PRIMARY OBJECTIVES:
I. To utilize clinical and biological characteristics of acute leukemias to screen for patient eligibility for available phase I/II Pediatric Acute Leukemia (PedAL) sub-trials.
II. To maintain a longitudinal and comprehensive registry, as well as a specimen bank, from relapse in children and young adults with acute leukemias.
OUTLINE:
Patients undergo collection of blood and/or bone marrow samples at baseline, end of treatment cycle(s), and at relapse/refractory disease status (if applicable).
After completion of study, patients are followed up every 3 months for 2 years, and then every 6 months for 3 years.
Inclusion Criteria:
* Patients must be less than 22 years of age at the time of study enrollment
* Patient must have one of the following at the time of study enrollment:
* Patient has known or suspected relapsed/refractory (including primary refractory) AML as defined in protocol
* This includes isolated myeloid sarcoma
* Patient has known or suspected relapsed/refractory (including primary refractory) myeloid leukemia of Down syndrome (ML-DS)
* Patient has known or suspected relapsed ALL as defined in protocol that meets one of the following criteria:
* Second or greater B-ALL medullary relapse, excluding KMT2Ar
* Any first or greater B-ALL medullary relapse involving KMT2Ar
* Any first or greater T-ALL medullary relapse with or without KMT2Ar
* Patient has known or suspected relapsed/refractory (including primary refractory) mixed phenotype acute leukemia (MPAL) as defined in protocol
* Patient has known or suspected de novo or relapsed/refractory (including primary refractory) treatment-related AML (t-AML)
* Patient has known or suspected de novo or relapsed/refractory (including primary refractory) myelodysplastic syndrome (MDS) or treatment-related myelodysplastic syndrome (t-MDS)
* Note: Relapsed/refractory disease includes stable disease, progressive disease, and disease relapse.
* Patient has known or suspected de novo or relapsed/refractory (including primary refractory) juvenile myelomonocytic leukemia (JMML)
* Note: Relapsed/refractory disease includes stable disease, progressive disease, and disease relapse.
* All patients and/or their parents or legal guardians must sign a written informed consent
* All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met
Leukemia, not otherwise specified
Leukemia, other
