TY - JOUR
T1 - Dose-dense adjuvant doxorubicin and cyclophosphamide is not associated with frequent short-term changes in left ventricular ejection fraction
AU - Morris, Patrick G.
AU - Dickler, Maura
AU - McArthur, Heather L.
AU - Traina, Tiffany
AU - Sugarman, Steven
AU - Lin, Nancy
AU - Moy, Beverly
AU - Come, Steven
AU - Godfrey, Laura
AU - Nulsen, Benjamin
AU - Chen, Carol
AU - Steingart, Richard
AU - Rugo, Hope
AU - Norton, Larry
AU - Winer, Eric
AU - Hudis, Clifford A.
AU - Dang, Chau T.
PY - 2009/12/20
Y1 - 2009/12/20
N2 - Purpose: Doxorubicin and cyclophosphamide (AC) every 3 weeks has been associated with frequent asymptomatic declines in left ventricular ejection fraction (LVEF). Dose-dense (dd) AC followed by paclitaxel (P) is superior to the same regimen given every third week. Herein, we report the early cardiac safety of three sequential studies of ddAC alone or with bevacizumab (B). Patients and Methods: Patients with HER2-positive breast cancer were treated on two trials: ddAC followed by P and trastuzumab (T) and ddAC followed by PT and lapatinib. Patients with HER2-normal breast cancer were treated with B and ddAC followed by B and nanoparticle albumin-bound P. Prospective LVEF measurement by multigated radionuclide angiography scan before and after every 2 week AC for 4 cycles and at month 6 from all three trials were aggregated to determine the early risks of cardiac dysfunction. Results: From January 2005 to May 2008, 245 patients were enrolled. The median age was 47 years (range, 27 to 75 years). Median LVEF pre-ddAC was 68% (range, 52% to 82%). LVEF post-ddAC was available in 241 patients (98%) and the median was unchanged at 68% (range, 47% to 81%). Per protocol no patients were ineligible for subsequent targeted biologic therapy based on LVEF decline post-ddAC. In addition, LVEF was available in 222 patients (92%) at 6 months, at which time the median LVEF was similar at 65% (range, 24% to 80%). Within 6 months of initiating chemotherapy, three patients (1.2%; 95% CI, 0.25% to 3.54%) developed CHF, all of whom received T. Conclusion: Dose-dense AC with or without concurrent bevacizumab is not associated with frequent acute or short-term declines in LVEF.
AB - Purpose: Doxorubicin and cyclophosphamide (AC) every 3 weeks has been associated with frequent asymptomatic declines in left ventricular ejection fraction (LVEF). Dose-dense (dd) AC followed by paclitaxel (P) is superior to the same regimen given every third week. Herein, we report the early cardiac safety of three sequential studies of ddAC alone or with bevacizumab (B). Patients and Methods: Patients with HER2-positive breast cancer were treated on two trials: ddAC followed by P and trastuzumab (T) and ddAC followed by PT and lapatinib. Patients with HER2-normal breast cancer were treated with B and ddAC followed by B and nanoparticle albumin-bound P. Prospective LVEF measurement by multigated radionuclide angiography scan before and after every 2 week AC for 4 cycles and at month 6 from all three trials were aggregated to determine the early risks of cardiac dysfunction. Results: From January 2005 to May 2008, 245 patients were enrolled. The median age was 47 years (range, 27 to 75 years). Median LVEF pre-ddAC was 68% (range, 52% to 82%). LVEF post-ddAC was available in 241 patients (98%) and the median was unchanged at 68% (range, 47% to 81%). Per protocol no patients were ineligible for subsequent targeted biologic therapy based on LVEF decline post-ddAC. In addition, LVEF was available in 222 patients (92%) at 6 months, at which time the median LVEF was similar at 65% (range, 24% to 80%). Within 6 months of initiating chemotherapy, three patients (1.2%; 95% CI, 0.25% to 3.54%) developed CHF, all of whom received T. Conclusion: Dose-dense AC with or without concurrent bevacizumab is not associated with frequent acute or short-term declines in LVEF.
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U2 - 10.1200/JCO.2008.20.2952
DO - 10.1200/JCO.2008.20.2952
M3 - Article
C2 - 19901120
AN - SCOPUS:74949098887
SN - 0732-183X
VL - 27
SP - 6117
EP - 6123
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
IS - 36
ER -