title: Cross-over comparison of tamoxifen and aminoglutethimide in advanced breast cancer.
abstract: Thirty-four postmenopausal patients with advanced breast cancer had an overall objective response rate of 47% when treated with aminoglutethimide and hydrocortisone initially and a response rate of 24% when crossed over to therapy with tamoxifen after progression on aminoglutethimide. A similar group of 32 patients experienced a response rate of 28% when treated with tamoxifen first and a 19% objective response rate on subsequent therapy with aminoglutethimide. Patients who failed to respond to the first therapy seldom responded on cross-over to the alternate therapy. Toxicities were acceptable with both forms of therapy. Tamoxifen and aminoglutethimide used sequentially are effective forms of palliative hormonal therapy in metastatic breast cancer.
mesh_terms: D000616:Aminoglutethimide / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000627:therapeutic use; D008593:Menopause; D008875:Middle Aged; D009376:Neoplasms, Hormone-Dependent / Q000188:drug therapy*; D010166:Palliative Care; D013629:Tamoxifen / Q000627:therapeutic use*; D013997:Time Factors
chemical_list: D013629:Tamoxifen; D000616:Aminoglutethimide; D006854:Hydrocortisone