Penn Studies Point To Strategies for Reducing Painful Breast Cancer Drug Side Effects

SEPTEMBER 29, 2009

Aromatase inhibitors, the same drugs that have buoyed long-term survival rates among breast cancer patients, also carry side effects including joint pain so severe that many patients discontinue these lifesaving medicines. New University of Pennsylvania School of Medicine research, however, has identified patterns that may help clinicians identify and help women at risk of these symptoms sooner in order to increase their chances of sticking with their treatment regimen. In a study published recently in the journal Cancer, researchers in the Abramson Cancer Center found that estrogen withdrawal may play a role in the onset of joint pain, also known as arthralgia, during treatment: Women who stopped getting their menstrual periods less than five years before starting breast cancer treatment were three times more likely to experience these pains than those who reached menopause more than a decade earlier.

In a separate study published in the journal Integrative Cancer Therapies, the Penn researchers found that among women experiencing these symptoms during treatment with aromatase inhibitors (AI), those who received electro-acupuncture – a technique that combines traditional acupuncture with electric stimulation – reported a reduction in joint pain severity and stiffness. Those women also said they suffered less fatigue and anxiety.

The study was led by Jun J. Mao, MD, MSCE, an assistant Professor of Family Medicine and Community Health, and Angela DeMichele, MD, MSCE, an associate professor of Medicine and Epidemiology and Biostatistics.

The expanded PennMedicine press release may be found here.


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