Resumen de Dual neoadjuvant blockade plus chemotherapy versus monotherapy for the treatment of women with non-metastatic HER2-positive breast cancer: a systematic review and meta-analysis
Juan C. Vázquez, Silvia Antolín Novoa, M. Ruiz Borrego, Sònia Servitja Tormo, Emilio Alba, Agustí Barnadas i Molins, Ana Lluch Hernández, Miguel Martín Jiménez, Álvaro Rodríguez Lescure, Ivan Solà Arnau, X. Bonfill, G. Urrutia Cuchi, Pedro Sánchez Rovira
Background We aimed to determine the effect of dual anti-HER2 blockade compared to monotherapy on clinically important outcomes.
Methods We carried out a systematic review updated until July 2022. The outcomes included pathological complete response (pCR), clinical response, event-free survival, and overall survival.
Results We identified eleven randomized clinical trials (2836 patients). When comparing paclitaxel plus dual treatment versus paclitaxel plus trastuzumab or lapatinib, dual treatment was associated with a higher probability of achieving a pathological complete response (OR 2.88, 95% CI 2.02–4.10). Addition of a taxane to an anthracycline plus cyclophosphamide and fluorouracil, plus lapatinib or trastuzumab, showed that the dual treatment was better than lapatinib alone (OR 2.47, 95% CI 1.41–4.34), or trastuzumab alone (OR 1.89, 95% CI 1.13–3.16). Dual treatment may result in an increase in survival outcomes and tumour clinical response, although such benefits are not consistent for all the combinations studied.
Conclusions The use of dual blockade with combinations of trastuzumab and pertuzumab can be recommended for the neoadjuvant treatment of women with HER2-positive breast cancer.
PROSPERO Registration number: CRD42018110273.
