Nicht-glykosylierte Plasminogenaktivator-Derivate und ihre Verwendung bei erhöhtem Blutungsrisiko

摘要

The invention concerns a non-glycosylated tissue plasminogen activator derivative which contains the essential parts of at least one Kringle domain and a B-chain with serine protease activity of the tissue plasminogen activator and which is characterized in that each of the amino-acids 296 to 299 (Lys-His-Arg-Arg) is replaced by alanine. Owing to the low risk of bleeding associated with its use, this derivative is particularly suitable for use in the treatment of subchronic thromboembolic disorders.