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- W4280497598 abstract "Acute bleeding leads to significant morbidity and mortality. Recombinant wildtype Factor VIIa (WT FVIIa) had been reported to have some therapeutic effects in some clinical trials, however, its use was associated with thromboembolic events. We sought to develop a novel FVIIa molecule (CT-001) with enhanced activity and lowered thrombogenicity risk.CT-001 has 4 N-glycans (T106N/N145/V253N/N322) with terminal sialic acid residues removed to promote active clearance via the asialoglycoprotein receptor, and P10Q/K32E substitutions introduced to its gamma-carboxyglutamic acid (Gla) domain for enhanced phospholipid affinity and activity.In mice, CT-001 had a half-life of 5 min and a clearance of 467 mL/h/kg at 3 mg/kg, significantly faster than WT FVIIa (t1/2 = 1.8 h, Cl = 39 mL/h/kg). Interestingly, CT-001 was efficacious in reducing blood loss even with its rapid clearance. In a severe hemorrhage mouse model with tail amputated 5 cm from the tip, 1 mg/kg CT-001 provided efficacy comparable to 3 mg/kg WT FVIIa. The fast clearance of CT-001 resulted in significantly reduced thrombogenicity in comparison to WT FVIIa in a FeCl3-induced carotid artery thrombosis mouse model, and further confirmed in a soluble tissue factor-induced thrombosis model.The data on CT-001 demonstrate that a short duration of highly active FVIIa procoagulant activity has the potential to be an optimal paradigm for the treatment of acute bleeds." @default.
- W4280497598 created "2022-05-22" @default.
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- W4280497598 date "2022-07-01" @default.
- W4280497598 modified "2023-09-23" @default.
- W4280497598 title "CT-001 is a rapid clearing factor VIIa with enhanced clearance and hemostatic activity for the treatment of acute bleeding in non-hemophilia settings" @default.
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- W4280497598 doi "https://doi.org/10.1016/j.thromres.2022.05.007" @default.
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