Quantifying MGMT protein for optimal cancer therapy of glioblastoma

摘要

Methods are provided for treating a cancer patient suffering from a glioblastoma (GBM) by administering to the patient an effective amount of temozolomide, wherein a mass spectrometry analysis of a protein digest of a formalin-fixed tumor sample from the patient evidences an amount of a MGMT fragment peptide less than or substantially equal to 150 amol/μg.