Green Tea or Polyphenon E in Preventing Lung Cancer in Former Smokers With Chronic Obstructive Pulmonary Disease
Status:
Completed
Trial end date:
1969-12-31
Target enrollment:
Participant gender:
Summary
RATIONALE: Chemoprevention is the use of certain substances to keep cancer from forming,
growing, or coming back. The use of green tea or polyphenon E may prevent cancer from forming
in former smokers with chronic obstructive pulmonary disease.
PURPOSE: This randomized phase II trial is studying how well green tea or polyphenon E work
in preventing lung cancer in former smokers with chronic obstructive pulmonary disease.