Biological Factors in Predicting Response to Treatment in Patients With Esophageal Cancer or Rectal Cancer


NCT00628368

Interventional

N/A

Unknown status
RATIONALE: Studying samples of tumor tissue and blood 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 clinical trial is studying how well biological factors work in predicting response to treatment in patients with esophageal cancer or rectal cancer.
Nov 30,2005
All
18 Years
N/A
160

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