The objective of this analysis was to examine the relationship between genomic variation and health outcomes in studies performed in non-small cell lung cancer (NSCLC) patients treated with single agent epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) using a systematic review with statistical pooling of data.
We performed a systematic search of the literature using the MEDLINE, BIOSIS, and EMABASE databases from July 1997 to July 2007. Eligible studies were evaluated for quality and clinical, methodological, and statistical heterogeneity. Abstracted data judged to be sufficiently homogenous were pooled using a fixed effect model.
In conclusion, EGFR mutation and protein expression status may provide useful clinical information in terms of the likelihood of tumor response and disease prognosis. EGFR gene copy number and to a lesser extent, EGFR protein expression status, appear to be promising biomarkers for predicting a survival benefit with EGFR-TKI therapy in second line NSCLC, but further evidence is needed.
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Josh Carlson was supported in part by a Pre Doctoral Fellowship in Health Outcomes from the PhRMA Foundation.
Conflict of interest statement
The authors would like to disclose the following financial relationships: Josh Carlson has served as a consultant to Genentech, Inc. David Veenstra has received research funding and served as a consultant to Genentech, Inc., F. Hoffmann-La Roche, and Bristol-Myers Squibb. Scott Ramsey has served as a consultant to Genentech, Inc. and has received research funding from Bristol-Myers Squibb. Lou Garrison has been a consultant to Genentech, Inc. and F. Hoffmann-La Roche, Ltd.
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Carlson, J.J., Garrison, L.P., Ramsey, S.D. et al. Epidermal growth factor receptor genomic variation in NSCLC patients receiving tyrosine kinase inhibitor therapy: a systematic review and meta-analysis. J Cancer Res Clin Oncol 135, 1483–1493 (2009). https://doi.org/10.1007/s00432-009-0595-3
- Non-small cell