Abstract 20P
Background
Measurement of serum human epidermal growth factor receptor-2 (HER-2/neu) levels for breast cancer is still controversial and not recommended in any clinical procedures. However, it seems that HER-2 measuring can plays an important role as a diagnostic marker for early selection of therapeutic approach as well as predict of prognosis in breast cancer patients. We aimed to undertake a systematic review and meta-analysis focuses on the diagnostic value of serum HER-2 level measures by ELISA in compare to other methods due to its ease of implementation and cost-effectiveness for HER-2 positive two plus in IHC.
Methods
We performed a systematic search via PubMed, Scopus, Cochrane Library and Web of Science databases for human diagnostic studies reported the levels of serum HER2 in breast cancer patients, which was confirmed using histopathological examination such as immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH). Meta-analyses were carried out for sensitivity, specificity, accuracy, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (PLR) and negative likelihood ratio (NLR).
Results
Fourteen studies entered into the study. The meta-analysis indicated that serum HER2 levels had sensitivity 53.05 (95%CI 40.82-65.28), specificity 79.27 (95%CI 73.02-85.51), accuracy 72.06 (95%CI 67.04-77.08), PPV 56.18 (95%CI 44.16-68.20), NPV 76.93 (95%CI 69.56-84.31), PLR 2.10 (95%CI 1.69-2.50) and NLR 0.58 (95%CI 0.44-0.71).
Conclusions
Our findings revealed that, although serum HER2 levels showed a low sensitivity for breast cancer diagnosis, its specificity is significantly high in this regard. Hence, it seems that measurement of serum HER2 levels can play a significant role as a verification test for initial negative screening test results, especially in low-income regions due to its cost-effectiveness and ease of implementation in comparison with monitoring of tissue HER-2.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
Amir Shamshirian and Reza Alizadeh-Navaei.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
65P - Updated efficacy and safety of entrectinib in patients with NTRK fusion-positive tumours: Integrated analysis of STARTRK-2, STARTRK-1 and ALKA-372-001
Presenter: Christian Rolfo
Session: Poster display session
Resources:
Abstract
66P - Brain metastases, treatment patterns and outcomes in ROS1-positive NSCLC patients from US oncology community centers
Presenter: Matthew Krebs
Session: Poster display session
Resources:
Abstract
67P - Pooled safety analysis of tepotinib in Asian patients with advanced solid tumours
Presenter: Kentaro Yamazaki
Session: Poster display session
Resources:
Abstract
68P - A novel anti-EGFR antibody HLX07 for potential treatment of squamous cell carcinoma of the head and neck
Presenter: Ming Mo Hou
Session: Poster display session
Resources:
Abstract
69P - Irinotecan and cisplatin therapy-induced neutropenia as a prognostic factor in patients with extensive-disease small cell lung cancer
Presenter: Hiroshi Ishikawa
Session: Poster display session
Resources:
Abstract
70P - Is safe and efficient by intraoperative endoscopic nasobiliary drainage over primary closure of the common bile duct for cholecystolithiasis combined with common bile duct stones: A meta-analysis
Presenter: Jiasheng Cao
Session: Poster display session
Resources:
Abstract
71P - Irreversible electroporation versus radiotherapy after induction chemotherapy on survival in patients with locally advanced pancreatic cancer: A propensity score analysis
Presenter: Chaobin He
Session: Poster display session
Resources:
Abstract
72P - Novel technique of near-focus mode for accurate operation during endoscopic submucosal tunneling procedure: A two-center comparative study
Presenter: Wei Peng
Session: Poster display session
Resources:
Abstract
73P - Cabozantinib in combination with anti-PD1 immune checkpoint inhibitor in syngeneic tumour mouse models
Presenter: Rachel Sparks
Session: Poster display session
Resources:
Abstract
74TiP - Phase I study of BI 836880, a VEGF/Ang2-blocking nanobody®, as monotherapy and in combination with BI 754091, an anti-PD-1 antibody, in Japanese patients (pts) with advanced solid tumours
Presenter: Kentaro Yamazaki
Session: Poster display session
Resources:
Abstract