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- W2021895731 abstract "Introduction RO-14 is a novel ultra low molecular heparin. The purpose of this study was to evaluate the safety and pharmacodynamic profile of RO-14 in healthy males. Materials and methods We conducted a two-stage, single-center, open-label, randomized study. Two cohorts of 6 volunteers were randomly assigned to 12 single, ascending subcutaneous doses (1750-19950 IU of anti-FXa activity) in an alternating crossover fashion. Safety was assessed by spontaneous/elicited adverse events, medical examination and laboratory tests. Anti-FXa activity and anti-FIIa activity were assessed throughout the 24 hours after dosing. Dose proportionality and linearity of the anti-FXa activity were evaluated. Results All doses were well tolerated and there were no bleeding events. At the lowest dose, anti-FXa activity Amax was 0.16 (±0.02) IU/mL and AUC0-24 was 1.11 (±0.24) IU*h/mL, At the highest dose anti-FXa activity Amax was 1.67 (±0.15) IU/mL; AUC0-24 was 21.48 (±4.46) IU*h/mL and t½ was 8.05 h. Mean Tmax (all doses) was 2.86 (±0.39) h. RO-14 showed proportional and linear pharmacodynamics [normalized Amax among doses (p=0.594) and normalized AUC0-24 (p=0.092), correlations between Amax-dose (R2=0.89, p<0.001) and AUC0-24-dose (R2=0.86, p<0.001)]. Anti-FIIa activity was below the detection limit (0.1 IU/ml) at all dose levels. No clinically significant changes were observed in the platelet count, APTT, PT, TT, fibrinogen and antithrombin. Conclusions In this phase I study, RO-14 exhibited a good safety profile, anti-FXa activity for either prophylaxis or treatment of venous thromboembolism, linear pharmacodynamics, a longer elimination half-life than currently marketed low molecular weight heparin and no anti-FIIa activity." @default.
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- W2021895731 date "2011-04-01" @default.
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- W2021895731 title "Safety Assessment and Pharmacodynamics of a Novel Ultra Low Molecular Weight Heparin (RO-14) in Healthy Volunteers – A First-Time-In-Human Single Ascending Dose Study" @default.
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- W2021895731 doi "https://doi.org/10.1016/j.thromres.2010.12.009" @default.
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