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      Association between serum biomarkers CEA and LDH and response in advanced non‐small cell lung cancer patients treated with platinum‐based chemotherapy

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          Abstract

          Background

          In addition to radiological evaluation, biomarkers may be useful in providing early information on the response to treatment, and supporting clinical decision‐making. The objective of this study was to investigate carcinoembryonic antigen (CEA) and lactate dehydrogenase (LDH) as biomarkers for early assessment of response in patients with advanced non‐small cell lung cancer (NSCLC) treated with platinum‐based chemotherapy.

          Methods

          A retrospective follow‐up study was conducted from 2012 to 2017 among 593 consecutive patients with advanced NSCLC treated with first‐line platinum‐based chemotherapy in a large teaching hospital in the Netherlands. Pretreatment biomarker levels and changes from pretreatment levels were studied for association with radiologic response (partial response [PR] or complete response [CR], according to RECIST 1.1) using multivariate logistic regression, and with overall survival using COX proportional hazard modeling. Patient and disease characteristics such as age and disease stage were taken into account as potential confounding factors.

          Results

          Decreases in CEA and LDH (≥ 20%), particularly early in treatment, were significantly associated with better radiological response. Increases in these biomarkers (≥ 20%) and high pretreatment LDH levels (≥ 247 U/L) were significantly associated with lower overall survival.

          Conclusions

          Our results support determination of CEA and LDH levels for earlier assessment of response to platinum‐based chemotherapy in patients with advanced NSCLC. Hence, routine determination and evaluation of CEA and LDH levels, prior to each cycle of platinum‐based chemotherapy in advanced NSCLC, should be considered as part of daily clinical practice.

          Key points
          Significant findings of the study

          • Serum biomarkers in monitoring of treatment in advanced NSCLC would be useful.

          • CEA and LDH decrease (≥ 20%) is favorable for achieving radiological response.

          • High LDH levels and CEA/LDH increase (≥ 20%) is associated with reduced survival.

          What this study adds

          • Monitoring of CEA seems to be particularly relevant in early stage of treatment.

          • CEA and LDH determination should be considered as part of daily clinical practice.

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          Most cited references20

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          REporting recommendations for tumour MARKer prognostic studies (REMARK)

          Despite years of research and hundreds of reports on tumour markers in oncology, the number of markers that have emerged as clinically useful is pitifully small. Often initially reported studies of a marker show great promise, but subsequent studies on the same or related markers yield inconsistent conclusions or stand in direct contradiction to the promising results. It is imperative that we attempt to understand the reasons that multiple studies of the same marker lead to differing conclusions. A variety of methodological problems have been cited to explain these discrepancies. Unfortunately, many tumour marker studies have not been reported in a rigorous fashion, and published articles often lack sufficient information to allow adequate assessment of the quality of the study or the generalisability of the study results. The development of guidelines for the reporting of tumour marker studies was a major recommendation of the US National Cancer Institute and the European Organisation for Research and Treatment of Cancer (NCI-EORTC) First International Meeting on Cancer Diagnostics in 2000. Similar to the successful CONSORT initiative for randomised trials and the STARD statement for diagnostic studies, we suggest guidelines to provide relevant information about the study design, preplanned hypotheses, patient and specimen characteristics, assay methods, and statistical analysis methods. In addition, the guidelines suggest helpful presentations of data and important elements to include in discussions. The goal of these guidelines is to encourage transparent and complete reporting so that the relevant information will be available to others to help them to judge the usefulness of the data and understand the context in which the conclusions apply.
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            Metastatic non-small cell lung cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up

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              Treatment advances in small cell lung cancer (SCLC).

              Small cell lung cancer (SCLC) is an aggressive tumor characterized by rapid doubling time and high propensity for early development of disseminated disease. Although most patients respond to initial therapy with a platinum doublet, the majority of those with limited stage and virtually all patients with metastatic disease eventually develop tumor progression for which there are limited treatment options. There have been no recent changes in the treatment of SCLC, with platinum plus etoposide and topotecan as the standard first-line and second-line respectively, neither showing survival benefit over the combination of cyclophosphamide, doxorubicin and vincristine, which was developed in the 1970s. More recently, a new understanding of the biology of SCLC has led to the development of novel drugs, of which the most promising are the immune checkpoint inhibitors and the antibody drug conjugate rovalpituzumab tesirine.
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                Author and article information

                Contributors
                d.c.dejong-15@umcutrecht.nl
                v.h.m.deneer@umcutrecht.nl
                Journal
                Thorac Cancer
                Thorac Cancer
                10.1111/(ISSN)1759-7714
                TCA
                Thoracic Cancer
                John Wiley & Sons Australia, Ltd (Melbourne )
                1759-7706
                1759-7714
                07 May 2020
                July 2020
                : 11
                : 7 ( doiID: 10.1111/tca.v11.7 )
                : 1790-1800
                Affiliations
                [ 1 ] Department of Clinical Pharmacy St. Antonius Hospital Nieuwegein/Utrecht The Netherlands
                [ 2 ] Department of Clinical Pharmacy University Medical Center Utrecht Utrecht The Netherlands
                [ 3 ] Division of Pharmacoepidemiology and Clinical Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science Utrecht University Utrecht The Netherlands
                [ 4 ] Department of Epidemiology and Statistics St. Antonius Hospital Nieuwegein/Utrecht The Netherlands
                [ 5 ] Department of Clinical Chemistry St. Antonius Hospital Nieuwegein/Utrecht The Netherlands
                [ 6 ] Department of Pulmonology Meander Medical Center Amersfoort The Netherlands
                Author notes
                [*] [* ] Correspondence

                Vera H.M. Deneer, PharmD, PhD, Department of Clinical Pharmacy, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.

                Tel: +31 8875 5721

                Email: v.h.m.deneer@ 123456umcutrecht.nl

                Author information
                https://orcid.org/0000-0003-0746-5057
                https://orcid.org/0000-0002-8564-4424
                https://orcid.org/0000-0001-9084-8192
                https://orcid.org/0000-0003-1758-7779
                Article
                TCA13449
                10.1111/1759-7714.13449
                7327701
                32383328
                15f5f9da-b871-4812-a74e-79992d0e4c1f
                © 2020 The Authors. Thoracic Cancer published by China Lung Oncology Group and John Wiley & Sons Australia, Ltd

                This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

                History
                : 19 January 2020
                : 03 April 2020
                : 04 April 2020
                Page count
                Figures: 1, Tables: 5, Pages: 11, Words: 6102
                Categories
                Original Article
                Original Articles
                Custom metadata
                2.0
                July, 2020
                Converter:WILEY_ML3GV2_TO_JATSPMC version:5.8.5 mode:remove_FC converted:01.07.2020

                non‐small cell lung cancer (nsclc),small cell lung cancer (sclc),carcinoembryonic antigen (cea),lactate dehydrogenase (ldh),noninvasive quantification of tumor biomarkers

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