Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift

Brain metastases (BMs) are common among patients affected by HER2+ metastatic breast cancer (>30%). The management of BMs is usually multimodal, including surgery, radiotherapy, systemic therapy and palliative care. Standard brain radiotherapy (RT) includes the use of stereotactic radiotherapy (S...

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Main Authors: Edy Ippolito, Sonia Silipigni, Paolo Matteucci, Carlo Greco, Sofia Carrafiello, Vincenzo Palumbo, Claudia Tacconi, Claudia Talocco, Michele Fiore, Rolando Maria D’Angelillo, Sara Ramella
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/14/6/1514
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author Edy Ippolito
Sonia Silipigni
Paolo Matteucci
Carlo Greco
Sofia Carrafiello
Vincenzo Palumbo
Claudia Tacconi
Claudia Talocco
Michele Fiore
Rolando Maria D’Angelillo
Sara Ramella
author_facet Edy Ippolito
Sonia Silipigni
Paolo Matteucci
Carlo Greco
Sofia Carrafiello
Vincenzo Palumbo
Claudia Tacconi
Claudia Talocco
Michele Fiore
Rolando Maria D’Angelillo
Sara Ramella
author_sort Edy Ippolito
collection DOAJ
description Brain metastases (BMs) are common among patients affected by HER2+ metastatic breast cancer (>30%). The management of BMs is usually multimodal, including surgery, radiotherapy, systemic therapy and palliative care. Standard brain radiotherapy (RT) includes the use of stereotactic radiotherapy (SRT) for limited disease and whole brain radiotherapy (WBRT) for extensive disease. The latter is an effective palliative treatment but has a reduced effect on brain local control and BM overall survival, as it is also associated with severe neurocognitive sequelae. Recent advances both in radiation therapy and systemic treatment may change the paradigm in this subset of patients who can experience long survival notwithstanding BMs. In fact, in recent studies, SRT for multiple BM sites (>4) has shown similar efficacy when compared to irradiation of a limited number of lesions (one to three) without increasing toxicity. These findings, in addition to the introduction of new drugs with recognized intracranial activity, may further limit the use of WBRT in favor of SRT, which should be employed for treatment of both multiple-site BMs and for oligo-progressive brain disease. This review summarizes the supporting literature and highlights the need for optimizing combinations of the available treatments in this setting, with a particular focus on radiation therapy.
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spelling doaj.art-cd921e56febe4ab8a5181abbc0e6a8dc2023-11-30T20:56:29ZengMDPI AGCancers2072-66942022-03-01146151410.3390/cancers14061514Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm ShiftEdy Ippolito0Sonia Silipigni1Paolo Matteucci2Carlo Greco3Sofia Carrafiello4Vincenzo Palumbo5Claudia Tacconi6Claudia Talocco7Michele Fiore8Rolando Maria D’Angelillo9Sara Ramella10Radiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyRadiation Oncology, Tor Vergata University, 00133 Rome, ItalyRadiation Oncology, Campus Bio-Medico University, Via Alvaro del Portillo 21, 00128 Rome, ItalyBrain metastases (BMs) are common among patients affected by HER2+ metastatic breast cancer (>30%). The management of BMs is usually multimodal, including surgery, radiotherapy, systemic therapy and palliative care. Standard brain radiotherapy (RT) includes the use of stereotactic radiotherapy (SRT) for limited disease and whole brain radiotherapy (WBRT) for extensive disease. The latter is an effective palliative treatment but has a reduced effect on brain local control and BM overall survival, as it is also associated with severe neurocognitive sequelae. Recent advances both in radiation therapy and systemic treatment may change the paradigm in this subset of patients who can experience long survival notwithstanding BMs. In fact, in recent studies, SRT for multiple BM sites (>4) has shown similar efficacy when compared to irradiation of a limited number of lesions (one to three) without increasing toxicity. These findings, in addition to the introduction of new drugs with recognized intracranial activity, may further limit the use of WBRT in favor of SRT, which should be employed for treatment of both multiple-site BMs and for oligo-progressive brain disease. This review summarizes the supporting literature and highlights the need for optimizing combinations of the available treatments in this setting, with a particular focus on radiation therapy.https://www.mdpi.com/2072-6694/14/6/1514brain metastasesstereotactic radiotherapyHER2+multimodal treatmentradiosensitizationside effects
spellingShingle Edy Ippolito
Sonia Silipigni
Paolo Matteucci
Carlo Greco
Sofia Carrafiello
Vincenzo Palumbo
Claudia Tacconi
Claudia Talocco
Michele Fiore
Rolando Maria D’Angelillo
Sara Ramella
Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift
Cancers
brain metastases
stereotactic radiotherapy
HER2+
multimodal treatment
radiosensitization
side effects
title Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift
title_full Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift
title_fullStr Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift
title_full_unstemmed Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift
title_short Radiotherapy for HER 2 Positive Brain Metastases: Urgent Need for a Paradigm Shift
title_sort radiotherapy for her 2 positive brain metastases urgent need for a paradigm shift
topic brain metastases
stereotactic radiotherapy
HER2+
multimodal treatment
radiosensitization
side effects
url https://www.mdpi.com/2072-6694/14/6/1514
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