NSCLC
Conditions
Interventions
None listed
Sponsors
Yokohama City University Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: We will include full article, brief report, and conference abstract published in any language that provide data for sensitivity and specificity by immunohistochemical markers to diagnose adenocarcinoma and squamous cell carcinoma of the lung. Case-control study design consisted of patients with adenocarcinoma and squamous cell carcinoma will be accepted though case-control design may be counted as risk of bias according to Quality Assessment of Diagnostic Accuracy Studies-2(QUADAS-2). Target population will be patients with NSCLC. Commonly used pathological criteria will be accepted along with WHO 2015 criteria. Patients with both surgical and biopsy specimens will be allowed. Specimen outside the lung such as lymph nodes and pleural effusion will be accepted. Immunocytochemical stein using pleural effusion cell block will be also accepted along with immunohistochemical stein. Target immunohistochemical markers include P40, CK5/6, P63, and desmocollin-3 (DSC3) for squamous cell carcinoma and TTF-1, Napsin A, and cytokeratin 7 (CK7) for adenocarcinoma. Immunohistochemical technique using any commercially available antibodies and non-commercial antibodies will be accepted. Reference test should be pathological diagnosis by pathologists.
Exclusion criteria
Exclusion criteria: An article that provide data of either sensitivity or specificity will be excluded since bivariate analysis is not applicable to such data. Specificity evaluated among lung cancer cases will not be used for our analysis because analysis including both NSCLC and small-cell lung cancer will underestimate the specificity of markers. Studies focusing on non-pulmonary cancers and metastatic lung cancer of non-pulmonary origin will be excluded. Similarly, studies that compared NSCLC subtypes and mesothelioma will not be accepted.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Sensitivity, specificity, area under curve (AUC), and diagnostic odds ratio will be evaluated. If two or more of cutoffs are applied in an original article, all of weak, moderate, and strong positive will be collectively considered positive. To diagnose adenocarcinoma, both adenocarcinoma and adenosquamous carcinoma will be counted since adenosquamous carcinoma has adenocarcinoma component while large cell carcinoma and NSCLC not otherwise specified will not be counted as adenocarcinoma. Similar algorithm will be applied to diagnose squamous cell carcinoma. If data for multiple clones, e.g. 8G7G3/1, SPT24, and SP141 clones of TTF-1, are available, the data of 8G7G3/1 will be selected for our analysis because 8G7G3/1 clone has been known to provide the best diagnostic odds ratio among the three clones. Subgroup analysis focusing on each clone will be also done. | — |
Countries
Japan
Contacts
Public ContactNobuyuki Horita
Yokohama City University Hospital Chemotherapy Center
Outcome results
None listed