Xilio Therapeutics Announces Initiation of Enrollment for Phase 1 Combination Trial of XTX101, a Tumor-Activated, Fc-Enhanced Anti-CTLA-4, and Updated Phase 1 Monotherapy Data
WALTHAM, Mass., Dec. 07, 2023 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced the initiation of enrollment for its Phase 1 clinical trial of XTX101, an investigational tumor-activated, Fc-enhanced anti-CTLA-4, in combination with atezolizumab and reported updated monotherapy data from its ongoing Phase 1 clinical trial evaluating XTX101 in late-line patients with advanced and immuno-oncology (IO) refractory solid tumors. The data were presented at the European Society for Medical Oncology (ESMO) Immuno-Oncology Congress on December 7, 2023.
- The data were presented at the European Society for Medical Oncology (ESMO) Immuno-Oncology Congress on December 7, 2023.
- XTX101 monotherapy was generally well-tolerated with treatment-related adverse events (TRAE) primarily Grade 1 or 2, and no patients discontinued treatment due to a TRAE.
- In addition, as previously reported, no Grade 4 or 5 TRAEs were reported by investigators across all dosing levels and dosing intervals.
- Xilio recently completed enrolling patients at the RP2D of 150 mg Q6W in monotherapy dose expansion and initiated enrollment in Phase 1 combination dose escalation to evaluate the safety, tolerability and efficacy of XTX101 in combination with atezolizumab.