Rationale and Design of an Observational Multicenter Study to Evaluate the Use and Effectiveness of Avatrombopag in Adult Patients with Immune Thrombocytopenia: The Adopt Study

McDonald: Grifols: Research Funding; Bayer, Sobi, Novartis, Amgen, argenx: Honoraria. Matzdorff: Grifols: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Amgen: Consultancy, Honoraria; Argenx: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; UCB: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; Roche: Current holder of individual stocks in a privately-held company. Mellbring: Sobi: Current Employment. Nazir: Sobi: Current Employment. Lindqvist: Sobi: Current Employment. Santagostino: Sobi: Current Employment.