BV-AVD-R Treatment Children Hodgkin's Lymphoma

This study is a prospective study with period from October 2022 to December 2024, and planned to enroll 44 children with newly diagnosed intermediate- and high-risk classical HL. All patients will undergo Positron Emission Tomography(PET)/Computed Tomography(CT) at the time of initial diagnosis and after 2 cycles of modified BV+R+AVD regimen to determine early response. Rapid early responders (RER) defined as CR after 2 cycles of therapy. Slow early responders (SER) defined as no CR (partial response (PR) or stable disease) after 2 cycles of therapy. Intermediate-risk patients were stage IA bulk/E, IB, IIA bulk/E, IIB, and IIIA. High-risk patients were stage IIB bulk/E, IIIA bulk/E, IIIB, and IVA/B. The primary endpoints include ORR (CR+PR) and adverse events. The secondary endpoints include progression-free survival (PFS), event-free survival (EFS) and overall survival (OS) at 6 months and 1 year.