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SR-A + Epratuzumab

Charite University, Berlin, Germany · Phase 3 active Small molecule

SR-A combined with epratuzumab targets CD19-positive B cells to deplete autoreactive B cells in systemic lupus erythematosus.

SR-A combined with epratuzumab targets CD19-positive B cells to deplete autoreactive B cells in systemic lupus erythematosus. Used for Systemic lupus erythematosus (SLE).

At a glance

Generic nameSR-A + Epratuzumab
Also known asEpratuzumab
SponsorCharite University, Berlin, Germany
Drug classBTK inhibitor + monoclonal antibody combination
TargetBTK and CD19
ModalitySmall molecule
Therapeutic areaImmunology
PhasePhase 3

Mechanism of action

SR-A is a selective Bruton's tyrosine kinase (BTK) inhibitor that suppresses B cell activation and survival, while epratuzumab is a monoclonal antibody targeting CD19 on B cell surfaces. Together, they work synergistically to reduce pathogenic B cell populations and autoimmune responses in lupus patients.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results