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Hematology 2006
© 2006 The American Society of Hematology

Optimal Use of Prognostic Factors in Non-Hodgkin Lymphoma

Laurie H. Sehn

Correspondence: Laurie H. Sehn, MD, MPH, BC Cancer Agency, Vancouver Clinic, 600 West 10th Ave, Vancouver, BC, Canada V5Z 4E6; Phone 604-877-6000; Fax 604-877-0585; Email lsehn{at}bccancer.bc.ca

Abstract

The management of non-Hodgkin lymphoma is complicated by wide heterogeneity within recognized subtypes. Patients with supposedly similar diagnoses can have remarkably varied clinical presentations, molecular profiles and clinical outcomes. Reliable prognostic markers could allow the identification of patient subsets that may benefit from alternate approaches. Historically, a large number of clinical and molecular prognostic factors have been elucidated. However, the recent introduction of new therapies such as monoclonal antibodies has revolutionized treatment practices and greatly improved outcomes. This has called into question the value of previously recognized prognostic factors that need to be revalidated in the era of immunochemotherapy. It would appear that the commonly used clinical indices (IPI and FLIPI) retain predictive capacity, although they may have limited ability to identify a very poor outcome group. Currently there are no molecular markers that have been revalidated and shown to retain significance in the setting of current treatment practices for diffuse large B-cell lymphoma or follicular lymphoma. The biologic insights provided by molecular studies should allow for more targeted therapies to be developed, which will increase treatment choice and the possibility of tailored therapy in the future. It is imperative that future steps forward be made in the context of well-designed clinical trials with prospective correlative studies of clinical and biologic markers. This will allow us to continuously assess outcome predictors in the context of treatment change and to rationally design tailored treatment algorithms.


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Copyright © 2006 by the American Society of Hematology.