TG Therapeutics Announces Publication of Five-Year Comparative Analysis of BRIUMVI Versus Ocrelizumab and Ofatumumab in Relapsing Multiple Sclerosis
TG Therapeutics, Inc. announced the publication of results from a five-year matching-adjusted indirect comparison (MAIC) evaluating long-term relapse activity and disability progression outcomes with BRIUMVI® (ublituximab-xiiy) compared with ocrelizumab and ofatumumab in patients with relapsing multiple sclerosis (RMS).
For the analysis, individual patient data from the Phase 3 ULTIMATE I/II pivotal trials for BRIUMVI were reweighted to match published baseline characteristics from the pivotal studies for ocrelizumab and ofatumumab in patients with RMS, revealing favorable long-term outcomes with BRIUMVI compared to the other two comparators. The manuscript, entitled “Long-Term Comparative Outcomes in Relapse Activity and Disability Progression Among Anti-CD20 Therapies in Relapsing Multiple Sclerosis: An Unanchored Matching-Adjusted Indirect Comparison,” was published online in Multiple Sclerosis and Related Disorders.
Michael S. Weiss, Chairman and Chief Executive Officer of TG Therapeutics, stated, “In an era where physicians and patients are fortunate to have multiple anti-CD20 treatment options available for relapsing MS, the lack of comparative data makes choosing the right one challenging. This is particularly important for people living with a chronic disease like MS, where preventing the accumulation of disability over time is an important treatment goal.”
Mr. Weiss continued, “In the absence of head-to-head clinical trials, MAIC provides a valuable statistical approach to evaluating comparative treatment outcomes while accounting for differences in patient populations across studies. We are encouraged that this analysis showed that BRIUMVI was associated with consistently lower relapse activity versus ocrelizumab and a lower risk of confirmed disability progression compared with both ocrelizumab and ofatumumab over five years. We believe these findings add to the growing body of evidence supporting the durable efficacy profile of BRIUMVI and its potential to provide meaningful long-term benefit for people living with MS.
About the MAIC Analysis
In the absence of randomized head-to-head trials directly comparing anti-CD20 therapies in RMS, investigators conducted an unanchored MAIC to explore comparative outcomes over five years. Individual patient data from the pivotal Phase 3 ULTIMATE I and II studies were reweighted to match published baseline characteristics from the pivotal Phase 3 studies for ocrelizumab (OPERA I/II) and ofatumumab (ASCLEPIOS I/II), including age, sex, baseline Expanded Disability Status Scale (EDSS) score, gadolinium-enhancing lesion prevalence, T2 lesion volume, prior relapse activity and time since diagnosis, where corresponding data were available. Following weighting, baseline characteristics were closely aligned with both comparator populations.
ABOUT THE ULTIMATE I & II PHASE 3 TRIALS
ULTIMATE I & II are two randomized, double-blind, double-dummy, parallel group, active comparator-controlled clinical trials of identical design, in patients with RMS treated for 96 weeks. Patients were randomized to receive either BRIUMVI, given as an IV infusion of 150 mg administered in four hours, 450 mg two weeks after the first infusion administered in one hour, and 450 mg every 24 weeks administered in one hour, with oral placebo administered daily;
or teriflunomide, the active comparator, given orally as a 14 mg daily dose with IV placebo administered on the same schedule as BRIUMVI. Both studies enrolled patients who had experienced at least one relapse in the previous year, two relapses in the previous two years, or had the presence of a T1 gadolinium (Gd)-enhancing lesion in the previous year. Patients were also required to have an Expanded Disability Status Scale (EDSS) score from 0 to 5.5 at baseline.
ABOUT TG THERAPEUTICS
TG Therapeutics is a fully integrated, commercial stage, biotechnology company focused on the acquisition, development and commercialization of novel treatments for B-cell diseases. In addition to a research pipeline, TG Therapeutics has received approval from the U.S. Food and Drug Administration (FDA) for BRIUMVI® (ublituximab-xiiy) to treat adult patients with relapsing forms of multiple sclerosis, including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, as well as approval from several regulatory agencies outside of the U.S. for BRIUMVI to treat adult patients with RMS who have active disease defined by clinical or imaging features.
ABOUT BRIUMVI® (ublituximab-xiiy) 150 mg/6 mL Injection for IV
BRIUMVI is a novel monoclonal antibody that targets a unique epitope on CD20-expressing B-cells. Targeting CD20 using monoclonal antibodies has proven to be an important therapeutic approach for the management of autoimmune disorders, such as RMS. BRIUMVI is uniquely designed to lack certain sugar molecules normally expressed on the antibody. Removal of these sugar molecules, a process called glycoengineering, allows for efficient B-cell depletion at low doses.
