Discovery of a putative blood-based protein signature associated with response to ALK tyrosine kinase inhibition

Autor: Pascal Croteau, Christian Couture, Mathilde Couetoux du Tertre, Valérie Hindie, Valerie Higenell, Karen Gambaro, Yannick-André Breton, Cyrla Hoffert, Victor Cohen, Lise Tremblay, Maud Marques, Laura McIntosh, Normand Blais, Stephane Parent, Gerald Batist, Hangjun Wang, Alan Spatz, Gwenael Pottiez, Nicole Bouchard, Laetitia Cortes, Vincent Pelsser, Jason Agulnik, Luisa Izzi, Razvan Diaconescu, Suzan McNamara
Rok vydání: 2020
Předmět:
Zdroj: Clinical Proteomics
ISSN: 1559-0275
1542-6416
DOI: 10.1186/s12014-020-9269-6
Popis: Background ALK tyrosine kinase inhibition has become a mainstay in the clinical management of ALK fusion positive NSCLC patients. Although ALK mutations can reliably predict the likelihood of response to ALK tyrosine kinase inhibitors (TKIs) such as crizotinib, they cannot reliably predict response duration or intrinsic/extrinsic therapeutic resistance. To further refine the application of personalized medicine in this indication, this study aimed to identify prognostic proteomic biomarkers in ALK fusion positive NSCLC patients to crizotinib. Methods Twenty-four patients with advanced NSCLC harboring ALK fusion were administered crizotinib in a phase IV trial which included blood sampling prior to treatment. Targeted proteomics of 327 proteins using MRM-MS was used to measure plasma levels at baseline (including pre-treatment and early treatment blood samples) and assess potential clinical association. Results Patients were categorized by duration of response: long-term responders [PFS ≥ 24 months (n = 7)], normal responders [3 Conclusion In conjunction with ALK mutation, the expression of this proteomic signature may represent a liquid biopsy-based marker of long-term response to crizotinib in NSCLC. Expanding the utility of prognostic biomarkers of response duration could influence choice of therapy, therapeutic sequencing, and potentially the need for alternative or combination therapy. Trial registration ClinicalTrials.gov, NCT02041468. Registered 22 January 2014, https://clinicaltrials.gov/ct2/show/NCT02041468?term=NCT02041468&rank=1
Databáze: OpenAIRE