Kinase experiment:

NQO2 (0.5 μM) is incubated with the substrate mitomycin C (50 μM) and four different Dabigatran concentrations in 100 mM potassium phosphate buffer (pH 5.8) at room temperature for 5 min prior to the addition of NADH (in increasing concentrations) as a cosubstrate and photometric monitoring at 340 nm for 30 min at rt. Ki values are determined. Data generated are used to calculate the IC50 of inhibition of NQO2 activity[1].

Dabigatran ethyl ester is an emerging oral anticoagulant which is a direct inhibitor of thrombin activity. IC50 value:Target: thrombinDabigatran provides a stable anticoagulation effect without any need to perform periodical laboratory controls. Of note, there is a growing amount of clinical evidence which shows its safety and efficacy. For these reasons, Dabigatran may suppose a revolution in oral anticoagulation. Dabigatran etexilate was rapidly converted to Dabigatran, with peak plasma dabigatran concentrations being attained after approximately 1.5 h; the bioavailability of Dabigatran after p.o. administration of Dabigatran etexilate was 7.2%.

References:
[1]. Simon Michaelis, Anett Marais, Anna K. Schrey, et al. Dabigatran and Dabigatran Ethyl Ester: Potent Inhibitors of Ribosyldihydronicotinamide Dehydrogenase (NQO2). J. Med. Chem., 2012, 55 (8):3934-3944
[2]. Preetpal Singh Sidhu,Aiye Liang, Akul Y. Mehta,et al. Rational Design of Potent, Small, Synthetic Allosteric Inhibitors of Thrombin. J Med Chem. 2011; 54(15): 5522-5531.
[3]. Santiago Redondo, Maria-Paz Martínez, Marta Ramajo, et al. Pharmacological basis and clinical evidence of dabigatran therapy. J Hematol Oncol. 2011; 4: 53.
[4]. Stefan Blech, Thomas Ebner, Eva Ludwig-Schwellinger,et al. The Metabolism and Disposition of the Oral Direct Thrombin Inhibitor, Dabigatran, in Humans. DMD ,2008 , 36 (2) 386-399
[5]. Dabigatran