• Dtsch Arztebl Int · Nov 2019

    Review

    Treatment Options in Hemophilia.

    • Wolfgang Miesbach, Joachim Schwäble, Markus M Müller, and Erhard Seifried.
    • Department of Hemostaseology and Transfusion Medicine, University Hospital Frankfurt am Main; DRK-Blutspendedienst Baden-Württemberg-Hessen gGmbH, Department of Transfusion Medicine and Immunohematology, University Hospital Frankfurt am Main.
    • Dtsch Arztebl Int. 2019 Nov 22; 116 (47): 791-798.

    BackgroundApproximately 4550 persons were under treatment for hemophilia in Germany in 2017. The condition is currently treated with intravenous supplementa- tion of the missing clotting factor, either prophylactically or as needed. Newer treat- ment options rely on novel mechanisms of action.MethodsThis review is based on pertinent publications retrieved by a selective search in MEDLINE/PubMed, as well as on expert opinions and the recommenda- tions of specialty societies.ResultsRandomized controlled trials have shown that, in children aged 30 months to 6 years, prophylactic clotting-factor supplementation yields a markedly lower an- nual rate of hemorrhage than supplementation as needed: 3.27 (standard deviation [SD] 6.24) for the former vs. 17.69 (SD 9.25) for the latter. A similar large effect was seen in patients aged 12 to 50 years, with hemorrhage rates of 1.9 (SD 4.1) vs. 28.7 (SD 18.8). Clotting-factor preparations with longer half-lives make it possible to lessen the frequency of administration and to prevent subtherapeutic factor levels. A number of alternatives to clotting-factor supplementation have recently been approved or are currently being clinically tested. These new drugs are injected sub- cutaneously and have a longer half-life, possibly enabling better protection against bleeding than the current standard treatment. A further advantage of some of these drugs is that they can be given even in the presence of inhibitors to factor VIII. In addition, initial (phase I) clinical trials of gene therapy have been performed suc- cessfully for both hemophilia A and hemophilia B.ConclusionNow that new alternatives to classic supplementation therapy are be- coming available, pertinent treatment algorithms for patients with hemophilia will have to be developed. It is still unclear to what extent the new drugs might supplant clotting factor supplementation as the first line of treatment.

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