Effectiveness of Maintenance Therapy with Pembrolizumab vs. Pemetrexed and Pembrolizumab in Advanced Non-Small Cell Lung Cancer: Real-world Data from the German Prospective CRISP Registry (AIO-TRK-0315) 15. Januar 2026 S. Heinzen, M. Groschek, S. Dörfel, J.K. Schröder, A. Fleitz, S. Zacharias, A. Härzschel, C. Lennartz, A. Groth, P. Ludwig, M. De Wit, J.K. Kern, F. Griesinger, M. Thomas, W.E.E. Eberhardt, M. Sebastian, ESMO 2025. Annals of Oncology, Volume 36, Supplement 2, 2025, Pages S1008-S1009, ISSN 0923-7534, https://doi.org/10.1016/j.annonc.2025.08.2500 Poster