Abstract 4386
Background
Previously our group showed the potential use of a score based on MGMT, NDRG-1 and PHLDA-3 immunohistochemistry (IHC) expression as predictor of outcome in operated PanNET. The present multicenter project is retrospectively analyzing the predictive/prognosis role of MGMT, NDRG-1 and PHLDA-3 in patients with advanced PanNET treated CAPTEM or everolimus.
Methods
IHC nuclear staining for MGMT and PHLDA-3 is being scored as 0, 1-5%, 6-50% and ≥ 51%. For NDRG-1, we are using a cytoplasmic score from 0 to 3 based on staining intensity and distribution pattern (patched or diffuse).
Results
Until now, clinical and samples data from 96 patients (110 samples) has been collected ad are currently being analyzed. Based on our previous results, we will develop an imunohistochemistry prognostic score (IPS, score from 0 to 4) and try to correlate it with clinical variables collected in our database.
Conclusions
As we described previously in operated PanNET, we will try to describe the potential role of IPS as predictive/ prognostic factor in advanced PanNET. More mature results of this work will be presented during 2019 ESMO Congress.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
Navarrabiomed Biomedical Research Center, Pamplona, Navarra, Spain.
Funding
GETNE.
Disclosure
All authors have declared no conflicts of interest.
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