Management einer persistierenden Kolitis nach erfolgreicher Immuntherapie eines nicht-kleinzelligen Karzinoms der Lunge

Zusammenfasssung

Immuncheckpoint-Inhibitoren haben als neue Generation von Medikamenten in der Anti-Tumortherapie bemerkenswerte Wirksamkeit gezeigt. Die unspezifische Aktivierung des Immunsystems führt jedoch zu einer Reihe von unerwünschten Nebenwirkungen, sog. immune-related adverse events (irAEs), inklusive des Auftretens von Diarrhoe und Kolitis bei etwa einem Drittel der behandelten Patienten.

Endoskopisch und histologisch gibt es weitreichende Überlappungen der immunvermittelten Kolitis mit der klassischen CED, was eine Unterscheidung erschwert.

Therapeutisch kommen bei Grad-3- (schwere) bis Grad-4-Kolitiden (lebensbedrohlich) neben dem Abbruch der ICI-Therapie hochdosiert Glukokortikoide zum Einsatz. Steroidrefraktäre Fälle (bis 42%) profitieren vom TNF-Hemmer Infliximab. Vedolizumab stellt, analog bei chronisch entzündlichen Darmerkrankungen, die Zweitlinientherapie bei Infliximab-refraktären Fällen dar. Zur Wirksamkeit von Tofacitinib bei therapierefraktären Fällen existieren bislang nur wenige Daten.

Wir beschreiben den Fall und das Therapiemanagement einer schweren und andauernden immunvermittelten Kolitis nach erfolgreicher Immunochemotherapie mit Pembrolizumab bei einem 80-jährigen Mann mit einem metastasierten, nicht kleinzelligen Karzinom der Lunge und vorbestehender Colitis indeterminata (colitis unclassified) sowie weiteren Komorbiditäten.

Abstract

Immune checkpoint inhibitors have shown remarkable efficacy as new-generation drugs in anti-tumor therapy. However, the nonspecific activation of the immune system leads to a number of adverse side effects, so-called immune-related adverse events (irAEs), including the occurrence of diarrhea and colitis in about one third of treated patients.

Endoscopically and histologically, there is significant overlap of immune-mediated colitis with classic IBD, making differentiation difficult.

Therapeutically, high-dose glucocorticoids are used in grade 3 (severe) to grade 4 (life-threatening) colitis, in addition to discontinuation of ICI therapy. Steroid-refractory cases (up to 42%) benefit from the TNF inhibitor infliximab. Vedolizumab, analogous to inflammatory bowel disease, represents second-line therapy for infliximab-refractory cases. Little data exist to date on the efficacy of tofacitinib in refractory cases.

We describe the case and therapeutic management of severe and persistent immune-mediated colitis after successful immunochemotherapy with pembrolizumab in an 80-year-old man with metastatic non-small cell carcinoma of the lung and pre-existing colitis unclassified and other comorbidities.

Schlüsselwörter

Immuncheckpoint Inhibitor - Immune related colitis - Pembrolizumab - Infliximab - Vedolizumab - Tofacitinib - Herpes zoster

Keywords

Immuncheckpoint Inhibitor - Immune related colitis - Pembrolizumab - Infliximab - Vedolizumab - Tofacitinib - Herpes zoster

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