Associations between AI-Assisted Tumor Amphiregulin and Epiregulin IHC and Outcomes from Anti-EGFR Therapy in the Routine Management of Metastatic Colorectal Cancer

©2023 The Authors; Published by the American Association for Cancer Research..

PURPOSE: High tumor production of the EGFR ligands, amphiregulin (AREG) and epiregulin (EREG), predicted benefit from anti-EGFR therapy for metastatic colorectal cancer (mCRC) in a retrospective analysis of clinical trial data. Here, AREG/EREG IHC was analyzed in a cohort of patients who received anti-EGFR therapy as part of routine care, including key clinical contexts not investigated in the previous analysis.

EXPERIMENTAL DESIGN: Patients who received panitumumab or cetuximab ± chemotherapy for treatment of RAS wild-type mCRC at eight UK cancer centers were eligible. Archival formalin-fixed paraffin-embedded tumor tissue was analyzed for AREG and EREG IHC in six regional laboratories using previously developed artificial intelligence technologies. Primary endpoints were progression-free survival (PFS) and overall survival (OS).

RESULTS: A total of 494 of 541 patients (91.3%) had adequate tissue for analysis. A total of 45 were excluded after central extended RAS testing, leaving 449 patients in the primary analysis population. After adjustment for additional prognostic factors, high AREG/EREG expression (n = 360; 80.2%) was associated with significantly prolonged PFS [median: 8.5 vs. 4.4 months; HR, 0.73; 95% confidence interval (CI), 0.56-0.95; P = 0.02] and OS [median: 16.4 vs. 8.9 months; HR, 0.66 95% CI, 0.50-0.86; P = 0.002]. The significant OS benefit was maintained among patients with right primary tumor location (PTL), those receiving cetuximab or panitumumab, those with an oxaliplatin- or irinotecan-based chemotherapy backbone, and those with tumor tissue obtained by biopsy or surgical resection.

CONCLUSIONS: High tumor AREG/EREG expression was associated with superior survival outcomes from anti-EGFR therapy in mCRC, including in right PTL disease. AREG/EREG IHC assessment could aid therapeutic decisions in routine practice. See related commentary by Randon and Pietrantonio, p. 4021.

Errataetall:

CommentIn: Clin Cancer Res. 2023 Oct 13;29(20):4021-4023. - PMID 37594733

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Clinical cancer research : an official journal of the American Association for Cancer Research - 29(2023), 20 vom: 13. Okt., Seite 4153-4165

Sprache:

Englisch

Beteiligte Personen:

Williams, Christopher J M [VerfasserIn]
Elliott, Faye [VerfasserIn]
Sapanara, Nancy [VerfasserIn]
Aghaei, Faranak [VerfasserIn]
Zhang, Liping [VerfasserIn]
Muranyi, Andrea [VerfasserIn]
Yan, Dongyao [VerfasserIn]
Bai, Isaac [VerfasserIn]
Zhao, Zuo [VerfasserIn]
Shires, Michael [VerfasserIn]
Wood, Henry M [VerfasserIn]
Richman, Susan D [VerfasserIn]
Hemmings, Gemma [VerfasserIn]
Hale, Michael [VerfasserIn]
Bottomley, Daniel [VerfasserIn]
Galvin, Leanne [VerfasserIn]
Cartlidge, Caroline [VerfasserIn]
Dance, Sarah [VerfasserIn]
Bacon, Chris M [VerfasserIn]
Mansfield, Laura [VerfasserIn]
Young-Zvandasara, Kathe [VerfasserIn]
Sudan, Ajay [VerfasserIn]
Lambert, Katy [VerfasserIn]
Bibby, Irena [VerfasserIn]
Coupland, Sarah E [VerfasserIn]
Montazeri, Amir [VerfasserIn]
Kipling, Natalie [VerfasserIn]
Hughes, Kathryn [VerfasserIn]
Cross, Simon S [VerfasserIn]
Dewdney, Alice [VerfasserIn]
Pheasey, Leanne [VerfasserIn]
Leng, Cathryn [VerfasserIn]
Gochera, Tatenda [VerfasserIn]
Mangham, D Chas [VerfasserIn]
Saunders, Mark [VerfasserIn]
Pritchard, Martin [VerfasserIn]
Stott, Helen [VerfasserIn]
Mukherjee, Abhik [VerfasserIn]
Ilyas, Mohammad [VerfasserIn]
Silverman, Rafael [VerfasserIn]
Hyland, Georgina [VerfasserIn]
Sculthorpe, Declan [VerfasserIn]
Thornton, Kirsty [VerfasserIn]
Gould, Imogen [VerfasserIn]
O'Callaghan, Ann [VerfasserIn]
Brown, Nicholas [VerfasserIn]
Turnbull, Samantha [VerfasserIn]
Shaw, Lisa [VerfasserIn]
Seymour, Matthew T [VerfasserIn]
West, Nicholas P [VerfasserIn]
Seligmann, Jenny F [VerfasserIn]
Singh, Shalini [VerfasserIn]
Shanmugam, Kandavel [VerfasserIn]
Quirke, Philip [VerfasserIn]

Links:

Volltext

Themen:

6A901E312A
Amphiregulin
Cetuximab
EC 2.7.10.1
EC 3.6.5.2
EGFR protein, human
Editorial
Epiregulin
ErbB Receptors
Intercellular Signaling Peptides and Proteins
PQX0D8J21J
Panitumumab
Proto-Oncogene Proteins p21(ras)
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 08.11.2023

Date Revised 20.03.2024

published: Print

CommentIn: Clin Cancer Res. 2023 Oct 13;29(20):4021-4023. - PMID 37594733

Citation Status MEDLINE

doi:

10.1158/1078-0432.CCR-23-0859

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM358653525