Delayed elimination of high-dose methotrexate and use of carboxypeptidase G2 in pediatric patients during treatment for acute lymphoblastic leukemia.

Background: Carboxypeptidase G2 (CPDG ) can be used as rescue treatment in cases of delayed methotrexate elimination (DME) and Mtx-induced nephrotoxicity.

Procedure: Between July 2008 and December 2014, all children (1.0-17.