Document Detail


Trastuzumab-induced cardiotoxicity: clinical and prognostic implications of troponin I evaluation.
MedLine Citation:
PMID:  20679614     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: Treatment of breast cancer with trastuzumab is complicated by cardiotoxicity in up to 34% of the patients. In most patients, trastuzumab-induced cardiotoxicity (TIC) is reversible: left ventricular ejection fraction (LVEF) improves after trastuzumab withdrawal and with, or sometimes without, initiation of heart failure (HF) therapy. The reversibility of TIC, however, is not foreseeable, and identification of patients at risk and of those who will not recover from cardiac dysfunction is crucial. The usefulness of troponin I (TNI) in the identification of patients at risk for TIC and in the prediction of LVEF recovery has never been investigated.
PATIENTS AND METHODS: In total, 251 women were enrolled. TNI was measured before and after each trastuzumab cycle. LVEF was evaluated at baseline, every 3 months during trastuzumab therapy, and every 6 months afterward. In case of TIC, trastuzumab was discontinued, and HF treatment with enalapril and carvedilol was initiated. TIC was defined as LVEF decrease of > 10 units and below 50%. Recovery from TIC was defined as LVEF increase above 50%.
RESULTS: TIC occurred in 42 patients (17%) and was more frequent in patients with TNI elevation (TNI+; 62% v 5%; P < .001). Twenty-five patients (60%) recovered from TIC. LVEF recovery occurred less frequently in TNI+ patients (35% v 100%; P < .001). At multivariate analysis, TNI+ was the only independent predictor of TIC (hazard ratio [HR], 22.9; 95% CI, 11.6 to 45.5; P < .001) and of lack of LVEF recovery (HR, 2.88; 95% CI,1.78 to 4.65; P < .001).
CONCLUSION: TNI+ identifies trastuzumab-treated patients who are at risk for cardiotoxicity and are unlikely to recover from cardiac dysfunction despite HF therapy.
Authors:
Daniela Cardinale; Alessandro Colombo; Rosalba Torrisi; Maria T Sandri; Maurizio Civelli; Michela Salvatici; Giuseppina Lamantia; Nicola Colombo; Sarah Cortinovis; Maria A Dessanai; Franco Nolè; Fabrizio Veglia; Carlo M Cipolla
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Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2010-08-02
Journal Detail:
Title:  Journal of clinical oncology : official journal of the American Society of Clinical Oncology     Volume:  28     ISSN:  1527-7755     ISO Abbreviation:  J. Clin. Oncol.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-31     Completed Date:  2010-10-06     Revised Date:  2011-04-05    
Medline Journal Info:
Nlm Unique ID:  8309333     Medline TA:  J Clin Oncol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3910-6     Citation Subset:  IM    
Affiliation:
Cardiology Unit, European Institute of Oncology, Milan, Italy. daniela.cardinale@ieo.it
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MeSH Terms
Descriptor/Qualifier:
Adult
Antibodies, Monoclonal / adverse effects*
Antineoplastic Combined Chemotherapy Protocols / therapeutic use
Breast Neoplasms / drug therapy*,  metabolism*
Drug Interactions
Female
Heart Diseases / chemically induced*
Humans
Middle Aged
Prognosis
Retrospective Studies
Risk
Treatment Outcome
Troponin I / metabolism*
Ventricular Dysfunction, Left / chemically induced
Chemical
Reg. No./Substance:
0/Antibodies, Monoclonal; 0/Troponin I; 0/trastuzumab
Comments/Corrections
Comment In:
J Clin Oncol. 2010 Sep 1;28(25):3901-4   [PMID:  20679626 ]
J Clin Oncol. 2010 Dec 20;28(36):e769   [PMID:  21079139 ]
J Clin Oncol. 2011 Mar 1;29(7):e175-6   [PMID:  21189375 ]
J Clin Oncol. 2011 Mar 1;29(7):e177; author reply e178-9   [PMID:  21189389 ]

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