Having hemophilia and other bleeding disorders can mean coping with various complications that can arise throughout the patient’s lifetime. For some patients, the immune system produces antibodies that “inhibit” clot formation. The presence of an inhibitor makes treating bleeds more difficult.

The National Hemophilia Foundation offers several resources for families affected by inhibitors. These resources include educational events that provide meaningful community support; downloadable/printable publications and brochures; informative webinars to watch on-demand; live in-person workshops hosted by our chapter network; and referrals to websites that provide more detailed information for patients and families.


Inhibitor Education Series

When you live with an inhibitor, you and your family have questions and concerns that deserve special attention. NHF’s Education Series will provide just that – quality education and meaningful community support.

If you are a person with hemophilia A or B with an active or tolerized inhibitor, or support a person with one, or if you would like to learn more about this topic, register for the Inhibitor Education Series. The Inhibitor Education Series is offered at no cost to participants and is open to individuals and families from all around the world. Below is a list of upcoming and/or recently past inhibitor events. They are offered in both English and Spanish.

View All NHF Events


Inhibitor Webinars

NHF's online education provides free quality education on issues that matter to all members of the bleeding disorders community, from parents of young children to adults with inhibitors. These webinars and webcasts bring the experience of expert providers and your peers directly to you. Watch the most recent inhibitor webinars listed below, or browse the complete listing.

All Webinars on Inhibitors

Wednesday Webinar Series

NHF's Wednesday Webinars are a free education series open to providers and community members. Watch the recent webinars, browse the full listing, or register to attend upcoming Wednesday Webinars, and learn about the latest in research, breakthrough developments, and more.

All Wednesday Webinars on Inhibitors


Genentech HEMA Biologics Sanofi Genzyme Takeda