[Elimination of inhibitors in children with hemophilia A].

In five hemophilic children an attempt was made to eradicate inhibitors by continuous treatment with low doses of cryoprecipitate. All patients were high responders with maximum titers of 25 and 600 U. In four patients the anamnestic response was prevented or diminished by simultaneous treatment with cyclophosphamide. In these patients the inhibitor did not return during the continuous replacement therapy, even not after cessation of cyclophosphamide administration and in three of them not after intensive substitution. In the other child the titer decreased continuously in the beginning, but only to values unsuitable for replacement effects. Attempts to exterminate the inhibitor should be occasionally made by continuous low dose substitution therapy. The importance of the combination with cyclophosphamide cannot be decided until now because of the small number of observations.