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M9460223.TXT
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1994-06-12
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Document 0223
DOCN M9460223
TI Immunopurified clotting factor concentrates.
DT 9408
AU Mariani G; Di Nucci GD; Arcieri P; Department of Human Biopathology,
University of Rome La Sapienza,; Italy.
SO Nouv Rev Fr Hematol. 1994;36 Suppl 1:S61-5. Unique Identifier : AIDSLINE
MED/94232796
AB Monoclonally purified factor concentrates have been available for
hemophilia treatment since the late 1980's. They are biochemically
characterized by a high-degree of clotting factor (FVIII or FIX)
purification and by the virtual lack of contaminants (immunoglobulins,
fibrinogen and fibronectin). The purification procedure sharply reduces
the viral load and increases the safety of the concentrate because of
the viral inactivation procedures. Viral safety is demonstrated by
prospective studies in previously untreated patients as well as by the
huge amount of concentrates produced and used so far without reports of
untoward side effects. Monoclonal concentrates are also safe in terms of
inhibitor production: they do not elicit the appearance of inhibitors to
either FVIII or FIX with increased frequency, as shown by data in
published prospective studies. Prospective studies have recently
demonstrated that the long-term administration of these high purity
concentrates does not exert any side effects on the immune system in
HIV-positive hemophiliacs. The FIX concentrate is also extremely safe in
terms of thrombotic complications: the highly pure FIX does not activate
blood coagulation. It has been shown that the monoclonally purified FIX
concentrate caused no thrombotic events in high-risk surgical patients
who had previously experienced such complications while on Prothrombin
Complex Concentrates.
DE Antibodies, Monoclonal Blood Coagulation Factors/ADVERSE
EFFECTS/*ISOLATION & PURIF/ THERAPEUTIC USE Hemophilia/THERAPY Human
JOURNAL ARTICLE REVIEW REVIEW, TUTORIAL
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).