PT - JOURNAL ARTICLE AU - Rizzo, Tony ED - Gelber, Richard D. TI - Two Years versus One Year of Trastuzumab in Patients with Early Breast Cancer DP - 2012 01 TA - MD Conference Express PG - 11--12 VI - 12 IP - 15 4099 - http://mdc.sagepub.com/content/12/15/11.short 4100 - http://mdc.sagepub.com/content/12/15/11.full AB - The 2005 results of large randomized trials, including the Trastuzumab in Treating Women with Primary Breast Cancer [HERA; NCT00045032] trial, demonstrated statistically significant disease-free survival benefit for 1 year of treatment with trastuzumab compared with observation in patients with human epidermal growth factor receptor 2-positive early breast cancer. After 2005, the HERA trial focused on the secondary objective of comparing 2 years of trastuzumab treatment with 1 year of treatment, and this article discusses the results of this analysis.