Phoenix Children’s Hospital Research Institute (PCRI) Website Clinical Trial Listing ** Please complete and return to Shy Walker at swalker@phoenixchildrens.com Study Title: ACCL0933- A Randomized Open-Label Trial of Caspofungin versus Fluconazole to Prevent Invasive Fungal Infections in Children Undergoing Chemotherapy for Acute Myeloid Leukemia (AML) Study Purpose (2-3 sentences in laymen terms): In this study, researchers want to find out if using a newer antifungal drug called caspofungin (also called Cancidasī) will be better than the current standard antifungal drug fluconazole at preventing invasive fungal infections when given to people with AML after receiving chemotherapy treatment. Study Summary (1 paragraph in laymen terms): Prevention of Invasive Fungal Infections (IFI) is important for successful treatment of patients with AML. The current standard antifungal medication used in the prevention of IFI in patients with AML is Fluconazole. The goal of this study is to compare Fluconazole and Caspofungin, a newer antifungal medication, to determine which is better for the prevention of IFI. To learn if one antifungal treatment is better, each child is assigned randomly to one of the treatments: the Fluconazole Arm or the Caspofungin Arm. If for any reason the treatment plan is found to be not the best for your child, the plan will be changed Basic Eligibility Criteria: • Age: 3 months-30 years old • Diagnosis: Newly diagnosed, relapsed or secondary acute myelocytic leukemia (AML). Please consult with your doctor to determine whether your child may participate in this study. Study Location(s): Phoenix Children’s Hospital and other institutions that are members of the Children’s Oncology Group Study Contact(s): Jessica Boklan, MD Dianne Peterson, Research Coordinator (dpeterson@phoenixchildrens.com)