Xencor Presents Clinical Results from Phase 1a Study of XmAb®564 at the EULAR 2023 Congress

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May 30, 2023

Xencor, Inc. (NASDAQ:XNCR), a clinical-stage biopharmaceutical company developing engineered antibodies and cytokines for the treatment of patients with cancer and autoimmune diseases, today announced the presentation of results from its Phase 1a single-ascending dose study of XmAb®564 in healthy volunteers. XmAb564 is a potency-tuned IL-2-Fc fusion protein, engineered to selectively activate and expand regulatory T cells (Tregs) for the potential treatment of patients with autoimmune diseases. Results will be presented in a poster titled “XmAb564, a Novel Potency-Tuned IL-2 Fc-Fusion Protein Selectively Expands Regulatory T Cells: Results from a Single Ascending-Dose Study in Healthy Adult Volunteers” at the European Congress of Rheumatology (EULAR) being held May 31 to June 3 in Milan, Italy.