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Gkika E, Dejonckheere CS, Sahlmann J, Barth SA, Schimek-Jasch T, Adebahr S, Hecht M, Miederer M, Brose A, Binder H, König J, Grosu AL, Nestle U, Rimner A. Impact of mediastinal tumor burden and lymphatic spread in locally advanced non-small-cell lung cancer: A secondary analysis of the multicenter randomized PET-Plan trial. Radiother Oncol 2024; 200:110521. [PMID: 39236984 DOI: 10.1016/j.radonc.2024.110521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 08/30/2024] [Accepted: 09/02/2024] [Indexed: 09/07/2024]
Abstract
PURPOSE The aim of this secondary analysis of the prospective randomized phase 2 PET-Plan trial (ARO-2009-09; NCT00697333) was to evaluate the impact of mediastinal tumor burden and lymphatic spread in patients with locally advanced non-small-cell lung cancer (NSCLC). METHODS All patients treated per protocol (n = 172) were included. Patients received isotoxically dose-escalated chemoradiotherapy up to a total dose of 60-74 Gy in 30-37 fractions, aiming as high as possible while adhering to normal tissue constraints. Radiation treatment (RT) planning was based on an 18F-FDG PET/CT targeting all lymph node (LN) stations containing CT positive LNs (i.e. short axis diameter > 10 mm), even if PET-negative (arm A) or targeting only LN stations containing PET-positive nodes (arm B). LN stations were classified into echelon 1 (ipsilateral hilum), 2 (ipsilateral station 4 and 7), and 3 (rest of the mediastinum, contralateral hilum). The endpoints were overall survival (OS), progression-free survival (PFS), and freedom from local progression (FFLP). RESULTS The median follow-up time (95 % confidence interval [CI]) was 41.1 (33.8 - 50.4) months. Patients with a high absolute number of PET-positive LN stations had worse OS (hazard ratio [HR] = 1.09; 95 % CI 0.99 - 1.18; p = 0.05) and PFS (HR = 1.12; 95 % CI 1.04 - 1.20; p = 0.003), irrespective of treatment arm allocation. The prescribed RT dose to the LNs did not correlate with any of the endpoints when considering all patients. However, in patients in arm B (i.e., PET-based selective nodal irradiation), prescribed RT dose to each LN station correlated significantly with FFLP (HR=0.45; 95 % CI 0.24-0.85; p = 0.01). Furthermore, patients with involvement of echelon 3 LN stations had worse PFS (HR = 2.22; 95 % CI 1.16-4.28; p = 0.02), also irrespective of allocation. CONCLUSION Mediastinal tumor burden and lymphatic involvement patterns influence outcome in patients treated with definitive chemoradiotherapy for locally advanced NSCLC. Higher dose to LNs did not improve OS, but did improve FFLP in patients treated with PET-based dose-escalated RT.
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Affiliation(s)
- Eleni Gkika
- Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany; Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | | | - Jörg Sahlmann
- Institute of Medical Biometry and Statistics (IMBI), University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Simeon Ari Barth
- Department of Pediatrics, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Tanja Schimek-Jasch
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sonja Adebahr
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Markus Hecht
- Department of Radiotherapy and Radiation Oncology, Saarland University Medical Center, Homburg, Germany
| | - Matthias Miederer
- Department of Translational Imaging in Oncology, National Center for Tumor Diseases (NCT/UCC) Dresden: Faculty of Medicine and University Hospital Carl Gustav Carus, University of Technology Dresden (TUD), Dresden, Germany; German Cancer Research Center (DKFZ) Heidelberg, Germany; Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany
| | - Alexander Brose
- Department of Diagnostic and Interventional Radiology, University Hospital Giessen, Giessen, Germany
| | - Harald Binder
- Institute of Medical Biometry and Statistics (IMBI), University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jochem König
- Institute of Medical Biostatistics, Epidemiology, and Informatics, University Hospital Mainz, Mainz, Germany
| | - Anca-Ligia Grosu
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ursula Nestle
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany; Department of Radiation Oncology, Kliniken Maria Hilf, Mönchengladbach, Germany
| | - Andreas Rimner
- Department of Radiation Oncology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Richlitzki C, Wiesweg M, Metzenmacher M, Guberina N, Pöttgen C, Hautzel H, Eberhardt WEE, Darwiche K, Theegarten D, Aigner C, Bölükbas S, Schuler M, Stuschke M, Guberina M. C-reactive protein as robust laboratory value associated with prognosis in patients with stage III non-small cell lung cancer (NSCLC) treated with definitive radiochemotherapy. Sci Rep 2024; 14:13765. [PMID: 38877146 PMCID: PMC11178931 DOI: 10.1038/s41598-024-64302-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/06/2024] [Indexed: 06/16/2024] Open
Abstract
To evaluate the prognostic value of biomarkers from peripheral blood obtained as routine laboratory assessment for overall survival in a cohort of stage III non-small cell lung cancer (NSCLC) patients treated with definitive radiochemotherapy at a high-volume cancer center. Seven blood biomarkers from 160 patients treated with definitive radiochemotherapy for stage III NSCLC were analyzed throughout the course treatment. Parameters were preselected using univariable and multivariable proportional hazards analysis and were assessed for internal validity using leave-one-out cross validation. Cross validated classifiers including biomarkers in addition to important clinical parameters were compared with classifiers containing the clinical parameters alone. An increased C-reactive protein (CRP) value in the final week of radiotherapy was found as a prognostic factor for overall survival, both as a continuous (HR 1.099 (1.038-1.164), p < 0.0012) as well as categorical variable splitting data at the median value of 1.2 mg/dl (HR 2.214 (1.388-3.531), p < 0.0008). In the multivariable analysis, the CRP value-maintained significance with an HR of 1.105 (1.040-1.173) and p-value of 0.0012. The cross validated classifier using CRP at the end of radiotherapy in addition to clinical parameters separated equally sized high and low risk groups more distinctly than a classifier containing the clinical parameters alone (HR = 2.786 (95% CI 1.686-4.605) vs. HR = 2.287 (95% CI 1.407-3.718)). Thus, the CRP value at the end of radiation therapy has successfully passed the crucial cross-validation test. The presented data on CRP levels suggests that inflammatory markers may become increasingly important during definitive radiochemotherapy, particularly with the growing utilization of immunotherapy as a consolidation therapy for stage III NSCLC.
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Affiliation(s)
- Cedric Richlitzki
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
- Department of Radiotherapy, West German Cancer Center, University Hospital Essen, Essen, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - Marcel Wiesweg
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany
- Division of Thoracic Oncology, University Medicine Essen - Ruhrlandklinik, Essen, Germany
| | - Martin Metzenmacher
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany
- Division of Thoracic Oncology, University Medicine Essen - Ruhrlandklinik, Essen, Germany
| | - Nika Guberina
- Department of Radiotherapy, West German Cancer Center, University Hospital Essen, Essen, Germany
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Christoph Pöttgen
- Department of Radiotherapy, West German Cancer Center, University Hospital Essen, Essen, Germany
- National Center for Tumor Diseases (NCT) West, Essen, Germany
| | - Hubertus Hautzel
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Wilfried E E Eberhardt
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany
| | - Kaid Darwiche
- Department of Pulmonary Medicine, Section of Interventional Pneumology, West German Lung Transplantation Center, University Medicine Essen - Ruhrlandklinik, Essen, Germany
| | - Dirk Theegarten
- Institute of Pathology, University Hospital Essen, Essen, Germany
| | - Clemens Aigner
- Department of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Servet Bölükbas
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- Department of Thoracic Surgery, Medical Faculty, West German Cancer Center, University Hospital Essen, Ruhrlandklinik, Tueschner Weg 40, 45239, Essen, Germany
| | - Martin Schuler
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany
- Division of Thoracic Oncology, University Medicine Essen - Ruhrlandklinik, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Martin Stuschke
- Department of Radiotherapy, West German Cancer Center, University Hospital Essen, Essen, Germany
- National Center for Tumor Diseases (NCT) West, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Maja Guberina
- Department of Radiotherapy, West German Cancer Center, University Hospital Essen, Essen, Germany.
- National Center for Tumor Diseases (NCT) West, Essen, Germany.
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany.
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Kersting D, Sandach P, Sraieb M, Wiesweg M, Metzenmacher M, Darwiche K, Oezkan F, Bölükbas S, Stuschke M, Umutlu L, Nader M, Hamacher R, Fendler WP, Wienker J, Eberhardt WEE, Schuler M, Herrmann K, Hautzel H. 68Ga-SSO-120 PET for Initial Staging of Small Cell Lung Cancer Patients: A Single-Center Retrospective Study. J Nucl Med 2023; 64:1540-1549. [PMID: 37474272 DOI: 10.2967/jnumed.123.265664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/24/2023] [Indexed: 07/22/2023] Open
Abstract
PET imaging using the somatostatin receptor 2 (SSTR2) antagonist satoreotide trizoxetan (SSO-120, previously OPS-202) could offer accurate tumor detection and screening for SSTR2-antagonist radionuclide therapy in patients with SSTR2-expressing small cell lung cancer (SCLC). The aim of this single-center study was to investigate tumor uptake and detection rates of 68Ga-SSO-120 in comparison to 18F-FDG PET in the initial staging of SCLC patients. Methods: Patients with newly diagnosed SCLC who underwent additional whole-body 68Ga-SSO-120 PET/CT during the initial diagnostic workup were retrospectively included. The mean administered activity was 139 MBq, and the mean uptake time was 60 min. Gold-standard staging 18F-FDG PET/CT was evaluated if available within 2 wk before or after 68Ga-SSO-120 PET if morphologic differences in CT images were absent. 68Ga-SSO-120- or 18F-FDG-positive lesions were reported in 7 anatomic regions (primary tumor, thoracic lymph node metastases, and distant metastases including pleural, contralateral pulmonary, liver, bone, and other) according to the TNM classification for lung cancer (eighth edition). Consensus TNM staging (derived from CT, endobronchial ultrasound-guided transbronchial needle aspiration, PET, and brain MRI) by a clinical tumor board served as the reference standard. Results: Thirty-one patients were included, 12 with limited and 19 with extensive disease according to the Veterans Administration Lung Study Group classification. 68Ga-SSO-120-positive tumor was detected in all patients (100%) and in 90 of the 217 evaluated regions (41.5%). Thirteen patients (42.0%) had intense average 68Ga-SSO-120 uptake (region-based mean SUVmax ≥ 10); 28 patients (90.3%) had average 68Ga-SSO-120 uptake greater than liver uptake (region-based mean peak tumor-to-liver ratio > 1). In 25 patients with evaluable 18F-FDG PET, primary tumor, thoracic lymph node metastases, and distant metastases were detected in 100%, 92%, and 64%, respectively, of all investigated patients by 68Ga-SSO-120 and in 100%, 92%, and 56%, respectively, by 18F-FDG PET. 68Ga-SSO-120 PET detected additional contralateral lymph node, liver, and brain metastases in 1, 1, and 2 patients, respectively (no histopathology available), and 18F-FDG PET detected additional contralateral lymph node metastases in 3 patients (1 confirmed, 1 systematic endobronchial ultrasound-guided transbronchial needle aspiration-negative, and 1 without available histopathology). None of these differences altered Veterans Administration Lung Study Group staging. The region-based monotonic correlation between 68Ga-SSO-120 and 18F-FDG uptake was low (Spearman ρ = 0.26-0.33). Conclusion: 68Ga-SSO-120 PET offers high diagnostic precision with comparable detection rates and additional complementary information to the gold standard, 18F-FDG PET. Consistent uptake in most patients warrants exploration of SSTR2-directed radionuclide therapy.
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Affiliation(s)
- David Kersting
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany;
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
| | - Patrick Sandach
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
| | - Miriam Sraieb
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
| | - Marcel Wiesweg
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Martin Metzenmacher
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Kaid Darwiche
- Department of Pulmonary Medicine, Section of Interventional Pulmonology, West German Cancer Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
| | - Filiz Oezkan
- Department of Pulmonary Medicine, Section of Interventional Pulmonology, West German Cancer Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
| | - Servet Bölükbas
- Department of Thoracic Surgery and Thoracic Endoscopy, West German Cancer Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
| | - Martin Stuschke
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Department of Radiotherapy, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Lale Umutlu
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany; and
| | - Michael Nader
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
| | - Rainer Hamacher
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Wolfgang P Fendler
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
| | - Johannes Wienker
- Department of Pulmonary Medicine, Section of Interventional Pulmonology, West German Cancer Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
- Division of Thoracic Oncology, West German Lung Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
| | - Wilfried E E Eberhardt
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Division of Thoracic Oncology, West German Lung Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
| | - Martin Schuler
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Division of Thoracic Oncology, West German Lung Center, University Medicine Essen-Ruhrlandklinik, University of Duisburg-Essen, Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
| | - Hubertus Hautzel
- Department of Nuclear Medicine, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium, Partner Site University Hospital Essen, Essen, Germany
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Prediction of malignant lymph nodes in NSCLC by machine-learning classifiers using EBUS-TBNA and PET/CT. Sci Rep 2022; 12:17511. [PMID: 36266403 PMCID: PMC9584941 DOI: 10.1038/s41598-022-21637-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 09/29/2022] [Indexed: 01/12/2023] Open
Abstract
Accurate determination of lymph-node (LN) metastases is a prerequisite for high precision radiotherapy. The primary aim is to characterise the performance of PET/CT-based machine-learning classifiers to predict LN-involvement by endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in stage-III NSCLC. Prediction models for LN-positivity based on [18F]FDG-PET/CT features were built using logistic regression and machine-learning models random forest (RF) and multilayer perceptron neural network (MLP) for stage-III NSCLC before radiochemotherapy. A total of 675 LN-stations were sampled in 180 patients. The logistic and RF models identified SUVmax, the short-axis LN-diameter and the echelon of the considered LN among the most important parameters for EBUS-positivity. Adjusting the sensitivity of machine-learning classifiers to that of the expert-rater of 94.5%, MLP (P = 0.0061) and RF models (P = 0.038) showed lower misclassification rates (MCR) than the standard-report, weighting false positives and false negatives equally. Increasing the sensitivity of classifiers from 94.5 to 99.3% resulted in increase of MCR from 13.3/14.5 to 29.8/34.2% for MLP/RF, respectively. PET/CT-based machine-learning classifiers can achieve a high sensitivity (94.5%) to detect EBUS-positive LNs at a low misclassification rate. As the specificity decreases rapidly above that level, a combined test of a PET/CT-based MLP/RF classifier and EBUS-TBNA is recommended for radiation target volume definition.
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[ 68Ga]FAPI-PET/CT for radiation therapy planning in biliary tract, pancreatic ductal adeno-, and adenoidcystic carcinomas. Sci Rep 2022; 12:16261. [PMID: 36171444 PMCID: PMC9519639 DOI: 10.1038/s41598-022-20447-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 09/13/2022] [Indexed: 11/08/2022] Open
Abstract
Biliary-tract-carcinomas (BTC), pancreatic-ductal-adenocarcinomas (PDAC) and adenoidcystic-carcinomas (AC) have in common that they are traditionally treated with large clinical-target-volumes (CTV). The aim of this study is to examine the impact of pretreatment-[68Ga]FAPI-PET/CT on target-volume-definition and posttreatment-[68Ga]FAPI-PET/CT-response-assessment for BTC-, PDAC- and AC-patients referred to radiation-therapy. All consecutive BTC-, PDAC-, and AC-patients who received pretreatment-[68Ga]FAPI-PET/CT±[18F]FDG-PET/CT were included from 01.01.2020 to 01.03.2022. MTV and SUVmax were separately generated based on [68Ga]FAPI- and [18F]FDG-PET/CT-images. A [68Ga]FAPI- and [18F]FDG-based-CTV was defined. Treatment-plans were compared. Treatment-response was reassessed by a second [68Ga]FAPI-PET/CT and [18F]FDG-PET/CT after treatment-completion. Intermodality comparison of lesion-to-background-ratios [SUVmax_lesion/SUVmean_background] for individual timepoints t1 and t2 revealed significant higher values for [68Ga]FAPI compared to [18F]FDG (t1, p = 0.008; t2, p = 0.005). Intermodality comparison of radiation-therapy-plans showed that [68Ga]FAPI-based planning resulted in D100% = 97.2% and V95% = 98.8% for the [18F]FDG-MTV. [18F]FDG-based-planning resulted in D100% = 35.9% and V95% = 78.1% for [68Ga]FAPI-MTV. [18F]FDG-based-planning resulted only in 2 patients in V95% > 95% for [68Ga]FAPI-MTV, and in 1 patient in D100% > 97% for [68Ga]FAPI-MTV. GTV-coverage in terms of V95% was 76.4% by [18F]FDG-based-planning and 99.5% by [68Ga]FAPI-based-planning. Pretreatment [68Ga]FAPI-PET/CT enhances radiation-treatment-planning in this particular group of patients. While perilesional and tumoral follow-up [18F]FDG-uptake behaved uniformly, perilesional and tumoral reaction may differ in follow-up [68Ga]FAPI-imaging. Complementary [68Ga]FAPI- and [18F]FDG-imaging enhance treatment-response-assessment.
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Wurstbauer K, Kazil M, Meinschad M, Pinter R, De Vries C, Clemens P, Kreuter C, Hernler T, Hitzl W, Cerkl P, Künzler T, De Vries A. Locally advanced NSCLC: a plea for sparing the ipsilateral normal lung-prospective, clinical trial with DART-bid (dose-differentiated accelerated radiation therapy, 1.8 Gy twice daily) by VMAT. Radiat Oncol 2022; 17:120. [PMID: 35799182 PMCID: PMC9264580 DOI: 10.1186/s13014-022-02083-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 06/14/2022] [Indexed: 11/10/2022] Open
Abstract
Background In radiation treatment of locally advanced non-small cell lung cancer (LA-NSCLC), ‘margins’ from internal target volumes to planning target volumes in the range of 12 to 23 mm are reported, and avoiding exposure of the contralateral lung is common practice. We investigated prospectively an approach with tight margins (7 mm) and maximal sparing of the ipsilateral normal lung. Mature results for the first endpoint (pneumonitis) and further toxicities are reported. Methods Primary tumors were treated by VMAT with 73.8–90.0 Gy in positive correlation to tumor volumes, nodes with 61.2 Gy, a restricted volume of nodes electively with 45 Gy. Fractional doses of 1.8 Gy bid, interval 8 h. Before radiotherapy, two cycles platin-based chemotherapy were given. 12 patients finished maintenance therapy with Durvalumab. Median follow up time for all patients is 19.4 months, for patients alive 27.0 months (3.4–66.5 months). Results 100 consecutive, unselected patients with LA-NSCLC in stages II through IVA were enrolled (UICC/AJCC, 8th edition). No acute grade 4/5 toxicity occurred. Pneumonitis grade 2 and 3 was observed in 12% and 2% of patients, respectively; lowering the risk of pneumonitis grade ≥ 2 in comparison to the largest study in the literature investigating pneumonitis in LA-NSCLC, is significant (p < 0.0006). Acute esophageal toxicity grade 1, 2 and 3 occurred in 12%, 57% and 3% of patients, respectively. Two patients showed late bronchial stricture/atelectasis grade 2. In two patients with lethal pulmonary haemorrhages a treatment correlation cannot be excluded. Median overall survival for all stage III patients, and for those with ‘RTOG 0617 inclusion criteria’ is 46.6 and 50.0 months, respectively. Conclusions Overall toxicity is low. In comparison to results in the literature, maximal sparing the ipsilateral normal lung lowers the risk for pneumonitis significantly. Trial registration Ethics committee of Vorarlberg, Austria; EK-0.04-105, Registered 04/09/2017—Retrospectively registered. http://www.ethikkommission-vorarlberg.at
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Affiliation(s)
- Karl Wurstbauer
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria.
| | - Margit Kazil
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria
| | - Marco Meinschad
- Academic Teaching Hospital, Institute of Medical Physics, Feldkirch, Austria
| | - Raoul Pinter
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria
| | - Catharina De Vries
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria
| | - Patrick Clemens
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria
| | - Christof Kreuter
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria
| | - Tamara Hernler
- Department for Pneumology, Academic Teaching Hospital, Hohenems, Austria
| | - Wolfgang Hitzl
- Team Biostatistics and Publication of Clincial Studies, FM&TT, Paracelsus Medical University, Salzburg, Austria
| | - Peter Cerkl
- Department for Pneumology, Academic Teaching Hospital, Hohenems, Austria
| | - Thomas Künzler
- Academic Teaching Hospital, Institute of Medical Physics, Feldkirch, Austria
| | - Alexander De Vries
- Department for Radiation Oncology, Academic Teaching Hospital, Carinagasse 47, 6800, Feldkirch, Austria
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Marshall T, Kalanjeri S, Almeida FA. Lung cancer staging, the established role of bronchoscopy. Curr Opin Pulm Med 2022; 28:17-30. [PMID: 34720099 DOI: 10.1097/mcp.0000000000000843] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE OF REVIEW Lung cancer is the leading cause of cancer-related deaths worldwide. In the absence of distant metastases, accurate mediastinal nodal staging determines treatment approaches to achieve most favourable outcomes for patients. Mediastinal staging differentiates N0/N1 disease from N2/N3 in surgical candidates. Likewise, presence of nodal involvement in nonsurgical candidates who are being considered for stereotactic body radiation therapy is also critical. This review article seeks to discuss the current options available for mediastinal staging in nonsmall cell lung cancer (NSCLC), particularly the role of bronchoscopy. RECENT FINDINGS Although several techniques are available to stage the mediastinum, bronchoscopy with EBUS-TBNA with or without EUS-FNA appears to be superior in most clinical situations based on its ability to concomitantly diagnose and stage at once, safety, accessibility to the widest array of lymph node stations, cost and low risk of complications. However, training and experience are required to achieve consistent diagnostic accuracy with EBUS-TBNA. SUMMARY EBUS-TBNA with or without EUS-FNA is considered the modality of choice in the diagnosis and staging of NSCLC in both surgical and nonsurgical candidates.
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Affiliation(s)
- Tanya Marshall
- Department of Internal Medicine, Cleveland Clinic Akron General, Akron, Ohio
| | - Satish Kalanjeri
- Pulmonary and Critical Care Medicine, Harry S. Truman Memorial Veterans Hospital
- Pulmonary and Critical Care Medicine, University of Missouri School of Medicine, Columbia, Missouri
| | - Francisco Aecio Almeida
- Department of Pulmonary Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
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