Autoplex versus proplex: a controlled, double-blind study of effectiveness in acute hemarthroses in hemophiliacs with inhibitors to factor VIII.

Abstract

In view of uncontrolled observations and anecdotal reports suggesting that the activated PCC, Autoplex, was much more effective than standard (non-activated) PCC in controlling bleeding in hemophiliacs with inhibitors, a controlled double-blind study was designed to compare the effectiveness of Autoplex and Proplex. Acute hemarthrosis was chosen for study as this common but non-life-threatening lesion lends itself well to controlled study. A single dose of "unknown" product (Autoplex 75 FECU/kg; Autoplex 50 FECU/kg; or Proplex 75 FIX U/kg) was given, and effectiveness was judged at 6 hr. By all criteria of efficacy, there were no significant differences between the products. It is noteworthy that a single dose of PCC was judged effective in 50% of episodes, a figure that is consistent with other published clinical trials. In this model, no additional benefit was derived from using the activated PCC, Autoplex, in either dosage.

• Authors: J M Lusher, P M Blatt, J A Penner, L M Aledort, P H Levine, G C White, A I Warrier, D A Whitehurst
• Journal: Blood (Blood) Vol. 62 Issue 5 Pg. 1135-8 (Nov 1983) ISSN: 0006-4971 [Print] United States
• PMID: 6414555 (Publication Type: Clinical Trial, Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Blood Coagulation Factors
• prothrombin complex concentrates
• Factor VIII
• Factor IX
• Factor IXa

Topics

• Blood Coagulation Factors (therapeutic use)
• Clinical Trials as Topic
• Double-Blind Method
• Factor IX (therapeutic use)
• Factor IXa
• Factor VIII (antagonists & inhibitors)
• Hemarthrosis (drug therapy)
• Humans