Management of toxicities associated with targeted therapies for HR-positive metastatic breast cancer: a multidisciplinary approach is the key to success

Maria Rosaria Valerio, Laura Pizzuti, Fable Zustovich, Nicla La Verde, Enrico De Conciliis, Mirco Pistelli, Alessandra Elvevi, Alessandra Fabi, Francesco Atzori, Daniela Rubino, Ornella Garrone, Marina Elena Cazzaniga, Lorenzo Gianni, Pietro Invernizzi, Chiara Butti, Nicla La Verde, Andrea Michelotti, Elena Collovà, Livio Blasi, Chiara ButtiAntonio Febbraro, Francesco Giotta, Pietro Invernizzi, Massimo Uguccioni, Maria Rosaria Valerio, Andrea Michelotti, Laura Amaducci, Romano Danesi, Corrado Girmenia, Raffaella Palumbo, Ida Paris, Luisa Gianni'

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Purpose: Agents targeting HR-positive, HER2-negative locally advanced or metastatic breast cancer have improved patient outcomes compared with conventional single-agent endocrine therapy. Currently, approved targeted agents include everolimus and three CDK4/6 inhibitors, palbociclib, ribociclib, and abemaciclib. Unlike the well-characterized and easily manageable safety profile of endocrine therapies, adverse events associated with targeted therapies are complex and potentially severe. Their prompt recognition and treatment, crucial for prolonged endocrine sensitivity and survival, may be challenging and requires a multidisciplinary effort and a good knowledge of drug interactions. Methods: We reviewed the current evidence on the drug safety of targeted agents for metastatic breast cancer currently used in clinical practice in Italy, supported by the clinical experience of Italian oncologists with expertise in the field. Results: All oncologists had used CDK4/6 inhibitors in clinical practice and/or within a clinical trial. The clinical management of toxicities, including dose adjustments, treatment interruptions, and concerns regarding special populations is discussed, and the management of relevant adverse events, related to individual agents and class-specific, toxicities is reviewed. Hematologic toxicities have the greatest impact on clinical management of the disease and on patients. Although toxicities associated with the new treatments result in more visits to the physician and more time and attention with patients, they are manageable, with no need for the oncologist to consult with specialist physicians. Conclusions: Based on the available evidence and current guidelines, we propose a series of practical recommendations for multidisciplinary clinical management of the various toxicities associated with the addition of targeted agents to endocrine therapy.
Original languageEnglish
Pages (from-to)483-494
Number of pages12
JournalBreast Cancer Research and Treatment
Volume176
Publication statusPublished - 2019

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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