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Zhu Y, Cui Y, Zheng X, Zhao Y, Sun G. Small-cell lung cancer brain metastasis: From molecular mechanisms to diagnosis and treatment. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166557. [PMID: 36162624 DOI: 10.1016/j.bbadis.2022.166557] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/27/2022] [Accepted: 09/19/2022] [Indexed: 11/30/2022]
Abstract
Lung cancer is the most malignant human cancer worldwide, also with the highest incidence rate. However, small-cell lung cancer (SCLC) accounts for 14 % of all lung cancer cases. Approximately 10 % of patients with SCLC have brain metastasis at the time of diagnosis, which is the leading cause of death of patients with SCLC worldwide. The median overall survival is only 4.9 months, and a long-tern cure exists for patients with SCLC brain metastasis due to limited common therapeutic options. Recent studies have enhanced our understanding of the molecular mechanisms leading to meningeal metastasis, and multimodality treatments have brought new hopes for a better cure for the disease. This review aimed to offer an insight into the cellular processes of different metastatic stages of SCLC revealed by the established animal models, and into the major diagnostic methods of SCLC. Additionally, it provided in-depth information on the recent advances in SCLC treatments, and highlighted several new models and biomarkers with promises to improve the prognosis of SCLC.
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Affiliation(s)
- Yingze Zhu
- Department of Hebei Key Laboratory of Medical-industrial Integration Precision Medicine, School of Clinical Medicine, Affiliated Hospital, School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, China
| | - Yishuang Cui
- Department of Hebei Key Laboratory of Medical-industrial Integration Precision Medicine, School of Clinical Medicine, Affiliated Hospital, School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, China
| | - Xuan Zheng
- Department of Hebei Key Laboratory of Medical-industrial Integration Precision Medicine, School of Clinical Medicine, Affiliated Hospital, School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, China
| | - Yue Zhao
- Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Institute of Basic Medicine and Cancer of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China.
| | - Guogui Sun
- Department of Hebei Key Laboratory of Medical-industrial Integration Precision Medicine, School of Clinical Medicine, Affiliated Hospital, School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, China.
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Zhou W, Wang P, Ti X, Yin Y, Huang S, Yang Z, Li J, Chai G, Lyu B, Li Z, Zhou Y, Xiao F, Xu L, Shi M, Zhao L. Sequential Hypofractionated versus Concurrent Twice-Daily Radiotherapy for Limited-Stage Small-Cell Lung Cancer: A Propensity Score-Matched Analysis. Cancers (Basel) 2022; 14:cancers14163920. [PMID: 36010913 PMCID: PMC9406024 DOI: 10.3390/cancers14163920] [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: 07/03/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Background: As there are no randomized trials comparing twice-daily with sequential hypofractionated (sequential hypo) radiotherapy regimens for limited-stage small-cell lung cancer (LS-SCLC). This study aimed to compare these two regimens for LS-SCLC by propensity score-matched analysis (PSM). Methods: We retrospectively analyzed 108 LS-SCLC patients between January 2015 and July 2019. All patients received concurrent twice-daily or sequential hypo radiotherapy. The survival, failure patterns, and toxicities were evaluated before and after PSM. Results: Before PSM, multivariate analysis showed that patients treated with sequential hypo had a significantly better overall survival (OS) and distant metastasis-free survival (DMFS) (HR = 0.353, p = 0.009; HR = 0.483, p = 0.039, respectively). Total radiotherapy time ≥ 24 days and stage III (HR = 2.454, p = 0.004; HR = 2.310, p = 0.004, respectively) were poor prognostic indicators for OS. Patients with a total radiotherapy time ≥ 24 days and N2−3 were more likely to recur than others (HR = 1.774, p = 0.048; HR = 2.369, p = 0.047, respectively). N2−3 (HR = 3.032, p = 0.011) was a poor prognostic indicator for DMFS. After PSM, being aged ≥65 years was associated with poorer OS, relapse-free survival (RFS) and DMFS (p < 0.05). A total radiotherapy time of ≥24 days was a poor prognostic indicator for OS and RFS (HR = 2.671, p = 0.046; HR = 2.370, p = 0.054, respectively). Although there was no significant difference, the patients in the sequential hypo group had a trend towards a better OS. The failure pattern between the two groups showed no difference. More patients had grade 1−2 esophagitis in the twice-daily group (p = 0.001). Conclusions: After propensity matching, no difference was shown in survival and failure. The sequential hypo schedule was associated with comparable survival and less toxicity and may be used as an alternative to concurrent twice-daily regimens.
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Affiliation(s)
- Wei Zhou
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Pang Wang
- Out-Patient Department, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Xinyu Ti
- Department of Pulmonary Diseases and Critical Care Medicine, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Yutian Yin
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Shigao Huang
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Zhi Yang
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Jie Li
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Guangjin Chai
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Bo Lyu
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Zhaohui Li
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Yan Zhou
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Feng Xiao
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Lin Xu
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
| | - Mei Shi
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
- Correspondence: (M.S.); (L.Z.)
| | - Lina Zhao
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi’an 710032, China
- Correspondence: (M.S.); (L.Z.)
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Pan T, Li X, Zhao B, Zhang C, Rong X, Qin C, Wen G, Wu W, Wang H, Lu K, Zhou H, Peng Y. Radiotherapy-Related Neurologic Complications in Patients with Nasopharyngeal Carcinoma: A Multicenter Epidemiologic Study in Southern China. Cancer Epidemiol Biomarkers Prev 2022; 31:1119-1129. [PMID: 35391491 DOI: 10.1158/1055-9965.epi-21-0953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/16/2021] [Accepted: 02/21/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND We aim at describing the incidence, potential predisposing factors, and progression of major radiotherapy-related neurologic complications (RRNC) in nasopharyngeal carcinoma (NPC)-endemic regions, especially southern China. METHODS We performed a multicenter longitudinal retrospective study with clinical follow-ups in 22,302 patients with post-radiotherapy NPC between January 2003 and June 2017 covering three major residential areas. Epidemiology, potential predisposing/protective factors, clinicopathologic progression, and survival conditions of each RRNC were separately recorded and analyzed on the basis of their related clinical, radiologic, and laboratory parameters. RESULTS 949 new cases of RRNCs occurred among the 22,302 patients with post-radiotherapy NPC during 101,714 person years' follow-up, which is equal to an incidence density rate of 9.3 new cases per 1000 person year. Radiation-induced cranial nerve palsy showed the highest incidence (2.68%, 597/22,302) with the earliest onset (median latency, 4.45 years) as well. Patients benefited from intensity-modulated radiotherapy (IMRT) over conventional radiotherapy (CRT) in both overall survival (median survival 13.2 years for IMRT vs. 8.3 years for CRT) and RRNC-free survival (except for epilepsy and cranial nerve palsy). Causes of death varied substantially between patients with or without RRNCs. CONCLUSIONS Our study indicates a non-negligible incidence of RRNC spectrum in southern China in the past ten years. IMRT is one of the most significant protectors against development and progression of RRNCs. IMPACT Our findings support the hypothesis that patients with NPC with preexisting predispositions would receive long-term benefits from IMRT and other dose-related modulations (like hyperfractionation and dose conformation).
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Affiliation(s)
- Tong Pan
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiangping Li
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bin Zhao
- Department of Neurology, Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| | - Chengguo Zhang
- Department of Neurology, First People's Hospital of Foshan City, Foshan, China
| | - Xiaoming Rong
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chao Qin
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Guangxi, China
| | - Guoqiang Wen
- Department of Neurology, Hainan General Hospital, Hainan, China
| | - Wenjun Wu
- Department of Neurology, the People's Hospital of Zhongshan City, Shanghai, China
| | - Hongxuan Wang
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kui Lu
- Department of Neurology, the People's Hospital of Zhongshan City, Shanghai, China
| | - Haihong Zhou
- Department of Neurology, Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| | - Ying Peng
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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Sager O, Dincoglan F, Demiral S, Gamsiz H, Uysal B, Ozcan F, Colak O, Gumustepe E, Elcim Y, Gundem E, Dirican B, Beyzadeoglu M. Optimal timing of thoracic irradiation for limited stage small cell lung cancer: Current evidence and future prospects. World J Clin Oncol 2022; 13:116-124. [PMID: 35316927 PMCID: PMC8894269 DOI: 10.5306/wjco.v13.i2.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/21/2021] [Accepted: 01/10/2022] [Indexed: 02/06/2023] Open
Abstract
Lung cancer is a global health concern as the leading cause of cancer related mortality worldwide. Small cell lung cancer (SCLC) poses a formidable challenge to the treating physicians with the worst prognosis among all lung cancers. However, limited stage SCLC (LS-SCLC) has a relatively better outcome with multimodality management. Efforts have been focused on optimal integration of treatment modalities to achieve an improved therapeutic ratio for patients with LS-SCLC. While chemotherapy and thoracic radiation therapy (TRT) are primary components of initial management for LS-SCLC, there is no consensus on optimal timing of TRT. Within this context, we herein provide a concise overview of current evidence and future prospects regarding the optimal timing of thoracic irradiation for LS-SCLC in light of the literature.
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Affiliation(s)
- Omer Sager
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Ferrat Dincoglan
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Selcuk Demiral
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Hakan Gamsiz
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Bora Uysal
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Fatih Ozcan
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Onurhan Colak
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Esra Gumustepe
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Yelda Elcim
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Esin Gundem
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Bahar Dirican
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
| | - Murat Beyzadeoglu
- Gulhane Medical Faculty Department of Radiation Oncology, University of Health Sciences, Ankara 0090, Turkey
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Zhou B, Li Q, Qin L, Li Z, Jin K, Dai J, Zhu Y, Yang Y, Jabbour SK, Tartarone A, Ng CSH, Navarro A, Pompili C, Jiang G. Octogenarians may benefit from stage-specific small cell lung cancer treatment. Transl Lung Cancer Res 2021; 10:3973-3982. [PMID: 34858785 PMCID: PMC8577968 DOI: 10.21037/tlcr-21-839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/22/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Our study investigates treatment profiles in octogenarian patients with small cell lung cancer (SCLC) and assesses each treatment's role in a stage-specific manner. METHODS Patient data from individuals with SCLC aged 80 years and older between 1988 and 2015 in the Surveillance, Epidemiology, and End Results Program (SEER) database were extracted. Cancer-specific survival (CSS) between patients with no treatment and different treatment groups were compared by the Kaplan-Meier method, with stratifications by stage. Cox Proportional Hazard model further identified independent prognostic factors. RESULTS A total of 7,290 patients were included in this study. Notably, 3,358 (46.1%) patients did not receive active treatment. Compared with the no active treatment group, the CSS of patients who received treatment was significantly improved (median 6 vs. 0 months, P<0.001) and further validated in stage subgroups. Chemotherapy combined with local therapy was associated with the best CSS in regional and distant disease stages, with the hazard ratios (HR) and 95% confidence intervals (CI) being 0.30 (0.26-0.34) and 0.27 (0.25-0.30), respectively. Local therapy only appeared to confer better oncological outcomes (HR =0.33; 95% CI: 0.25-0.42) than chemotherapy only (HR =0.37; 95% CI: 0.29-0.47) in the localized disease stage. CONCLUSIONS Although nearly half of octogenarians with SCLC did not receive active treatment in the real clinical setting, these patients may benefit from treatment. Chemotherapy combined with local therapy may provide the best treatment choice in octogenarians with advanced SCLC, while local therapy appears to play a more critical role in treating those with early-stage disease.
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Affiliation(s)
- Bin Zhou
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Qiuyuan Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Linlin Qin
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Zhao Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Kaiqi Jin
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Jie Dai
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Yuming Zhu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Yang Yang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Salma K. Jabbour
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Alfredo Tartarone
- Division of Medical Oncology, Department of Onco-Hematology, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture (PZ), Italy
| | - Calvin S. H. Ng
- Division of Cardiothoracic Surgery, Department of Surgery, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong, China
| | - Alfons Navarro
- Molecular Oncology and Embryology Laboratory, Human Anatomy Unit, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Cecilia Pompili
- Department of Thoracic Surgery, University of Leeds, Section of Patient Centred Outcomes Research, Leeds Institute for Medical Research at St. James’s, St. James’ Institute of Oncology, Leeds, UK
| | - Gening Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
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Couñago F, de la Pinta C, Gonzalo S, Fernández C, Almendros P, Calvo P, Taboada B, Gómez-Caamaño A, Guerra JLL, Chust M, González Ferreira JA, Álvarez González A, Casas F. GOECP/SEOR radiotherapy guidelines for small-cell lung cancer. World J Clin Oncol 2021; 12:115-143. [PMID: 33767969 PMCID: PMC7968106 DOI: 10.5306/wjco.v12.i3.115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/25/2021] [Accepted: 02/12/2021] [Indexed: 02/06/2023] Open
Abstract
Small cell lung cancer (SCLC) accounts for approximately 20% of all lung cancers. The main treatment is chemotherapy (Ch). However, the addition of radiotherapy significantly improves overall survival (OS) in patients with non-metastatic SCLC and in those with metastatic SCLC who respond to Ch. Prophylactic cranial irradiation reduces the risk of brain metastases and improves OS in both metastatic and non-metastatic patients. The 5-year OS rate in patients with limited-stage disease (non-metastatic) is slightly higher than 30%, but less than 5% in patients with extensive-stage disease (metastatic). The present clinical guidelines were developed by Spanish radiation oncologists on behalf of the Oncologic Group for the Study of Lung Cancer/Spanish Society of Radiation Oncology to provide a current review of the diagnosis, planning, and treatment of SCLC. These guidelines emphasise treatment fields, radiation techniques, fractionation, concomitant treatment, and the optimal timing of Ch and radiotherapy. Finally, we discuss the main indications for reirradiation in local recurrence.
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Affiliation(s)
- Felipe Couñago
- Department of Radiation Oncology, Hospital Universitario Quirónsalud Madrid, Hospital La Luz, Universidad Europea de Madrid, Madrid 28223, Madrid, Spain
| | - Carolina de la Pinta
- Department of Radiation Oncology, Hospital Universitario Ramón y Cajal, Madrid 28034, Spain
| | - Susana Gonzalo
- Department of Radiation Oncology, Hospital Universitario La Princesa, Madrid 28006, Spain
| | - Castalia Fernández
- Department of Radiation Oncology, GenesisCare Madrid, Madrid 28043, Spain
| | - Piedad Almendros
- Department of Radiation Oncology, Hospital General Universitario, Valencia 46014, Spain
| | - Patricia Calvo
- Department of Radiation Oncology, Hospital Clínico Universitario Santiago de Compostela, Santiago de Compostela 15706, Spain
| | - Begoña Taboada
- Department of Radiation Oncology, Hospital Clínico Universitario Santiago de Compostela, Santiago de Compostela 15706, Spain
| | - Antonio Gómez-Caamaño
- Department of Radiation Oncology, Hospital Clínico Universitario Santiago de Compostela, Santiago de Compostela 15706, Spain
| | - José Luis López Guerra
- Department of Radiation Oncology, Hospital Universitario Virgen del Rocío, Sevilla 41013, Spain
| | - Marisa Chust
- Department of Radiation Oncology, Fundación Instituto Valenciano de Oncología, Valencia 46009, Spain
| | | | | | - Francesc Casas
- Department of Radiation Oncology, Thoracic Unit, Hospital Clinic, Barcelona 08036, Spain
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Tjong MC, Mak DY, Shahi J, Li GJ, Chen H, Louie AV. Current Management and Progress in Radiotherapy for Small Cell Lung Cancer. Front Oncol 2020; 10:1146. [PMID: 32760673 PMCID: PMC7372592 DOI: 10.3389/fonc.2020.01146] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/08/2020] [Indexed: 12/17/2022] Open
Abstract
Radiotherapy (RT) and chemotherapy continue to be widely utilized in small cell lung cancer (SCLC) management. In most limited stage (LS)-SCLC cases, the standard initial therapy remains concurrent chemoradiotherapy (CRT), typically with an etoposide and platinum-based regimen. Hyperfractionated twice daily (BID) RT remains the standard of care, though conventional daily (QD) RT is now a viable alternative supported by randomized evidence. In LS-SCLC patients who experienced good response to CRT, prophylactic cranial irradiation (PCI) remains the standard of care. Brain imaging, ideally with MRI, should be performed prior to PCI to screen for clinically apparent brain metastases that may require a higher dose of cranial irradiation. Platinum doublet chemotherapy alone is the historic standard initial therapy in extensive stage (ES)-SCLC. Addition of immunotherapy such as atezolizumab and durvalumab to chemotherapy is now recommended after their benefits were demonstrated in recent trials. In patients with response to chemotherapy, consolidation thoracic RT and PCI could be considered, though with caveats. Emergence of hippocampal avoidance cranial irradiation and SRS in SCLC patients may supplant whole cranial irradiation as future standards of care. Incorporation of novel systemic therapies such as immunotherapies has changed the treatment paradigm and overall outlook of patients with SCLC. This narrative review summarizes the current state, ongoing trials, and future directions of radiotherapy in management of SCLC.
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Affiliation(s)
- Michael C Tjong
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - David Y Mak
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Jeevin Shahi
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - George J Li
- Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Hanbo Chen
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Alexander V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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Topkan E, Ozdemir Y, Kucuk A, Besen AA, Mertsoylu H, Sezer A, Selek U. Significance of overall concurrent chemoradiotherapy duration on survival outcomes of stage IIIB/C non-small-cell lung carcinoma patients: Analysis of 956 patients. PLoS One 2019; 14:e0218627. [PMID: 31329602 PMCID: PMC6645460 DOI: 10.1371/journal.pone.0218627] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 06/05/2019] [Indexed: 12/20/2022] Open
Abstract
Background To investigate the detrimental effects of prolonged overall radiotherapy duration (ORTD) on survival outcomes of stage IIIB/C NSCLC patients treated with concurrent chemoradiotherapy (C-CRT) Methods The study cohort consisted of 956 patients who underwent C-CRT for stage IIIB/C NSCLC. Primary endpoint was the association between the ORTD and overall survival (OS) with locoregional progression-free survival (LRPFS) and PFS comprising the secondary endpoints. Receiver operating characteristic (ROC) curve analysis was utilized for accessibility of the cut-off that interacts with survival outcomes. Multivariate Cox model was utilized to identify the independent associates of survival outcomes. Results The ROC curve analysis exhibited significance at 49 days of ORTD cut-off that dichotomized patients into ORTD<50 versus ORTD≥50 days groups for OS [area under the curve (AUC): 82.8%; sensitivity: 81.1%; specificity: 74.8%], LRPFS (AUC: 91.9%; sensitivity: 90.6%; specificity: 76.3%), and PFS (AUC: 76.1%; sensitivity: 72.4%; specificity: 68.2%), respectively. Accordingly, ORTD≥50 days group had significantly shorter median OS (P<0.001), LRPFS (P<0.001), and PFS (P<0.001); and 10-year actuarial locoregional control (P<0.001) and distant metastases-free (P<0.011) rates than the ORTD<50 days group. The ORTD retained its significant association with survival outcomes at multivariate analyses independent of the other favorable covariates (p<0.001, for OS, LRPFS, and PFS): Stage IIIB disease (versus IIIC), lymph node bulk <2 cm (versus ≥2 cm), and 2–3 chemotherapy cycles (versus 1). The higher sensitivity for LRPFS (90.6%) than PFS (72.4%) on ROC curve analysis suggested the prolonged ORTD-induced decrements in locoregional control rates as the major cause of the poor survival outcomes. Conclusions Longer ORTD beyond ≥50 days was associated with significantly poorer OS, LRPFS and PFS outcomes, where reduced locoregional control rates appeared to be the main causative.
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Affiliation(s)
- Erkan Topkan
- Baskent University Medical Faculty, Department of Radiation Oncology, Adana, Turkey
- * E-mail:
| | - Yurday Ozdemir
- Baskent University Medical Faculty, Department of Radiation Oncology, Adana, Turkey
| | - Ahmet Kucuk
- Mersin City Hospital, Radiation Oncology Clinics, Mersin, Turkey
| | - Ali Ayberk Besen
- Baskent University Medical Faculty, Department of Medical Oncology, Adana, Turkey
| | - Huseyin Mertsoylu
- Baskent University Medical Faculty, Department of Medical Oncology, Adana, Turkey
| | - Ahmet Sezer
- Baskent University Medical Faculty, Department of Medical Oncology, Adana, Turkey
| | - Ugur Selek
- Koc University, School of Medicine, Department of Radiation Oncology, Istanbul, Turkey
- Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
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9
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Zhao S, Zhou T, Ma S, Zhao Y, Zhan J, Fang W, Yang Y, Hou X, Zhang Z, Chen G, Zhang Y, Huang Y, Zhang L. Effects of thoracic radiotherapy timing and duration on progression-free survival in limited-stage small cell lung cancer. Cancer Med 2018; 7:4208-4216. [PMID: 30019533 PMCID: PMC6143999 DOI: 10.1002/cam4.1616] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 05/23/2018] [Accepted: 05/25/2018] [Indexed: 12/22/2022] Open
Abstract
Concurrent chemoradiotherapy (CRT) has been recommended and applied widely as the standard treatment for limited‐stage small cell lung cancer (LS‐SCLC). However, controversies remain regarding the optimal timing and treatment duration of thoracic radiotherapy (TRT), and their effects on patient survival. To evaluate prognostic values of TRT timing and duration on progression‐free survival (PFS) in LS‐SCLC and their dependence on TRT fractionation and clinicopathological characteristics, we retrospectively analyzed 197 LS‐SCLC patients receiving CRT from 2000 to 2016 at Sun Yat‐sen University Cancer Center. Based on the optimal cut‐off values of TRT timing and duration generated by Cutoff Finder, patients were divided into early TRT/late TRT group and short TRT/long TRT group respectively. Univariate and multivariate Cox analysis were performed to assess correlations of TRT timing, duration, fractionation, and clinicopathological characteristics with PFS. Univariate analysis revealed that early‐initiated TRT (P = 2.54 × 10−4) and short TRT (P = .001) significantly correlated with longer PFS. Their PFS benefits persisted in patients receiving hyperfractionated TRT and etoposide‐cisplatin (EP) chemotherapy, but were less prominent in those receiving once‐daily TRT and non‐EP chemotherapy. Multivariate analysis further identified early initiated TRT (P = .004) and short TRT (P = .017) as independent prognostic factors for longer PFS in LS‐SCLC. Our study confirmed that early‐initiated TRT and short TRT had positive prognostic roles in LS‐SCLC, especially in patients receiving hyperfractionated TRT and etoposide‐cisplatin chemotherapy. TRT fractionation was not an independent prognostic factor in LS‐SCLC.
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Affiliation(s)
- Shen Zhao
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China.,Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ting Zhou
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Shuxiang Ma
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yuanyuan Zhao
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jianhua Zhan
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wenfeng Fang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yunpeng Yang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xue Hou
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zhonghan Zhang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Gang Chen
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yaxiong Zhang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yan Huang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Li Zhang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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