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- Title
Fulvestrant versus anastrozole for the treatment of advanced breast carcinoma: A prospectively planned combined survival analysis of two multicenter trials.
- Authors
Anthony Howell; John Pippen; Richard M. Elledge; Louis Mauriac; Ignace Vergote; Stephen E. Jones; Steven E. Come; C. Kent Osborne; John F.R. Robertson
- Abstract
Fulvestrant is an estrogen receptor antagonist with no agonist effects. In the second‐line treatment of advanced breast carcinoma, fulvestrant was shown previously to be as effective as the third‐generation aromatase inhibitor, anastrozole, in terms of time to disease progression and objective response rates. The authors reported the overall survival results from these studies.A prospectively planned, combined, overall survival analysis was performed, including data from two Phase III trials that compared the efficacy and tolerability of fulvestrant (250 mg monthly; n = 428) with anastrozole (1 mg daily; n = 423) in the treatment of postmenopausal women with advanced breast carcinoma who had disease progression after receipt of previous endocrine treatment.At an extended median follow‐up of 27.0 months (range, 0–66.9 months), 319 (74.5%) patients in the fulvestrant group and 322 (76.1%) patients in the anastrozole group had died. Prolonged survival was observed with both drugs, with 10–20% of patients still alive > 5 years after randomization. The median overall survival was similar between treatments, being 27.4 months and 27.7 months in fulvestrant and anastrozole‐treated patients, respectively (hazards ratio, 0.98; 95% confidence interval, 0.84–1.15; P = 0.809). Fulvestrant continued to be well tolerated, and was associated with a significantly lower incidence of joint disorders compared with anastrozole (P = 0.0234).The current analysis showed that fulvestrant was similar to anastrozole with respect to overall survival in the second‐line treatment of postmenopausal women with advanced breast carcinoma. Cancer 2005. © 2005 American Cancer Society.
- Subjects
ESTROGEN receptors; BREAST cancer; CANCER treatment; DISEASES in women; CANCER in women
- Publication
Cancer (0008543X), 2005, Vol 104, Issue 2, p236
- ISSN
0008-543X
- Publication type
Article
- DOI
10.1002/cncr.21163