Efficacy of late line pertuzumab with trastuzumab and chemotherapy in HER2-positive metastatic breast cancer : An Australian case series
© 2019 John Wiley & Sons Australia, Ltd..
BACKGROUND: Pertuzumab, when combined with trastuzumab and chemotherapy, is a highly active human epidermal growth factor receptor 2 (HER2), targeting agent in the neoadjuvant, adjuvant and first-line metastatic HER2-positive breast cancer setting. The efficacy of late-line (after first/second-line) pertuzumab in combination with trastuzumab and chemotherapy is unknown.
AIMS: To establish pertuzumab efficacy by performing an audit of patients who received pertuzumab after first-line HER2 directed therapy. We sought to establish whether efficacy differed by clinicopathological factors.
METHODS: The primary endpoint was progression-free survival (PFS) and the secondary endpoint, overall survival (OS). Clinicopathological factors, PFS and OS data were collated and clinicopathological factors associated with PFS were evaluated using Cox regression models.
RESULTS: Fourteen women were identified. Six (43%) had hormone receptor (HR) negative and eight (57%) had HR-positive, metastatic HER2-positive breast cancer. Median follow up was 22.8 months, median prior lines of therapy were 5 (range: 1-9). Median time from diagnosis of metastatic disease to receiving pertuzumab was 4.5 years (range: 4.2-5.8). All patients received initial chemotherapy with pertuzumab and trastuzumab (taxane-based 71%). Median PFS was 9 months (95% confidence interval [CI]: 7-not estimable [NE]) and median OS was not reached (95% CI, 16 months-NE). Univariable analysis demonstrated that HR-negative patients had a significantly longer PFS than HR-positive patients (hazard ratio = 0.11; 95% CI, 0.01-0.88; P = 0.04).
CONCLUSION: This small cases series reports a favorable PFS and OS for pertuzumab with trastuzumab and chemotherapy in the later line metastatic setting. This finding warrants further study.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
Asia-Pacific journal of clinical oncology - 15(2019), 6 vom: 16. Dez., Seite 377-382 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Bergin, Alice R T [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 15.01.2020 Date Revised 15.01.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/ajco.13195 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
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| 100 | 1 | |a Bergin, Alice R T |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Efficacy of late line pertuzumab with trastuzumab and chemotherapy in HER2-positive metastatic breast cancer |b An Australian case series |
| 264 | 1 | |c 2019 | |
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| 500 | |a Date Completed 15.01.2020 | ||
| 500 | |a Date Revised 15.01.2020 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2019 John Wiley & Sons Australia, Ltd. | ||
| 520 | |a BACKGROUND: Pertuzumab, when combined with trastuzumab and chemotherapy, is a highly active human epidermal growth factor receptor 2 (HER2), targeting agent in the neoadjuvant, adjuvant and first-line metastatic HER2-positive breast cancer setting. The efficacy of late-line (after first/second-line) pertuzumab in combination with trastuzumab and chemotherapy is unknown | ||
| 520 | |a AIMS: To establish pertuzumab efficacy by performing an audit of patients who received pertuzumab after first-line HER2 directed therapy. We sought to establish whether efficacy differed by clinicopathological factors | ||
| 520 | |a METHODS: The primary endpoint was progression-free survival (PFS) and the secondary endpoint, overall survival (OS). Clinicopathological factors, PFS and OS data were collated and clinicopathological factors associated with PFS were evaluated using Cox regression models | ||
| 520 | |a RESULTS: Fourteen women were identified. Six (43%) had hormone receptor (HR) negative and eight (57%) had HR-positive, metastatic HER2-positive breast cancer. Median follow up was 22.8 months, median prior lines of therapy were 5 (range: 1-9). Median time from diagnosis of metastatic disease to receiving pertuzumab was 4.5 years (range: 4.2-5.8). All patients received initial chemotherapy with pertuzumab and trastuzumab (taxane-based 71%). Median PFS was 9 months (95% confidence interval [CI]: 7-not estimable [NE]) and median OS was not reached (95% CI, 16 months-NE). Univariable analysis demonstrated that HR-negative patients had a significantly longer PFS than HR-positive patients (hazard ratio = 0.11; 95% CI, 0.01-0.88; P = 0.04) | ||
| 520 | |a CONCLUSION: This small cases series reports a favorable PFS and OS for pertuzumab with trastuzumab and chemotherapy in the later line metastatic setting. This finding warrants further study | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a HER2 positive | |
| 650 | 4 | |a late-line HER2-targeted therapy | |
| 650 | 4 | |a metastatic breast cancer | |
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| 650 | 7 | |a ERBB2 protein, human |2 NLM | |
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| 650 | 7 | |a Receptor, ErbB-2 |2 NLM | |
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| 700 | 1 | |a Savas, Peter |e verfasserin |4 aut | |
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| 700 | 1 | |a Cho, Doah |e verfasserin |4 aut | |
| 700 | 1 | |a Lynch, Jodi |e verfasserin |4 aut | |
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| 700 | 1 | |a Stuart-Harris, Robin |e verfasserin |4 aut | |
| 700 | 1 | |a Teo, Lee Na |e verfasserin |4 aut | |
| 700 | 1 | |a Yap, Saw Yee |e verfasserin |4 aut | |
| 700 | 1 | |a Loi, Sherene |e verfasserin |4 aut | |
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