Ductal carcinoma in situ (DCIS), which accounts for 30% of all newly diagnosed breast cancer, is actually a precancerous lesion. A proportion of patients will have progression to invasive breast cancer, but up until recently, it has not been possible to identify which patients require further...
Results of the large international SOFT trial present a convincing argument for the addition of ovarian function suppression to adjuvant hormonal therapy to reduce the risk of recurrence in premenopausal women with hormone receptor–positive breast cancer at high enough risk to be treated with ...
Interest is high in studying the PI3K pathway in hormone receptor–positive breast cancer, but it is not clear which of the PI3K inhibitors under development—if any—will be a “home run.” Adding the pan-class I selective PI3K inhibitor pictilisib to fulvestrant...
First-line treatment with the combination of palbociclib plus letrozole extended progression-free survival by approximately 50% in patients with metastatic estrogen receptor–positive, HER2-negative breast cancer, according to final results of a randomized phase II study presented at the...
Adjuvant use of bisphosphonates reduced the risk of bone recurrence by 34% and the risk of breast cancer death by 17% in postmenopausal women with early breast cancer in a large meta-analysis conducted by the Early Breast Cancer Trialists’ Collaborative Group (EBCTCG). The potentially...
Five years of treatment with anastrozole reduced the risk of primary breast cancer by 53% in postmenopausal women at high risk for developing the disease, according to an analysis of the IBIS II trial. Anastrozole reduced the risk of estrogen receptor–positive invasive cancers by 58%. The...
Among older women with hormone receptor–positive breast cancer, it is reasonable to omit whole-breast radiation therapy after breast-conserving surgery and neoadjuvant hormone therapy if the patient’s tumors have high levels of estrogen receptor expression, but radiation should remain...
Bevacizumab (Avastin) failed to extend invasive disease–free survival when added to trastuzumab (Herceptin)-directed adjuvant chemotherapy in patients with HER2-positive breast cancer in the phase III BETH trial. Although not specifically designed to answer this question, BETH also...
Results of the phase III TH3RESA trial show that the antibody-conjugate ado-trastuzumab (Kadcyla, previously known as T-DM1) extends progression-free survival in women with advanced HER2-positive breast cancer that progressed on two or more previous HER2-directed therapies including trastuzumab...
Extending radiation to the lymph nodes behind the sternal wall and above the collarbone extends overall survival in patients with stage I to III breast cancer and does not increase toxicity compared to conventional locoregional radiation therapy, according to 10-year results of an international...