Leland Stanford Junior University

Dan Denney

Arash Ash Alizadeh

Ronald Levy

Predictive biomarkers identify those patients suffering from immunoglobulin positive (Ig) B lineage malignancies that are responsive to active immunotherapy, where the active immunotherapy comprises vaccination with a tumor-specific idiotype-immunogen. It is shown herein that patient responsiveness to the idiotype-immunogen is dependent upon the sequence of the immunogen, where an immunogen having a low number of tyrosine residues in the CDR1 (herein termed CDR1-Y) regions of one or both of the immunogen heavy and light chains is predictive of a positive anti-tumor response, while a high number of CDR1 tyrosine residues (herein termed CDR1-Y) is predictive of a low anti tumor response.

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Fremont, CA, United States of America

Dan Denney