Living with

Hemophilia A?

The Alta Study is testing a potential
one-time lasting treatment

Find a Study Doctor


If you think you may qualify for the ALTA study, click on the link below to see the doctors near you participating in the study.





doctor testing

You may qualify for the ALTA clinical research study if you:

  • Are a male age 18 or older
  • Have severe hemophilia A and are currently free of inhibitor
  • Have had factor VIII replacement therapy for at least 150 days

People who qualify will receive:

  • Investigational gene therapy (SB-525) for severe hemophilia A
  • Study-related medical care

Think the ALTA study may be for you? Contact us.