SABCS: Two Years of Anastrozole Sufficient in HR+ Early Breast CA

Share this content:
SABCS: Two Years of Anastrozole Sufficient in HR+ Early Breast CA
SABCS: Two Years of Anastrozole Sufficient in HR+ Early Breast CA

THURSDAY, Dec. 7, 2017 (HealthDay News) -- For women with hormone-receptor positive early breast cancer, comparable benefit is seen with receiving the aromatase inhibitor anastrozole for two years and five years after an initial five years of adjuvant endocrine therapy, according to a study presented at the annual San Antonio Breast Cancer Symposium, held from Dec. 5 to 9 in Texas.

Michael Gnant, M.D., from the Medical University of Vienna, and colleagues randomized 3,484 women with postmenopausal stage I to III hormone-receptor positive early breast cancer to receive two or five years of additional anastrozole as extended adjuvant therapy, after five years of adjuvant endocrine therapy. Patients were followed for a median of 105.9 months after randomization.

The researchers recorded 757 disease-free survival (DFS) events as of June 30, 2016; 22 percent each in the two-year and five-year groups. No significant difference was seen in DFS (hazard ratio, 0.997; 95 percent confidence interval, 0.86 to 1.15; P = 0.982), or in overall survival, time to secondary carcinoma, and time to contralateral breast cancer. In the two-year and five-year arms, 81.2 and 80.1 percent of patients were still taking the study drug at two years, respectively; 65.6 percent of patients were still on assigned medication at five years in the five-year arm.

"There is simply no rationale to keep most patients on extended aromatase inhibitor for longer than two years," Gnant said in a statement.

The study was funded by AstraZeneca, which manufactures anastrozole.

Press Release
More Information

Share this content:

is free, fast, and customized just for you!




Already a member?

Sign In Now »

Trending Activities

All Professions

Drug Lookup

Browse drugs by: BrandGenericDisease

More in Home

Ground Beef Recalled After E. Coli Outbreak

Ground Beef Recalled After <i>E. Coli</i> Outbreak

Beef was produced and packaged at Cargill Meat Solutions in Fort Morgan, Colo.

Prevalence of Alzheimer's, Related Dementia Set to Double

Prevalence of Alzheimer's, Related Dementia Set to Double

Alzheimer's disease and related dementias burden is expected to increase to 3.3 percent in 2060

Long-Term Outcomes of Breast Implants Explored

Long-Term Outcomes of Breast Implants Explored

Higher rates of Sjogren syndrome, scleroderma, RA, stillbirth, melanoma for silicone implants

is free, fast, and customized just for you!




Already a member?

Sign In Now »