Acupuncture for Aromatase Inhibitor Induced Joint Pain

The purpose of this study is to determine the safety and efficacy of acupuncture as a complementary therapy to pain medication for joint pain associated with aromatase inhibitors for breast cancer treatment. Breast cancer patients are living longer largely due to the benefits of hormonal therapy. Aromatase inhibitors (AIs) are a new class of hormonal agents which block estrogen synthesis in postmenopausal women. However, musculoskeletal pain occurs in up to 50% of patients treated with AIs and often does not respond to conventional pain medications. AI-induced joint pain interferes with patient compliance and may cause major disability. Therefore, safe and effective treatments are needed to alleviate AI-induced musculoskeletal pain. Acupuncture is a traditional Chinese method of medical treatment and a popular modality for treating musculoskeletal pain. Acupuncture involves the use of thin needles to stimulate specific points of the body and leads to pain control through the release of endorphin in the central nervous system. Clinical trials have found a benefit of acupuncture for the treatment of knee and back pain. Given the lack of effective treatments for AI-induced joint pain and the safety and efficacy of acupuncture, it is therefore reasonable to evaluate whether acupuncture is effective in breast cancer patients who experience musculoskeletal pain related to AIs.