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New Stroke Drug Offers Hope Without Bleeding Risk
27 Apr
Summary
- Asundexian reduced recurrent stroke risk by 26% in a major trial.
- The new drug targets clotting factor XIa, sparing normal bleeding control.
- OCEANIC-STROKE trial included over 12,300 participants globally.

A significant breakthrough in stroke prevention may be on the horizon with the investigational drug asundexian. New findings from the OCEANIC-STROKE Phase 3 trial reveal that this novel oral anticoagulant reduced the risk of a second stroke by 26% in individuals who had recently experienced a clot-related stroke or TIA. Crucially, this benefit was achieved without an associated increase in bleeding complications.
The international trial, which enrolled over 12,300 participants from 37 countries, focused on patients at high risk of recurrent stroke. Asundexian works by selectively inhibiting clotting factor XIa, a protein believed to be more critical for pathological clot formation than for normal hemostasis. This targeted mechanism differentiates it from existing anticoagulants that can impair the body's ability to stop bleeding.