Treatment Strategies for Residual Disease following Neoadjuvant Chemotherapy in Patients with Early-Stage Breast Cancer

Breast cancer continues to be the most diagnosed cancer among women worldwide. Neoadjuvant chemotherapy is the standard of care for breast cancer patients with locally advanced disease and patients with poor pathological features, such as triple-negative (TN) or human epidermal growth factor receptor-2 (HER2)-positive subtypes. Neoadjuvant therapy offers several advantages, including better surgical outcomes, early systemic treatment for micro-metastases, and accurate tumor biology and chemosensitivity assessment. Multiple studies have shown that achieving pathological complete response (pCR) following neoadjuvant chemotherapy is associated with better prognosis and better treatment outcomes; almost half of such patients may fail to achieve pCR. Tumor proliferative index, hormone receptor (HR) status, and HER2 expression are the major predictors of pCR. Strategies to improve pCR have been dependent on augmenting neoadjuvant chemotherapy with the addition of taxanes and dual anti-HER2 targeted therapy in patients with HER2-positive tumor, and more recently, immunotherapy for patients with TN disease. The clinical management of patients with residual disease following neoadjuvant chemotherapy varies and depends mostly on the level of HR expression and HER2 status. Recent data have suggested that switching trastuzumab to trastuzumab-emtansine (T-DM1) in patients with HER2-positive disease and the addition of capecitabine for patients with HER2-negative and HR-negative subtype is associated with a better outcome; both strategies are incorporated into current clinical practice guidelines. This paper reviews available and ongoing studies addressing strategies to better manage patients who continue to have residual disease following neoadjuvant chemotherapy.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Current oncology (Toronto, Ont.) - 29(2022), 8 vom: 16. Aug., Seite 5810-5822

Sprache:

Englisch

Beteiligte Personen:

Abdel-Razeq, Hikmat [VerfasserIn]
Khalil, Hanan [VerfasserIn]
Assi, Hazem I [VerfasserIn]
Dargham, Tarek Bou [VerfasserIn]

Links:

Volltext

Themen:

Ado-Trastuzumab Emtansine
Breast cancer
HER2-negative
HER2-positive
Journal Article
P188ANX8CK
Pathologic complete response
Post-neoadjuvant treatment
Residual disease
Review
SE2KH7T06F
Trastuzumab

Anmerkungen:

Date Completed 26.08.2022

Date Revised 20.09.2022

published: Electronic

Citation Status MEDLINE

doi:

10.3390/curroncol29080458

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM345236327