Comparing Anastrozole-Placebo to the Combination Anastrozole-ZD1839 in Postmenopausal Patients With Estrogen Receptor and/or Progesterone Receptor Metastatic Breast Cancer
Status: COMPLETED
Study type: INTERVENTIONAL
Conditions: Breast Cancer
Interventions: DRUG: Gefitinib|DRUG: Anastrozole
Sponsor: AstraZeneca