RecruitingPhase 1Drug trialA Phase I Study Investigating the Combination of the Menin Inhibitor Ziftomenib With Venetoclax and Gemtuzumab in Pediatric Patients With Acute Myeloid LeukemiaTo find the recommended dose of ziftomenib in combination with gemtuzumab ozogamicin and venetoclax that can be given to pediatric participants who have relapsed or refractory AML or MPAL.