Business Wire

Xencor to Host Webcast to Discuss Results From the Phase 1 Study of XmAb819 in Advanced Clear Cell Renal Cell Carcinoma

Business Wire

PASADENA, Calif., October 19, 2026--Xencor, Inc. (NASDAQ:XNCR), a clinical-stage biopharmaceutical company developing engineered antibodies for the treatment of cancer and autoimmune diseases, will host a webcast on Monday, October 26 at 7:00 a.m. EDT (4:00 a.m. PDT) to discuss results from the Phase 1 Study of XmAb819, an ENPP3 x CD3 T-cell engaging bispecific antibody, in development for patients with advanced clear cell renal cell carcinoma (ccRCC).

The live webcast of the conference call may be accessed through this link and through "Events & Presentations" in the Investors section of the Company's website, located at investors.xencor.com. A recording will be available for at least 30 days.

ESMO Presentation to Highlight Results for Intravenous Doses Evaluated for Recommended Phase 3 Dose Selection in ccRCC

Results from the Phase 1 study of XmAb819 in advanced clear cell renal cell carcinoma (ccRCC) will be presented during an oral presentation at the European Society for Medical Oncology (ESMO) Congress 2026 being held in Madrid, Spain. Details of the presentation:

  • Title: Phase 1 results of XmAb819, a novel ENPP3 x CD3 bispecific, in advanced clear cell renal cell carcinoma (ccRCC)

  • Session: Proffered paper 2: Genitourinary tumours, renal and urothelial

  • Session Date/Time: Sunday, October 25, 2026, 8:30 a.m. – 10:00 a.m. CET

  • Session Location: IFEMA Madrid, Almeria Auditorium – Hall 9

  • Presenter: Sumanta Pal, M.D., FASCO, Professor and Vice Chair of Academic Affairs, City of Hope Comprehensive Cancer Center

XmAb819 Evaluation Across Advanced ccRCC and ENPP3+ Tumors

XmAb819 is being evaluated for the treatment of patients with advanced ccRCC and ENPP3+ tumors in a Phase 1 clinical study (Clinicaltrials.gov Identifier: NCT05433142). Xencor is planning to initiate a registration-enabling study of XmAb819 monotherapy in advanced ccRCC in 2027. Currently:

  • Expansion cohorts are evaluating intravenous doses to support selection of a dose for the planned Phase 3 pivotal study for patients with advanced ccRCC,

  • Dose escalation of subcutaneous administration in advanced ccRCC is ongoing,

  • A sub-study for patients with ENPP3+ advanced colorectal cancer, non-small cell lung cancer and papillary renal cell carcinoma opened to enrollment in the second quarter of 2026, and

  • A sub-study for patients with intermediate- or poor-risk advanced ccRCC who have progressed after nivolumab in combination with ipilimumab as a first-line treatment (IO doublet therapy) opened to enrollment in the third quarter of 2026.