–Data presented at the American College of Cardiology Annual Scientific Session show that the reduction of bleeding with abelacimab compared to rivaroxaban (Xarelto) was even greater in patients ≥75 years old compared to younger patients –Another analysis from AZALEA-TIMI 71 shows abelacimab, as compared to rivaroxaban (Xarelto), was associated with a greater absolute benefit in patients who are at higher risk for bleeding CAMBRIDGE, Mass., March 29, 2025 (GLOBE NEWSWIRE) — Anthos Therapeutics, Inc., a transformative, clinical-stage biopharmaceutical company developing innovative therapies for the treatment of cardiovascular metabolic diseases, is presenting two new analyses from its landmark AZALEA-TIMI 71 study at the American College of Cardiology Annual Scientific Session (ACC.25) demonstrating the novel Factor XI inhibitor abelacimab significantly reduced bleeding in patients regardless of age or bleeding risk. These data will be presented today during the moderated poster sessions from 2:30-4:30pm CT. In the first analysis, the safety of abelacimab, a novel Factor XI inhibitor, was compared to rivaroxaban, a direct oral anticoagulant (DOAC), by patient age. Inhibition of Factor XI with abelacimab significantly reduced the relative risk of major or clinically relevant non-major (CRNM) bleeding compared with rivaroxaban regardless of age, with potential for greater absolute risk reduction (ARR) with older patients. The ARR in patients 75 years of age and older was 6.2% compared to 4.2% in patients less than 75 years. In addition, abelacimab consistently reduced bleeding risk in patients 75 years of age and older regardless of renal function, body mass index (BMI), and the use of concomitant antiplatelet therapy. “Patients with atrial fibrillation, particularly older patients, are frequently at a high risk of bleeding. There is a need for safer anticoagulants that can prevent thrombotic events while minimizing excess bleeding,” said Christian T. Ruff, MD, MPH, senior investigator of TIMI Group, director General Cardiology, Brigham and Women’s Hospital, and associate professor, Harvard Medical School. “These data show that abelacimab significantly reduced the risk of major or CRNM bleeding, particularly among people over 75 who are vulnerable to such risks, and, if approved, could be a safer alternative for patients needing anticoagulation therapy.” In the second analysis, the safety of abelacimab was compared to rivaroxaban across a spectrum of bleeding risk, which was determined by using the direct oral anticoagulant (DOAC) score, a clinical tool leveraged to assess the risk of bleeding in patients who are prescribed DOACs. In patients with atrial fibrillation, abelacimab reduced rates of bleeding relative to rivaroxaban regardless of bleeding risk, with greater absolute safety benefit in those at higher bleeding risk. In the rivaroxaban arm, the rates of major or CRNM bleeding per 100 patient years increased stepwise across risk categories from 5.6% in the low risk category to 21.2% in the very high risk category. In contrast, the rates of bleeding in patients in the pooled abelacimab arm were 2.5% in the low-risk category to 7.1% in the very high-risk category. The ARR increased from 3.1% in the low risk category to 14.1% in the very high risk category (p-trend for ARR