BACKGROUND: The authors have previously reported 2 consecutive phase 2 trials in patients with early breast cancer that overexpresses human epidermal growth factor receptor 2 (HER2) to assess the feasibility of incorporating anti-HER2 therapies into dose-dense (dd) chemotherapy regimens. The incidence of congestive heart failure (CHF) at a median follow-up of 2 years was 1.4% and 3.2%, respectively. METHODS: In trial A, patients received dd doxorubicin and cyclophosphamide (AC)→paclitaxel (T) (each given every 2 weeks) × 4 with trastuzumab (H) given × 1 year. In trial B, weekly T (weekly × 12) was substituted for ddT and lapatinib × 1 year was added. Herein, the authors report the longer-term incidence of CHF and distant disease-free survival (DDFS). RESULTS: From January 2005 to May 2008, 165 patients enrolled (median age, 46 years, with a median left ventricular ejection fraction of 68% [range, 52%-81%]), 17%of whom had previous hypertension. With a median follow-up of 84 months (trial A) and 57 months (trial B), 1 additional patient developed CHF. Therefore, the cumulative incidence of CHF was 1.4% (95% confidence interval [95% CI], 1.36%-7.7%) for trial A and 4.2% (95% CI, 4.2%-10.4%) for trial B. The 5-year DDFS for trials A and B was 92% (95% CI, 83%-97%) and 89% (95% CI, 81%-94%), respectively. CONCLUSIONS: Longer follow-up of these 2 studies has demonstrated that ddAC→TH only or with lapatinib is associated with a low risk of CHF and promising DDFS in patients with early breast cancer.
BACKGROUND: The authors have previously reported 2 consecutive phase 2 trials in patients with early breast cancer that overexpresses human epidermal growth factor receptor 2 (HER2) to assess the feasibility of incorporating anti-HER2 therapies into dose-dense (dd) chemotherapy regimens. The incidence of congestive heart failure (CHF) at a median follow-up of 2 years was 1.4% and 3.2%, respectively. METHODS: In trial A, patients received dd doxorubicin and cyclophosphamide (AC)→paclitaxel (T) (each given every 2 weeks) × 4 with trastuzumab (H) given × 1 year. In trial B, weekly T (weekly × 12) was substituted for ddT and lapatinib × 1 year was added. Herein, the authors report the longer-term incidence of CHF and distant disease-free survival (DDFS). RESULTS: From January 2005 to May 2008, 165 patients enrolled (median age, 46 years, with a median left ventricular ejection fraction of 68% [range, 52%-81%]), 17%of whom had previous hypertension. With a median follow-up of 84 months (trial A) and 57 months (trial B), 1 additional patient developed CHF. Therefore, the cumulative incidence of CHF was 1.4% (95% confidence interval [95% CI], 1.36%-7.7%) for trial A and 4.2% (95% CI, 4.2%-10.4%) for trial B. The 5-year DDFS for trials A and B was 92% (95% CI, 83%-97%) and 89% (95% CI, 81%-94%), respectively. CONCLUSIONS: Longer follow-up of these 2 studies has demonstrated that ddAC→TH only or with lapatinib is associated with a low risk of CHF and promising DDFS in patients with early breast cancer.
Authors: Ian E Krop; Thomas M Suter; Chau T Dang; Luc Dirix; Gilles Romieu; Claudio Zamagni; Marc L Citron; Mario Campone; Na Xu; Melanie Smitt; Luca Gianni Journal: J Clin Oncol Date: 2015-02-23 Impact factor: 44.544
Authors: Karen A Cadoo; Patrick G Morris; Elizabeth P Cowell; Sujata Patil; Clifford A Hudis; Heather L McArthur Journal: Clin Breast Cancer Date: 2016-08-01 Impact factor: 3.225
Authors: Chau Dang; Hao Guo; Julie Najita; Denise Yardley; Kelly Marcom; Kathy Albain; Hope Rugo; Kathy Miller; Matthew Ellis; Iuliana Shapira; Antonio C Wolff; Lisa A Carey; Beverly Moy; John Groarke; Javid Moslehi; Ian Krop; Harold J Burstein; Clifford Hudis; Eric P Winer; Sara M Tolaney Journal: JAMA Oncol Date: 2016-01 Impact factor: 31.777