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Tian X, Fu K, Huang X, Zou H, Shi N, Li J, Bao Y, He S, Lv J. Ferroptosis in the adjuvant treatment of lung cancer-the potential of selected botanical drugs and isolated metabolites. Front Pharmacol 2024; 15:1430561. [PMID: 39193342 PMCID: PMC11347298 DOI: 10.3389/fphar.2024.1430561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 07/26/2024] [Indexed: 08/29/2024] Open
Abstract
Ferroptosis represents a distinct form of cell death that is not associated with necrosis, autophagy, apoptosis, or pyroptosis. It is characterised by intracellular iron-dependent lipid peroxidation. The current literature indicates that a number of botanical drugs and isolated metabolites can modulate ferroptosis, thereby exerting inhibitory effects on lung cancer cells or animal models. The aim of this review is to elucidate the mechanisms through which botanical drugs and isolated metabolites regulate ferroptosis in the context of lung cancer, thereby providing potential insights into lung cancer treatment. It is crucial to highlight that these preclinical findings should not be interpreted as evidence that these treatments can be immediately translated into clinical applications. In the future, we will continue to study the pharmacology, pharmacokinetics and toxicology of these drugs, as well as evaluating their efficacy and safety in clinical trials, with the aim of providing new approaches to the development of new agents for the treatment of lung cancer.
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Affiliation(s)
- Xiaoyan Tian
- The First Clinical Institute, Zunyi Medical University, Zunyi, Guizhou, China
| | - Kunling Fu
- The First Clinical Institute, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xuemin Huang
- The First Clinical Institute, Zunyi Medical University, Zunyi, Guizhou, China
| | - Haiyan Zou
- The First Clinical Institute, Zunyi Medical University, Zunyi, Guizhou, China
| | - Nianmei Shi
- The First Clinical Institute, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jiayang Li
- Office of Drug Clinical Trial Institution, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yuxiang Bao
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Sisi He
- Department of Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Junyuan Lv
- The First Clinical Institute, Zunyi Medical University, Zunyi, Guizhou, China
- Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
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Quashie EE, Li XA, Prior P, Awan M, Schultz C, Tai A. Obtaining organ-specific radiobiological parameters from clinical data for radiation therapy planning of head and neck cancers. Phys Med Biol 2023; 68:245015. [PMID: 37903437 DOI: 10.1088/1361-6560/ad07f5] [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: 06/20/2023] [Accepted: 10/30/2023] [Indexed: 11/01/2023]
Abstract
Objective.Different radiation therapy (RT) strategies, e.g. conventional fractionation RT (CFRT), hypofractionation RT (HFRT), stereotactic body RT (SBRT), adaptive RT, and re-irradiation are often used to treat head and neck (HN) cancers. Combining and/or comparing these strategies requires calculating biological effective dose (BED). The purpose of this study is to develop a practical process to estimate organ-specific radiobiologic model parameters that may be used for BED calculations in individualized RT planning for HN cancers.Approach.Clinical dose constraint data for CFRT, HFRT and SBRT for 5 organs at risk (OARs) namely spinal cord, brainstem, brachial plexus, optic pathway, and esophagus obtained from literature were analyzed. These clinical data correspond to a particular endpoint. The linear-quadratic (LQ) and linear-quadratic-linear (LQ-L) models were used to fit these clinical data and extract relevant model parameters (alpha/beta ratio, gamma/alpha,dTand BED) from the iso-effective curve. The dose constraints in terms of equivalent physical dose in 2 Gy-fraction (EQD2) were calculated using the obtained parameters.Main results.The LQ-L and LQ models fitted clinical data well from the CFRT to SBRT with the LQ-L representing a better fit for most of the OARs. The alpha/beta values for LQ-L (LQ) were found to be 2.72 (2.11) Gy, 0.55 (0.30) Gy, 2.82 (2.90) Gy, 6.57 (3.86) Gy, 5.38 (4.71) Gy, and the dose constraint EQD2 were 55.91 (54.90) Gy, 57.35 (56.79) Gy, 57.54 (56.35) Gy, 60.13 (59.72) Gy and 65.66 (64.50) Gy for spinal cord, optic pathway, brainstem, brachial plexus, and esophagus, respectively. Additional two LQ-L parametersdTwere 5.24 Gy, 5.09 Gy, 7.00 Gy, 5.23 Gy, and 6.16 Gy, and gamma/alpha were 7.91, 34.02, 8.67, 5.62 and 4.95.Significance.A practical process was developed to extract organ-specific radiobiological model parameters from clinical data. The obtained parameters can be used for biologically based radiation planning such as calculating dose constraints of different fractionation regimens.
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Affiliation(s)
- Edwin E Quashie
- Department of Radiation Oncology, Medical College of Wisconsin, WI 53226, United States of America
- Department of Radiation Oncology, Brown University School of Medicine, Providence, RI 02903, United States of America
- Department of Radiation Oncology, Rhode Island Hospital, Providence, RI 02903, United States of America
| | - X Allen Li
- Department of Radiation Oncology, Medical College of Wisconsin, WI 53226, United States of America
| | - Phillip Prior
- Department of Radiation Oncology, Medical College of Wisconsin, WI 53226, United States of America
| | - Musaddiq Awan
- Department of Radiation Oncology, Medical College of Wisconsin, WI 53226, United States of America
| | - Christopher Schultz
- Department of Radiation Oncology, Medical College of Wisconsin, WI 53226, United States of America
| | - An Tai
- Department of Radiation Oncology, Medical College of Wisconsin, WI 53226, United States of America
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Zhao X, Zhang R. Feasibility of Four-dimensional Adaptation of Volumetric Modulated Arc Therapy Based on Volumetric Modulated Arc Therapy-computed Tomography. J Med Phys 2023; 48:154-160. [PMID: 37576092 PMCID: PMC10419754 DOI: 10.4103/jmp.jmp_24_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/29/2023] [Accepted: 04/27/2023] [Indexed: 08/15/2023] Open
Abstract
Purpose Volumetric modulated arc therapy (VMAT) has been increasingly used for cancer patients due to the fast delivery and improved dose conformity. Adaptive radiotherapy (ART) can significantly decrease dose to normal tissues and allow for dose escalation. However, current imaging techniques cannot provide four-dimensional (4D) patient anatomy or dose information during VMAT, which is critical for ART that involves respiratory motion. A novel imaging tool named VMAT-computed tomography (VMAT-CT) has the potential to reveal intra-fractional patient information. The goal of this study was to evaluate the feasibility of 4D adaptive VMAT based on 4D VMAT-CT. Materials and Methods A commercial QUASAR respiratory phantom and an in-house deformable lung phantom were used in this study, and lung VMAT plans, including 4D union plan and 4D ART plan, were generated for the phantoms. A real lung patient's plan was also used in this feasibility study. ART plans based on 4D VMAT-CT were created for the phantoms and the real patient when planning goals were not met. Dose escalation plan based on 4D VMAT-CT was also created for the real patient. Results Planning target volume (PTV) coverage for the QUASAR phantom was 85.5% after breathing pattern being changed, and went up to 95% after adaptive re-planning. PTV coverage for the deformable phantom was 93% after deformation and breathing pattern being changed, and went up to 95% after re-planning. Re-planning and dose escalation were feasible and can spare normal tissues for the real patient. 4D ART plan based on 4D VMAT-CT required smaller margins than 4D union plan while maintaining the same prescription dose coverage. Conclusions ART based on 4D VMAT-CT is feasible and would potentially facilitate re-planning and PTV dose escalation for VMAT patients who have the motion issue.
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Affiliation(s)
- Xiaodong Zhao
- Department of Radiation Oncology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Rui Zhang
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA
- Department of Radiation Oncology, Mary Bird Perkins Cancer Center, Baton Rouge, Louisiana, USA
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Zhou C, Hou L, Tang X, Liu C, Meng Y, Jia H, Yang H, Zhou S. CT-based radiomics nomogram may predict who can benefit from adaptive radiotherapy in patients with local advanced-NSCLC patients. Radiother Oncol 2023; 183:109637. [PMID: 36963440 DOI: 10.1016/j.radonc.2023.109637] [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: 09/21/2022] [Revised: 02/14/2023] [Accepted: 03/17/2023] [Indexed: 03/26/2023]
Abstract
BACKGROUND Although adaptive radiotherapy (ART) has many advantages, ART is not universal in the clinical appliance due to the consumption of a lot of labor, and economic burden. It is necessary to explore a CT stimulation-based radiomics model for screening who can get more benefits from ART in locally advanced non-small cell lung cancer (NSCLC) patients. METHOD 183 cases of NSCLC patients receiving concurrent chemoradiotherapy with an adaptive approach were enrolled as a primary cohort, while 28 cases from another hospital served as an independent external validation cohort. Tumor regression assessment was conducted based on GTV reduction (Criteria A) or according to RECIST Version 1.1(Criteria B). The radiomics features were extracted by the "PyRadiomics" package and further screened by the LASSO method. Then, logistic regression was used to establish the model. Bootstrap and external validation were applied to verify the stability of the model. The receiver operating characteristic (ROC) curve was delineated to assess the predictive efficacy of the radiomics model. Dose-volume histograms were quantitatively compared between the initial and composite ART plans. Clinical endpoints included overall survival (OS) and progression-free survival (PFS). RESULT There were no significant differences in clinical features between tumor regression-resistant (RR) and tumor regression-sensitivity (RS) groups. The AUC values of the Criteria A model and Criteria B model were 0.767 and 0.771, respectively. Bootstrapping validation and external validation confirmed the stability of models. In all patients, there was a significant benefit of ART in the lung, heart, cord, and esophagus compared to non-ART, particularly in RS patients. Furthermore, PFS and OS from ART were significantly longer in RS as defined by Criterion B than in RR patients with the same ART application. CONCLUSION CT-based radiomics can screen out the patients who can gain more benefits from ART, which contribute to guiding and popularizing the application of ART strategy in the clinic within economic benefits and feasibility.
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Affiliation(s)
- Chao Zhou
- From Department of Radiation Oncology, Taizhou Hospital Affiliated to Wenzhou Medical University, Zhejiang Province 317000, China
| | - Liqiao Hou
- From Department of Radiation Oncology, Taizhou Hospital Affiliated to Wenzhou Medical University, Zhejiang Province 317000, China
| | - Xingni Tang
- From Department of Radiation Oncology, Taizhou Hospital Affiliated to Wenzhou Medical University, Zhejiang Province 317000, China
| | - Changxing Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Yinnan Meng
- From Department of Radiation Oncology, Taizhou Hospital Affiliated to Wenzhou Medical University, Zhejiang Province 317000, China
| | - Haijian Jia
- Department of Radiation Oncology, Enze Hospital Affiliated Hospital of Hangzhou Medical College, Zhejiang Province 317000, China
| | - Haihua Yang
- Department of Radiation Oncology, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi 710018, P.R. China.
| | - Suna Zhou
- From Department of Radiation Oncology, Taizhou Hospital Affiliated to Wenzhou Medical University, Zhejiang Province 317000, China; Department of Radiation Oncology, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi 710018, P.R. China.
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Effect of Segmental Abutting Esophagus-Sparing Technique to Reduce Severe Esophagitis in Limited-Stage Small-Cell Lung Cancer Patients Treated with Concurrent Hypofractionated Thoracic Radiation and Chemotherapy. Cancers (Basel) 2023; 15:cancers15051487. [PMID: 36900279 PMCID: PMC10001206 DOI: 10.3390/cancers15051487] [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: 01/23/2023] [Revised: 02/23/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
The aim of the current study is to evaluate the effect of segmental abutting esophagus-sparing (SAES) radiotherapy on reducing severe acute esophagitis in patients with limited-stage small-cell lung cancer treated with concurrent chemoradiotherapy. Thirty patients were enrolled from the experimental arm (45 Gy in 3 Gy daily fractions in 3 weeks) of an ongoing phase III trial (NCT02688036). The whole esophagus was divided into the involved esophagus and the abutting esophagus (AE) according to the distance from the edge of the clinical target volume. All dosimetric parameters were significantly reduced for the whole esophagus and AE. The maximal and mean doses of the esophagus (47.4 ± 1.9 Gy and 13.5 ± 5.8 Gy, respectively) and AE (42.9 ± 2.3 Gy and 8.6 ± 3.6 Gy, respectively) in the SAES plan were significantly lower than those (esophagus 48.0 ± 1.9 Gy and 14.7± 6.1 Gy, AE 45.1 ± 2.4 Gy and 9.8 ± 4.2 Gy, respectively) in the non-SAES plan. With a median follow-up of 12.5 months, only one patient (3.3%) developed grade 3 acute esophagitis, and no grade 4-5 events happened. SAES radiotherapy has significant dosimetric advantages, which are successfully translated into clinical benefits and provide good feasibility for dose escalation to improve local control and prognosis in the future.
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Ajdari A, Liao Z, Mohan R, Wei X, Bortfeld T. Personalized mid-course FDG-PET based adaptive treatment planning for non-small cell lung cancer using machine learning and optimization. Phys Med Biol 2022; 67:10.1088/1361-6560/ac88b3. [PMID: 35947984 PMCID: PMC9579961 DOI: 10.1088/1361-6560/ac88b3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 08/10/2022] [Indexed: 11/12/2022]
Abstract
Objective. Traditional radiotherapy (RT) treatment planning of non-small cell lung cancer (NSCLC) relies on population-wide estimates of organ tolerance to minimize excess toxicity. The goal of this study is to develop a personalized treatment planning based on patient-specific lung radiosensitivity, by combining machine learning and optimization.Approach. Sixty-nine non-small cell lung cancer patients with baseline and mid-treatment [18]F-fluorodeoxyglucose (FDG)-PET images were retrospectively analyzed. A probabilistic Bayesian networks (BN) model was developed to predict the risk of radiation pneumonitis (RP) at three months post-RT using pre- and mid-treatment FDG information. A patient-specific dose modifying factor (DMF), as a surrogate for lung radiosensitivity, was estimated to personalize the normal tissue toxicity probability (NTCP) model. This personalized NTCP was then integrated into a NTCP-based optimization model for RT adaptation, ensuring tumor coverage and respecting patient-specific lung radiosensitivity. The methodology was employed to adapt the treatment planning of fifteen NSCLC patients.Main results. The magnitude of the BN predicted risks corresponded with the RP severity. Average predicted risk for grade 1-4 RP were 0.18, 0.42, 0.63, and 0.76, respectively (p< 0.001). The proposed model yielded an average area under the receiver-operating characteristic curve (AUROC) of 0.84, outperforming the AUROCs of LKB-NTCP (0.77), and pre-treatment BN (0.79). Average DMF for the radio-tolerant (RP grade = 1) and radiosensitive (RP grade ≥ 2) groups were 0.8 and 1.63,p< 0.01. RT personalization resulted in five dose escalation strategies (average mean tumor dose increase = 6.47 Gy, range = [2.67-17.5]), and ten dose de-escalation (average mean lung dose reduction = 2.98 Gy [0.8-5.4]), corresponding to average NTCP reduction of 15% [4-27].Significance. Personalized FDG-PET-based mid-treatment adaptation of NSCLC RT could significantly lower the RP risk without compromising tumor control. The proposed methodology could help the design of personalized clinical trials for NSCLC patients.
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Affiliation(s)
- Ali Ajdari
- Massachusetts General Hospital and Harvard Medical School, Department of Radiation Oncology, Division of Radiation BioPhysics, Boston, MA
| | - Zhongxing Liao
- University of Texas’ MD Anderson Cancer Center, Department of Radiation Oncology, Division of Radiation Oncology, Houston, TX
| | - Radhe Mohan
- University of Texas’ MD Anderson Cancer Center, Department of Radiation Physics, Division of Radiation Oncology, Houston, TX
| | - Xiong Wei
- University of Texas’ MD Anderson Cancer Center, Department of Radiation Oncology, Division of Radiation Oncology, Houston, TX
| | - Thomas Bortfeld
- Massachusetts General Hospital and Harvard Medical School, Department of Radiation Oncology, Division of Radiation BioPhysics, Boston, MA
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Song C, Lu Z, Li D, Pan S, Li N, Geng Q. Survival after wedge resection versus lobectomy for stage IA second primary NSCLC with previous lung cancer-directed surgery. Front Oncol 2022; 12:890033. [PMID: 36033457 PMCID: PMC9399676 DOI: 10.3389/fonc.2022.890033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/14/2022] [Indexed: 12/02/2022] Open
Abstract
Background The surgical procedure for early-stage second primary non-small cell lung cancer (SP-NSCLC) remains controversial, especially for patients with previous lung cancer-directed surgery. This study aims to compare the survival after wedge resection and lobectomy for these patients. Methods Stage IA SP-NSCLC patients with clear clinical information were searched from the Surveillance, Epidemiology, and End Results (SEER) database. The Cox proportional hazard model, the competing risk model, and the Kaplan–Meier survival curve were used to describe the survival difference between wedge resection and lobectomy. A 1:1 propensity score matching (PSM) method was also performed to reduce the potential impact of confounding factors between the two groups. Results Of the 320 eligible stage IA SP-NSCLC patients included in this study, 238 (74.4%) patients underwent wedge resection and 82 (25.6%) patients received lobectomy. The 5-year overall survival (OS) was 61.3% with wedge resection and was 66.1% with lobectomy. Both before and after PSM, wedge resection showed similar OS and lung cancer-specific mortality as lobectomy in the entire cohort. Additionally, in all subgroup analyses, wedge resection demonstrated equivalent survival to lobectomy. However, in the female, sublobectomy for the first primary lung cancer, and interval ≤ 24 months subgroups, wedge resection displayed a higher lung cancer-specific mortality than lobectomy (fine-gray test, all p < 0.05). Conclusion Overall, wedge resection is comparable to lobectomy in OS for stage IA SP-NSCLC patients with previous lung cancer-directed surgery. Therefore, we believe that wedge resection may be sufficient for these patients, although, in some cases, wedge resection has a higher lung cancer-specific mortality rate than lobectomy.
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Moderately Hypofractionated Proton Beam Therapy for Locally Advanced Non-Small Cell Lung Cancer: A New Way Forward for Dose Escalation? Int J Radiat Oncol Biol Phys 2022; 113:749-751. [PMID: 35772442 DOI: 10.1016/j.ijrobp.2022.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 11/20/2022]
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Massaro M, Franceschini D, Spoto R, Dominici L, Franzese C, Baldaccini D, Marini B, di Cristina L, Marzo MA, lo Faro L, Paganini L, Reggiori G, Galdieri C, Testori A, Scorsetti M. Locally Advanced Non-Small Cell Lung Cancer: Clinical Outcome, Toxicity and Predictive Factors in Patients Treated with Hypofractionated Sequential or Exclusive Radiotherapy. Curr Oncol 2022; 29:4893-4901. [PMID: 35877248 PMCID: PMC9325151 DOI: 10.3390/curroncol29070388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022] Open
Abstract
Background: This study evaluated the outcome, toxicity and predictive factors in patients unfit for concurrent chemo-radiotherapy (CT-RT) treated with hypofractionated sequential CT-RT or exclusive radiotherapy (RT) for locally advanced non-small cell lung cancer (LA-NSCLC). Methods: We included patients affected by LA-NSCLC (stage IIA-IVA) treated with a total dose of 50–60 Gy in 20 fractions. The primary outcomes were local control (LC), distant metastasis-free survival (DMFS), progression-free survival (PFS) and overall survival (OS). Univariate analysis was used to correlate outcomes with prognostic factors. Results: Between 2011 and 2019, 210 patients were treated, 113 (53.8%) with sequential CT-RT and 97 (46.2%) with exclusive RT. After a median follow-up of 15.3 months, 74 patients (35.2%) had a local progression and 133 (63.3%) had a distant progression. The one-, two- and five-year LC were 73.6%, 55.3% and 47.9%, respectively. At the time of analysis, 167 patients (79.5%) died. The one-, two- and five-year OS were 64.7%, 36% and 20%, respectively. PTV volume correlated with PFS (p = 0.001) and LC (p = 0.005). Acute and late toxicity occurred in 82% and 26% of patients. Conclusions: Albeit with the known limitations of a retrospective and heterogeneous study, our work shows that hypofractionated sequential CT-RT or exclusive RT offer a good local control and toxicity profile and a promising survival rate in LA-NSCLC patients unfit for the concurrent CT-RT scheme.
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Affiliation(s)
- Maria Massaro
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Davide Franceschini
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Correspondence:
| | - Ruggero Spoto
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Luca Dominici
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Ciro Franzese
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
| | - Davide Baldaccini
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Beatrice Marini
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
| | - Luciana di Cristina
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
| | - Marco A. Marzo
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
| | - Lorenzo lo Faro
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
| | - Lucia Paganini
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Giacomo Reggiori
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Carmela Galdieri
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
| | - Alberto Testori
- Division of Thoracic Surgery, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy;
| | - Marta Scorsetti
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.M.); (R.S.); (L.D.); (C.F.); (D.B.); (B.M.); (L.d.C.); (M.A.M.); (L.l.F.); (L.P.); (G.R.); (C.G.); (M.S.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
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Bucknell NW, Belderbos J, Palma DA, Iyengar P, Samson P, Chua K, Gomez D, McDonald F, Louie AV, Faivre-Finn C, Hanna GG, Siva S. Avoiding toxicity with lung radiation therapy: An IASLC perspective. J Thorac Oncol 2022; 17:961-973. [DOI: 10.1016/j.jtho.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 11/25/2022]
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11
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Rodríguez De Dios N, Navarro-Martin A, Cigarral C, Chicas-Sett R, García R, Garcia V, Gonzalez JA, Gonzalo S, Murcia-Mejía M, Robaina R, Sotoca A, Vallejo C, Valtueña G, Couñago F. GOECP/SEOR radiotheraphy guidelines for non-small-cell lung cancer. World J Clin Oncol 2022; 13:237-266. [PMID: 35582651 PMCID: PMC9052073 DOI: 10.5306/wjco.v13.i4.237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 08/27/2021] [Accepted: 04/09/2022] [Indexed: 02/06/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is a heterogeneous disease accounting for approximately 85% of all lung cancers. Only 17% of patients are diagnosed at an early stage. Treatment is multidisciplinary and radiotherapy plays a key role in all stages of the disease. More than 50% of patients with NSCLC are treated with radiotherapy (curative-intent or palliative). Technological advances-including highly conformal radiotherapy techniques, new immobilization and respiratory control systems, and precision image verification systems-allow clinicians to individualize treatment to maximize tumor control while minimizing treatment-related toxicity. Novel therapeutic regimens such as moderate hypofractionation and advanced techniques such as stereotactic body radiotherapy (SBRT) have reduced the number of radiotherapy sessions. The integration of SBRT into routine clinical practice has radically altered treatment of early-stage disease. SBRT also plays an increasingly important role in oligometastatic disease. The aim of the present guidelines is to review the role of radiotherapy in the treatment of localized, locally-advanced, and metastatic NSCLC. We review the main radiotherapy techniques and clarify the role of radiotherapy in routine clinical practice. These guidelines are based on the best available evidence. The level and grade of evidence supporting each recommendation is provided.
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Affiliation(s)
- Núria Rodríguez De Dios
- Department of Radiation Oncology, Hospital del Mar, Barcelona 08003, Spain
- Radiation Oncology Research Group, Hospital Del Mar Medical Research Institution, Barcelona 08003, Spain
- Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona 08003, Spain
| | - Arturo Navarro-Martin
- Department of Radiation Oncology, Thoracic Malignancies Unit, Hospital Duran i Reynals. ICO, L´Hospitalet de L, Lobregat 08908, Spain
| | - Cristina Cigarral
- Department of Radiation Oncology, Hospital Clínico de Salamanca, Salamanca 37007, Spain
| | - Rodolfo Chicas-Sett
- Department of Radiation Oncology, ASCIRES Grupo Biomédico, Valencia 46004, Spain
| | - Rafael García
- Department of Radiation Oncology, Hospital Ruber Internacional, Madrid 28034, Spain
| | - Virginia Garcia
- Department of Radiation Oncology, Hospital Universitario Arnau de Vilanova, Lleida 25198, Spain
| | | | - Susana Gonzalo
- Department of Radiation Oncology, Hospital Universitario La Princesa, Madrid 28006, Spain
| | - Mauricio Murcia-Mejía
- Department of Radiation Oncology, Hospital Universitario Sant Joan de Reus, Reus 43204, Tarragona, Spain
| | - Rogelio Robaina
- Department of Radiation Oncology, Hospital Universitario Arnau de Vilanova, Lleida 25198, Spain
| | - Amalia Sotoca
- Department of Radiation Oncology, Hospital Ruber Internacional, Madrid 28034, Spain
| | - Carmen Vallejo
- Department of Radiation Oncology, Hospital Universitario Ramón y Cajal, Madrid 28034, Spain
| | - German Valtueña
- Department of Radiation Oncology, Hospital Clínico Universitario Lozano Blesa, Zaragoza 50009, Spain
| | - Felipe Couñago
- Department of Radiation Oncology, Hospital Universitario Quirónsalud, Madrid 28223, Spain
- Department of Radiation Oncology, Hospital La Luz, Madrid 28003, Spain
- Department of Clinical, Universidad Europea, Madrid 28670, Spain
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Eze C, Guggenberger JE, Schmidt-Hegemann NS, Kenndoff S, Taugner J, Käsmann L, Schönecker S, Flörsch B, Li M, Belka C, Manapov F. Pooled analysis on image-guided moderately hypofractionated thoracic irradiation in inoperable node-positive/recurrent patients with non-small cell lung cancer with poor prognostic factors and severely limited pulmonary function and reserve. Cancer 2022; 128:2358-2366. [PMID: 35417563 DOI: 10.1002/cncr.34201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/28/2022] [Accepted: 03/01/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND The objective of this study was to investigate the feasibility and efficacy of image-guided moderately hypofractionated thoracic radiotherapy (hypo-IGRT) in patients with non-small cell lung cancer (NSCLC) with poor performance status and severely limited pulmonary function and reserve. METHODS Consecutive inoperable patients who had node-positive, stage IIB-IIIC (TNM, 8th edition) or recurrent NSCLC, had an Eastern Cooperative Oncology Group performance status ≥1, and had a forced expiratory volume in 1 second (FEV1 ) ≤1.0 L, had a single-breath diffusing capacity of the lung for carbon monoxide (DLCO-SB) ≤40% and/or on long-term oxygen therapy were analyzed. All patients received hypofractionated IGRT to a total dose of 42.0 to 49.0 Gy/13 to 16 fractions (2.8-3.5 Gy/fraction) (equivalent dose in 2-Gy fractions/biologically effective dose [α/β = 10] = 45.5-55.1 Gy/54.6-66.2 Gy) alone. Patients were monitored closely for nonhematological toxicity, which was classified per National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. RESULTS Between 2014 and 2021, 47 consecutive patients with a median age of 72 years (range, 52.2-88 years) were treated. At baseline, the median FEV1 , vital capacity, and DLCO-SB were 1.17 L (range, 0.69-2.84 L), 2.34 L (range, 1.23-3.74 L), and 35% predicted (range, 13.3%-69.0%), respectively. The mean and median planning target volumes were 410.8 cc (SD, 267.1 cc) and 315.4 cc (range, 83.4-1174.1 cc). With a median follow-up of 28.9 months (range, 0.5-90.6 months) after RT, the median progression-free survival (PFS)/overall survival (OS) and 6- and 12-month PFS/OS rates were 10.4 months (95% CI, 7-13.8 months)/18.3 months (95% CI, 9.2-27.4 months), 70%/89.4%, and 38.8%/66%, respectively. Treatment was well tolerated with only 1 case each of grade 3 pneumonitis and esophagitis. No toxicity greater than grade 3 was observed. CONCLUSIONS Patients with inoperable node-positive NSCLC, a poor performance status, and severely limited lung function can be safely and effectively treated with individualized moderately hypofractionated IGRT. The achieved survival rates for this highly multimorbid group of patients were encouraging.
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Affiliation(s)
- Chukwuka Eze
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Julian Elias Guggenberger
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | | | - Saskia Kenndoff
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Julian Taugner
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Lukas Käsmann
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany.,Comprehensive Pneumology Center Munich, Member of the German Center for Lung Research, Munich, Germany.,German Cancer Consortium, Partner Site Munich, Munich, Germany
| | - Stephan Schönecker
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Benedikt Flörsch
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Minglun Li
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Claus Belka
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany.,Comprehensive Pneumology Center Munich, Member of the German Center for Lung Research, Munich, Germany.,German Cancer Consortium, Partner Site Munich, Munich, Germany
| | - Farkhad Manapov
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany.,Comprehensive Pneumology Center Munich, Member of the German Center for Lung Research, Munich, Germany.,German Cancer Consortium, Partner Site Munich, Munich, Germany
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Hoffmann L, Persson G, Nygård L, Nielsen T, Borrisova S, Gaard-Petersen F, Josipovic M, Khalil A, Kjeldsen R, Knap M, Kristiansen C, Møller D, Ottosson W, Sand H, Thing R, Pøhl M, Schytte T. Thorough design and pre-trial quality assurance (QA) decrease dosimetric impact of delineation and dose planning variability in the STRICTLUNG and STARLUNG trials for stereotactic body radiotherapy (SBRT) of central and ultra-central lung tumours. Radiother Oncol 2022; 171:53-61. [DOI: 10.1016/j.radonc.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 10/18/2022]
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Swaminath A, Ritter T, Louie AV, Palma DA, Guckenberger M, Senan S, Bezjak A, Moghanaki D. Performing SBRT in the Fly-With-Caution Zone: Are We Heeding the Advice of Daedalus? Int J Radiat Oncol Biol Phys 2022; 112:586-589. [DOI: 10.1016/j.ijrobp.2021.10.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/05/2021] [Accepted: 10/15/2021] [Indexed: 11/29/2022]
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Liang S, Zhou G, Hu W. Research Progress of Heavy Ion Radiotherapy for Non-Small-Cell Lung Cancer. Int J Mol Sci 2022; 23:2316. [PMID: 35216430 PMCID: PMC8876478 DOI: 10.3390/ijms23042316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/10/2022] [Accepted: 02/18/2022] [Indexed: 02/05/2023] Open
Abstract
Non-small-cell lung cancer (NSCLC) has a high incidence and poses a serious threat to human health. However, the treatment outcomes of concurrent chemoradiotherapy for non-small-cell lung cancer are still unsatisfactory, especially for high grade lesions. As a new cancer treatment, heavy ion radiotherapy has shown promising efficacy and safety in the treatment of non-small-cell lung cancer. This article discusses the clinical progress of heavy ion radiotherapy in the treatment of non-small-cell lung cancer mainly from the different cancer stages, the different doses of heavy ion beams, and the patient's individual factors, and explores the deficiency of heavy ion radiotherapy in the treatment of non-small-cell lung cancer and the directions of future research, in order to provide reference for the wider and better application of heavy ion radiotherapy in the future.
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Affiliation(s)
| | - Guangming Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China;
| | - Wentao Hu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China;
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Contreras J, Srivastava A, Samson P, DeWees T, Govindan R, Baggstrom MQ, Morgensztern D, Roach M, Badiyan SN, Bradley J, Waqar S, Robinson C. Phase I Study of Accelerated Hypofractionated Proton Therapy and Chemotherapy for Locally Advanced Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2022; 113:742-748. [PMID: 35074432 DOI: 10.1016/j.ijrobp.2022.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 11/19/2022]
Abstract
PURPOSE To evaluate the maximum tolerated dose (MTD) of hypofractionated proton beam radiation therapy (PBT) with concurrent weekly carboplatin/paclitaxel in patients with stage II-III non-small cell lung cancer (NSCLC). MATERIALS/METHODS A phase I trial was designed using the Time to Event-Continuous Reassessment Method (TITE-CRM). MTD was defined as the dose associated with a 20% probability of CTCAE protocol-specified serious adverse events (SAEs). Starting dose was 3.5 Gy/fx for 15 fractions with 2 potential escalation and de-escalation levels in 0.25 Gy/fx increments. Chemotherapy was weekly concurrent carboplatin/paclitaxel with 2 cycles of optional consolidation carboplatin/paclitaxel. RESULTS From 5/2015-9/2016, 23 patients enrolled at a single institution. Of 20 evaluable, median age was 66.5 years (range, 54-89) and 12 (60%) were male. Fourteen had squamous cell (70%), and 15 (75%) were stage IIIA. Nineteen (95%) completed all 3 cycles of concurrent chemotherapy, and 16 (80%) received at least one cycle of consolidation chemotherapy. Within the 6-month TITE-CRM assessment window, no SAEs were reported, and most patients were treated at the highest dose-level. Dose-level assignment was 52.5 Gy (n=2), 56.25 Gy (n=4), and 60 Gy (n=14). The posterior probability of dose limiting toxicity (DLT) for 60 Gy was 5.3% (95% CI, 1-18.1%). Acute, non-serious AEs included grade 2 esophagitis in 7 patients (35%) and grade 2 pneumonitis in 1 patient (5%). At a median follow-up of 20.3 months for all and 44.9 months for living patients, there were no grade 4 or 5 AEs, though there were three (21% at 24 months) SAEs outside of the dose-escalation window. The 2-year overall survival, local, regional, and distant control rates were 48%, 84%, 77%, and 79%, respectively. CONCLUSIONS Hypofractionated PBT and chemotherapy up to 60 Gy in 15 fractions is acutely well tolerated, with high rates of locoregional control and overall survival, though late SAEs were noted.
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Affiliation(s)
| | | | - Pamela Samson
- Washington University School of Medicine, St. Louis, Missouri
| | | | | | | | | | | | | | | | - Saiama Waqar
- Washington University School of Medicine, St. Louis, Missouri
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An algorithm for thoracic re-irradiation using biologically effective dose: a common language on how to treat in a "no-treat zone". Radiat Oncol 2022; 17:4. [PMID: 34991637 PMCID: PMC8739721 DOI: 10.1186/s13014-021-01977-1] [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: 10/06/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
Background Re-irradiation (re-RT) is a technically challenging task for which few standardized approaches exist. This is in part due to the lack of a common platform to assess dose tolerance in relation to toxicity in the re-RT setting. To better address this knowledge gap and provide new tools for studying and developing thresholds for re-RT, we developed a novel algorithm that allows for anatomically accurate three-dimensional mapping of composite biological effective dose (BED) distributions from nominal doses (Gy). Methods The algorithm was designed to automatically convert nominal dose from prior treatment plans to corresponding BED value maps (voxel size 2.5 mm3 and α/β of 3 for normal tissue, BED3). Following the conversion of each plan to a BED3 dose distribution, deformable registration was used to create a summed composite re-irradiation BED3 plan for each patient who received two treatments. A proof-of-principle analysis was performed on 38 re-irradiation cases of initial stereotactic ablative radiotherapy (SABR) followed by either re-SABR or chemoradiation for isolated locoregional recurrence of early-stage non-small cell lung cancer. Results Evaluation of the algorithm-generated maps revealed appropriate conversion of physical dose to BED at each voxel. Of 14 patients receiving repeat SABR, there was one case each of grade 3 chest wall pain (7%), pneumonitis (7%), and dyspnea (7%). Of 24 patients undergoing repeat fractionated radiotherapy, grade 3 events were limited to two cases each of pneumonitis and dyspnea (8%). Composite BED3 dosimetry for each patient who experienced grade 2–3 events is provided and may help guide development of precise cumulative dose thresholds for organs at risk in the re-RT setting. Conclusions This novel algorithm successfully created a voxel-by-voxel composite treatment plan using BED values. This approach may be used to more precisely examine dosimetric predictors of toxicities and to establish more accurate normal tissue constraints for re-irradiation.
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Eze C, Taugner J, Schmidt-Hegemann NS, Käsmann L, Guggenberger JE, Roengvoraphoj O, Dantes M, Gjika A, Li M, Belka C, Manapov F. Feasibility of hypofractionated radiotherapy in inoperable node-positive NSCLC patients with poor prognostic factors and limited pulmonary reserve: a prospective observational study. Acta Oncol 2021; 60:1074-1078. [PMID: 34155956 DOI: 10.1080/0284186x.2021.1941244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chukwuka Eze
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Julian Taugner
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | | | - Lukas Käsmann
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
| | | | - Olarn Roengvoraphoj
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Maurice Dantes
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Arteda Gjika
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Minglun Li
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Claus Belka
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
| | - Farkhad Manapov
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
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Parisi E, Arpa D, Ghigi G, Micheletti S, Neri E, Tontini L, Pieri M, Romeo A. Complete pathological response in locally advanced non-small-cell lung cancer patient: A case report. World J Clin Cases 2021; 9:5540-5546. [PMID: 34307607 PMCID: PMC8281427 DOI: 10.12998/wjcc.v9.i20.5540] [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: 01/27/2021] [Revised: 02/22/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Chemotherapy and radiotherapy followed by durvalumab is currently the standard treatment for locally advanced node-positive non-small-cell lung cancer (NSCLC). We describe the case of a patient with locally advanced node-positive NSCLC (LA-NSCLC) treated in a phase II prospective protocol with chemotherapy, accelerated hypofractionated radiotherapy (AHRT) and surgery in the pre-immunotherapy era.
CASE SUMMARY A 69-year-old male, ex-smoker (20 PY), with a Karnofsky performance status of 90, was diagnosed with locally advanced squamous cell lung carcinoma. He was staged by total body computed tomography (CT) scanning, and integrated 18F-fluorodeoxyglucose positron emission tomography/CT scan [cT4 cN3 cM0, stage IIIC according to TNM (tumor-node-metastasis) 8th edition] and received AHRT between chemotherapy cycles, in accordance with the study protocol (EudractCT registration 2008-006525-14). At the end of the study the patient underwent surgery, which was not part of the protocol, and showed a complete pathological response.
CONCLUSION This case report confirms that AHRT can be used successfully to treat primary LA-NSCLC with bilateral mediastinal lymph node involvement. Our case is of particular interest because of the pathological response after AHRT and the lack of surgical complications. We hypothesize that this radiotherapeutic approach, with its proven efficacy, could be delivered as a short course reducing treatment costs, increasing patient compliance and reducing toxicity. We are currently investigating the possibility of combining hypofractionation, chemotherapy and immunotherapy for patients with LA-NSCLC.
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Affiliation(s)
- Elisabetta Parisi
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
| | - Donatella Arpa
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
| | | | - Simona Micheletti
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
| | - Elisa Neri
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
| | - Luca Tontini
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
| | - Martina Pieri
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
| | - Antonino Romeo
- Radiotherapy Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola 47014, Italy
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Brock K, Homer V, Soul G, Potter C, Chiuzan C, Lee S. Is more better? An analysis of toxicity and response outcomes from dose-finding clinical trials in cancer. BMC Cancer 2021; 21:777. [PMID: 34225682 PMCID: PMC8256624 DOI: 10.1186/s12885-021-08440-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The overwhelming majority of dose-escalation clinical trials use methods that seek a maximum tolerable dose, including rule-based methods like the 3+3, and model-based methods like CRM and EWOC. These methods assume that the incidences of efficacy and toxicity always increase as dose is increased. This assumption is widely accepted with cytotoxic therapies. In recent decades, however, the search for novel cancer treatments has broadened, increasingly focusing on inhibitors and antibodies. The rationale that higher doses are always associated with superior efficacy is less clear for these types of therapies. METHODS We extracted dose-level efficacy and toxicity outcomes from 115 manuscripts reporting dose-finding clinical trials in cancer between 2008 and 2014. We analysed the outcomes from each manuscript using flexible non-linear regression models to investigate the evidence supporting the monotonic efficacy and toxicity assumptions. RESULTS We found that the monotonic toxicity assumption was well-supported across most treatment classes and disease areas. In contrast, we found very little evidence supporting the monotonic efficacy assumption. CONCLUSIONS Our conclusion is that dose-escalation trials routinely use methods whose assumptions are violated by the outcomes observed. As a consequence, dose-finding trials risk recommending unjustifiably high doses that may be harmful to patients. We recommend that trialists consider experimental designs that allow toxicity and efficacy outcomes to jointly determine the doses given to patients and recommended for further study.
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Affiliation(s)
- Kristian Brock
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK.
| | - Victoria Homer
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - Gurjinder Soul
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Claire Potter
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - Cody Chiuzan
- Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Shing Lee
- Mailman School of Public Health, Columbia University, New York, NY, USA
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21
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Xiang Z, Zhong Z, Mu L, Li G, Zhou C, Wang H, Huang M. The Clinical Value of Computed Tomography (CT)-Guided 125I Brachytherapy for Locally Advanced Non-Small Cell Lung Cancer After Progression of Concurrent Radiochemotherapy. Cancer Manag Res 2021; 13:5297-5307. [PMID: 34262339 PMCID: PMC8275038 DOI: 10.2147/cmar.s313438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/12/2021] [Indexed: 12/25/2022] Open
Abstract
Purpose To further evaluate the efficacy and safety of computed tomography (CT)-guided iodine 125 (125I) brachytherapy to treat locally advanced non-small cell lung cancer (NSCLC) after progression of concurrent radiochemotherapy (CCRT). Methods This study obtained written consent from all patients and was approved by our institution. From January 2006 to June 2018, 210 NSCLC patients (progression of first-line CCRT) were retrospectively recruited and then divided into two groups. A total of 116 patients were given CT-guided 125I brachytherapy and second-line chemotherapy (group A), and 94 were treated with second-line chemotherapy alone (group B). Results In group A, local response rate (LRR) within 3 years was significantly better (P<0.05). Mean survival time [progression-free survival time (PFST) and overall survival (OS)] was 15.1±1.4 months and 21.2±1.6 months in group A compared with 10.0±1.4 months and 16.2±1.7 months in group B (PFST: P<0.01, HR=1.472, 95% CI 1.097–1.975; OS: P = 0.036, HR=1.342, 95% CI 1.005–1.791). Tumor size and No. of first cycle chemotherapy were independent factors that affected survival, ≤3cm largest tumor diameter and more than 4 first cycles of chemotherapy showed longer PFST and OS (P<0.05). Tumor-related clinical symptoms were relieved in group A (P<0.01). No serious complications occurred in the two groups. Conclusion 125I brachytherapy is effective and safe in locally advanced NSCLC after progression of CCRT.
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Affiliation(s)
- Zhanwang Xiang
- Interventional Radiology Program, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, People's Republic of China; Guangdong Provincial Key Lab of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, People's Republic of China
| | - Zhihui Zhong
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, People's Republic of China
| | - Luwen Mu
- Interventional Radiology Program, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, People's Republic of China; Guangdong Provincial Key Lab of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, People's Republic of China
| | - Guohong Li
- Department of Radiology, Guangdong Second Provincial General Hospital, Guangdong Provincial Emergency Hospital, Guangzhou, 510000, People's Republic of China
| | - Churen Zhou
- Interventional Radiology Program, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, People's Republic of China; Guangdong Provincial Key Lab of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, People's Republic of China
| | - Haofan Wang
- Interventional Radiology Program, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, People's Republic of China; Guangdong Provincial Key Lab of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, People's Republic of China
| | - Mingsheng Huang
- Interventional Radiology Program, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, People's Republic of China; Guangdong Provincial Key Lab of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, People's Republic of China
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Fakir H, Randhawa GK, Millman B, Laba J. Improving geometric sparing and therapeutic effectiveness of lung SBRT for central and ultra-central tumors. Med Dosim 2021; 46:398-403. [PMID: 34172369 DOI: 10.1016/j.meddos.2021.05.004] [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: 03/17/2021] [Accepted: 05/11/2021] [Indexed: 11/29/2022]
Abstract
The use of stereotactic body radiotherapy (SBRT) for central- and ultra-central lung tumors is a major therapeutic challenge since there are trade-offs between delivering adequate dose to the tumor and minimizing toxicity to critical mediastinal organs. This work investigates improving the therapeutic effectiveness of such SBRT treatments by enhancing the geometric sparing of normal tissue and systematically applying a planning target volume (PTV) margin smaller than the conventional values. Using plans from 10 previously SBRT-treated patients, we retrospectively created highly conformal plans with a reduced PTV margin of 2 mm and compared them to the clinical plans with a standard 5 mm PTV margin. We compared various dosimetric and biological parameters. We calculated the geometrical sparing factor (GSF) (ratio of biological dose between normal tissue and targets) for the mediastinal organs and the uncomplicated tumor control probability (UTCP) for the esophagus. We tracked tumor fraction doses using cone-beam computed tomography (CBCT) images. With geometric sparing, the median dose for critical mediastinal organs (proximal bronchial tree, great vessels, esophagus, and heart) dropped by 10 Gy (p ≤ 0.006). Dose sparing for the spinal cord and chest wall was 5 Gy and 8 Gy, respectively (p = 0.002). The geometrical sparing factor (GSF) dropped by 50% for the esophagus and the proximal bronchial tree (PBT) and 40% for the great vessels (p < 0.05). The CBCT fractional tumor dose varied by 2.7% (0.2 Gy) for the initially intended treatment volume and 4% (0.3 Gy) when accounting for daily volume changes. The expected delivered dose was above the prescribed value. Systematically reducing the PTV margin to 2 mm in lung SBRT of central and ultra-central tumors is feasible and ensures consistency in contouring and dose prescribing. It allows safe delivery of highly conformal treatments with significantly higher therapeutic effectiveness, potentially reducing treatment-related complications. Consequently, it may enable safer dose escalation, more effective fractionations, and safer management of retreatments and treatments of multiple synchronous lung tumors.
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Affiliation(s)
- Hatim Fakir
- London Health Sciences Centre, London, ON, Canada; Department of Medical Biophysics, Western University, London, ON, Canada; Department of Oncology, Western University, London, ON, Canada.
| | - Gurpreet K Randhawa
- London Health Sciences Centre, London, ON, Canada; Gurpreet Randhawa current address: University of Waterloo, ON, Canada
| | | | - Joanna Laba
- London Health Sciences Centre, London, ON, Canada; Department of Oncology, Western University, London, ON, Canada
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Rico M, Martínez M, Rodríguez M, Rosas L, Barco A, Martínez E. Hypofractionation and Stereotactic Body Radiation Therapy in Inoperable Locally Advanced Non-small Cell Lung Cancer. J Clin Transl Res 2021; 7:199-208. [PMID: 34104822 PMCID: PMC8177839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/24/2021] [Accepted: 03/29/2021] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND AND AIM Radiotherapy (RT) plays a key role in the control of locally advanced non-small cell lung cancer (LA-NSCLC). Throughout the years, different doses and fractionations of RT have been used in an attempt to optimize the results. Recently, special interest has been given to hypofractionation (hypoRT) and stereotactic body radiation therapy (SBRT). HypoRT is a relatively widespread treatment, although the accompanying level of evidence is limited. For its part, SBRT has been used specially to overdose specific areas of the disease as a boost after radiochemotherapy. In both cases, the study of how to integrate these RT tools with chemotherapy and immunotherapy is fundamental. In addition, the 2020 COVID-19 pandemic situation has sparked increased interest in hypofractionated treatments. In this review, we analyze the role of SBRT and hypoRT in the management of LA-NSCLC in accordance with current scientific evidence. RELEVANCE FOR PATIENTS The objective of this article is to introduce professionals to the role that hypoRT and SBRT can play in the treatment of LA-NSCLC to offer the best treatment to their patients.
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Affiliation(s)
- Mikel Rico
- 1Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain,2Health Research Institute of Navarre (IdiSNA), Navarra Biomed, Pamplona 31008, Navarra, Spain,
Corresponding author Mikel Rico Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain/Health Research Institute of Navarre (IdiSNA), Navarra Biomed, Pamplona 31008, Navarra, Spain E-mail:
| | - Maribel Martínez
- 1Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain
| | - Maitane Rodríguez
- 1Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain
| | - Lombardo Rosas
- 1Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain
| | - Andrea Barco
- 1Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain
| | - Enrique Martínez
- 1Department of Radiation Oncology, Complejo Hospitalario de Navarra, Pamplona 31008, Navarra, Spain
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Kepka L, Socha J. Dose and fractionation schedules in radiotherapy for non-small cell lung cancer. Transl Lung Cancer Res 2021; 10:1969-1982. [PMID: 34012807 PMCID: PMC8107746 DOI: 10.21037/tlcr-20-253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In the field of radiotherapy (RT), the issues of total dose, fractionation, and overall treatment time for non-small cell lung cancer (NSCLC) have been extensively investigated. There is some evidence to suggest that higher treatment intensity of RT, when given alone or sequentially with chemotherapy (CHT), is associated with improved survival. However, there is no evidence that the outcome is improved by RT at a higher dose and/or higher intensity when it is used concurrently with CHT. Moreover, some reports on the combination of full dose CHT with a higher biological dose of RT warn of the significant risk posed by such intensification. Stereotactic body radiotherapy (SBRT) provides a high rate of local control in the management of early-stage NSCLC through the use of high ablative doses. However, in centrally located tumors the use of SBRT may carry a risk of serious damage to the great vessels, bronchi, and esophagus, owing to the high ablative doses needed for optimal tumor control. There is a similar problem with moderate hypofractionation in radical RT for locally advanced NSCLC, and more evidence needs to be gathered regarding the safety of such schedules, especially when used in combination with CHT. In this article, we review the current evidence and questions related to RT dose/fractionation in NSCLC.
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Affiliation(s)
- Lucyna Kepka
- Department of Radiotherapy, Military Institute of Medicine, Warsaw, Poland
| | - Joanna Socha
- Department of Radiotherapy, Military Institute of Medicine, Warsaw, Poland
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Adaptive intensity-modulated radiotherapy with simultaneous integrated boost for stage III non-small cell lung cancer: Is a routine adaptation beneficial? Radiother Oncol 2021; 158:118-124. [PMID: 33636232 DOI: 10.1016/j.radonc.2021.02.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/31/2021] [Accepted: 02/15/2021] [Indexed: 12/25/2022]
Abstract
PURPOSE Tumor and anatomical changes during radiotherapy have been observed in stage III non-small cell lung cancer (NSCLC) from many previous studies. We hypothesized that a routinely scheduled adaptive radiotherapy would have clinical important dose benefits to lower the risk of toxicities, without increasing the tumor recurrences. METHODS We retrospectively reviewed 92 consecutive patients with inoperable stage III NSCLC between November 2017 and March 2019. All eligible patients should received simultaneously integrated boost (SIB) using intensity-modulated radiation therapy (IMRT). A mid-treatment CT simulation and a new adapted plan were routinely given after the first 20 fractions. The organs at risk (OARs) were delineated per RTOG 1106 atlas. Dose-volume histograms were quantitatively compared between the initial and composite adaptive plans. Logistic regression was applied to analyze the dose-response relationship. Clinical endpoints included acute symptomatic radiation pneumonitis (RP2) and esophagitis (RE2), local and regional tumor control, and progression-free survival (PFS). RESULTS Sixty-four eligible patients received adaptive SIB-IMRT were consecutively included. The GTVs reduced by a median of -38.2% after 42 to 44 Gy in 20 fractions of radiotherapy. By adapting to tumor and anatomical changes, dosimetric parameters of OARs decreased significantly. The mean lung dose decreased by an average of -74.8 cGy, and mean esophagus dose was lower by 183.1 cGy. We found grade 2 or higher acute RP in 11 patients (17.2%), and RE2 in 28 patients (43.8%). Commonly used lung and esophagus dose metrics were significantly associated with RP2 and RE2. The adaptation could reduce RP2 probability by 3%, and RE2 risk by 5%. Subgroups with higher OARs dose or larger tumor shrinkage may get more dose and toxicities benefits. The estimated median PFS was 12.5 months from the start of radiotherapy. CONCLUSIONS We demonstrated that the routinely adaptive SIB-IMRT strategy could significantly reduce the dose to surrounding normal tissues, potentially lower the associated acute RP and RE, without increasing the risk of tumor recurrences.
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An International Expert Survey on the Indications and Practice of Radical Thoracic Reirradiation for Non-Small Cell Lung Cancer. Adv Radiat Oncol 2021; 6:100653. [PMID: 33851065 PMCID: PMC8022147 DOI: 10.1016/j.adro.2021.100653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 12/09/2020] [Accepted: 01/09/2021] [Indexed: 12/25/2022] Open
Abstract
Purpose Thoracic reirradiation for non-small cell lung cancer with curative intent is potentially associated with severe toxicity. There are limited prospective data on the best method to deliver this treatment. We sought to develop expert consensus guidance on the safe practice of treating non-small cell lung cancer with radiation therapy in the setting of prior thoracic irradiation. Methods and Materials Twenty-one thoracic radiation oncologists were invited to participate in an international Delphi consensus process. Guideline statements were developed and refined during 4 rounds on the definition of reirradiation, selection of appropriate patients, pretreatment assessments, planning of radiation therapy, and cumulative dose constraints. Consensus was achieved once ≥75% of respondents agreed with a statement. Statements that did not reach consensus in the initial survey rounds were revised based on respondents’ comments and re-presented in subsequent rounds. Results Fifteen radiation oncologists participated in the 4 surveys between September 2019 and March 2020. The first 3 rounds had a 100% response rate, and the final round was completed by 93% of participants. Thirty-three out of 77 statements across all rounds achieved consensus. Key recommendations are as follows: (1) appropriate patients should have a good performance status and can have locally relapsed disease or second primary cancers, and there are no absolute lung function values that preclude reirradiation; (2) a full diagnostic workup should be performed in patients with suspected local recurrence and; (3) any reirradiation should be delivered using optimal image guidance and highly conformal techniques. In addition, consensus cumulative dose for the organs at risk in the thorax are described. Conclusions These consensus statements provide practical guidance on appropriate patient selection for reirradiation, appropriate radiation therapy techniques, and cumulative dose constraints.
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Bucknell N, Hardcastle N, Jackson P, Hofman M, Callahan J, Eu P, Iravani A, Lawrence R, Martin O, Bressel M, Woon B, Blyth B, MacManus M, Byrne K, Steinfort D, Kron T, Hanna G, Ball D, Siva S. Single-arm prospective interventional study assessing feasibility of using gallium-68 ventilation and perfusion PET/CT to avoid functional lung in patients with stage III non-small cell lung cancer. BMJ Open 2020; 10:e042465. [PMID: 33303468 PMCID: PMC7733178 DOI: 10.1136/bmjopen-2020-042465] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND In the curative-intent treatment of locally advanced lung cancer, significant morbidity and mortality can result from thoracic radiation therapy. Symptomatic radiation pneumonitis occurs in one in three patients and can lead to radiation-induced fibrosis. Local failure occurs in one in three patients due to the lungs being a dose-limiting organ, conventionally restricting tumour doses to around 60 Gy. Functional lung imaging using positron emission tomography (PET)/CT provides a geographic map of regional lung function and preclinical studies suggest this enables personalised lung radiotherapy. This map of lung function can be integrated into Volumetric Modulated Arc Therapy (VMAT) radiotherapy planning systems, enabling conformal avoidance of highly functioning regions of lung, thereby facilitating increased doses to tumour while reducing normal tissue doses. METHODS AND ANALYSIS This prospective interventional study will investigate the use of ventilation and perfusion PET/CT to identify highly functioning lung volumes and avoidance of these using VMAT planning. This single-arm trial will be conducted across two large public teaching hospitals in Australia. Twenty patients with stage III non-small cell lung cancer will be recruited. All patients enrolled will receive dose-escalated (69 Gy) functional avoidance radiation therapy. The primary endpoint is feasibility with this achieved if ≥15 out of 20 patients meet pre-defined feasibility criteria. Patients will be followed for 12 months post-treatment with serial imaging, biomarkers, toxicity assessment and quality of life assessment. DISCUSSION Using advanced techniques such as VMAT functionally adapted radiation therapy may enable safe moderate dose escalation with an aim of improving local control and concurrently decreasing treatment related toxicity. If this technique is proven feasible, it will inform the design of a prospective randomised trial to assess the clinical benefits of functional lung avoidance radiation therapy. ETHICS AND DISSEMINATION This study was approved by the Peter MacCallum Human Research Ethics Committee. All participants will provide written informed consent. Results will be disseminated via publications. TRIALS REGISTRATION NUMBER NCT03569072; Pre-results.
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Affiliation(s)
- Nicholas Bucknell
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Nicholas Hardcastle
- Department of Physical Sciences, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, New South Wales, Australia
| | - Price Jackson
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Department of Physical Sciences, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Michael Hofman
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Molecular Imaging and Therapeutic Nuclear Medicine, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Jason Callahan
- Molecular Imaging and Therapeutic Nuclear Medicine, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Peter Eu
- Molecular Imaging and Therapeutic Nuclear Medicine, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Amir Iravani
- Molecular Imaging and Therapeutic Nuclear Medicine, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Nuclear Medicine, Washington University School of Medicine, St Louis, Missouri, USA
| | - Rhonda Lawrence
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Olga Martin
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Mathias Bressel
- Centre for Biostatistics and Clinical Trials, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Beverley Woon
- Department of Radiology, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Benjamin Blyth
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Michael MacManus
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Keelan Byrne
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Daniel Steinfort
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Department of Respiratory Medicine, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Tomas Kron
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Department of Physical Sciences, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Gerard Hanna
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - David Ball
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Shankar Siva
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
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Isotoxic Intensity Modulated Radiation Therapy in Stage III Non-Small Cell Lung Cancer: A Feasibility Study. Int J Radiat Oncol Biol Phys 2020; 109:1341-1348. [PMID: 33232772 PMCID: PMC7955281 DOI: 10.1016/j.ijrobp.2020.11.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/03/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Not all patients with stage III non-small cell lung cancer (NSCLC) are suitable for concurrent chemoradiation therapy (CRT). Local failure rate is high for sequential concurrent CRT. As such, there is a rationale for treatment intensification. METHODS AND MATERIALS Isotoxic intensity modulated radiation therapy (IMRT) is a multicenter feasibility study that combines different intensification strategies including hyperfractionation, acceleration, and dose escalation facilitated by IMRT. Patients with unresectable stage III NSCLC, Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 2, and unsuitable for concurrent CRT were recruited. A minimum of 2 cycles of platinum-based chemotherapy was compulsory before starting radiation therapy (RT). Radiation dose was increased until a maximum dose of 79.2 Gy was reached or 1 or more of the organs at risk met predefined constraints. RT was delivered in 1.8-Gy fractions twice daily, and an RT quality assurance program was implemented. The primary objective was the delivery of isotoxic IMRT to a dose >60 Gy equivalent dose in 2-Gy fractions (EQD2 assuming an α/β ratio of 10 Gy for acute reacting tissues). RESULTS Thirty-seven patients were recruited from 7 UK centers. Median age was 69.9 years (range, 46-86 years). The male-to-female ratio was 17:18. ECOG PS was 0 to 5 in 14.2% of patients; PS was 1 to 27 in 77.1% of patients; PS was 2 to 3 in 8.6% of patients. Stage IIIA:IIIB ratio was 22:13 (62.9%:37.1%). Of 37 patients, 2 (5.4%) failed to achieve EQD2 > 60 Gy. Median prescribed tumor dose was 77.4 Gy (range, 61.2-79.2 Gy). A maximum dose of 79.2Gy was achieved in 14 patients (37.8%). Grade 3 esophagitis was reported in 2 patients, and no patients developed grade 3 to 4 pneumonitis. There were 3 grade 5 events: acute radiation pneumonitis, bronchopulmonary hemorrhage, and acute lung infection. Median follow-up at time of analysis was 25.4 months (range, 8.0-44.2) months for 11 of 35 survivors. The median survival was 18.1 months (95% confidence interval [CI], 13.9-30.6), 2-year overall survival was 33.6% (95% CI, 17.9-50.1), and progression-free survival was 23.9% (95% CI, 11.3-39.1). CONCLUSIONS Isotoxic IMRT is a well-tolerated and feasible approach to treatment intensification.
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Wang B, Wang DQ, Lin MS, Lu SP, Zhang J, Chen L, Li QW, Cheng ZK, Liu FJ, Guo JY, Liu H, Qiu B. Accumulation of the delivered dose based on cone-beam CT and deformable image registration for non-small cell lung cancer treated with hypofractionated radiotherapy. BMC Cancer 2020; 20:1112. [PMID: 33198676 PMCID: PMC7670776 DOI: 10.1186/s12885-020-07617-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/05/2020] [Indexed: 12/25/2022] Open
Abstract
Background This study aimed to quantify the dosimetric differences between the planned and delivered dose to tumor and normal organs in locally advanced non-small cell lung cancer (LANSCLC) treated with hypofractionated radiotherapy (HRT), and to explore the necessity and identify optimal candidates for adaptive radiotherapy (ART). Methods Twenty-seven patients with stage III NSCLC were enrolled. Planned radiation dose was 51Gy in 17 fractions with cone-beam CT (CBCT) acquired at each fraction. Virtual CT was generated by deformable image registration (DIR) of the planning CT to CBCT for dose calculation and accumulation. Dosimetric parameters were compared between original and accumulated plans using Wilcoxon signed rank test. Correlations between dosimetric differences and clinical variables were analyzed using Mann-Whitney U test or Chi-square test. Results Patients had varied gross tumor volume (GTV) reduction by HRT (median reduction rate 11.1%, range − 2.9-44.0%). The V51 of planning target volume for GTV (PTV-GTV) was similar between original and accumulated plans (mean, 88.2% vs. 87.6%, p = 0.452). Only 11.1% of patients had above 5% relative decrease in V51 of PTV-GTV in accumulated plans. Compared to the original plan, limited increase (median relative increase < 5%) was observed in doses of total lung (mean dose, V20 and V30), esophagus (mean dose, maximum dose) and heart (mean dose, V30 and V40) in accumulated plans. Less than 30% of patients had above 5% relative increase of lung or heart doses. Patients with quick tumor regression or baseline obstructive pneumonitis showed more notable increase in doses to normal structures. Patients with baseline obstructive atelectasis showed notable decrease (10.3%) in dose coverage of PTV-GTV. Conclusions LANSCLC patients treated with HRT had sufficient tumor dose coverage and acceptable normal tissue dose deviation. ART should be applied in patients with quick tumor regression and baseline obstructive pneumonitis/atelectasis to spare more normal structures. Supplementary Information Supplementary information accompanies this paper at 10.1186/s12885-020-07617-3.
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Affiliation(s)
- Bin Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Da Quan Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Mao Sheng Lin
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Shi Pei Lu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Jun Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Li Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Qi Wen Li
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Zhang Kai Cheng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Fang Jie Liu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Jin Yu Guo
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Hui Liu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
| | - Bo Qiu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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Liu YE, Xue XY, Zhang R, Chen XJ, Ding YX, Liu CX, Qin YL, Li WQ, Ren XC, Lin Q. Study protocol: a multicentre, prospective, phase II trial of isotoxic hypofractionated concurrent chemoradiotherapy for non-small cell lung cancer. BMJ Open 2020; 10:e036295. [PMID: 33099491 PMCID: PMC7590348 DOI: 10.1136/bmjopen-2019-036295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Concurrent chemoradiotherapy with conventional fractionation has been acknowledged as one of the standard treatments for locally advanced non-small cell lung cancer (NSCLC). The radiotherapy dose of 60 Gy is far from enough for local tumour control. Due to this fact, hypofractionated radiotherapy can shorten the total treatment duration, partially counteract the accelerated repopulation of tumour cells and deliver a higher biological effective dose, it has been increasingly used for NSCLC. In theory, concurrent hypofractionated chemoradiotherapy can result in an enhanced curative effect. To date, the vast majority of radiotherapy prescriptions assign a uniform radiotherapy dose to all patients. However this kind of uniform radiotherapy prescription may lead to two consequences: excess damage to normal tissues for large tumours and insufficient dose for small tumours. Our study aims to evaluate whether delivering individualised radiotherapy dose is feasible using intensity-modulated radiotherapy. METHODS AND ANALYSIS Our study of individualised radiotherapy is a multicenter phase II trial. From April 2019, a total of 30 patients from three Chinese centres, with a proven histological or cytological diagnosis of inoperable NSCLC, will be recruited. The dose of radiation will be increased until one or more of the organs at risk tolerance or the maximum dose of 69 Gy is reached. The primary end point is feasibility, with response rates, progression-free survival and overall survival as secondary end points. The concurrent chemotherapy regimen will be docetaxel plus lobaplatin. ETHICS AND DISSEMINATION The study has been approved by medical ethics committees from three research centres. The trial is conducted in accordance with the Declaration of Helsinki.The trial results will be disseminated through academic conference presentations and peer-reviewed publications. TRIAL REGISTRATION NUMBER NCT03606239.
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Affiliation(s)
- Yue-E Liu
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Xiao-Ying Xue
- Department of Radiotherapy, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Rui Zhang
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Xue-Ji Chen
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Yu-Xia Ding
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Chao-Xing Liu
- Department of Oncology, No.1 Hospital of Shijiazhuang City, Shijiazhuang, Hebei, China
| | - Yue-Liang Qin
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Wei-Qian Li
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Xiao-Cang Ren
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
| | - Qiang Lin
- Department of Oncology, North China Petroleum Bureau General Hospital, Hebei Medical University, Renqiu, Hebei, China
- Hebei Medical University, Shijiazhuang, Hebei, China
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Jin Q, Lin C, Zhu X, Cao Y, Guo C, Wang L. 125I seeds irradiation inhibits tumor growth and induces apoptosis by Ki-67, P21, survivin, livin and caspase-9 expression in lung carcinoma xenografts. Radiat Oncol 2020; 15:238. [PMID: 33059701 PMCID: PMC7559445 DOI: 10.1186/s13014-020-01682-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 10/06/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Lung cancer is a fatal disease and a serious health problem worldwide. Patients are usually diagnosed at an advanced stage, and the effectiveness of chemotherapy for such patients is very limited. Iodine 125 seed (125I) irradiation can be used as an important adjuvant treatment for lung carcinoma. The purpose of this study was to examine the role of irradiation by 125I seeds in human lung cancer xenograft model and to determine the underlying mechanisms involved, with a focus on apoptosis. METHODS 40 mice with A549 lung adenocarcinoma xenografts were randomly divided into 4 groups: control group (n = 10), sham seed (0 mCi) implant group (n = 10), 125I seed (0.6 mCi) implant group (n = 10) and 125I seed (0.8 mCi) implant group (n = 10), respectively. The body weight and tumor volume, were recorded every 4 days until the end of the study. Apoptotic cells were checked by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay and activities of caspase-3 and caspase-8 enzyme were tested. Expression of P21, survivin, livin, caspase-9 and proliferating cell nuclear antigen (Ki-67) was detected with immunohistochemical staining. RESULTS The results of TUNEL staining assays showed that 125I seed irradiation suppresses the growth of lung cancer xenografts in nude mice and induced apoptosis. The activity of caspase-3 and caspase-8 was significantly higher. The expression levels Ki67, survivin and livin were substantially downregulated, while P21 and caspase-9 protein expression were significantly increased following 125I seed irradiation. This study revealed that 125I seed irradiation could significantly change apoptosis-related protein in human lung cancer xenografts. CONCLUSIONS Overall, our study demonstrates that radiation exposure by 125I seeds could be a new treatment option for lung cancer.
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Affiliation(s)
- Qing Jin
- Department of Critical Care Medicine, The 903th Hospital of PLA Joint Logistics Support Force, Zhejiang Province, Hangzhou, 310013, China
| | - Cunzhi Lin
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Xinhong Zhu
- Department of Internal Medicine, Qingdao Municipal Hospital, Qingdao, 266071, Shandong Province, China
| | - Yiwei Cao
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Caihong Guo
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Lijun Wang
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China.
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Käsmann L, Dietrich A, Staab-Weijnitz CA, Manapov F, Behr J, Rimner A, Jeremic B, Senan S, De Ruysscher D, Lauber K, Belka C. Radiation-induced lung toxicity - cellular and molecular mechanisms of pathogenesis, management, and literature review. Radiat Oncol 2020; 15:214. [PMID: 32912295 PMCID: PMC7488099 DOI: 10.1186/s13014-020-01654-9] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/20/2020] [Indexed: 12/17/2022] Open
Abstract
Lung, breast, and esophageal cancer represent three common malignancies with high incidence and mortality worldwide. The management of these tumors critically relies on radiotherapy as a major part of multi-modality care, and treatment-related toxicities, such as radiation-induced pneumonitis and/or lung fibrosis, are important dose limiting factors with direct impact on patient outcomes and quality of life. In this review, we summarize the current understanding of radiation-induced pneumonitis and pulmonary fibrosis, present predictive factors as well as recent diagnostic and therapeutic advances. Novel candidates for molecularly targeted approaches to prevent and/or treat radiation-induced pneumonitis and pulmonary fibrosis are discussed.
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Affiliation(s)
- Lukas Käsmann
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377, Munich, Germany.
- German Center for Lung Research (DZL), partner site Munich, Munich, Germany.
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany.
| | - Alexander Dietrich
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Medical Faculty, LMU-Munich, Munich, Germany
| | - Claudia A Staab-Weijnitz
- German Center for Lung Research (DZL), partner site Munich, Munich, Germany
- Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
| | - Farkhad Manapov
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377, Munich, Germany
- German Center for Lung Research (DZL), partner site Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - Jürgen Behr
- German Center for Lung Research (DZL), partner site Munich, Munich, Germany
- Department of Internal Medicine V, LMU Munich, Munich, Germany
| | - Andreas Rimner
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, USA
| | | | - Suresh Senan
- Department of Radiation Oncology, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Dirk De Ruysscher
- Department of Radiation Oncology (MAASTRO), GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Kirsten Lauber
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - Claus Belka
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377, Munich, Germany
- German Center for Lung Research (DZL), partner site Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
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Faivre-Finn C, Fenwick JD, Franks KN, Harrow S, Hatton MQF, Hiley C, McAleese JJ, McDonald F, O'Hare J, Peedell C, Pope T, Powell C, Rulach R, Toy E. Reduced Fractionation in Lung Cancer Patients Treated with Curative-intent Radiotherapy during the COVID-19 Pandemic. Clin Oncol (R Coll Radiol) 2020; 32:481-489. [PMID: 32405158 PMCID: PMC7218369 DOI: 10.1016/j.clon.2020.05.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Abstract
Patients treated with curative-intent lung radiotherapy are in the group at highest risk of severe complications and death from COVID-19. There is therefore an urgent need to reduce the risks associated with multiple hospital visits and their anti-cancer treatment. One recommendation is to consider alternative dose-fractionation schedules or radiotherapy techniques. This would also increase radiotherapy service capacity for operable patients with stage I-III lung cancer, who might be unable to have surgery during the pandemic. Here we identify reduced-fractionation for curative-intent radiotherapy regimes in lung cancer, from a literature search carried out between 20/03/2020 and 30/03/2020 as well as published and unpublished audits of hypofractionated regimes from UK centres. Evidence, practical considerations and limitations are discussed for early-stage NSCLC, stage III NSCLC, early-stage and locally advanced SCLC. We recommend discussion of this guidance document with other specialist lung MDT members to disseminate the potential changes to radiotherapy practices that could be made to reduce pressure on other departments such as thoracic surgery. It is also a crucial part of the consent process to ensure that the risks and benefits of undergoing cancer treatment during the COVID-19 pandemic and the uncertainties surrounding toxicity from reduced fractionation have been adequately discussed with patients. Furthermore, centres should document all deviations from standard protocols, and we urge all colleagues, where possible, to join national/international data collection initiatives (such as COVID-RT Lung) aimed at recording the impact of the COVID-19 pandemic on lung cancer treatment and outcomes.
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Affiliation(s)
- C Faivre-Finn
- The Christie NHS Foundation Trust, Manchester, UK; The University of Manchester, Manchester, UK.
| | - J D Fenwick
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK; Department of Physics, Clatterbridge Cancer Centre, Bebington, Wirral, UK
| | - K N Franks
- Leeds Cancer Centre, St James's University Hospital, Leeds, UK; University of Leeds, Leeds, UK
| | - S Harrow
- Beatson West of Scotland Cancer Centre, Glasgow, UK; University of Glasgow, Glasgow, UK
| | | | - C Hiley
- CRUK Lung Cancer Centre of Excellence, University College London, London, UK; Department of Clinical Oncology, University College London Hospitals NHS Foundation Trust, London, UK
| | - J J McAleese
- Northern Ireland Cancer Centre, Belfast City Hospital, Belfast, UK
| | - F McDonald
- The Royal Marsden NHS Foundation Trust, London, UK
| | - J O'Hare
- Northern Ireland Cancer Centre, Belfast City Hospital, Belfast, UK
| | - C Peedell
- James Cook University Hospital, Middlesbrough, UK
| | - T Pope
- Clatterbridge Cancer Centre, Bebington, Wirral, UK
| | - C Powell
- South West Wales Cancer Centre, Singleton Hospital, Swansea, UK; Velindre Cancer Centre, Cardiff, UK
| | - R Rulach
- Beatson West of Scotland Cancer Centre, Glasgow, UK; University of Glasgow, Glasgow, UK
| | - E Toy
- Royal Devon and Exeter NHS Foundation Trust, Exeter Hospital, Exeter, UK
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Wang W, Matuszak MM, Hu C, Huang KC, Chen E, Arenberg D, Curtis JL, Jolly S, Jin JY, Machtay M, Ten Haken RK, Kong FMS. Central Airway Toxicity After High Dose Radiation: A Combined Analysis of Prospective Clinical Trials for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2020; 108:587-596. [PMID: 32470501 DOI: 10.1016/j.ijrobp.2020.05.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE To study the dosimetric risk factors for radiation-induced proximal bronchial tree (PBT) toxicity in patients treated with radiation therapy for non-small cell lung cancer (NSCLC). METHODS AND MATERIALS Patients with medically inoperable or unresectable NSCLC treated with conventionally fractionated 3-dimensional conformal radiation therapy (3DCRT) in prospective clinical trials were eligible for this study. Proximal bronchial tree (PBT) and PBT wall were contoured consistently per RTOG 1106 OAR-Atlas. The dose-volume histograms (DVHs) of physical prescription dose (DVHp) and biological effective dose (α/β = 2.5; DVH2.5) were generated, respectively. The primary endpoint was PBT toxicities, defined by CTCAE 4.0 under the terminology of bronchial stricture/atelectasis. RESULTS Of 100 patients enrolled, with a median follow-up of 64 months (95% confidence interval [CI], 50-78), 73% received 70 Gy or greater and 17% developed PBT toxicity (grade 1, 8%; grade 2, 6%; grade 3, 0%; and grade 4, 3%). The median time interval between RT initiation and onset of PBT toxicity was 8.4 months (95% CI, 4.7-44.1). The combined DVHs showed that no patient with a PBT maximum physical dose <65 Gy developed any PBT toxicity. Cox proportional hazards analysis and receiver operating characteristic analysis demonstrated that V75 of PBT was the most significant dosimetric parameter for both grade 1+ (P = .035) and grade 2+ (P = .037) PBT toxicities. The dosimetric thresholds for V75 of PBT were 6.8% and 11.9% for grade 1+ and grade 2+ PBT toxicity, respectively. CONCLUSIONS V75 of PBT appeared be the most significant dosimetric parameter for PBT toxicity after conventionally fractionated thoracic 3DCRT. Constraining V75 of PBT can limit clinically significant PBT toxicity.
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Affiliation(s)
- Weili Wang
- Department of Radiation Oncology, University Hospitals/Seidman Cancer Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Martha M Matuszak
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Chen Hu
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ke Colin Huang
- Department of Radiation Oncology, Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana
| | - Eileen Chen
- Department of Radiation Oncology, University Hospitals/Seidman Cancer Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Douglas Arenberg
- Department of Internal Medicine, Pulmonary & Critical Care Medicine Division, University of Michigan, Ann Arbor, Michigan
| | - Jeffrey L Curtis
- Department of Internal Medicine, Pulmonary & Critical Care Medicine Division, University of Michigan, Ann Arbor, Michigan; Medical Service, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
| | - Shruti Jolly
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Jian-Yue Jin
- Department of Radiation Oncology, University Hospitals/Seidman Cancer Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Mitchell Machtay
- Department of Radiation Oncology, University Hospitals/Seidman Cancer Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Randall K Ten Haken
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Feng-Ming Spring Kong
- Department of Radiation Oncology, University Hospitals/Seidman Cancer Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio; Department of Clinical Oncology, Hong Kong University Shenzhen Hospital and Queen Mary Hospital, Hong Kong University Li Ka Shing Medical School, Hong Kong, China.
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Zehentmayr F, Grambozov B, Kaiser J, Fastner G, Sedlmayer F. Radiation dose escalation with modified fractionation schedules for locally advanced NSCLC: A systematic review. Thorac Cancer 2020; 11:1375-1385. [PMID: 32323484 PMCID: PMC7262927 DOI: 10.1111/1759-7714.13451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/04/2020] [Accepted: 04/05/2020] [Indexed: 12/25/2022] Open
Abstract
Concomitant chemo‐radiotherapy (cCRT) with 60 Gy in 30 fractions is the standard of care for stage 111 non‐small cell lung cancer (NSCLC). With a median overall survival of 28.7 months at best and maximum locoregional control rates of 70% at two years, the prognosis for these patients is still dismal. This systematic review summarizes data on dose escalation by alternative fractionation, which has been explored as a primary strategy to improve both local control and overall survival over the past three decades. A Pubmed literature search was performed according to the PRISMA guidelines. Because of the large variety of radiation regimens total doses were converted to EQD2,T. Only studies using an EQD2,T of at least 49.5 Gy, which corresponds to the conventional 60 Gy in six weeks, were included. In a total of 3256 patients, the median OS was 17 months (range 7.4–30 months). While OS was better for patients treated after the year 2000 (P = 0.003) or with a mandatory 18F‐FDG‐PET‐CT in the diagnostic work‐up (P = 0.001), treatment sequence did not make a difference (P = 0.106). The most commonly reported toxicity was acute esophagitis (AE) with a median rate of 24% (range 0%–84%). AE increased at a rate of 0.5% per Gy increment in EQD2,T (P = 0.016). Dose escalation above the conventional 60 Gy using modified radiation fractionation schedules and shortened OTT yield similar mOS and LRC regardless of treatment sequence with a significant EQD2,T dependent increase in AE. Key points Significant findingsModified radiation dose escalation sequentially combined with chemotherapy yields similar outcome as concomitant treatment. OS is better with the mandatory inclusion of FDG‐PET‐CT in the diagnostic work‐up. The risk of acute esophagitis increases with higher EQD2,T.
What this study addsChemo‐radiotherapy (CRT) with modified dose escalation regimens yields OS and LC rates in the range of standard therapy regardless of treatment sequence. This broadens the database of curative options in patients who are not eligible concomitant CRT.
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Affiliation(s)
- Franz Zehentmayr
- Department of Radiation Oncology, Paracelsus Medical University, Salzburg, Australia.,Institute for Research and Development on Advanced Radiation Technologies (radART), Paracelsus Medical University, Salzburg, Australia
| | - Brane Grambozov
- Department of Radiation Oncology, Paracelsus Medical University, Salzburg, Australia
| | - Julia Kaiser
- Department of Radiation Oncology, Paracelsus Medical University, Salzburg, Australia
| | - Gerd Fastner
- Department of Radiation Oncology, Paracelsus Medical University, Salzburg, Australia
| | - Felix Sedlmayer
- Department of Radiation Oncology, Paracelsus Medical University, Salzburg, Australia.,Institute for Research and Development on Advanced Radiation Technologies (radART), Paracelsus Medical University, Salzburg, Australia
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Pokhrel D, Halfman M, Sanford L. A simple, yet novel hybrid-dynamic conformal arc therapy planning via flattening filter-free beam for lung stereotactic body radiotherapy. J Appl Clin Med Phys 2020; 21:83-92. [PMID: 32243704 PMCID: PMC7324700 DOI: 10.1002/acm2.12868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 02/23/2020] [Accepted: 03/09/2020] [Indexed: 12/25/2022] Open
Abstract
Purpose Due to multiple beamlets in the delivery of highly modulated volumetric arc therapy (VMAT) plans, dose delivery uncertainties associated with small‐field dosimetry and interplay effects can be concerns in the treatment of mobile lung lesions using a single‐dose of stereotactic body radiotherapy (SBRT). Herein, we describe and compare a simple, yet clinically useful, hybrid 3D‐dynamic conformal arc (h‐DCA) planning technique using flattening filter‐free (FFF) beams to minimize these effects. Materials and Methods Fifteen consecutive solitary early‐stage I‐II non‐small‐cell lung cancer (NSCLC) patients who underwent a single‐dose of 30 Gy using 3–6 non‐coplanar VMAT arcs with 6X‐FFF beams in our clinic. These patients’ plans were re‐planned using a non‐coplanar hybrid technique with 2–3 differentially‐weighted partial dynamic conformal arcs (DCA) plus 4–6 static beams. About 60–70% of the total beam weight was given to the DCA and the rest was distributed among the static beams to maximize the tumor coverage and spare the organs‐at‐risk (OAR). The clinical VMAT and h‐DCA plans were compared via RTOG‐0915 protocol for conformity and dose to OAR. Additionally, delivery efficiency, accuracy, and overall h‐DCA planning time were recorded. Results All plans met RTOG‐0915 requirements. Comparison with clinical VMAT plans h‐DAC gave better target coverage with a higher dose to the tumor and exhibited statistically insignificance differences in gradient index, D2cm, gradient distance and OAR doses with the exception of maximal dose to skin (P = 0.015). For h‐DCA plans, higher values of tumor heterogeneity and tumor maximum, minimum and mean doses were observed and were 10%, 2.8, 1.0, and 2.0 Gy, on average, respectively, compared to the clinical VMAT plans. Average beam on time was reduced by a factor of 1.51. Overall treatment planning time for h‐DCA was about an hour. Conclusion Due to no beam modulation through the target, h‐DCA plans avoid small‐field dosimetry and MLC interplay effects and resulting in enhanced target coverage by improving tumor dose (characteristic of FFF‐beam). The h‐DCA simplifies treatment planning and beam on time significantly compared to clinical VMAT plans. Additionally, h‐DCA allows for the real time target verification and eliminates patient‐specific VMAT quality assurance; potentially offering cost‐effective, same or next day SBRT treatments. Moreover, this technique can be easily adopted to other disease sites and small clinics with less extensive physics or machine support.
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Affiliation(s)
- Damodar Pokhrel
- Department of Radiation Medicine, Medical Physics Graduate Program, University of Kentucky, Lexington, KY, USA
| | - Matthew Halfman
- Department of Radiation Medicine, Medical Physics Graduate Program, University of Kentucky, Lexington, KY, USA
| | - Lana Sanford
- Department of Radiation Medicine, Medical Physics Graduate Program, University of Kentucky, Lexington, KY, USA
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Hoppe BS, Nichols RC, Flampouri S, Li Z, Morris CG, Pham DC, Mohindra P, Hartsell W, Mohammed N, Chon BH, Simone CB. Hypofractionated Proton Therapy with Concurrent Chemotherapy for Locally Advanced Non-Small Cell Lung Cancer: A Phase 1 Trial from the University of Florida and Proton Collaborative Group. Int J Radiat Oncol Biol Phys 2020; 107:455-461. [PMID: 32251754 DOI: 10.1016/j.ijrobp.2020.03.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/12/2020] [Accepted: 03/16/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE We report the safety data from the first multicenter phase 1 trial investigating the use of hypofractionated proton therapy with concurrent chemotherapy for patients with stage II or III non-small cell lung cancer. METHODS AND MATERIALS From 2013 through 2018, patients with newly diagnosed stage II or III non-small cell lung cancer were enrolled in a multicenter phase 1 clinical trial evaluating concurrent chemotherapy with increasing dose-per-fraction proton therapy. This was a stepwise 5 + 2 dose-intensification protocol with the following dose arms: (1) 2.5 GyRBE per fraction to 60 GyRBE; (2) 3.0 GyRBE per fraction to 60 GyRBE; (3) 3.53 GyRBE per fraction to 60.01 GyRBE; and (4) 4.0 GyRBE per fraction to 60 GyRBE. A dose arm was considered tolerable if no radiation therapy-attributable severe adverse event (SAE) occurred within 90 days of treatment among 5 patients enrolled on the arm or if 1 SAE occurred among 7 patients enrolled. Dose constraints to the heart, brachial plexus, and spinal cord were more conservative at higher doses per fraction. RESULTS The study closed early because of slow accrual and competing enrollment in NRG 1308 before accrual was met, with no maximum tolerated dose identified. Eighteen patients were treated, including 5 patients on arms 1 and 2, 7 patients on arm 3, and 1 patient on arm 4. Two SAEs occurred among 7 patients treated at 3.53 GyRBE per fraction; however, per outside expert review, both were attributed to chemotherapy and unrelated to radiation therapy. CONCLUSIONS Hypofractionated proton therapy delivered at 2.5 to 3.53 GyRBE per fraction to a dose of 60 GyRBE with concurrent chemotherapy has an acceptable toxicity profile. Further exploration of this regimen is warranted on a phase 2 clinical trial.
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Affiliation(s)
- Bradford S Hoppe
- Department of Radiation Oncology, Mayo Clinic, Jacksonville, Florida.
| | - Romaine C Nichols
- Department of Radiation Oncology, University of Florida College of Medicine, Jacksonville, Florida
| | - Stella Flampouri
- Department of Radiation Oncology, Emory Winship Cancer Institute, Atlanta, Georgia
| | - Zuofeng Li
- Department of Radiation Oncology, University of Florida College of Medicine, Jacksonville, Florida
| | - Christopher G Morris
- Department of Radiation Oncology, University of Florida College of Medicine, Jacksonville, Florida
| | - Dat C Pham
- Department of Medical Oncology, University of Florida College of Medicine, Jacksonville, Florida
| | - Pranshu Mohindra
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - William Hartsell
- Department of Radiation Oncology, Northwestern Medicine, Chicago, Illinois
| | | | - Brian H Chon
- ProCure Proton Therapy Center, New Jersey, Somerset, New Jersey
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Wilson JD, Hammond EM, Higgins GS, Petersson K. Ultra-High Dose Rate (FLASH) Radiotherapy: Silver Bullet or Fool's Gold? Front Oncol 2020; 9:1563. [PMID: 32010633 PMCID: PMC6979639 DOI: 10.3389/fonc.2019.01563] [Citation(s) in RCA: 250] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/24/2019] [Indexed: 12/12/2022] Open
Abstract
Radiotherapy is a cornerstone of both curative and palliative cancer care. However, radiotherapy is severely limited by radiation-induced toxicities. If these toxicities could be reduced, a greater dose of radiation could be given therefore facilitating a better tumor response. Initial pre-clinical studies have shown that irradiation at dose rates far exceeding those currently used in clinical contexts reduce radiation-induced toxicities whilst maintaining an equivalent tumor response. This is known as the FLASH effect. To date, a single patient has been subjected to FLASH radiotherapy for the treatment of subcutaneous T-cell lymphoma resulting in complete response and minimal toxicities. The mechanism responsible for reduced tissue toxicity following FLASH radiotherapy is yet to be elucidated, but the most prominent hypothesis so far proposed is that acute oxygen depletion occurs within the irradiated tissue. This review examines the tissue response to FLASH radiotherapy, critically evaluates the evidence supporting hypotheses surrounding the biological basis of the FLASH effect, and considers the potential for FLASH radiotherapy to be translated into clinical contexts.
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Affiliation(s)
- Joseph D. Wilson
- Department of Oncology, The Oxford Institute for Radiation Oncology, University of Oxford, Oxford, United Kingdom
| | - Ester M. Hammond
- Department of Oncology, The Oxford Institute for Radiation Oncology, University of Oxford, Oxford, United Kingdom
| | - Geoff S. Higgins
- Department of Oncology, The Oxford Institute for Radiation Oncology, University of Oxford, Oxford, United Kingdom
| | - Kristoffer Petersson
- Department of Oncology, The Oxford Institute for Radiation Oncology, University of Oxford, Oxford, United Kingdom
- Radiation Physics, Department of Haematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
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Pokhrel D, Halfman M, Sanford L. FFF-VMAT for SBRT of lung lesions: Improves dose coverage at tumor-lung interface compared to flattened beams. J Appl Clin Med Phys 2019; 21:26-35. [PMID: 31859456 PMCID: PMC6964748 DOI: 10.1002/acm2.12764] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/09/2019] [Accepted: 10/07/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose To quantify the differences in dosimetry as a function of ipsilateral lung density and treatment delivery parameters for stereotactic, single dose of volumetric modulated arc therapy (VMAT) lung stereotactic body radiation therapy (SBRT) delivered with 6X flattening filter free (6X‐FFF) beams compared to traditional flattened 6X (6X‐FF) beams. Materials/methods Thirteen consecutive early stage I–II non‐small‐cell‐lung cancer (NSCLC) patients were treated with highly conformal noncoplanar VMAT SBRT plans (3–6 partial arcs) using 6X‐FFF beam and advanced Acuros‐based dose calculations to a prescription dose of 30 Gy in one fraction to the tumor margin. These clinical cases included relatively smaller tumor (island tumors) sizes (2.0–4.2 cm diameters) and varying average ipsilateral lung densities between 0.14 g/cc and 0.34 g/cc. Treatment plans were reoptimized with 6X‐FF beams for identical beam/arc geometries and planning objectives. For same target coverage, the organs‐at‐risk (OAR) dose metrics as a function of ipsilateral lung density were compared between 6X‐FFF and 6X‐FF plans. Moreover, monitor units (MU), beam modulation factor (MF) and beam‐on time (BOT) were evaluated. Results Both plans met the RTOG‐0915 protocol compliance. The ipsilateral lung density and the tumor location heavily influenced the treatment plans with 6X‐FFF and 6X‐FF beams, showing differences up to 12% for the gradient indices. For similar target coverage, 6X‐FFF beams showed better target conformity, lower intermediate dose‐spillage, and lower dose to the OAR. Additionally, BOT was reduced by a factor of 2.3 with 6X‐FFF beams compared to 6X‐FF beams. Conclusion While prescribing dose to the tumor periphery, 6X‐FFF VMAT plans for stereotactic single‐dose lung SBRT provided similar target coverage with better dose conformity, superior intermediate dose‐spillage (improved dose coverage at tumor interface), and improved OAR sparing compared to traditional 6X‐FF beams and significantly reduced treatment time. The ipsilateral lung density and tumor location considerably affected dose distributions requiring special attention for clinical SBRT plan optimization on a per‐patient basis. Clinical follow up of these patients for tumor local‐control rate and treatment‐related toxicities is in progress.
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Affiliation(s)
- Damodar Pokhrel
- Department of Radiation Medicine, Medical Physics Graduate Program, University of Kentucky, Lexington, KY, USA
| | - Matthew Halfman
- Department of Radiation Medicine, Medical Physics Graduate Program, University of Kentucky, Lexington, KY, USA
| | - Lana Sanford
- Department of Radiation Medicine, Medical Physics Graduate Program, University of Kentucky, Lexington, KY, USA
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Image-guided interstitial high-dose-rate brachytherapy for dose escalation in the radiotherapy treatment of locally advanced lung cancer: A single-institute experience. Brachytherapy 2019; 18:829-834. [DOI: 10.1016/j.brachy.2019.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 07/02/2019] [Accepted: 08/06/2019] [Indexed: 12/20/2022]
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Lacoppidan T, Vogelius IR, Pøhl M, Strange M, Persson GF, Nygård L. An investigative expansion of a competing risk model for first failure site in locally advanced non-small cell lung cancer. Acta Oncol 2019; 58:1386-1392. [PMID: 31271118 DOI: 10.1080/0284186x.2019.1631475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Introduction: We hypothesized that gross tumor volume (GTV) of primary tumor (GTVT) and nodal volumes (GTVN) were predictors of first failure site in non-small cell lung cancer (NSCLC). We aimed at also comparing the prognostic model's complexity to its ability to generate absolute risk predictions with emphasis on variables available at the time of diagnosis. Materials and methods: Three hundred and forty-two patients treated with definitive chemoradiotherapy (CRT) for adenocarcinoma (AC) or squamous cell carcinoma (SCC) in 2009-2017 were analyzed. Clinical data, standardized uptake values on FDG-PET/CT, GTVT and GTVN were analyzed using multivariate competing risk models. Results: One hundred and thirty-seven patients had SCC. As first site of failure 49 had locoregional failure (LRF), 40 had distant metastasis (DM) and 24 died with no evidence of disease (NED). In 205 patients with AC, 34 had LRF, 118 had DM as first failure site and 17 died with NED. Performance status predicted LRF (p = .02) and UICC stage risk of DM (p = .05 for stage 3, p < .001 for stage 4). Adding histopathology changed predictions with much reduced risk of LRF in AC compared to SCC (HR = 0.5, 95% CI: (0.3-0.75), p = .001). Conversely, AC had a higher rate of DM than SCC (HR = 2.1, 95% CI: (1.5-3.0], p < .001). Addition of FDG metrics and tumor/nodal volume data predicted DM risk (p = .001), but with smaller impact on absolute risk compared to histopathology. Separation of GTV in nodal and tumor lesions did not improve risk predictions. Conclusions: We quantified the effect of adding volumetric and quantitative imaging to competing risk models of first failure site, but did not find tumor volume components to be important. Histopathology remains the simplest and most important factor in prognosticating failure patterns in NSCLC.
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Affiliation(s)
- Thomas Lacoppidan
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ivan R. Vogelius
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health Sciences, Copenhagen University, Denmark
| | - Mette Pøhl
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Malene Strange
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Gitte F. Persson
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health Sciences, Copenhagen University, Denmark
- Department of Oncology, Herlev-Gentofte Hospital, Copenhagen University, Herlev, Denmark
| | - Lotte Nygård
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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Nix MG, Rowbottom CG, Vivekanandan S, Hawkins MA, Fenwick JD. Chemoradiotherapy of locally-advanced non-small cell lung cancer: Analysis of radiation dose-response, chemotherapy and survival-limiting toxicity effects indicates a low α/β ratio. Radiother Oncol 2019; 143:58-65. [PMID: 31439448 DOI: 10.1016/j.radonc.2019.07.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/21/2019] [Accepted: 07/22/2019] [Indexed: 12/25/2022]
Abstract
PURPOSE To analyse changes in 2-year overall survival (OS2yr) with radiotherapy (RT) dose, dose-per-fraction, treatment duration and chemotherapy use, in data compiled from prospective trials of RT and chemo-RT (CRT) for locally-advanced non-small cell lung cancer (LA-NSCLC). MATERIAL AND METHODS OS2yr data was analysed for 6957 patients treated on 68 trial arms (21 RT-only, 27 sequential CRT, 20 concurrent CRT) delivering doses-per-fraction ≤4.0 Gy. An initial model considering dose, dose-per-fraction and RT duration was fitted using maximum-likelihood techniques. Model extensions describing chemotherapy effects and survival-limiting toxicity at high doses were assessed using likelihood-ratio testing, the Akaike Information Criterion (AIC) and cross-validation. RESULTS A model including chemotherapy effects and survival-limiting toxicity described the data significantly better than simpler models (p < 10-14), and had better AIC and cross-validation scores. The fitted α/β ratio for LA-NSCLC was 4.0 Gy (95%CI: 2.8-6.0 Gy), repopulation negated 0.38 (95%CI: 0.31-0.47) Gy EQD2/day beyond day 12 of RT, and concurrent CRT increased the effective tumour EQD2 by 23% (95%CI: 16-31%). For schedules delivered in 2 Gy fractions over 40 days, maximum modelled OS2yr for RT was 52% and 38% for stages IIIA and IIIB NSCLC respectively, rising to 59% and 42% for CRT. These survival rates required 80 and 87 Gy (RT or sequential CRT) and 67 and 73 Gy (concurrent CRT). Modelled OS2yr rates fell at higher doses. CONCLUSIONS Fitted dose-response curves indicate that gains of ~10% in OS2yr can be made by escalating RT and sequential CRT beyond 64 Gy, with smaller gains for concurrent CRT. Schedule acceleration achieved via hypofractionation potentially offers an additional 5-10% improvement in OS2yr. Further 10-20% OS2yr gains might be made, according to the model fit, if critical normal structures in which survival-limiting toxicities arise can be identified and selectively spared.
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Affiliation(s)
- Michael G Nix
- Department of Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, United Kingdom.
| | - Carl G Rowbottom
- Department of Physics, Clatterbridge Cancer Centre, Wirral, United Kingdom; Department of Physics, University of Liverpool, Oliver Lodge Laboratory, Liverpool, United Kingdom
| | - Sindu Vivekanandan
- Guy's Hospital Cancer Centre, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Maria A Hawkins
- Department of Oncology, University of Oxford, United Kingdom
| | - John D Fenwick
- Department of Physics, Clatterbridge Cancer Centre, Wirral, United Kingdom; Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, United Kingdom
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Valeriani M, Marinelli L, Nicosia L, Reverberi C, De Sanctis V, Mollo D, Osti MF. Locally advanced inoperable primary or recurrent non-small cell lung cancer treated with 4-week hypofractionated radiation therapy (3 Gy/fraction). Radiol Med 2019; 124:1324-1332. [PMID: 31317381 DOI: 10.1007/s11547-019-01064-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/07/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND The prognosis of locally advanced non-small cell lung cancer (NSCLC) treated with conventional radiotherapy remains poor. Hypofractionation reduces overall treatment time increasing biological effect in patients not suitable for concurrent chemo-radiotherapy. METHOD From January 2009 to October 2016, 76 inoperable locally advanced primary or recurrent NSCLC patients were treated with 60 Gy in 20 fractions of 3 Gy/each for 4 weeks as exclusive or post-chemotherapy treatment. Fifty-eight patients (76.3%) had stage III and 18 (23.7%) stage IV (≤ 2 metastases) disease: 63 primary (82.9%) and 13 recurrent (17.1%). RESULTS Median and 2-year overall survival were 17 months and 38.9%, respectively. Median and 2-year loco-regional progression free survival were 27 months and 55.3%, respectively. Univariate and multivariate analyses demonstrated that patients with complete response presented better outcomes, whereas no statistically relevant difference was evidenced in terms of previous chemotherapy, recurrent vs primary disease, volume and stage. Thirty patients (39.5%) presented acute esophagitis (1-grade 3) and 19 (25.0%) acute pneumonitis (2-grade 3). Six patients (7.9%) developed grade 2-3 late pneumonitis and 3 patients (3.9%) grade 1 late esophagitis. CONCLUSION In patients not suitable of concurrent radio-chemotherapy, exclusive or sequential hypofractionated schedule using 60 Gy in 20 fractions was well tolerated and presented promising results. Complete local response was a predictor of better outcomes, and any efforts will be made to perform prospective clinical trials to further evaluate hypofractionated regimens with increased lesional BED.
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Affiliation(s)
- Maurizio Valeriani
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy.
| | - Luca Marinelli
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Luca Nicosia
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Chiara Reverberi
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Vitaliana De Sanctis
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Davide Mollo
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Mattia Falchetto Osti
- Department of Radiation Oncology, Sant' Andrea Hospital, "Sapienza" University, Via di Grottarossa 1035-1039, 00189, Rome, Italy
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Accelerated hypofractionated radiotherapy plus chemotherapy for inoperable locally advanced non-small-cell lung cancer: final results of a prospective phase-II trial with a long-term follow-up. Radiat Oncol 2019; 14:112. [PMID: 31234868 PMCID: PMC6591967 DOI: 10.1186/s13014-019-1317-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 06/06/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Concurrent chemotherapy and radiation using conventional fractionation is the standard treatment for inoperable, locally advanced non-small-cell lung cancer (NSCLC). We tested accelerated hypofractionated radiotherapy (AHR) and chemotherapy for the treatment of locally advanced NSCLC. METHODS Eligible patients with locally advanced NSCLC were treated with induction chemotherapy (cisplatin and docetaxel), followed by AHR using tomotherapy and consolidation chemotherapy. The prescribed doses were 30 Gy/5 daily fractions at the reference isodose (60-70%) to the tumor, and 25 Gy/5 daily fractions to the clinically involved lymph nodes. The primary end-point was response rate (RR); the secondary end-points were acute and late side-effects, local progression-free survival (PFS), metastasis-free survival (MFS) and overall survival (OS). This trial closed before the first planned interim analysis due to poor accrual. RESULTS From January 2009 to January 2012, 17 of the 23 enrolled patients were evaluable. Treatment yielded an overall RR of 82%. Median follow-up was 87 months (range: 6-87), local PFS was 19.8 months (95% CI 9.7 - not reached), MFS was 9.7 months (95% CI 5.8-46.0) and OS was 23 months (95% CI 8.4-48.4). 70% of patients experienced acute G4 neutropenia, 24% G4 leukopenia, 24% G3 paresthesia, 4% G3 cardiac arrythmia, 4% underwent death after chemotherapy. Late toxicity was represented by 24% dyspnea G3. CONCLUSIONS AHR combined with chemotherapy is feasible with no severe side-effects, and it appears highly acceptable by patients. TRIAL REGISTRATION This study is registered with the EudractCT registration 2008-006525-14 . Registered on 9 December 2008.
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Zhao Q, Chen G, Ye L, Shi S, Du S, Zeng Z, He J. Treatment-duration is related to changes in peripheral lymphocyte counts during definitive radiotherapy for unresectable stage III NSCLC. Radiat Oncol 2019; 14:86. [PMID: 31133034 PMCID: PMC6537222 DOI: 10.1186/s13014-019-1287-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 04/29/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND To investigate the potential impact of fractionation regimes and overall treatment time (OTT) on lymphopenia during definitive radiotherapy (RT) and its associations with patient outcomes in non-small cell lung cancer (NSCLC). METHODS Subjects consisted of 115 patients who had received definitive chemoradiation therapy (CRT) with different doses and fractions for unresectable stage III NSCLC. Clinical and laboratory records were reviewed to assess the changes in total lymphocyte counts (TLCs) during definitive RT. The associations of the TLCs with the clinical and treatment features, and outcomes were analyzed. RESULTS The median reduction of TLCs in the entire cohort was 1300 cells/μL (interquartile range [IQR], 950-1510 cells/μL). Of all patients, 63 (54.8%) experienced severe lymphopenia (SL) (TLC nadir < 500 cells/μL), which occurred at a median of the 5th week following RT initiation, not at the completion of RT or upon treatment with maximal doses. SL risk was increased over the first 5 weeks (odds ratio [OR] = 3.455, P = 0.007), after which, no increased risk was observed (OR = 0.562, P = 0.216). The median TLCs remained low and failed to recover to the initial normal values of their pre-RT level after 2 months of RT completion. Patients without SL exhibited significantly improved progression-free survival (hazard ratio [HR] = 0.544, P = 0.010) and overall survival (HR = 0.463, P = 0.011) after controlling for confounding variables in multivariate analyses. The incidence of SL was significantly lower (71.1% reduction in risk (OR = 0.289, P = 0.007)) in patients who received hypofractionated RT with an OTT within 4 weeks, compared to those who had an OTT of more than 4 weeks (32.1% vs 62.1%, P = 0.006). Multivariate analyses revealed that OTT within 4 weeks (OR = 0.322, P = 0.032) was significantly associated with a decreased risk of developing SL after controlling for confounding factors. CONCLUSIONS Hypofractionated RT was significantly associated with a decreased risk of SL and improved survival during definitive radiotherapy for unresectable stage III NSCLC.
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Affiliation(s)
- Qianqian Zhao
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Gang Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Luxi Ye
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Shiming Shi
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Shisuo Du
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Zhaochong Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
| | - Jian He
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
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Itonaga T, Mikami R, Nakayama H, Saito T, Shiraishi S, Okubo M, Sugahara S, Ikeda N, Tokuuye K. Phase II study of compensator-based non-coplanar intensity-modulated radiotherapy for Stage I non-small-cell lung cancer. JOURNAL OF RADIATION RESEARCH 2019; 60:387-393. [PMID: 31116855 PMCID: PMC6530657 DOI: 10.1093/jrr/rrz009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 01/08/2019] [Indexed: 06/09/2023]
Abstract
We conducted a Phase II study to evaluate the usefulness of compensator-based non-coplanar intensity-modulated radiotherapy (ncIMRT) for patients with surgically inaccessible Stage I non-small-cell lung cancer (NSCLC). Patients with pathologically proven or clinically diagnosed surgically inaccessible Stage I NSCLC were enrolled in this study from May 2011 to April 2014. These patients underwent ncIMRT of 75 Gy in 30 fractions regardless of the tumor location. The primary end point was 3-year overall survival, and the secondary end points were local control rate and treatment-related toxicities. A total of 48 patients (50 tumors) were enrolled in this study. Of the 50 tumors, the Stage T1 to T2 ratio was 31 to 19, and the ratio of tumors located in the central to peripheral areas was 11 to 39. During the median follow-up time of 35.9 months, the 3-year actuarial local progression-free and overall survival rates were 82.6% and 87.1%, respectively. No patients experienced toxicities of Grade 3 or greater. Standard-fractionated ncIMRT was effective and safe for patients with surgically inaccessible stage I NSCLC, regardless of the tumor location.
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Affiliation(s)
- Tomohiro Itonaga
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Ryuji Mikami
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Hidetsugu Nakayama
- Department of Radiation Oncology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjyuku, Tokyo, Japan
| | - Tatsuhiko Saito
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Sachika Shiraishi
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Mitsuru Okubo
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Shinji Sugahara
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Norihiko Ikeda
- Department of Thoracic Surgery, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
| | - Koichi Tokuuye
- Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjyuku,Shinjyuku, Tokyo, Japan
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Gay HA, Santiago R, Gil B, Remedios C, Montes PJ, López-Araujo J, Chévere CM, Imbert WS, White J, Arthur DW, Horton JK, Jagsi R, Rabinovich R, Beriwal S, Viswanathan A, Erickson BA, Rengan R, Palma D, Loo BW, Kavanaugh JA, Bradley J, Yom SS, Harari PM, Lee Burnett O. Lessons Learned From Hurricane Maria in Puerto Rico: Practical Measures to Mitigate the Impact of a Catastrophic Natural Disaster on Radiation Oncology Patients. Pract Radiat Oncol 2019; 9:305-321. [PMID: 30999000 DOI: 10.1016/j.prro.2019.03.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/24/2019] [Accepted: 03/13/2019] [Indexed: 12/25/2022]
Abstract
PURPOSE Although the wind, rain, and flooding of Hurricane Maria in Puerto Rico abated shortly after its landfall on September 20, 2017, the disruption of the electrical, communications, transportation, and medical infrastructure of the island was unprecedented in scope and caused lasting harm for many months afterward. A compilation of recommendations from radiation oncologists who were in Puerto Rico during the disaster, and from a panel of American Society for Radiation Oncology (ASTRO) cancer experts was created. METHODS AND MATERIALS Radiation oncologists throughout Puerto Rico collaborated and improvised to continue treating patients in the immediate aftermath of the storm and as routine clinical operations were restored gradually. Empirical lessons from the experience of radiation therapy administration in this profoundly altered context of limited resources, impaired communication, and inadequate transportation were organized into a recommended template, applicable to any radiation oncology practice. ASTRO disease-site experts provided evidence-guidelines for mitigating the impact of a 2- to 3-week interruption in radiation therapy. RESULTS Practical measures to mitigate the medical impact of a disaster are summarized within the framework of "Prepare, Communicate, Operate, Compensate." Specific measures include the development of an emergency operations plan tailored to specific circumstances, prospective coordination with other radiation oncology clinics before a disaster, ongoing communications with emergency management organizations, and routine practice of alternate methods to disseminate information among providers and patients. CONCLUSIONS These recommendations serve as a starting point to assist any radiation oncology practice in becoming more resiliently prepared for a local or regional disruption from any cause. Disease-site experts provide evidence-based guidelines on how to mitigate the impact of a 2- to 3-week interruption in radiation therapy for lung, head and neck, uterine cervix, breast, and prostate cancers through altered fractionation or dose escalation.
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Affiliation(s)
- Hiram A Gay
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri.
| | | | - Betty Gil
- Radiation Therapy and Cancer Institute, San Juan, Puerto Rico
| | | | - Pedro J Montes
- Northern Radiotherapy Cancer Center, Arecibo, Puerto Rico
| | | | - Carlos M Chévere
- Centro Comprensivo de Cáncer de la Universidad de Puerto Rico, San Juan, Puerto Rico
| | | | - Julia White
- Department of Radiation Oncology, Ohio State University, Columbus, Ohio
| | - Douglas W Arthur
- Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia
| | - Janet K Horton
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Reshma Jagsi
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Rachel Rabinovich
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado
| | | | - Akila Viswanathan
- Johns Hopkins Radiation Oncology and Molecular Radiation Sciences, Baltimore, Maryland
| | - Beth A Erickson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ramesh Rengan
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - David Palma
- London Regional Cancer Program, London, Ontario, Canada
| | - Billy W Loo
- Department of Radiation Oncology & Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California
| | - James A Kavanaugh
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Jeff Bradley
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Sue S Yom
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California
| | - Paul M Harari
- Department of Human Oncology, Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Omer Lee Burnett
- Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, Alabama
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Ma L, Men Y, Feng L, Kang J, Sun X, Yuan M, Jiang W, Hui Z. A current review of dose-escalated radiotherapy in locally advanced non-small cell lung cancer. Radiol Oncol 2019; 53:6-14. [PMID: 30840594 PMCID: PMC6411023 DOI: 10.2478/raon-2019-0006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/05/2019] [Indexed: 12/14/2022] Open
Abstract
Background The mainstay therapy for locally advanced non-small cell lung cancer is concurrent chemoradiotherapy. Loco-regional recurrence constitutes the predominant failure patterns. Previous studies confirmed the relationship between increased biological equivalent doses and improved overall survival. However, the large randomized phase III study, RTOG 0617, failed to demonstrate the benefit of dose-escalation to 74 Gy compared with 60 Gy by simply increasing fraction numbers. Conclusions Though effective dose-escalation methods have been explored, including altered fractionation, adapting individualized increments for different patients, and adopting new technologies and new equipment such as new radiation therapy, no consensus has been achieved yet.
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Affiliation(s)
- Li Ma
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China
| | - Yu Men
- Department of VIP Medical Services, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100021, China
| | - Lingling Feng
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China
| | - Jingjing Kang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100021, China
| | - Xin Sun
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100021, China
| | - Meng Yuan
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100021, China
| | - Wei Jiang
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China
| | - Zhouguang Hui
- Department of VIP Medical Services, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100021, China
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100021, China
- Zhouguang Hui, M.D., Department of VIP Medical Services & Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Panjiayuan Nanli 17, Chaoyang District, Beijing 100021, China. Phone: + 861087787656
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Fakir H, Chen J, Sachs RK. Hypo-fractionated boost in locally advanced non-small cell lung cancer: temporal distribution of boost fractions. Phys Med Biol 2018; 63:235018. [PMID: 30484435 DOI: 10.1088/1361-6560/aaee24] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
To propose new schemas for radiation boosting of primary tumors, in locally advanced non-small cell lung cancers (NSCLC), in conjunction with standard chemoradiotherapy. To investigate the effect of temporal distributions of the boost fractions on tumor control. NSCLC cases, previously treated with 60 Gy in 30 fractions, were retrospectively planned by adding a radiation boost (25 Gy in 5 fractions) to the primary tumor. Several integrated and sequential boosting schedules were considered. Biological doses were calculated for targets and organs at risk (OAR). Tumor control probabilities (TCP) were calculated using an empirical model and a stochastic model that accounts more systematically for tumor growth kinetics and cell kill. For heterogeneous patient populations, the TCPs for different boost schedules ranged from 82% to 84% and from 73% to 74% for integrated and sequential boosting respectively. For individual tumors with specific growth parameters, the TCP varied by up to 19% between the different schedules. The TCP for sequential boosting was expected to be up to 67% lower than front integrated boosting. The gap in TCP between schedules was higher for tumors with higher clonogenic cell numbers, lower radio-sensitivity, shorter doubling times and lower cell loss. The proposed boosting schemas are dosimetrically feasible and biologically effective. We suggest that the boosts are most effective when given during the first week of treatment and least effective when given sequentially after the end of treatment. The effect of boost scheduling and the effectiveness of front boosting are expected to be most significant for tumors with high clonogenic cell numbers, fast growing rates, low cell loss and low radio-sensitivity. Ultimately, animal studies and clinical trials, guided by biology modeling as presented in the present work, will be needed to verify the effectiveness of fine tuning temporal distributions of radiotherapy fractions.
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Affiliation(s)
- H Fakir
- Department of Physics and Engineering, London Health Sciences Centre, London, Ontario, Canada. Department of Medical Biophysics, Western University, London, Ontario, Canada. Author to whom any correspondence should be addressed
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Amin NP, Mohindra P, Jabbour SK. Serum microRNA guiding personalized radiation therapy in non-small cell lung cancer. J Thorac Dis 2018; 10:S4108-S4112. [PMID: 30631568 DOI: 10.21037/jtd.2018.09.143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Neha P Amin
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Pranshu Mohindra
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Salma K Jabbour
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
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