Targeting the Epidermal Growth Factor Receptor in Addition to Chemotherapy in Patients with Advanced Pancreatic Cancer: A Systematic Review and Meta-Analysis
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- Jaseela Chiramel
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Alison Backen
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Rille Pihlak
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Angela Lamarca
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Melissa Frizziero
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Noor-ul-Ain Tariq
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Richard Hubner
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Juan Valle
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
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- Eitan Amir
- Department of Medical Oncology, Princess Margaret Cancer Centre/University of Toronto, 610 University Avenue, Toronto, ON M5G 2M9, Canada
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- Mairéad McNamara
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
説明
<jats:p>Overexpression of epidermal growth factor receptors (EGFR) occurs in >90% of pancreatic ductal adenocarcinomas (PDACs) and is associated with a poorer prognosis. A systematic review of electronic databases identified studies exploring the addition of EGFR-targeted treatment to chemotherapy in patients with locally advanced (LA)/metastatic PDAC. Efficacy, safety and tolerability of EGFR-targeted therapy were explored using meta-analysis of randomised controlled trials (RCTs). Meta-regression was utilised to explore factors associated with improved prognosis (all studies) and benefit from EGFR-targeted therapy (RCTs). Twenty-eight studies (7 RCTs and 21 cohort studies) comprising 3718 patients were included. The addition of EGFR-targeted treatment to chemotherapy did not improve progression-free (pooled hazard ratio (HR): 0.90, p = 0.15) or overall survival (HR: 0.94, p = 0.18). EGFR-targeted therapy was associated with increased treatment-related deaths (pooled odds ratio (OR): 5.18, p = 0.007), and grade (G)3/4 rash (OR: 4.82, p = 0.03). There was a borderline significant increase in G3/4 diarrhoea (OR: 1.75, p = 0.06), but no effect on treatment discontinuation without progression (OR: 0.87, p = 0.25). Neither G3/4 rash nor diarrhoea were associated with increased survival benefit from EGFR-targeted therapy. The effect of EGFR-targeted therapy on overall survival (OS) appeared greater in studies with a greater proportion of LA rather than metastatic patients (R = −0.69, p < 0.001). Further studies in unselected patients with advanced PDAC are not warranted. The benefit from EGFR inhibitors may be limited to patient subgroups not yet clearly defined.</jats:p>
収録刊行物
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- International Journal of Molecular Sciences
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International Journal of Molecular Sciences 18 (5), 909-, 2017-04-26
MDPI AG