Whole Genome Sequencing (ChromoSeq®) for Acute Lymphoblastic Leukemia (ALL) Patients

This is a prospective specimen collection study evaluating the feasibility of using the ChromoSeq® assay for upfront classification in a real-time clinical setting of pediatric and young adult acute lymphoid leukemia (ALL) patients. Sixty patients will undergo collections of bone marrow and/or peripheral blood for the ChromoSeq® assay at time of initial workup, and the patients will then be followed for clinical outcomes for up to 65 months.

Eligibility Criteria * Children and young adult patients (\< 30 years of age at time of study enrollment) treated at St. Louis Children's Hospital/Washington University School of Medicine. * Suspected diagnosis or suspected relapse of acute lymphoblastic leukemia (ALL), B- or T-cell. * Concurrent enrollment on a prospective therapeutic trial is allowed as this protocol makes no recommendations regarding treatment approach. * Ability to understand and willingness to sign an IRB approved written informed consent document. All patients and/or their parents or legal guardians must sign an IRB approved written informed consent document.