TY - JOUR AU - Placke, Jan-Malte AU - Kimmig, Mona AU - Griewank, Klaus AU - Herbst, Rudolf AU - Terheyden, Patrick AU - Utikal, Jochen AU - Pföhler, Claudia AU - Ulrich, Jens AU - Kreuter, Alexander AU - Mohr, Peter AU - Gutzmer, Ralf AU - Meier, Friedegund AU - Dippel, Edgar AU - Welzel, Julia AU - Engel, Daniel Robert AU - Kreft, Sophia AU - Sucker, Antje AU - Lodde, Georg AU - Krefting, Frederik AU - Stoffels, Ingo AU - Klode, Joachim AU - Roesch, Alexander AU - Zimmer, Lisa AU - Livingstone, Elisabeth AU - Hadaschik, Eva AU - Becker, Jürgen AU - Weichenthal, Michael AU - Tasdogan, Alpaslan AU - Schadendorf, Dirk AU - Ugurel, Selma TI - Correlation of tumor PD-L1 expression in different tissue types and outcome of PD-1-based immunotherapy in metastatic melanoma - analysis of the DeCOG prospective multicenter cohort study ADOREG/TRIM. JO - EBioMedicine VL - 96 SN - 2352-3964 CY - Amsterdam [u.a.] PB - Elsevier M1 - DKFZ-2023-01806 SP - 104774 PY - 2023 AB - PD-1-based immune checkpoint inhibition (ICI) is the major backbone of current melanoma therapy. Tumor PD-L1 expression represents one of few biomarkers predicting ICI therapy outcome. The objective of the present study was to systematically investigate whether the type of tumor tissue examined for PD-L1 expression has an impact on the correlation with ICI therapy outcome.Pre-treatment tumor tissue was collected within the prospective DeCOG cohort study ADOREG/TRIM (CA209-578; NCT05750511) between February 2014 and May 2020 from 448 consecutive patients who received PD-1-based ICI for non-resectable metastatic melanoma. The primary study endpoint was best overall response (BOR), secondary endpoints were progression-free (PFS) and overall survival (OS). All endpoints were correlated with tumor PD-L1 expression (quantified with clone 28-8; cutoff ≥5 KW - Biomarker (Other) KW - Immune checkpoint inhibition (Other) KW - Melanoma (Other) KW - Therapy outcome (Other) KW - Tumor PD-L1 (Other) LB - PUB:(DE-HGF)16 C6 - pmid:37660535 DO - DOI:10.1016/j.ebiom.2023.104774 UR - https://inrepo02.dkfz.de/record/282517 ER -