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Molecular Testing in Breast Cancer to Answer More Questions in 2017

Angelica Welch and Gina Columbus
Published: Monday, Jan 30, 2017

Jenny C. Chang, MD

Jenny C. Chang, MD

The challenge of giving patients more or less treatment for their breast cancer, regardless of their subtype, is a question researchers are actively investigating with the use of molecular testing, according to Jenny C. Chang, MD.

State of the Science Summit on Metastatic Breast Cancer.

OncLive: Could you provide an overview of your presentation?

Chang: Breast cancer management is obviously complex and has become increasingly difficult because of the increasing number of tests that we can order, which provide aid in our management of breast cancer. Basically, we still have 3 major subtypes: HR-positive, HER2-positive, and triple-negative breast cancer (TNBC). In each of these subtypes, we can sub-categorize.

We will get a better understanding, rather than test everybody that comes through with full genomic sequencing and circulating tumor cells (CTCs). I am asking whether we can be a little more thoughtful about the tests we order, especially in this era of limiting healthcare costs.

Let’s reflect on the updated ASCO guidelines on tests such as Oncotype DX and MammaPrint. How would you say this helps physicians make better treatment decisions going forward, and do you think those guidelines need to be adjusted again in the near future?

These tests focus on patients for whom [we have trouble] determining whether or not they will benefit from chemotherapy. These tests have been around—I shudder to think—for more than a decade now, but they are still very valuable in determining whether or not a woman may be spared chemotherapy.
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Online CME Activities
TitleExpiration DateCME Credits
Medical Crossfire®: Where Are We Headed in the Treatment of Triple-Negative Breast Cancer?Jul 31, 20191.5
Community Practice Connections™: Evolving Applications for PARP Inhibitors in Ovarian Cancer: Building on a Solid FoundationAug 15, 20191.5
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