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Other Names for Hemophilia

Hemophilia A

  • Classic hemophilia
  • Factor VIII deficiency

Hemophilia B

  • Christmas disease
  • Factor IX deficiency
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Hemophilia Clinical Trials

Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans. To find clinical trials that are currently underway for Hemophilia, visit

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July 31, 2013 Last Updated Icon

The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.