Dr. Whitlock’s research interests include the biology and treatment of childhood acute leukemias, the development of new drugs for the treatment of childhood cancers, and the biology and treatment of histiocytic disorders. He was the inaugural Vice-Chair for New Agents and Relapse studies for the Acute Lymphoblastic Leukemia Committee of the Children’s Oncology Group (COG), and is current or past Chair or Vice-Chair of several COG clinical trials. He is the lead investigator for an international phase I trial of nelarabine combination therapy for relapsed T-cell ALL (T2008-002: NECTAR) through the Therapeutic Advances in Childhood Leukemia (TACL) consortium, and served two terms as the first chair of TACL’s Steering & Prioritization Committee. He is a past President of the Histiocyte Society, an international scientific organization which supports research in, and conducts clinical trials for, histiocytic disorders.