Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma

<i>Background</i>: We assessed whether serial ctDNA monitoring of plasma and saliva predicts response and resistance to osimertinib in EGFR-mutant lung adenocarcinoma. Three ctDNA technologies—blood-based droplet-digital PCR (ddPCR), next-generation sequencing (NGS), and saliva-based EFI...

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Main Authors: Chul Kim, Liqiang Xi, Constance M. Cultraro, Fang Wei, Gregory Jones, Jordan Cheng, Ahmad Shafiei, Trinh Hoc-Tran Pham, Nitin Roper, Elizabeth Akoth, Azam Ghafoor, Vikram Misra, Nina Monkash, Charles Strom, Michael Tu, Wei Liao, David Chia, Clive Morris, Seth M. Steinberg, Hadi Bagheri, David T. W. Wong, Mark Raffeld, Udayan Guha
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/13/3342
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author Chul Kim
Liqiang Xi
Constance M. Cultraro
Fang Wei
Gregory Jones
Jordan Cheng
Ahmad Shafiei
Trinh Hoc-Tran Pham
Nitin Roper
Elizabeth Akoth
Azam Ghafoor
Vikram Misra
Nina Monkash
Charles Strom
Michael Tu
Wei Liao
David Chia
Clive Morris
Seth M. Steinberg
Hadi Bagheri
David T. W. Wong
Mark Raffeld
Udayan Guha
author_facet Chul Kim
Liqiang Xi
Constance M. Cultraro
Fang Wei
Gregory Jones
Jordan Cheng
Ahmad Shafiei
Trinh Hoc-Tran Pham
Nitin Roper
Elizabeth Akoth
Azam Ghafoor
Vikram Misra
Nina Monkash
Charles Strom
Michael Tu
Wei Liao
David Chia
Clive Morris
Seth M. Steinberg
Hadi Bagheri
David T. W. Wong
Mark Raffeld
Udayan Guha
author_sort Chul Kim
collection DOAJ
description <i>Background</i>: We assessed whether serial ctDNA monitoring of plasma and saliva predicts response and resistance to osimertinib in EGFR-mutant lung adenocarcinoma. Three ctDNA technologies—blood-based droplet-digital PCR (ddPCR), next-generation sequencing (NGS), and saliva-based EFIRM liquid biopsy (eLB)—were employed to investigate their complementary roles. <i>Methods</i>: Plasma and saliva samples were collected from patients enrolled in a prospective clinical trial of osimertinib and local ablative therapy upon progression (NCT02759835). Plasma was analyzed by ddPCR and NGS. Saliva was analyzed by eLB. <i>Results</i>: A total of 25 patients were included. We analyzed 534 samples by ddPCR (<i>n</i> = 25), 256 samples by NGS (<i>n</i> = 24) and 371 samples by eLB (<i>n</i> = 22). Among 20 patients who progressed, ctDNA progression predated RECIST 1.1 progression by a median of 118 days (range: 61–272 days) in 11 (55%) patients. Of nine patients without ctDNA progression by ddPCR, two patients had an increase in mutant <i>EGFR</i> by eLB and two patients were found to have ctDNA progression by NGS. Levels of ctDNA measured by ddPCR and NGS at early time points, but not volumetric tumor burden, were associated with PFS. <i>EGFR</i>/<i>ERBB2</i>/<i>MET/KRAS</i> amplifications, <i>EGFR</i> C797S, <i>PIK3CA</i> E545K, <i>PTEN</i> V9del, and <i>CTNNB1</i> S45P were key resistance mechanisms identified by NGS. <i>Conclusion</i>: Serial assessment of ctDNA in plasma and saliva predicts response and resistance to osimertinib, with each assay having supplementary roles.
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spelling doaj.art-2f0bc14b4de5496a937750d19c0b42752023-11-22T02:36:24ZengMDPI AGCancers2072-66942021-07-011313334210.3390/cancers13133342Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung AdenocarcinomaChul Kim0Liqiang Xi1Constance M. Cultraro2Fang Wei3Gregory Jones4Jordan Cheng5Ahmad Shafiei6Trinh Hoc-Tran Pham7Nitin Roper8Elizabeth Akoth9Azam Ghafoor10Vikram Misra11Nina Monkash12Charles Strom13Michael Tu14Wei Liao15David Chia16Clive Morris17Seth M. Steinberg18Hadi Bagheri19David T. W. Wong20Mark Raffeld21Udayan Guha22Thoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USALaboratory of Pathology, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USASchool of Dentistry, University of California, Los Angeles, Los Angeles, CA 90024, USAInivata, Cambridge CB21 6GS, UKSchool of Dentistry, University of California, Los Angeles, Los Angeles, CA 90024, USARadiology and Imaging Sciences, Clinical Center, NIH, Bethesda, MD 20892, USALaboratory of Pathology, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USALiquid Diagnostics LLC, San Clemente, CA 92673, USALiquid Diagnostics LLC, San Clemente, CA 92673, USAEZLife Bio Inc., Los Angeles, CA 91324, USADepartment of Pathology and Laboratory Medicine, UCLA, Los Angeles, CA 90095, USAInivata, Cambridge CB21 6GS, UKBiostatistics and Data Management Section, NCI, NIH, Bethesda, MD 20892, USARadiology and Imaging Sciences, Clinical Center, NIH, Bethesda, MD 20892, USASchool of Dentistry, University of California, Los Angeles, Los Angeles, CA 90024, USALaboratory of Pathology, CCR, NCI, NIH, Bethesda, MD 20892, USAThoracic and GI Malignancies Branch, CCR, NCI, NIH, Bethesda, MD 20892, USA<i>Background</i>: We assessed whether serial ctDNA monitoring of plasma and saliva predicts response and resistance to osimertinib in EGFR-mutant lung adenocarcinoma. Three ctDNA technologies—blood-based droplet-digital PCR (ddPCR), next-generation sequencing (NGS), and saliva-based EFIRM liquid biopsy (eLB)—were employed to investigate their complementary roles. <i>Methods</i>: Plasma and saliva samples were collected from patients enrolled in a prospective clinical trial of osimertinib and local ablative therapy upon progression (NCT02759835). Plasma was analyzed by ddPCR and NGS. Saliva was analyzed by eLB. <i>Results</i>: A total of 25 patients were included. We analyzed 534 samples by ddPCR (<i>n</i> = 25), 256 samples by NGS (<i>n</i> = 24) and 371 samples by eLB (<i>n</i> = 22). Among 20 patients who progressed, ctDNA progression predated RECIST 1.1 progression by a median of 118 days (range: 61–272 days) in 11 (55%) patients. Of nine patients without ctDNA progression by ddPCR, two patients had an increase in mutant <i>EGFR</i> by eLB and two patients were found to have ctDNA progression by NGS. Levels of ctDNA measured by ddPCR and NGS at early time points, but not volumetric tumor burden, were associated with PFS. <i>EGFR</i>/<i>ERBB2</i>/<i>MET/KRAS</i> amplifications, <i>EGFR</i> C797S, <i>PIK3CA</i> E545K, <i>PTEN</i> V9del, and <i>CTNNB1</i> S45P were key resistance mechanisms identified by NGS. <i>Conclusion</i>: Serial assessment of ctDNA in plasma and saliva predicts response and resistance to osimertinib, with each assay having supplementary roles.https://www.mdpi.com/2072-6694/13/13/3342ctDNAEGFRosimertinibNSCLC
spellingShingle Chul Kim
Liqiang Xi
Constance M. Cultraro
Fang Wei
Gregory Jones
Jordan Cheng
Ahmad Shafiei
Trinh Hoc-Tran Pham
Nitin Roper
Elizabeth Akoth
Azam Ghafoor
Vikram Misra
Nina Monkash
Charles Strom
Michael Tu
Wei Liao
David Chia
Clive Morris
Seth M. Steinberg
Hadi Bagheri
David T. W. Wong
Mark Raffeld
Udayan Guha
Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma
Cancers
ctDNA
EGFR
osimertinib
NSCLC
title Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma
title_full Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma
title_fullStr Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma
title_full_unstemmed Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma
title_short Longitudinal Circulating Tumor DNA Analysis in Blood and Saliva for Prediction of Response to Osimertinib and Disease Progression in EGFR-Mutant Lung Adenocarcinoma
title_sort longitudinal circulating tumor dna analysis in blood and saliva for prediction of response to osimertinib and disease progression in egfr mutant lung adenocarcinoma
topic ctDNA
EGFR
osimertinib
NSCLC
url https://www.mdpi.com/2072-6694/13/13/3342
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