Tracy George, MD, ARUP Laboratories, University of Utah, Salt Lake City, UT comments on the movement from broad, cladribine-based regimens to novel, targeted tyrosine kinase inhibitors (TKIs) such as avapritinib, for the treatment of systemic mastocytosis. Dr George also comments on the future development of antibody-based therapies, emphasizing the importance of more selective agents with fewer side effects. This interview took place at the European Hematology Association (EHA) Congress 2022 held in Vienna, Austria.