Immune Thrombocytopenic Purpura (ITP) research hub

A Study of Mezagitamab in Adults With Chronic Primary Immune Thrombocytopenia

This study is testing a new medicine, mezagitamab, for adults with a bleeding condition called ITP. We want to see if it helps keep platelet counts stable. It's given by injection under the skin.

A Follow-up Study of Mezagitamab in Adults With Chronic Primary Immune Thrombocytopenia

This study looks at how safe and effective a medicine called mezagitamab is for adults with a bleeding condition called ITP. If you’ve been in a previous mezagitamab study, you might be invited to join this longer follow-up.

A Study of Efgartigimod IV in Participants From 12 Years to Less Than 18 Years of Age With Chronic Immune Thrombocytopenia (ITP)