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TG Therapeutics Announces Positive Results from Phase 1 Trial Evaluating Subcutaneous BRIUMVI® (ublituximab-xiiy)

$TGTXPress releaseJun 3, 2026, 7:30 AM ETRead the release

TG Therapeutics reported positive Phase 1 results for its subcutaneous formulation of BRIUMVI, showing >60% bioavailability relative to the IV version and no new safety signals. Pharmacokinetic modeling indicates that both quarterly and every-other-month subcutaneous dosing regimens will likely meet the non-inferiority primary endpoint in the ongoing Phase 3 trial.

Key figures

Drug Name
BRIUMVI (ublituximab-xiiy)
Phase Of Trial
Phase 1
Patients treated
>100
Gmr quarterly dosing
1.21
Bioavailability vs iv
>60%
Injection site reactions
<5%
Gmr every other month dosing
1.58
Systemic injection reactions
~21%
Subcutaneous injections administered
>225

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