title: Limitations of pharmacogenomic predictor discovery in Phase II clinical trials.
abstract: Pharmacogenomic marker discovery projects are increasingly incorporated into Phase II clinical trials in the hope of identifying molecular predictors of response to therapy. At the same time, some of the inherent technical and conceptual limitations of this approach are also increasingly recognized. This manuscript will review some of these limitations. We suggest that it may be more productive to use pharmacogenomic, or other molecular data, from small Phase II clinical trials to assess the clinical utility of previously defined putative markers rather than use the data primarily for discovery. We also describe a simple clinical trial design that could accomplish this. The content of this article is based on a presentation during a symposium on 'Novel Trial Designs for Early Drug Development' at the Annual Meeting of the American Association of Cancer Research in Los Angeles, CA, USA, on April 17, 2007.
authors.affiliation: University of Texas, MD Anderson Cancer Center, Department of Breast Medical Oncology, Unit 1354, PO Box 301439, Houston, TX 77230-1439, USA. lpusztai@mdanderson.org
authors.forename: Lajos
authors.initials: L
authors.lastname: Pusztai
mesh_terms: D017322:Clinical Trials, Phase II as Topic / Q000379:methods* / Q000592:standards; D004358:Drug Therapy / Q000379:methods; D005819:Genetic Markers; D006801:Humans; D010597:Pharmacogenetics / Q000379:methods* / Q000592:standards; D015203:Reproducibility of Results
chemical_list: D005819:Genetic Markers