OBJECTIVES: - Establish a mechanism to bank specimens of tumor cells and host germline DNA from patients with acute lymphoblastic leukemia (ALL) or non-Hodgkin lymphoma at first and subsequent relapse. - Make these specimens available to qualified researchers to study the biology of ALL. OUTLINE: This is a multicenter study. Patients undergo collection of bone marrow and peripheral blood at diagnosis of relapse and/or at the end of the first month of treatment. Patients are followed periodically for up to 10 years. PROJECTED ACCRUAL: Not specified.
Last updated: 11/03/2012