Studying Biomarkers in Samples From Patients With Recurrent or Metastatic Head and Neck Cancer Treated on ECOG-E1302 Trial
RATIONALE: Studying samples of blood and tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.
PURPOSE: This laboratory study is looking at biomarkers in samples from patients with recurrent or metastatic head and neck cancer treated on ECOG-E1302 trial.
Head and Neck Cancer
Genetic: mutation analysis
Genetic: polymerase chain reaction
Genetic: polymorphism analysis
Other: laboratory biomarker analysis
|Official Title:||Evaluation of Polymorphisms and Mutations in Genes Postulated to Alter the Efficacy of Gefitinib in Samples From E1302|
- The prevalence of c-MET, ABCG2, and K-ras polymorphisms or mutation status summarized by frequency and percentage for all samples [ Designated as safety issue: No ]
- Association of c-MET, ABCG2, and K-ras polymorphisms or mutation status with toxicity using Fisher's exact test [ Designated as safety issue: No ]
- Association between biomarkers and time to event distribution estimated by by Kaplan-Meier and estimated by log-rank tests [ Designated as safety issue: No ]
- Association between biomarkers and clinical endpoints using logistic regression model and Cox proportional hazards [ Designated as safety issue: No ]
|Study Start Date:||May 2012|
|Estimated Primary Completion Date:||June 2012 (Final data collection date for primary outcome measure)|
- To evaluate the frequency of ATP-binding cassette, sub-family G (WHITE), member 2 (ABCG2), met proto-oncogene (hepatocyte growth factor receptor) (c-MET), and v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (K-ras) polymorphisms or mutations in this study population and the predictiveness of these polymorphisms on survival, time to progression, response rate, and toxicities.
OUTLINE: Archived tumor tissue and peripheral blood mononuclear cells are analyzed for the frequency of ABCG2, c-MET, and K-ras polymorphisms or mutations by polymerase chain reaction (PCR). Results are then correlated with patients' clinical outcomes and toxicity.
|Principal Investigator:||Jill Kolesar, PharmD||University of Wisconsin, Madison|