Cancer is one of the leading causes of death in children, especially cancer of the haematopoietic system known as leukaemia. Acute lymphoblastic leukaemia is the most common type of leukaemia in children. Since 2019 to now, Mohammad Hoesin Hospital Palembang has used the LLA-2018 national protocol as a chemotherapy protocol for LLA children, but there has been no further research on the outcome…