VLX-1005 is being developed as a treatment for heparin induced thrombocytopenia (HIT), a rare but life threatening illness. Currently, the anticoagulant argatroban remains the standard of care for treating HIT. However, this treatment remains inadequate due to both thrombosis and major bleeding complications that each may exceed 30% of treated HIT patients. These findings are significant to the later stage clinical development of VLX-1005 as a trial of VLX-1005 on top of argatroban therapy would require an understanding of any potential drug-drug interactions- whether direct or via metabolism. Specifically, coadministration of VLX-1005 with argatroban mandates an analysis of the potential effects on PK, pharmacodynamics and bleeding. The current study is designed to address these important questions.
The study is designed to characterize the safety and tolerability of VLX-1005 and argatroban administered intravenously, either alone or in combination; and the pharmacokinetics and pharmacodynamics and potential interaction of both agents in a population of healthy subjects.