NCT02554526

Basic Study of Combination Therapy Based on APCC-induced FVllI Activation in Hemophilia A Patients With Inhibitors

Basic Study on Novel Therapeutic Strategy With Bypassing Agent Therapy in Hemophilia A Patients With Inhibitors

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 10 (estimated)
• Sponsor: Nara Medical University · Academic / Other
• Sex: Male
• Age: —
• Healthy volunteers: Not accepted

Summary

Using whole blood samples and plasma samples obtained from some hemophilia A patients with inhibitors, the investigators will perform the coagulation assessment in the co-presence of aPCC and factor VIII by comprehensive coagulation assays and flow chamber analysis under blood flow conditions.

Detailed description

Comprehensive coagulation assays using recently popular rotational thromboelastometry (ROTEM), factor Xa/thrombin/plasmin generation test, and coagulation wave analysis and recently developed flow chamber system under blood flow conditions (T-TAS®) will be used. A bypassing agent, aPCC (Feiba®) and recombinant factor VIII (Advate®) will be added ex vivo to whole blood and plasma samples from patients with hemophilia A with inhibitors to compare with the coagulation effects of aPCC in the presence of factor VIII and those of aPCC in its absence under the conditions close to the physiological condition. Furthermore, the difference in the coagulation effects by the difference in inhibitor epitopes will be examined.

Conditions

• Hemophilia A With Inhibitor

Timeline

• Start date: 2015-09-01
• Primary completion: 2017-03-01
• Completion: 2017-12-01
• First posted: 2015-09-18
• Last updated: 2015-09-18

Locations

1 site across 1 country: Japan