supervision of qualified healthcare personnel equipped to manage severe allergic reactions.
  • Patients receive pre-medication with a corticosteroid, an antihistamine, and an antipyretic 30 to 60 minutes prior to each infusion.
  • Patients are observed for at least one hour after completing the first two infusions, and monitored throughout subsequent maintenance infusions.

Ublituximab-xiiy Clinical Efficacy & Research

Clinical trials demonstrate that Ublituximab-xiiy significantly lowers annualized relapse rates compared to active comparator therapies in patients with relapsing multiple sclerosis. Established medical consensus confirms that targeted B-cell depletion markedly decreases gadolinium-enhancing T1 lesions and new or enlarging T2 lesions on brain imaging. Research highlights that its engineered glyco-structure allows for rapid intravenous infusions while maintaining sustained disease suppression over long-term treatment intervals.

Ublituximab-xiiy Side Effects & Safety Profile

BLACK BOX WARNING

This medication does not currently carry a Black Box Warning from the FDA. However, as with all potent prescription medications, it is essential to remain aware of the potential risks associated with its use. Strict adherence to prescribing guidelines and routine medical monitoring is still highly recommended.

Ublituximab-xiiy therapy requires active clinical oversight to recognize infusion-related reactions, lower infection risks, and monitor serum immunoglobulin levels.

Ublituximab-xiiy Common Side Effects

  • Infusion-related reactions, including fever, chills, headache, tachycardia, rash, and nausea.
  • Upper respiratory tract infections, such as the common cold, sinus infections, and sore throat.
  • Lower respiratory tract infections, herpesvirus-related skin infections, and fatigue.

Serious Ublituximab-xiiy Adverse Events

  • Severe or life-threatening infusion reactions causing anaphylaxis, bronchospasm, or severe hypotension.
  • Serious bacterial, viral, or fungal infections resulting from prolonged B-cell depletion and hypogammaglobulinemia.
  • Hepatitis B virus reactivation leading to fulminant hepatitis, hepatic failure, or death.

Managing Ublituximab-xiiy Side Effects

If an infusion reaction occurs, the infusion rate is slowed or temporarily stopped until symptoms subside, and symptomatic medical care is provided. Report any signs of fever, persistent cough, skin sores, or severe throat pain to your healthcare provider immediately.

Ublituximab-xiiy Interactions & What to Avoid

Ublituximab-xiiy alters immune system activity, creating critical considerations regarding live vaccines and concurrent immunosuppressive agents.

Ublituximab-xiiy Interactions

  • Administration of live or live-attenuated vaccines during therapy or prior to B-cell recovery is not recommended due to reduced vaccine efficacy and infection risks.
  • Concomitant use with other strong immunosuppressive or immunomodulatory drugs increases the risk of cumulative immune system suppression.
  • Non-live vaccines should be administered at least two weeks prior to starting treatment to ensure an adequate immune response.

Ublituximab-xiiy Food & Alcohol

  • Food and beverage intake do not alter the absorption or clinical effect of Ublituximab-xiiy because it is given intravenously.
  • Alcohol should be consumed in moderation, as excessive use can complicate medical evaluation of liver function or general wellness.

Ublituximab-xiiy Missed Dose, Overdose & Storage

Strict scheduling of maintenance infusions helps preserve therapeutic drug levels and prevents disease relapses.

Missed Dose of Ublituximab-xiiy

If a scheduled infusion is missed, contact your neurologist immediately to reschedule the dose as soon as possible and adjust subsequent infusion timing.

Ublituximab-xiiy Overdose & Emergency

Accidental overdose during intravenous infusion requires immediate cessation of the infusion and supportive clinical monitoring for adverse immune or cardiovascular reactions.

How to Store Ublituximab-xiiy

Store intact vials under refrigeration between 2°C and 8°C (36°F to 46°F) in the original carton to protect from light, and do not freeze or shake.

Ublituximab-xiiy Patient Management & Monitoring

Comprehensive patient care includes baseline serological testing, routine blood monitoring, and vigilance for neurological changes.

Tests Before Starting Ublituximab-xiiy

  • Hepatitis B virus screening, including HBsAg and anti-HBc testing, for all patients before starting therapy.
  • Baseline serum immunoglobulin levels, specifically IgM and IgG, to evaluate immune status.

Monitoring During Ublituximab-xiiy Treatment

  • Regular monitoring of serum immunoglobulin levels throughout therapy and following drug discontinuation.
  • Clinical evaluation for new or worsening neurological symptoms that could suggest progressive multifocal leukoencephalopathy or MS relapse.

Ublituximab-xiiy Do’s and Don’ts

  • Do take prescribed pre-medications prior to each infusion session to prevent infusion reactions.
  • Do inform your care team right away if you develop signs of an infection, such as fever or chills.
  • Do not receive live virus vaccines while undergoing treatment or without consulting your neurologist.
  • Do not stop or delay your maintenance infusions without discussing your treatment plan with your doctor.

Frequently Asked Questions

What is Ublituximab-xiiy used for?

It is an intravenous monoclonal antibody used to treat relapsing forms of multiple sclerosis in adults.

How is Ublituximab-xiiy administered?

It is given as an intravenous infusion by a healthcare provider, starting with two initial doses two weeks apart, followed by maintenance infusions every 24 weeks.

How long does a maintenance infusion of Ublituximab-xiiy take?

After the initial four-hour first infusion, maintenance infusions are designed to be completed in approximately one hour.

Why are pre-medications given before the infusion?

Pre-medications help reduce the risk and severity of infusion-related reactions such as fever, rash, chills, and headache.

Can I get vaccinated while receiving Ublituximab-xiiy?

Live vaccines are not recommended during treatment, and non-live vaccines should ideally be given at least two weeks before starting therapy.

What should I do if I get a fever or cough after treatment?

Contact your healthcare provider right away, as these could be signs of an infection that needs medical evaluation.

Do I need blood tests before starting Ublituximab-xiiy?

Yes, doctors require hepatitis B screening and baseline immunoglobulin levels before initiating treatment.

References

  • U.S. FDA – Ublituximab-xiiy prescribing information
  • U.S. FDA Drugs@FDA – Ublituximab-xiiy approval history
  • National Cancer Institute (NCI) – Neurology Treatment Protocols.

The information provided is for educational and informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider at any hospital or any local clinic before starting or stopping any medication.