Biopharma Transcript

Xilio Therapeutics, Inc. XLO

Nasdaq · Phase 2 · oncology · protein/peptide · EDGAR · Updated Oct 24, 2026

Xilio Therapeutics, Inc. (Nasdaq: XLO) is an oncology drug developer. Its lead program, efarindodekin alfa (masked IL-12), is in Phase 2 for advanced solid tumors. Its next catalyst on record is XTX501: initiate dosing Phase 1/2 (H2 2026).

Upcoming catalysts

No catalyst is dated to the next 30 days or to an FDA action date.

Next further out: XTX501 — initiate dosing Phase 1/2 (H2 2026). 3 catalysts on record beyond the next 30 days; subscribers see each with its filing sentence.

Pipeline

ProgramIndicationModalityStage
efarindodekin alfaadvanced solid tumors (Phase 2, Gilead license)protein/peptidePhase 2
vilastobart (XTX101)solid tumors with atezolizumabantibodyPhase 1
XTX501NSCLC/solid tumors (PD-1/masked IL-2)antibodyPhase 1
masked TCEssolid tumorsbiologic-otherPre-clinical

For subscribers

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