Pancreatic Adenocarcinoma with Co-Occurrence of KRAS and EGFR Mutations: Case Report and Literature Review

Abstract: Introduction: Mutation in Kristin ras sarcoma virus (KRAS) oncogene is the main driver in pancreatic ductal adenocarcinoma (PDAC) and is present in nearly 90% of patients with PDAC. Epidermal growth factor receptor (EGFR) mutation is rare in PDAC and is mostly present in the absence of KRAS mutation. Co-occurrence of KRAS and EGFR mutations is extremely rare, and the value of EGFR inhibition in these cases is unknown. Case Presentation: Here, we present a case of metastatic PDAC with co-occurrence of KRAS G12V and EGFR L730R. Despite primary resistance to folinic acid, fluorouracil, irinotecan, oxaliplatin, and gemcitabine/nab-paclitaxel, this patient had a biochemical response (decrease in carbohydrate antigen 19-9) and disease control of 7 months on gemcitabine/erlotinib (an EGFR inhibitor). This outcome is remarkable in the late-line PDAC treatment setting and is unusual after the progression of the tumor on gemcitabine/nab-paclitaxel chemotherapy. Conclusion: This case suggests that gemcitabine/erlotinib could be an effective treatment in patients with PDAC and co-occurrence of EGFR and KRAS mutations.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Pancreatic Adenocarcinoma with Co-Occurrence of KRAS and EGFR Mutations: Case Report and Literature Review ; volume:17 ; number:1 ; year:2024 ; pages:399-406 ; extent:8
Case reports in oncology ; 17, Heft 1 (2024), 399-406 (gesamt 8)

Creator
Mody, Juhi
Kamgar, Mandana

DOI
10.1159/000536552
URN
urn:nbn:de:101:1-2406270104527.377232406244
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:53 AM CEST

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Associated

  • Mody, Juhi
  • Kamgar, Mandana

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