Disease-free, overall survival inferior for black women with HR-positive breast cancer

December 11, 2009,

Black women with hormone receptor (HR)-positive breast cancer had worse disease-free and overall survival, according to data presented at the CTRC-AACR Annual San Antonio Breast Cancer Symposium, held Dec. 9-13, 2009.

"Black women had a higher risk for and inferior survival compared with women of other races," said Joseph A. Sparano, M.D., professor of medicine and women's health at Albert Einstein Medical College of Medicine and associate chairman of the Department of Oncology at Montefiore Medical Center in Bronx, N.Y.

"The worse outcome was seen only in those with HR-positive, HER-2-negative , which is the most common type of breast cancer" he added.

Previous research has shown that black women have worse outcomes in operable breast cancer, likely explained by their higher incidence of more advanced-stage disease, more aggressive triple-negative disease, disparities in medical care, and comorbidities.

"When we controlled for these other factors to the extent possible, black race was still associated with a worse outcome, but only in HR-positive disease — this was a new and surprising finding," said Sparano.

The researchers evaluated survival outcomes in 4,817 women (405 were black) with stage 1 to 3 axillary lymph node-positive or high-risk node-negative breast cancer who had undergone surgery. The women were part of the Eastern Cooperative Oncology Group and Breast Cancer Intergroup trial E1199; they received doxorubicin and taxane-containing chemotherapy plus standard hormonal therapy.

"We found that black patients exhibited similar adherence to the chemotherapy and , and they didn't do worse if they had other breast cancer subtypes. This indicates that black women with HR-positive breast cancer are more prone to have disease recurrence despite state of the art medical care," said Sparano.

The researchers are planning additional studies to evaluate whether these findings can be attributed to differences in black women's ability to metabolize hormonal therapies.

Source: American Association for Cancer Research (news : web)

Related Stories

Recommended for you

Stem cell vaccine immunizes lab mice against multiple cancers

February 15, 2018
Stanford University researchers report that injecting mice with inactivated induced pluripotent stem cells (iPSCs) launched a strong immune response against breast, lung, and skin cancers. The vaccine also prevented relapses ...

Induced pluripotent stem cells could serve as cancer vaccine, researchers say

February 15, 2018
Induced pluripotent stem cells, or iPS cells, are a keystone of regenerative medicine. Outside the body, they can be coaxed to become many different types of cells and tissues that can help repair damage due to trauma or ...

Team paves the way to the use of immunotherapy to treat aggressive colon tumors

February 15, 2018
In a short space of time, immunotherapy against cancer cells has become a powerful approach to treat cancers such as melanoma and lung cancer. However, to date, most colon tumours appeared to be unresponsive to this kind ...

Can our genes help predict how women respond to ovarian cancer treatment?

February 15, 2018
Research has identified gene variants that play a significant role in how women with ovarian cancer process chemotherapy.

First comparison of common breast cancer tests finds varied accuracy of predictions

February 15, 2018
Commercially-available prognostic breast cancer tests show significant variation in their abilities to predict disease recurrence, according to a study led by Queen Mary University of London of nearly 800 postmenopausal women.

Catching up to brain cancer: Researchers develop accurate model of how aggressive cancer cells move and spread

February 15, 2018
A brief chat at a Faculty Senate meeting put two University of Delaware researchers onto an idea that could be of great value to cancer researchers.

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

deatopmg
not rated yet Dec 12, 2009
Did they check vitamin D levels [25(OH)D3] in their blood and run a correlation on that?

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.