244
Participants
Start Date
December 18, 2025
Primary Completion Date
May 15, 2028
Study Completion Date
May 15, 2028
Allogeneic Hematopoietic Stem Cell Transplantation
Given IV
Biospecimen Collection
Undergo blood, urine and buccal swab collection
Bone Marrow Biopsy
Undergo bone marrow biopsy
Busulfan
Given IV
Chest Radiography
Undergo chest x-ray
Computed Tomography
Undergo CT scan
Echocardiography Test
Undergo echocardiography
Fludarabine
Given IV
Melphalan
Given IV
Multigated Acquisition Scan
Undergo MUGA
Placebo Administration
Given PO
Positron Emission Tomography
Undergo PET scan
Total-Body Irradiation
Undergo total body irradiation
Venetoclax
Given PO
National Cancer Institute (NCI)
NIH