A Children's Oncology Group Protocol for Collecting and Banking Relapsed Acute Lymphoblastic Leukemia Research Specimens
The purpose of this study is to collect leukemia cells and normal blood cells from patients with ALL that relapse, and to store them for use in future research studies. Participants in this study have been diagnosed with acute lymphoblastic leukemia (ALL) that has relapsed (come back) after previous treatment, or while still receiving treatment. This storage is sometimes called ¿Cell Banking or Bio Banking¿. Specimens collected as part of this study will only be used for research.
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