Cited by 40Pancreatic and Hepatic Oncology ResearchProtein Kinase Regulation and GTPase SignalingProtein Tyrosine Phosphatases

Extensive preclinical validation of combined RMC-4550 and LY3214996 supports clinical investigation for KRAS mutant pancreatic cancer

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Frank, Katrin J., Mulero-Sánchez, Antonio, Berninger, Alexandra, Ruiz-Cañas, Laura, Bosma, Astrid, Görgülü, Kıvanç, Wu, Nan, Diakopoulos, Kalliope N. +16 more·2022·Cell Reports Medicine

Abstract

Over 90% of pancreatic cancers present mutations in KRAS, one of the most common oncogenic drivers overall. Currently, most KRAS mutant isoforms cannot be targeted directly. Moreover, targeting single RAS downstream effectors induces adaptive resistance mechanisms. We report here on the combined inhibition of SHP2, upstream of KRAS, using the allosteric inhibitor RMC-4550 and of ERK, downstream of KRAS, using LY3214996. This combination shows synergistic anti-cancer activity in vitro , superior disruption of the MAPK pathway, and increased apoptosis induction compared with single-agent treatments. In vivo , we demonstrate good tolerability and efficacy of the combination, with significant tumor regression in multiple pancreatic ductal adenocarcinoma (PDAC) mouse models. Finally, we show evidence that 18 F-fluorodeoxyglucose (FDG) positron emission tomography (PET) can be used to assess early drug responses in animal models. Based on these results, we will investigate this drug combination in the SHP2 and ERK inhibition in pancreatic cancer (SHERPA; ClinicalTrials.gov: NCT04916236) clinical trial, enrolling patients with KRAS -mutant PDAC.

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Authors
Frank, K. J., Mulero-Sánchez, A., Berninger, A., Ruiz-Cañas, L., Bosma, A., Görgülü, K., Wu, N., Diakopoulos, K. N., Kaya-Aksoy, E., Ruess, D. A., Kabacaoğlu, D., Schmidt, F., Kohlmann, L., van Tellingen, O., Thijssen, B., van de Ven, M., Proost, N., Kossatz, S., Weber, W. A., Sainz, B., Bernards, R., Algül, H., Lesina, M., & Mainardi, S.
Affiliations
  • TUM Klinikum (DE)
  • The Netherlands Cancer Institute (NL)
  • University of Freiburg (DE)
Corresponding author
Mainardi, Sara
Venue
Cell Reports Medicine
Publisher
Elsevier BV
Published
2022-11
Volume
3
Issue
11
Pages
100815
ISSN
2666-3791 (ISSN-L)
OpenAlex
W4309331198
Cited by
40
References
67
Citations by year
2026: 8 · 2025: 5 · 2024: 14 · 2023: 13
FWCI
3.35
Type
journal article
Language
en
Open access
Locations
  • Cell Reports Medicine (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by-nc-nd)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion, other-oa)
Funders
  • American Association for Cancer Research
  • Lustgarten Foundation (SU2C-AACR-PCC-01-18)
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
Keywords
pancreatic ductal adenocarcinoma, LY3214996, ERK inhibitor, combination therapy, MAPK inhibition, apoptosis, FDG-PET, preclinical validation
MeSH terms
Animals, Clinical Trials as Topic, Pancreatic Neoplasms, Pyrazoles, Pyrroles, Proto-Oncogene Proteins p21(ras), Carcinoma, Pancreatic Ductal, Cell Line, Tumor, Protein Kinase Inhibitors, Mice

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