Levis joined the Johns Hopkins faculty in 2002. He became full professor of Oncology in 2015. He served as the co-leader of the Hematologic Malignancies and Bone Marrow Transplantation Program at the Sidney Kimmel Comprehensive Cancer Center until 2025.
Research
His research focuses on targeted therapies for leukemia, with a focus on FLT3 (FMS‑like tyrosine kinase 3) as a therapeutic target in AML. .
Levis research also focuses on FLT3 inhibitors, including the clinical development of gilteritinib and quizartinib, both effective FLT3 inhibitors approved for treating FLT3‑mutated AML. He also developed assays to measure plasma inhibitory activity of these drugs and to evaluate their effectiveness as targeted therapies in patients.
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