1
|
Yacoub I, Qian JY, Nashed K, Youssef M, Khalil M, Kallini D, Lee NY. Radiation techniques and advancements in nasopharyngeal carcinoma. Oral Oncol 2024; 159:107060. [PMID: 39366056 DOI: 10.1016/j.oraloncology.2024.107060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 09/11/2024] [Accepted: 09/26/2024] [Indexed: 10/06/2024]
Affiliation(s)
- Irini Yacoub
- Department of Radiation Oncology, New York Proton Center, USA
| | - Joshua Y Qian
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Mary Youssef
- Jacobs School of Medicine and Biomedical Science, Buffalo, NY, USA
| | - Mikayla Khalil
- Department of Biological Sciences, University of California, San Diego, USA
| | - Daniel Kallini
- Rowan University School of Osteopathic Medicine, NJ, USA
| | - Nancy Y Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| |
Collapse
|
2
|
Li Y, Guan X, Xing X, Hu C. Survival outcomes and toxicity profiles among patients with nonmetastatic nasopharyngeal carcinoma treated with intensity-modulated radiotherapy (IMRT) versus IMRT + carbon-ion radiotherapy: A propensity score-matched analysis. Head Neck 2024; 46:1766-1776. [PMID: 38591178 DOI: 10.1002/hed.27771] [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: 12/17/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024] Open
Abstract
OBJECTIVES To compare survival outcomes and toxic effects among patients with newly diagnosed nonmetastatic nasopharyngeal carcinoma (NPC) when treated with intensity-modulated radiotherapy (IMRT) versus IMRT + carbon-ion radiotherapy (CIRT). METHODS We performed a retrospective propensity score matching analysis (1:1) of patients treated with IMRT and IMRT + CIRT. Descriptive statistics were used to examine the baseline characteristics of the patients. Survival was estimated using the Kaplan-Meier method. Univariate and multivariable logistic regression analysis were used to identify the independent predictors of survival. We examined the association between risk factors and adverse events (AEs) using chi-square tests. Cox model and logistic regression were used to analyze AEs. RESULTS Hundred and nine patients who received IMRT + CIRT were included and the median follow-up time was 20.6 months (range: 4.6-82 months). There were no statistically significant differences in locoregional failure-free survival, distant metastasis-free survival, disease-free survival, or overall survival between the two groups, but potentially better in IMRT + CIRT group (p > 0.05, respectively). Nodal boost was the only significant factor associated with LRFS and DFS on multivariable analysis. Thirty-seven patients (34.0%) developed grade 3 acute OMs and no grade 4 acute OMs were observed in IMRT + CIRT group. All patients in IMRT + CIRT group developed grade 1 dermatitis; while in the match group, 76 patients developed grade 1 dermatitis, 27 patients developed grade 2 dermatitis, 5 patients developed grade 3 dermatitis, 1 patient developed grade 4 dermatitis. IMRT + CIRT treatment was associated with a significant trend of lower grades of OM and dermatitis (p < 0.05, respectively). Any severe (i.e., grade 3) chronic AEs, such as xerostomia, skin fibrosis, temporal lobe necrosis, osteoradionecrosis, or radiation-induced optic neuropathy, was not observed. CONCLUSIONS In this study, IMRT + CIRT was associated with significantly reduced acute toxicity burden compared with full course of IMRT, with excellent survival outcomes. Patients with persistent disease after treatment and treated with nodal boost had a worse outcome. More accurate assessments of IMRT + CIRT to primary nonmetastatic NPC patients will be imperative.
Collapse
Affiliation(s)
- Yujiao Li
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Shanghai, China
| | - Xiyin Guan
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Xing Xing
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Shanghai, China
| | - Chaosu Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Shanghai, China
| |
Collapse
|
3
|
Cantù G. Nasopharyngeal carcinoma. A "different" head and neck tumour. Part B: treatment, prognostic factors, and outcomes. ACTA OTORHINOLARYNGOLOGICA ITALICA : ORGANO UFFICIALE DELLA SOCIETA ITALIANA DI OTORINOLARINGOLOGIA E CHIRURGIA CERVICO-FACCIALE 2023; 43:155-169. [PMID: 37204840 DOI: 10.14639/0392-100x-n2223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 01/08/2023] [Indexed: 05/20/2023]
Affiliation(s)
- Giulio Cantù
- Former Director of Otorhinolaryngology and Cranio-Maxillo-Facial Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| |
Collapse
|
4
|
Sommat K, Tong AKT, Ong ALK, Hu J, Sin SY, Lam WWC, Xie W, Khor YM, Lim C, Lim TW, Selvarajan S, Wang F, Tan TWK, Wee JTS, Soong YL, Fong KW, Hennedige T, Hua TC. 18F-FMISO PET-guided dose escalation with multifield optimization intensity-modulated proton therapy in nasopharyngeal carcinoma. Asia Pac J Clin Oncol 2023. [PMID: 37157884 DOI: 10.1111/ajco.13953] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 02/13/2023] [Accepted: 03/22/2023] [Indexed: 05/10/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the radiotherapy planning feasibility of dose escalation with intensity-modulated proton therapy (IMPT) to hypoxic tumor regions identified on 18F-Fluoromisonidazole (FMISO) positron emission tomography and computed tomography (PET-CT) in NPC. MATERIALS AND METHODS Nine patients with stages T3-4N0-3M0 NPC underwent 18F-FMISO PET-CT before and during week 3 of radiotherapy. The hypoxic volume (GTVhypo) is automatically generated by applying a subthresholding algorithm within the gross tumor volume (GTV) with a tumor to muscle standardized uptake value (SUV) ratio of 1.3 on the 18F-FMISO PET-CT scan. Two proton plans were generated for each patient, a standard plan to 70 Gy and dose escalation plan with upfront boost followed by standard 70GyE plan. The stereotactic boost was planned with single-field uniform dose optimization using two fields to deliver 10 GyE in two fractions to GTVhypo. The standard plan was generated with IMPT with robust optimization to deliver 70GyE, 60GyE in 33 fractions using simultaneous integrated boost technique. A plan sum was generated for assessment. RESULTS Eight of nine patients showed tumor hypoxia on the baseline 18F-FMISO PET-CT scan. The mean hypoxic tumor volume was 3.9 cm3 (range .9-11.9cm3 ). The average SUVmax of the hypoxic volume was 2.2 (range 1.44-2.98). All the dose-volume parameters met the planning objectives for target coverage. Dose escalation was not feasible in three of eight patients as the D0.03cc of temporal lobe was greater than 75GyE. CONCLUSIONS The utility of boost to the hypoxic volume before standard course of radiotherapy with IMPT is dosimetrically feasible in selected patients. Clinical trials are warranted to determine the clinical outcomes of this approach.
Collapse
Affiliation(s)
- Kiattisa Sommat
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Aaron Kian Ti Tong
- Department of Nuclear Medicine and Molecular Imaging, Singapore General Hospital, Singapore, Singapore
| | - Ashley Li Kuan Ong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Jing Hu
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Sze Yarn Sin
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Winnie Wing Chuen Lam
- Department of Nuclear Medicine and Molecular Imaging, Singapore General Hospital, Singapore, Singapore
| | - Wanying Xie
- Department of Nuclear Medicine and Molecular Imaging, Singapore General Hospital, Singapore, Singapore
| | - Yiu Ming Khor
- Department of Nuclear Medicine and Molecular Imaging, Singapore General Hospital, Singapore, Singapore
| | - Cindy Lim
- Division of Clinical Trials and Epidemiological Sciences, National Cancer Centre Singapore, Singapore, Singapore
| | - Tze Wei Lim
- Division of Clinical Trials and Epidemiological Sciences, National Cancer Centre Singapore, Singapore, Singapore
| | - Sathiyamoorthy Selvarajan
- Department of Nuclear Medicine and Molecular Imaging, Singapore General Hospital, Singapore, Singapore
| | - Fuqiang Wang
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Terence Wee Kiat Tan
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Joseph Tien Seng Wee
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Yoke Lim Soong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Kam Weng Fong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Tiffany Hennedige
- Division of Oncologic Imaging, National Cancer Centre Singapore, Singapore, Singapore
| | - Thng Choon Hua
- Division of Oncologic Imaging, National Cancer Centre Singapore, Singapore, Singapore
| |
Collapse
|
5
|
Kim KN, Harton J, Mitra N, Lukens JN, Lin A, Amaniera I, Doucette A, Gabriel P, Baumann B, Metz J, Wojcieszynski A. Acute toxicity in patients treated with concurrent chemoradiotherapy with proton versus intensity-modulated radiation therapy for nonmetastatic head and neck cancers. Head Neck 2022; 44:2386-2394. [PMID: 35822438 DOI: 10.1002/hed.27146] [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: 01/31/2022] [Revised: 06/10/2022] [Accepted: 06/28/2022] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND We evaluated if proton therapy is associated with decreased acute toxicities compared to intensity-modulated radiation therapy (IMRT) in patients receiving concurrent chemoradiotherapy for head and neck cancers. METHODS We analyzed 580 patients with nonmetastatic head and neck cancers. Primary endpoint was any 90-day grade ≥3 toxicity, prospectively collected and graded per CTCAEv4. Modified Poisson regression models were used. RESULTS Ninety-five patients received proton and 485 IMRT. The proton group had more HPV-positive tumors (65.6 vs. 58.0%, p = 0.049), postoperative treatment (76.8 vs. 62.1%, p = 0.008), unilateral neck treatment (18.9 vs. 6.6%, p < 0.001) and significantly lower doses to organs-at-risk compared to IMRT group. Adjusted for patient and treatment characteristics, the proton group had decreased grade 2 dysgeusia (RR0.67, 95%CI 0.53-0.84, p = 0.004) and a trend toward lower grade ≥3 toxicities (RR0.60, 95%CI 0.41-0.88, p = 0.06). CONCLUSIONS Proton therapy was associated with significantly reduced grade 2 dysgeusia and nonstatistically significant decrease in acute grade ≥3 toxicities compared to IMRT.
Collapse
Affiliation(s)
- Kristine N Kim
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Joanna Harton
- Division of Biostatistics, Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Nandita Mitra
- Division of Biostatistics, Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - John N Lukens
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Alexander Lin
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Isabella Amaniera
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Abigail Doucette
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Peter Gabriel
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Brian Baumann
- Department of Radiation Oncology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, USA
| | - James Metz
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Andrzej Wojcieszynski
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| |
Collapse
|
6
|
Liu CH, Huang BS, Lin CY, Yeh CH, Lee TH, Wu HC, Chang CH, Chang TY, Huang KL, Jiang JL, Chang JTC, Chang YJ. Head and Neck Cancer Types and Risks of Cervical-Cranial Vascular Complications within 5 Years after Radiation Therapy. J Pers Med 2022; 12:jpm12071060. [PMID: 35887557 PMCID: PMC9317699 DOI: 10.3390/jpm12071060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 11/24/2022] Open
Abstract
Background and purpose: to investigate the frequency of cervical−cranial vascular complications soon after radiation therapy (RT) and identify differences among patients with various types of head and neck cancer (HNC). Methods: We enrolled 496 patients with HNC who had received their final RT dose in our hospital. These patients underwent carotid duplex ultrasound (CDU) for monitoring significant carotid artery stenosis (CAS). Brain imaging were reviewed to detect vertebral, intracranial artery stenosis, or preexisted CAS before RT. Primary outcome was significant CAS at the internal or common carotid artery within first 5 years after RT. We categorized the patients into nasopharyngeal carcinoma (NPC) and non-NPC groups and compared the cumulative occurrence of significant CAS between the groups using Kaplan−Meier and Cox-regression analyses. Results: Compared to the NPC group, the non-NPC group had a higher frequency of significant CAS (12.7% vs. 2.0%) and were more commonly associated with significant CAS after adjusting the covariates (Adjusted hazard ratio: 0.17, 95% confident interval: 0.05−0.57) during the follow-up period. All the non-NPC subtypes (oral cancer/oropharyngeal, hypopharyngeal, and laryngeal cancers) were associated with higher risks of significant CAS than the NPC group (p < 0.001 respectively). Conclusion: Significant CAS was more frequently noted within 5 years of RT among the patients with non-NPC HNC than among the patients with NPC. Scheduled carotid artery surveillance and vascular risk monitoring should be commenced earlier for patients with non-NPC HNC. By contrast, vascular surveillance could be deferred to 5 years after RT completion in NPC patients.
Collapse
Affiliation(s)
- Chi-Hung Liu
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
| | - Bing-Shen Huang
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan 33333, Taiwan
| | - Chien-Yu Lin
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan 33333, Taiwan
- Taipei Chang Gung Head & Neck Oncology Group, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan 33333, Taiwan
- Particle Physics and Beam Delivery Core Laboratory of Institute for Radiological Research, Chang Gung Memorial Hospital, Chang Gung University, Linkou Medical Center, Taoyuan 33333, Taiwan
| | - Chih-Hua Yeh
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
- Department of Neuroradiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan
| | - Tsong-Hai Lee
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
| | - Hsiu-Chuan Wu
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
| | - Chien-Hung Chang
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
| | - Ting-Yu Chang
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
| | - Kuo-Lun Huang
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
| | - Jian-Lin Jiang
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
| | - Joseph Tung-Chieh Chang
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan 33333, Taiwan
- Taipei Chang Gung Head & Neck Oncology Group, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan 33333, Taiwan
- Correspondence: (J.T.-C.C.); (Y.-J.C.)
| | - Yeu-Jhy Chang
- Stroke Center, Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33333, Taiwan; (C.-H.L.); (T.-H.L.); (H.-C.W.); (C.-H.C.); (T.-Y.C.); (K.-L.H.); (J.-L.J.)
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33333, Taiwan; (B.-S.H.); (C.-Y.L.); (C.-H.Y.)
- Chang Gung Medical Education Research Centre, Taoyuan 33333, Taiwan
- Correspondence: (J.T.-C.C.); (Y.-J.C.)
| |
Collapse
|
7
|
Nuyts S, Bollen H, Ng SP, Corry J, Eisbruch A, Mendenhall WM, Smee R, Strojan P, Ng WT, Ferlito A. Proton Therapy for Squamous Cell Carcinoma of the Head and Neck: Early Clinical Experience and Current Challenges. Cancers (Basel) 2022; 14:cancers14112587. [PMID: 35681568 PMCID: PMC9179360 DOI: 10.3390/cancers14112587] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 11/19/2022] Open
Abstract
Simple Summary Proton therapy is a promising type of radiation therapy used to destroy tumor cells. It has the potential to further improve the outcomes for patients with head and neck cancer since it allows to minimize the radiation dose to vital structures around the tumor, leading to less toxicity. This paper describes the current experience worldwide with proton therapy in head and neck cancer. Abstract Proton therapy (PT) is a promising development in radiation oncology, with the potential to further improve outcomes for patients with squamous cell carcinoma of the head and neck (HNSCC). By utilizing the finite range of protons, healthy tissue can be spared from beam exit doses that would otherwise be irradiated with photon-based treatments. Current evidence on PT for HNSCC is limited to comparative dosimetric analyses and retrospective single-institution series. As a consequence, the recognized indications for the reimbursement of PT remain scarce in most countries. Nevertheless, approximately 100 PT centers are in operation worldwide, and initial experiences for HNSCC are being reported. This review aims to summarize the results of the early clinical experience with PT for HNSCC and the challenges that are currently faced.
Collapse
Affiliation(s)
- Sandra Nuyts
- Laboratory of Experimental Radiotherapy, Department of Oncology, Katholieke Universiteit Leuven, 3000 Leuven, Belgium;
- Department of Oncology, Leuven Cancer Institute, Universitair Ziekenhuis Leuven, 3000 Leuven, Belgium
- Correspondence:
| | - Heleen Bollen
- Laboratory of Experimental Radiotherapy, Department of Oncology, Katholieke Universiteit Leuven, 3000 Leuven, Belgium;
- Department of Oncology, Leuven Cancer Institute, Universitair Ziekenhuis Leuven, 3000 Leuven, Belgium
| | - Sweet Ping Ng
- Department of Radiation Oncology, Austin Health, The University of Melbourne, Melbourne, VIC 3000, Australia;
| | - June Corry
- Division of Medicine, Department of Radiation Oncology, St. Vincent’s Hospital, The University of Melbourne, Melbourne, VIC 3000, Australia;
| | - Avraham Eisbruch
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, USA;
| | - William M Mendenhall
- Department of Radiation Oncology, College of Medicine, University of Florida, Gainesville, FL 32209, USA;
| | - Robert Smee
- Department of Radiation Oncology, The Prince of Wales Cancer Centre, Sydney, NSW 2031, Australia;
| | - Primoz Strojan
- Department of Radiation Oncology, Institute of Oncology, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Wai Tong Ng
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China;
| | - Alfio Ferlito
- Coordinator of the International Head and Neck Scientific Group, 35125 Padua, Italy;
| |
Collapse
|
8
|
Vai A, Molinelli S, Rossi E, Iacovelli NA, Magro G, Cavallo A, Pignoli E, Rancati T, Mirandola A, Russo S, Ingargiola R, Vischioni B, Bonora M, Ronchi S, Ciocca M, Orlandi E. Proton Radiation Therapy for Nasopharyngeal Cancer Patients: Dosimetric and NTCP Evaluation Supporting Clinical Decision. Cancers (Basel) 2022; 14:cancers14051109. [PMID: 35267415 PMCID: PMC8909055 DOI: 10.3390/cancers14051109] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/09/2022] [Accepted: 02/18/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: we proposed an integrated strategy to support clinical allocation of nasopharyngeal patients between proton and photon radiotherapy. (2) Methods: intensity-modulated proton therapy (IMPT) plans were optimized for 50 consecutive nasopharyngeal carcinoma (NPC) patients treated with volumetric modulated arc therapy (VMAT), and differences in dose and normal tissue complication probability (ΔNTCPx-p) for 16 models were calculated. Patient eligibility for IMPT was assessed using a model-based selection (MBS) strategy following the results for 7/16 models describing the most clinically relevant endpoints, applying a model-specific ΔNTCPx-p threshold (15% to 5% depending on the severity of the complication) and a composite threshold (35%). In addition, a comprehensive toxicity score (CTS) was defined as the weighted sum of all 16 ΔNTCPx-p, where weights follow a clinical rationale. (3) Results: Dose deviations were in favor of IMPT (ΔDmean ≥ 14% for cord, esophagus, brainstem, and glottic larynx). The risk of toxicity significantly decreased for xerostomia (-12.5%), brain necrosis (-2.3%), mucositis (-3.2%), tinnitus (-8.6%), hypothyroidism (-9.3%), and trismus (-5.4%). There were 40% of the patients that resulted as eligible for IMPT, with a greater advantage for T3-T4 staging. Significantly different CTS were observed in patients qualifying for IMPT. (4) Conclusions: The MBS strategy successfully drives the clinical identification of NPC patients, who are most likely to benefit from IMPT. CTS summarizes well the expected global gain.
Collapse
Affiliation(s)
- Alessandro Vai
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
- Correspondence: (A.V.); (N.A.I.); Tel.: +39-0382-078-505 (A.V.)
| | - Silvia Molinelli
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Eleonora Rossi
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Nicola Alessandro Iacovelli
- Radiotherapy Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano (INT), 20133 Milan, Italy; (A.C.); (E.P.); (T.R.); (A.M.)
- Correspondence: (A.V.); (N.A.I.); Tel.: +39-0382-078-505 (A.V.)
| | - Giuseppe Magro
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Anna Cavallo
- Radiotherapy Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano (INT), 20133 Milan, Italy; (A.C.); (E.P.); (T.R.); (A.M.)
| | - Emanuele Pignoli
- Radiotherapy Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano (INT), 20133 Milan, Italy; (A.C.); (E.P.); (T.R.); (A.M.)
| | - Tiziana Rancati
- Radiotherapy Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano (INT), 20133 Milan, Italy; (A.C.); (E.P.); (T.R.); (A.M.)
| | - Alfredo Mirandola
- Radiotherapy Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano (INT), 20133 Milan, Italy; (A.C.); (E.P.); (T.R.); (A.M.)
| | - Stefania Russo
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Rossana Ingargiola
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Barbara Vischioni
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Maria Bonora
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Sara Ronchi
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Mario Ciocca
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| | - Ester Orlandi
- Radiotherapy Department, Center for National Oncological Hadrontherapy (CNAO), 27100 Pavia, Italy; (S.M.); (E.R.); (G.M.); (S.R.); (R.I.); (B.V.); (M.B.); (S.R.); (M.C.); (E.O.)
| |
Collapse
|
9
|
Rakesh A, Goyal J, Soni S, Abhilasha, Rastogi K. A comparative study of planning and dosimetry in locally advanced head-and-neck cancer: sequential versus simultaneous integrated boost methods in intensity-modulated radiotherapy. JOURNAL OF RADIATION AND CANCER RESEARCH 2022. [DOI: 10.4103/jrcr.jrcr_46_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
10
|
Li G, Xia YF, Huang YX, Okat D, Qiu B, Doyen J, Bondiau PY, Benezery K, Gao J, Qian CN. Intensity-modulated proton radiation therapy as a radical treatment modality for nasopharyngeal carcinoma in China: A cost-effectiveness analysis. Head Neck 2021; 44:431-442. [PMID: 34837286 DOI: 10.1002/hed.26941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/11/2021] [Accepted: 11/10/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Compared to conventional intensity-modulated photon radiation therapy (IMRT), intensity-modulated proton radiation therapy (IMPT) has potential to reduce irradiation-induced late toxicities while maintaining excellent tumor control in patients with nasopharyngeal carcinoma (NPC). However, the relevant cost-effectiveness remains controversial. METHODS A Markov decision tree analysis was performed under the assumption that IMPT offered normal tissue complication probability reduction (NTCP reduction) in long-term dysphagia, xerostomia, and hearing loss, compared to IMRT. Base-case evaluation was performed on T2N2M0 NPC of median age (43 years old). A Chinese societal willingness-to-pay threshold (33558 US dollars [$])/quality-adjusted life-year [QALY]) was adopted. RESULTS For patients at median age and having NTCP reduction of 10%, 20%, 30%, 40%, 50%, and 60%, their incremental cost-effectiveness ratios were $102684.0/QALY, $43161.2/QALY, $24134.7/QALY, $13991.6/QALY, $8259.8/QALY, and $4436.1/QALY, respectively; IMPT should provide an NTCP reduction of ≥24% to be considered cost-effective. CONCLUSIONS IMPT has potential to be cost-effective for average Chinese NPC patients and should be validated clinically.
Collapse
Affiliation(s)
- Guo Li
- Department of Radiation Oncology, Guangzhou Concord Cancer Center, Guangzhou, China.,Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Yun-Fei Xia
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yi-Xiang Huang
- Department of Health Management, Public Health Institute of Sun Yat-sen University, Guangzhou, China
| | - Deniz Okat
- Department of Finance, Hong Kong University of Science and Technology, Hong Kong, China
| | - Bo Qiu
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jerome Doyen
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France.,Mediterranean Institute of Proton Therapy, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Pierre-Yves Bondiau
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France.,Mediterranean Institute of Proton Therapy, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Karen Benezery
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France.,Mediterranean Institute of Proton Therapy, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Jin Gao
- Division of Life Sciences and Medicine, Department of Radiation Oncology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Chao-Nan Qian
- Department of Radiation Oncology, Guangzhou Concord Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| |
Collapse
|
11
|
Zhu QY, Zhao GX, Li Y, Talakatta G, Mai HQ, Le QT, Young LS, Zeng MS. Advances in pathogenesis and precision medicine for nasopharyngeal carcinoma. MedComm (Beijing) 2021; 2:175-206. [PMID: 34766141 PMCID: PMC8491203 DOI: 10.1002/mco2.32] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a squamous carcinoma with apparent geographical and racial distribution, mostly prevalent in East and Southeast Asia, particularly concentrated in southern China. The epidemiological trend over the past decades has suggested a substantial reduction in the incidence rate and mortality rate due to NPC. These results may reflect changes in lifestyle and environment, and more importantly, a deeper comprehension of the pathogenic mechanism of NPC, leading to much progress in the preventing, screening, and treating for this cancer. Herein, we present the recent advances on the key signal pathways involved in pathogenesis of NPC, the mechanism of Epstein‐Barr virus (EBV) entry into the cell, and the progress of EBV vaccine and screening biomarkers. We will also discuss in depth the development of various therapeutic approaches including radiotherapy, chemotherapy, surgery, targeted therapy, and immunotherapy. These research advancements have led to a new era of precision medicine in NPC.
Collapse
Affiliation(s)
- Qian-Ying Zhu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Sun Yat-sen University Cancer Center (SYSUCC) Guangzhou China
| | - Ge-Xin Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Sun Yat-sen University Cancer Center (SYSUCC) Guangzhou China
| | - Yan Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Sun Yat-sen University Cancer Center (SYSUCC) Guangzhou China
| | - Girish Talakatta
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Sun Yat-sen University Cancer Center (SYSUCC) Guangzhou China
| | - Hai-Qiang Mai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Sun Yat-sen University Cancer Center (SYSUCC) Guangzhou China
| | - Quynh-Thu Le
- Department of Radiation Oncology Stanford California
| | - Lawrence S Young
- Warwick Medical School University of Warwick Coventry United Kingdom
| | - Mu-Sheng Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Sun Yat-sen University Cancer Center (SYSUCC) Guangzhou China
| |
Collapse
|
12
|
Williams VM, Parvathaneni U, Laramore GE, Aljabab S, Wong TP, Liao JJ. Intensity-Modulated Proton Therapy for Nasopharynx Cancer: 2-year Outcomes from a Single Institution. Int J Part Ther 2021; 8:28-40. [PMID: 34722809 PMCID: PMC8489486 DOI: 10.14338/ijpt-20-00057.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/22/2021] [Indexed: 01/07/2023] Open
Abstract
Purpose Advances in radiotherapy have improved tumor control and reduced toxicity in the management of nasopharyngeal carcinoma (NPC). Local failure remains a problem for some patients with advanced primary tumors, and toxicities are significant given the large treatment volume and tumor proximity to critical structures, even with modern photon-based radiotherapy. Proton therapy has unique dosimetric advantages, and recent technological advances now allow delivery of intensity-modulated proton therapy (IMPT), which can potentially improve the therapeutic ratio in NPC. We report our 2-year clinical outcomes with IMPT for NPC. Materials and Methods We retrospectively reviewed treatment records of patients with NPC treated with IMPT at our center. Demographics, dosimetry, tumor response, local regional control (LRC), distant metastasis, overall survival, and acute and late toxicity outcomes were reviewed. Analyses were performed with descriptive statistics and Kaplan-Meier method. Toxicity was graded per Common Terminology Criteria for Adverse Events (version 4.0). Results Twenty-six patients were treated from 2015 to 2020. Median age was 48 years (range, 19–73 years), 62% (n = 16) had T3-T4 disease, 92% (n = 24) were node positive, 92% (n = 24) had stage III-IV disease, and 69% (n = 18) had positive results for Epstein-Barr virus. Dose-painted pencil-beam IMPT was used. Most patients (85%; 22 of 26) were treated with 70 Gy(RBE) in 33 fractions once daily; 4 (15%) underwent hyperfractionated accelerated treatment twice daily. All received concurrent cisplatin chemotherapy; 7 (27%) also received induction chemotherapy. All patients (100%) completed the planned radiotherapy, and no acute or late grade 4 or 5 toxicities were observed. At median follow-up of 25 months (range, 4-60), there were 2 local regional failures (8%) and 3 distant metastases (12%). The Kaplan-Meier 2-year LRC, freedom from distant metastasis, and overall survival were 92%, 87%, and 85% respectively. Conclusion IMPT is feasible in locally advanced NPC with early outcomes demonstrating excellent LRC and favorable toxicity profile. Our data add to the growing body of evidence supporting the clinical use of IMPT for NPC.
Collapse
Affiliation(s)
- Vonetta M Williams
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | | | - George E Laramore
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | - Saif Aljabab
- Department of Radiation Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Tony P Wong
- Seattle Cancer Care Alliance Proton Therapy Center, Seattle, WA, USA
| | - Jay J Liao
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| |
Collapse
|
13
|
Chou YC, Fan KH, Lin CY, Hung TM, Huang BS, Chang KP, Kang CJ, Huang SF, Chang PH, Hsu CL, Wang HM, Hsieh JCH, Cheng AJ, Chang JTC. Intensity Modulated Proton Beam Therapy versus Volumetric Modulated Arc Therapy for Patients with Nasopharyngeal Cancer: A Propensity Score-Matched Study. Cancers (Basel) 2021; 13:cancers13143555. [PMID: 34298769 PMCID: PMC8307135 DOI: 10.3390/cancers13143555] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
(1) Background: We compared the outcomes of patients with nasopharyngeal carcinoma treated with IMPT and VMAT. (2) Methods: We performed a retrospective propensity score matching analysis (1:1) of patients treated with IMPT (years: 2016-2018) and VMAT (2014-2018). Survival was estimated using the Kaplan-Meier method. Multivariate Cox proportional hazards regression analysis was used to identify the independent predictors of survival. Binary toxicity endpoint analyses were performed using a Cox model and logistic regression. (3) Results: Eighty patients who received IMPT and VMAT were included. The median follow-up time was 24.1 months in the IMPT group. Progression-free survival (PFS) and overall survival (OS) were not statistically different between the two groups but potentially better in IMPT group. In multivariate analysis, advanced N-stage and body weight loss (BWL; >7%) during radiotherapy were associated with decreased PFS. The IMPT group had significantly less requirement for nasogastric (NG) tube placement and BWL during treatment. The mean oral cavity dose was the only predictive factor in stepwise regression analysis, and IMPT required a significantly lower mean dose. However, IMPT increased the grade 3 radiation dermatitis. (4) Conclusions: IMPT is associated with reduced rates of NG tube insertion and BWL through reducing oral mean dose, potentially producing better oncologic outcomes.
Collapse
Affiliation(s)
- Yung-Chih Chou
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
- Department of Radiation Oncology, New Taipei Municipal Tucheng Hospital, New Taipei City 236, Taiwan
| | - Kang-Hsing Fan
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
- Department of Radiation Oncology, New Taipei Municipal Tucheng Hospital, New Taipei City 236, Taiwan
| | - Chien-Yu Lin
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
| | - Tsung-Min Hung
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
| | - Bing-Shen Huang
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
| | - Kai-Ping Chang
- Department of Otolaryngology-Head Neck Surgery, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (K.-P.C.); (C.-J.K.); (S.-F.H.); (P.-H.C.)
| | - Chung-Jan Kang
- Department of Otolaryngology-Head Neck Surgery, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (K.-P.C.); (C.-J.K.); (S.-F.H.); (P.-H.C.)
| | - Shiang-Fu Huang
- Department of Otolaryngology-Head Neck Surgery, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (K.-P.C.); (C.-J.K.); (S.-F.H.); (P.-H.C.)
| | - Po-Hung Chang
- Department of Otolaryngology-Head Neck Surgery, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (K.-P.C.); (C.-J.K.); (S.-F.H.); (P.-H.C.)
| | - Cheng-Lung Hsu
- Division of Medical Oncology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (C.-L.H.); (H.-M.W.); (J.C.-H.H.)
| | - Hung-Ming Wang
- Division of Medical Oncology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (C.-L.H.); (H.-M.W.); (J.C.-H.H.)
| | - Jason Chia-Hsun Hsieh
- Division of Medical Oncology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (C.-L.H.); (H.-M.W.); (J.C.-H.H.)
| | - Ann-Joy Cheng
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Joseph Tung-Chieh Chang
- Proton and Radiation Therapy Center, Department of Radiation Oncology, Linkou Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan; (Y.-C.C.); (K.-H.F.); (C.-Y.L.); (T.-M.H.); (B.-S.H.); (A.-J.C.)
- Department of Radiation Oncology, Xiamen Chang Gung Memorial Hospital, Xiamen 361000, China
- Correspondence: ; Tel.: +886-3-3281200 (ext. 7000); Fax: +886-3-3280797
| |
Collapse
|
14
|
Lin A, Chang JHC, Grover RS, Hoebers FJP, Parvathaneni U, Patel SH, Thariat J, Thomson DJ, Langendijk JA, Frank SJ. PTCOG Head and Neck Subcommittee Consensus Guidelines on Particle Therapy for the Management of Head and Neck Tumors. Int J Part Ther 2021; 8:84-94. [PMID: 34285938 PMCID: PMC8270078 DOI: 10.14338/ijpt-20-00071.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 10/30/2020] [Indexed: 12/26/2022] Open
Abstract
Purpose Radiation therapy is a standard modality in the treatment for cancers of the head and neck, but is associated with significant short- and long-term side effects. Proton therapy, with its unique physical characteristics, can deliver less dose to normal tissues, resulting in fewer side effects. Proton therapy is currently being used for the treatment of head and neck cancer, with increasing clinical evidence supporting its use. However, barriers to wider adoption include access, cost, and the need for higher-level evidence. Methods The clinical evidence for the use of proton therapy in the treatment of head and neck cancer are reviewed here, including indications, advantages, and challenges. Results The Particle Therapy Cooperative Group Head and Neck Subcommittee task group provides consensus guidelines for the use of proton therapy for head and neck cancer. Conclusion This report can be used as a guide for clinical use, to understand clinical trials, and to inform future research efforts.
Collapse
Affiliation(s)
| | | | - Ryan S Grover
- University of California-San Diego, San Diego, CA, USA
| | - Frank J P Hoebers
- Department of Radiation Oncology (MAASTRO), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | | | | | - Juliette Thariat
- Radiation Oncology Department, François Baclesse Center/ARCHADE, Normandy University, Caen, France
| | - David J Thomson
- The Christie NHS Foundation Trust, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - Johannes A Langendijk
- Department of Radiation Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Steven J Frank
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| |
Collapse
|
15
|
Bridhikitti J, Viehman JK, Harmsen WS, Amundson AC, Shiraishi S, Mundy DW, Rwigema JCM, McGee LA, Patel SH, Routman DM, Lester SC, Neben-Wittich MA, Garces YI, Ma DJ, Foote RL. Oncologic Outcomes for Head and Neck Skin Malignancies Treated with Protons. Int J Part Ther 2021; 8:294-303. [PMID: 34285955 PMCID: PMC8270091 DOI: 10.14338/ijpt-20-00045.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/12/2021] [Indexed: 11/30/2022] Open
Abstract
Purpose Radiation therapy (RT) is the standard treatment for patients with inoperable skin malignancies of the head and neck region (H&N), and as adjuvant treatment post surgery in patients at high risk for local or regional recurrence. This study reports clinical outcomes of intensity-modulated proton therapy (IMPT) for these malignancies. Materials and Methods We retrospectively reviewed cases involving 47 patients with H&N malignancies of the skin (squamous cell, basal cell, melanoma, Merkel cell, angiosarcoma, other) who underwent IMPT for curative intent between July 2016 and July 2019. Overall survival was estimated via Kaplan-Meier analysis, and oncologic outcomes were reported as cumulative incidence with death as a competing risk. Results The 2-year estimated local recurrence rate, regional recurrence rate, local regional recurrence rate, distant metastasis rate, and overall survival were 11.1% (95% confidence interval [CI], 4.1%-30.3%), 4.4% (95% CI, 1.1%-17.4%), 15.5% (95% CI, 7%-34.3%), 23.4% (95% CI, 5.8%-95.5%), and 87.2% (95% CI, 75.7%-100%), respectively. No patient was reported to have a grade 3 or higher adverse event during the last week of treatment or at the 3-month follow-up visit. Conclusion IMPT is safe and effective in the treatment of skin malignancies of the H&N.
Collapse
Affiliation(s)
| | - Jason K Viehman
- Division of Biomedical Statistics & Informatics, Mayo Clinic, Rochester, MN, USA
| | - W Scott Harmsen
- Department of Biostatistics and Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Adam C Amundson
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Satomi Shiraishi
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Daniel W Mundy
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | | | - Lisa A McGee
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ, USA
| | - Samir H Patel
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ, USA
| | - David M Routman
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Scott C Lester
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | | | - Yolanda I Garces
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Daniel J Ma
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Robert L Foote
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
16
|
Lee A, Kitpanit S, Chilov M, Langendijk JA, Lu J, Lee NY. A Systematic Review of Proton Therapy for the Management of Nasopharyngeal Cancer. Int J Part Ther 2021; 8:119-130. [PMID: 34285941 PMCID: PMC8270076 DOI: 10.14338/ijpt-20-00082.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 11/27/2020] [Indexed: 12/05/2022] Open
Abstract
Purpose With improved technology, more patients with nasopharyngeal cancer (NPC) are receiving definitive treatment with proton therapy, which allows greater sparing of dose to normal tissues without compromising efficacy. As there is no randomized data, the purpose of this study was to systematically review the available literature on proton therapy in this setting, focusing on the toxicity endpoints. Materials and Methods A systematic search using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines was conducted in 5 databases: PubMed, Embase, SCOPUS, Web of Science, and the Cochrane Central Register of Controlled Trials. A total of 491 studies were found on the topic of NPC and proton therapy. Following independent study selection by 2 investigators, 9 studies were found to have sufficient focus and relevance to be incorporated into the systematic review. Results All 9 studies were retrospective and examined only NPC patients except for one that also included paranasal sinus cancer. One study was a reirradiation study. Four studies used 3D or double scatter technique, while all others used intensity-modulated proton therapy. Oncologic outcomes were similar to intensity-modulated radiation therapy (IMRT) rates, with 2-year local and regional progression-free survival (LRFS) ranging from 84% to 100%, 2-year progression-free survival (PFS) ranging from 75% to 88.9%, and 2-year overall survival (OS) ranging from 88% to 95% in the up-front setting. Four comparison studies with IMRT found significantly lower feeding tube rates (20% versus 65%, P = .015; and 14% versus 85%, P < .001) with proton therapy as well as lower mucositis (G2 46% versus 70%, P = .019; and G3 11% versus 76%, P = .0002). All other acute and late effects were largely improved with proton therapy but not statistically significant. Conclusions NPC patients receiving proton therapy maintain good outcomes with improved toxicity profile, likely due to sparing of dose to normal structures. Prospective studies are ongoing to better quantify the magnitude.
Collapse
Affiliation(s)
- Anna Lee
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sarin Kitpanit
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Marina Chilov
- Medical Library, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Johannes A Langendijk
- Department of Radiation Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jiade Lu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai Cancer Hospital, Fudan University, Shanghai, China
| | - Nancy Y Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| |
Collapse
|
17
|
Li X, Kitpanit S, Lee A, Mah D, Sine K, Sherman EJ, Dunn LA, Michel LS, Fetten J, Zakeri K, Yu Y, Chen L, Kang JJ, Gelblum DY, McBride SM, Tsai CJ, Riaz N, Lee NY. Toxicity Profiles and Survival Outcomes Among Patients With Nonmetastatic Nasopharyngeal Carcinoma Treated With Intensity-Modulated Proton Therapy vs Intensity-Modulated Radiation Therapy. JAMA Netw Open 2021; 4:e2113205. [PMID: 34143193 PMCID: PMC8214161 DOI: 10.1001/jamanetworkopen.2021.13205] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
IMPORTANCE Patients with nonmetastatic nasopharyngeal carcinoma (NPC) are primarily treated by radiotherapy with curative intent with or without chemotherapy and often experience substantial treatment-related toxic effects even with modern radiation techniques, such as intensity-modulated radiation therapy (IMRT). Intensity-modulated proton therapy (IMPT) may improve the toxicity profile; however, there is a paucity of data given the limited availability of IMPT in regions with endemic NPC. OBJECTIVE To compare toxic effects and oncologic outcomes among patients with newly diagnosed nonmetastatic NPC when treated with IMPT vs IMRT with or without chemotherapy. DESIGN, SETTING, AND PARTICIPANTS This retrospective cohort study included 77 patients with newly diagnosed nonmetastatic NPC who received curative-intent radiotherapy with IMPT or IMRT at a tertiary academic cancer center from January 1, 2016, to December 31, 2019. Forty-eight patients with Epstein-Barr virus (EBV)-positive tumors were included in a 1:1 propensity score-matched analysis for survival outcomes. The end of the follow-up period was March 31, 2021. EXPOSURES IMPT vs IMRT with or without chemotherapy. MAIN OUTCOMES AND MEASURES The main outcomes were the incidence of acute and chronic treatment-related adverse events (AEs) and oncologic outcomes, including locoregional failure-free survival (LRFS), progression-free survival (PFS), and overall survival (OS). RESULTS We identified 77 patients (25 [32.5%] women; 52 [67.5%] men; median [interquartile range] age, 48.7 [42.2-60.3] years), among whom 28 (36.4%) were treated with IMPT and 49 (63.6%) were treated with IMRT. Median (interquartile range) follow-up was 30.3 (17.9-41.5) months. On multivariable logistic regression analyses, IMPT was associated with lower likelihood of developing grade 2 or higher acute AEs compared with IMRT (odds ratio [OR], 0.15; 95% CI, 0.03-0.60; P = .01). Only 1 case (3.8%) of a chronic grade 3 or higher AE occurred in the IMPT group compared with 8 cases (16.3%) in the IMRT group (OR, 0.21; 95% CI, 0.01-1.21; P = .15). Propensity score matching generated a balanced cohort of 48 patients (24 IMPT vs 24 IMRT) and found similar PFS in the IMPT and IMRT groups (2-year PFS, 95.7% [95% CI, 87.7%-100%] vs 76.7% [95% CI, 60.7%-97.0%]; hazard ratio [HR], 0.31; 95% CI, 0.07-1.47; P = .14). No locoregional recurrence or death was observed in the IMPT group from the matched cohort. Two-year LRFS was 100% (95% CI, 100%-100%) in the IMPT group and 86.2% (95% CI, 72.8%-100%) in the IMRT group (P = .08). Three-year OS was 100% (95% CI, 100%-100%) in the IMPT group and 94.1% (95% CI, 83.6%-100%) in the IMRT group (P = .42). Smoking history was the only clinical factor significantly associated with both poor LRFS (HR, 63.37; 95% CI, 3.25-1236.13; P = .006) and poor PFS (HR, 6.33; 95% CI, 1.16-34.57; P = .03) on multivariable analyses. CONCLUSIONS AND RELEVANCE In this study, curative-intent radiotherapy with IMPT for nonmetastatic NPC was associated with significantly reduced acute toxicity burden in comparison with IMRT, with rare late complications and excellent oncologic outcomes, including 100% locoregional control at 2 years. Prospective trials are warranted to direct the optimal patient selection for IMPT as the primary radiotherapy modality for nonmetastatic NPC.
Collapse
Affiliation(s)
- Xingzhe Li
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sarin Kitpanit
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Anna Lee
- Department of Radiation Oncology, Division of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas
| | - Dennis Mah
- ProCure Proton Therapy Center, Somerset, NJ
| | - Kevin Sine
- ProCure Proton Therapy Center, Somerset, NJ
| | - Eric J. Sherman
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Lara A. Dunn
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Loren S. Michel
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - James Fetten
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kaveh Zakeri
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yao Yu
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Linda Chen
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jung Julie Kang
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Daphna Y. Gelblum
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sean M. McBride
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chiaojung J. Tsai
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nadeem Riaz
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy Y. Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| |
Collapse
|
18
|
Ben-Ami T, Kontny U, Surun A, Brecht IB, Almaraz RL, Dragomir M, Pourtsidis A, Casanova M, Fresneau B, Bisogno G, Schneider DT, Reguerre Y, Bien E, Stachowicz-Stencel T, Österlundh G, Wygoda M, Janssens GO, Zsiros J, Jehanno N, Brisse HJ, Gandola L, Christiansen H, Claude L, Ferrari A, Rodriguez-Galindo C, Orbach D. Nasopharyngeal carcinoma in children and adolescents: The EXPeRT/PARTNER diagnostic and therapeutic recommendations. Pediatr Blood Cancer 2021; 68 Suppl 4:e29018. [PMID: 33844410 DOI: 10.1002/pbc.29018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 01/25/2023]
Abstract
Nasopharyngeal carcinoma (NPC) is a rare pediatric tumor. Collaborative studies performed over the last decades showed improved results compared to historical data, but standardized guidelines for diagnosis and management of pediatric NPC are still unavailable. This study presents a European consensus guideline for the diagnosis and treatment of pediatric NPC developed by the European Cooperative Study Group for Pediatric Rare Tumors (EXPeRT). Main recommendations include induction chemotherapy with cisplatin and 5-flurouracil, concomitant chemoradiotherapy in advanced disease, and to consider maintenance treatment with interferon beta (IFN-β) for selected high-risk patients. Dose adjustments of radiotherapy based on response to induction chemotherapy may decrease the rates of long-term treatment-related complications that affect most of the survivors.
Collapse
Affiliation(s)
- Tal Ben-Ami
- Pediatric Hematology-Oncology Unit, Kaplan Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Rehovot, Israel
| | - Udo Kontny
- Division of Pediatric Hematology Oncology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Aurore Surun
- SIREDO Oncology Center (Care, Innovation and Research for Children and AYA with Cancer), PSL Research University, Institut Curie, Paris, France
| | - Ines B Brecht
- Pediatric Hematology and Oncology, University Children's Hospital, Eberhard-Karls-Universitaet, Tuebingen, Germany
| | - Ricardo López Almaraz
- Pediatric Hematology and Oncology Unit, Hospital Universitario de Cruces, Barakaldo-Bizkaia, Spain
| | - Monica Dragomir
- Department of Pediatric Oncology, Oncology Institute "Prof. Dr. Al. Trestioreanu,", Bucharest, Romania
| | - Apostolos Pourtsidis
- Pediatric and Adolescents Oncology Clinic Children's Hospital MITERA, Athens, Greece
| | - Michela Casanova
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Brice Fresneau
- Gustave Roussy, Department of Pediatric Oncology, Université Paris-Saclay, Villejuif, France.,Paris-Saclay University, Paris-Sud University, Paris, France
| | - Gianni Bisogno
- Hematology Oncology Division, Department of Woman's and Child's Health, University of Padova, Padova, Italy
| | | | - Yves Reguerre
- Department of Pediatric Hematology and Oncology, Félix Guyon University Hospital, St. Denis, Réunion Island, France
| | - Ewa Bien
- Department of Pediatrics, Hematology and Oncology, Medical University of Gdansk, Gdansk, Poland
| | | | - Gustaf Österlundh
- Department of Pediatric Hematology and Oncology, The Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Marc Wygoda
- Department of Oncology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Geert O Janssens
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.,Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - József Zsiros
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Nina Jehanno
- Department of Nuclear Medicine, Institut Curie, Paris, France
| | - Herve J Brisse
- Department of Radiology, Institut Curie, Paris University, Paris, France
| | - Lorenza Gandola
- Pediatric Radiotherapy Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Hans Christiansen
- Department of Radiation Oncology, Hannover Medical School, Hanover, Germany
| | - Line Claude
- Department of Radiation Oncology, Léon Bérard Center, Lyon, France
| | - Andrea Ferrari
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | - Daniel Orbach
- SIREDO Oncology Center (Care, Innovation and Research for Children and AYA with Cancer), PSL Research University, Institut Curie, Paris, France
| |
Collapse
|
19
|
Intensity-modulated proton therapy for oropharyngeal cancer reduces rates of late xerostomia. Radiother Oncol 2021; 160:32-39. [PMID: 33839202 DOI: 10.1016/j.radonc.2021.03.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 03/23/2021] [Accepted: 03/28/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND PURPOSE To determine rates of xerostomia after intensity-modulated radiotherapy (IMRT) or intensity-modulated proton therapy (IMPT) for oropharyngeal cancer (OPC) and identify dosimetric factors associated with xerostomia risk. MATERIALS AND METHODS Patients with OPC who received IMRT (n = 429) or IMPT (n = 103) from January 2011 through June 2015 at a single institution were studied retrospectively. Every 3 months after treatment, each patient completed an eight-item self-reported xerostomia-specific questionnaire (XQ; summary XQ score, 0-100). An XQ score of 50 was selected as the demarcation value for moderate-severe (XQs ≥ 50) and no-mild (XQs < 50) xerostomia. The mean doses and percent volumes of organs at risk receiving various doses (V5-V70) were extracted from the initial treatment plans. The dosimetric variables and xerostomia risk were compared using an independent-sample t-test or chi-square test. RESULTS The median follow-up time was 36.2 months. The proportions of patients with moderate-severe xerostomia were similar in the two treatment groups up to 18 months after treatment. However, moderate-severe xerostomia was less common in the IMPT group than in the IMRT group at 18-24 months (6% vs. 20%; p = 0.025) and 24-36 months (6% vs. 20%; p = 0.01). During the late xerostomia period (24-36 months), high dose/volume exposures (V25-V70) in the oral cavity were associated with high proportions of patients with moderate-severe xerostomia (all p < 0.05), but dosimetric variables regarding the salivary glands were not associated with late xerostomia. CONCLUSION IMPT was associated with less late xerostomia than was IMRT in OPC patients. Oral cavity dosimetric variables were related to the occurrence of late xerostomia.
Collapse
|
20
|
Lee A, Chow JCH, Lee NY. Treatment Deescalation Strategies for Nasopharyngeal Cancer: A Review. JAMA Oncol 2020; 7:2774310. [PMID: 33355642 DOI: 10.1001/jamaoncol.2020.6154] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
IMPORTANCE Since the advent of modern radiotherapy techniques and incorporation of systemic chemotherapy for nasopharyngeal cancer, locoregional control has been excellent. However, the rate of treatment-related complications, many of which are irreversible, remains high. New approaches are being explored to determine whether the toxic effects of treatment can be relieved while maintaining disease control. This review presents the current state of deescalation strategies for nasopharyngeal cancer. OBSERVATIONS A review of the literature shows that deescalation approaches can be generally categorized into deescalating systemic therapy vs deescalating radiotherapy. This review discusses studies that have explored sparing chemotherapy in selected patients with stage II cancer as well as altering the chemotherapy scheduling, dosing, and agent from the current standard of care, cisplatin. Deescalating radiotherapy has involved decreasing the dose and the treatment volume. In many cases, these approaches are being guided by measuring Epstein-Barr virus DNA levels, which is a robust biomarker for screening, treatment monitoring, and surveillance. Ongoing work with various imaging modalities, such as fluorodeoxyglucose positron emission tomography and dynamic contrast-enhanced or diffusion-weighted magnetic resonance imaging sequences, have shown promise as another biomarker to safely guide practitioners toward deescalation. CONCLUSIONS AND RELEVANCE Various strategies to deescalate treatment in nasopharyngeal cancer have been explored, and outcomes have remained excellent in most approaches. Patient selection remains key, and long-term outcomes and late complications are still to be determined. Continued investigation with prospective, multi-institutional studies are needed to better elucidate how treatment for nasopharyngeal carcinoma can best be individualized and deescalated.
Collapse
Affiliation(s)
- Anna Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
- now with Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston
| | - James C H Chow
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong Special Administrative Region, People's Republic of China
| | - Nancy Y Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| |
Collapse
|
21
|
Minatogawa H, Yasuda K, Dekura Y, Takao S, Matsuura T, Yoshimura T, Suzuki R, Yokota I, Fujima N, Onimaru R, Shimizu S, Aoyama H, Shirato H. Potential benefits of adaptive intensity-modulated proton therapy in nasopharyngeal carcinomas. J Appl Clin Med Phys 2020; 22:174-183. [PMID: 33338323 PMCID: PMC7856494 DOI: 10.1002/acm2.13128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/29/2022] Open
Abstract
Purpose To investigate potential advantages of adaptive intensity‐modulated proton beam therapy (A‐IMPT) by comparing it to adaptive intensity‐modulated X‐ray therapy (A‐IMXT) for nasopharyngeal carcinomas (NPC). Methods Ten patients with NPC treated with A‐IMXT (step and shoot approach) and concomitant chemotherapy between 2014 and 2016 were selected. In the actual treatment, 46 Gy in 23 fractions (46Gy/23Fx.) was prescribed using the initial plan and 24Gy/12Fx was prescribed using an adapted plan thereafter. New treatment planning of A‐IMPT was made for the same patients using equivalent dose fractionation schedule and dose constraints. The dose volume statistics based on deformable images and dose accumulation was used in the comparison of A‐IMXT with A‐IMPT. Results The means of the Dmean of the right parotid gland (P < 0.001), right TM joint (P < 0.001), left TM joint (P < 0.001), oral cavity (P < 0.001), supraglottic larynx (P = 0.001), glottic larynx (P < 0.001), , middle PCM (P = 0.0371), interior PCM (P < 0.001), cricopharyngeal muscle (P = 0.03643), and thyroid gland (P = 0.00216), in A‐IMPT are lower than those of A‐IMXT, with statistical significance. The means of, D0.03cc, and Dmean of each sub portion of auditory apparatus and D30% for Eustachian tube and D0.5cc for mastoid volume in A‐IMPT are significantly lower than those of A‐IMXT. The mean doses to the oral cavity, supraglottic larynx, and glottic larynx were all reduced by more than 20 Gy (RBE = 1.1). Conclusions An adaptive approach is suggested to enhance the potential benefit of IMPT compared to IMXT to reduce adverse effects for patients with NPC.
Collapse
Affiliation(s)
- Hideki Minatogawa
- Department of Radiation Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Koichi Yasuda
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan.,Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| | - Yasuhiro Dekura
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - Seishin Takao
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Taeko Matsuura
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Takaaki Yoshimura
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan.,Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Ryusuke Suzuki
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Isao Yokota
- Department of Biostatistics, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Noriyuki Fujima
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Rikiya Onimaru
- Department of Radiation Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shinichi Shimizu
- Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.,Department of Radiation Medical Science and Engineering, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hidefumi Aoyama
- Department of Radiation Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroki Shirato
- Department of Radiation Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| |
Collapse
|
22
|
Biological Effects of Scattered Versus Scanned Proton Beams on Normal Tissues in Total Body Irradiated Mice: Survival, Genotoxicity, Oxidative Stress and Inflammation. Antioxidants (Basel) 2020; 9:antiox9121170. [PMID: 33255388 PMCID: PMC7761103 DOI: 10.3390/antiox9121170] [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: 10/30/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023] Open
Abstract
Side effects of proton therapy are poorly studied. Moreover, the differences in the method of dose delivery on normal tissues are not taken into account when proton beams are scanned instead of being scattered. We proposed here to study the effects of both modalities of proton beam delivery on blood; skin; lung and heart in a murine model. In that purpose; C57BL/6 mice were total body irradiated by 190.6 MeV proton beams either by Double Scattering (DS) or by Pencil Beam Scanning (PBS) in the plateau phase before the Bragg Peak. Mouse survival was evaluated. Blood and organs were removed three months after irradiation. Biomarkers of genotoxicity; oxidative stress and inflammation were measured. Proton irradiation was shown to increase lymphocyte micronucleus frequency; lung superoxide dismutase activity; erythrocyte and skin glutathione peroxidase activity; erythrocyte catalase activity; lung; heart and skin oxidized glutathione level; erythrocyte and lung lipid peroxidation and erythrocyte protein carbonylation even 3 months post-irradiation. When comparing both methods of proton beam delivery; mouse survival was not different. However, PBS significantly increased lymphocyte micronucleus frequency; erythrocyte glutathione peroxidase activity and heart oxidized glutathione level compared to DS. These results point out the necessity to take into account the way of delivering dose in PT as it could influence late side effects.
Collapse
|
23
|
McDowell L, Corry J, Ringash J, Rischin D. Quality of Life, Toxicity and Unmet Needs in Nasopharyngeal Cancer Survivors. Front Oncol 2020; 10:930. [PMID: 32596155 PMCID: PMC7303258 DOI: 10.3389/fonc.2020.00930] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 05/12/2020] [Indexed: 12/19/2022] Open
Abstract
Concerted research efforts over the last three decades have resulted in improved survival and outcomes for patients diagnosed with nasopharyngeal carcinoma (NPC). The evolution of radiotherapy techniques has facilitated improved dose delivery to target volumes while reducing dose to the surrounding normal tissue, improving both disease control and quality of life (QoL). In parallel, clinical trials focusing on determining the optimal systemic therapy to use in conjunction with radiotherapy have been largely successful, resulting in improved locoregional, and distant control. As a consequence, neoadjuvant chemotherapy (NACT) prior to definitive chemoradiotherapy has recently emerged as the preferred standard for patients with locally advanced NPC. Two of the major challenges in interpreting toxicity and QoL data from the published literature have been the reliance on: (1) clinician rather than patient reported outcomes; and (2) reporting statistical rather than clinical meaningful differences in measures. Despite the lower rates of toxicity that have been achieved with highly conformal radiotherapy techniques, survivors remain at moderate risk of persistent and long-lasting treatment effects, and the development of late radiation toxicities such as hearing loss, cranial neuropathies and cognitive impairment many years after successful treatment can herald a significant decline in QoL. Future approaches to reduce long-term toxicity will rely on: (1) identifying individual patients most likely to benefit from NACT; (2) development of response-adapted radiation strategies following NACT; and (3) anticipated further dose reductions to organs at risk with proton and particle therapy. With increasing numbers of survivors, many in the prime of their adult life, research to identify, and strategies to address the unmet needs of NPC survivors are required. This contemporary review will summarize our current knowledge of long-term toxicity, QoL and unmet needs of this survivorship group.
Collapse
Affiliation(s)
- Lachlan McDowell
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, Australia
| | - June Corry
- GenesisCare Radiation Oncology, Division Radiation Oncology, St. Vincent's Hospital, Melbourne, VIC, Australia.,Department of Medicine St Vincent's, The University of Melbourne, Melbourne, VIC, Australia
| | - Jolie Ringash
- Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, ON, Canada
| | - Danny Rischin
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, Australia.,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| |
Collapse
|
24
|
Alterio D, D’Ippolito E, Vischioni B, Fossati P, Gandini S, Bonora M, Ronchi S, Vitolo V, Mastella E, Magro G, Franco P, Ricardi U, Krengli M, Ivaldi G, Ferrari A, Fanetti G, Comi S, Tagliabue M, Verri E, Ricotti R, Ciardo D, Jereczek-Fossa BA, Valvo F, Orecchia R. Mixed-beam approach in locally advanced nasopharyngeal carcinoma: IMRT followed by proton therapy boost versus IMRT-only. Evaluation of toxicity and efficacy. Acta Oncol 2020; 59:541-548. [PMID: 32090645 DOI: 10.1080/0284186x.2020.1730001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objective: To compare radiation-induced toxicity and dosimetry parameters in patients with locally advanced nasopharyngeal cancer (LANPC) treated with a mixed-beam (MB) approach (IMRT followed by proton therapy boost) with an historic cohort of patients treated with a full course of IMRT-only.Material and methods: Twenty-seven patients with LANPC treated with the MB approach were compared to a similar cohort of 17 patients treated with IMRT-only. The MB approach consisted in a first phase of IMRT up to 54-60 Gy followed by a second phase delivered with a proton therapy boost up to 70-74 Gy (RBE). The total dose for patients treated with IMRT-only was 69.96 Gy. Induction chemotherapy was administrated to 59 and 88% and concurrent chemoradiotherapy to 88 and 100% of the MB and IMRT-only patients, respectively. The worst toxicity occurring during the entire course of treatment (acute toxicity) and early-late toxicity were registered according to the Common Terminology Criteria Adverse Events V4.03.Results: The two cohorts were comparable. Patients treated with MB received a significantly higher median total dose to target volumes (p = .02). Acute grade 3 mucositis was found in 11 and 76% (p = .0002) of patients treated with MB and IMRT-only approach, respectively, while grade 2 xerostomia was found in 7 and 35% (p = .02) of patients treated with MB and IMRT-only, respectively. There was no statistical difference in late toxicity. Local progression-free survival (PFS) and progression-free survival curves were similar between the two cohorts of patients (p = .17 and p = .40, respectively). Local control rate was 96% and 81% for patients treated with MB approach and IMRT-only, respectively.Conclusions: Sequential MB approach for LANPC patients provides a significantly lower acute toxicity profile compared to full course of IMRT. There were no differences in early-late morbidities and disease-related outcomes (censored at two-years) but a longer follow-up is required to achieve conclusive results.
Collapse
Affiliation(s)
- Daniela Alterio
- Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Emma D’Ippolito
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Barbara Vischioni
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Piero Fossati
- Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Sara Gandini
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Maria Bonora
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Sara Ronchi
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Viviana Vitolo
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Edoardo Mastella
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Giuseppe Magro
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | | | - Umberto Ricardi
- Department of Oncology, Radiation Oncology, University of Torino, Turin, Italy
| | - Marco Krengli
- Department of Translational Medicine, Novara, University of Piemonte Orientale, Vercelli, Italy
| | - Giovanni Ivaldi
- Unit of Radiation Oncology, ICS Maugeri, IRCSS, Pavia, Italy
| | - Annamaria Ferrari
- Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Giuseppi Fanetti
- Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| | - Stefania Comi
- Unit of Medical Physics, European Institute of Oncology, Milan, Italy
| | - Marta Tagliabue
- Department of Head and Neck Surgery and Otorhinolaryngology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Elena Verri
- Department of Medical Oncology, European Institute of Oncology, Milan, Italy
| | - Rosalinda Ricotti
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Delia Ciardo
- Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Barbara Alicja Jereczek-Fossa
- Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| | - Francesca Valvo
- Radiation Oncology Clinical Department, National Center of Oncological Hadrontherapy, Pavia, Italy
| | - Roberto Orecchia
- Scientific Direction, European Institute of Oncology IRCCS, Milan, Italy
- Scientific Direction, National Center of Oncological Hadrontherapy, Pavia, Italy
| |
Collapse
|
25
|
Current management of stage IV nasopharyngeal carcinoma without distant metastasis. Cancer Treat Rev 2020; 85:101995. [PMID: 32113080 DOI: 10.1016/j.ctrv.2020.101995] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 12/21/2022]
Abstract
Up to one in four patients with nasopharyngeal carcinoma present with non-metastatic stage IV disease (i.e. T4 or N3). Distinct failure patterns exist, despite the routine adoption of contemporary treatment modalities such as intensity modulated radiotherapy and systemic chemotherapy. Concurrent chemoradiotherapy (CCRT) followed by adjuvant chemotherapy or induction chemotherapy followed by CCRT are commonly employed in this setting, with the latter emerging as the preferred option. Additionally, emerging radiation technologies like proton therapy has become available offering new opportunities for prevention of radiation-induced side effects. This article reviews not only the current treatment strategies, but also discusses novel ways to tackle this challenging disease with respect to the patterns of failure.
Collapse
|
26
|
Yang Z, Zhang X, Wang X, Zhu XR, Gunn B, Frank SJ, Chang Y, Li Q, Yang K, Wu G, Liao L, Li Y, Chen M, Li H. Multiple-CT optimization: An adaptive optimization method to account for anatomical changes in intensity-modulated proton therapy for head and neck cancers. Radiother Oncol 2020; 142:124-132. [PMID: 31564553 PMCID: PMC8564505 DOI: 10.1016/j.radonc.2019.09.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 09/09/2019] [Accepted: 09/11/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE We aimed to determine whether multiple-CT (MCT) optimization of intensity-modulated proton therapy (IMPT) could improve plan robustness to anatomical changes and therefore reduce the additional need for adaptive planning. METHODS AND MATERIALS Ten patients with head and neck cancer who underwent IMPT were included in this retrospective study. Each patient had primary planning CT (PCT), a first adaptive planning CT (ACT1), and a second adaptive planning CT (ACT2). Selective robust IMPT plans were generated using each CT data set (PCT, ACT1, and ACT2). Moreover, a MCT optimized plan was generated using the PCT and ACT1 data sets together. Dose distributions optimized using each of the four plans (PCT, ACT1, ACT2, and MCT plans) were re-calculated on ACT2 data. The doses to the target and to organs at risk were compared between optimization strategies. RESULTS MCT plans for all patients met all target dose and organs-at-risk criteria for all three CT data sets. Target dose and organs-at-risk dose for PCT and ACT1 plans re-calculated on ACT2 data set were compromised, indicating the need for adaptive planning on ACT2 if PCT or ACT1 plans were used. The D98% of CTV1 and CTV3 of MCT plan re-calculated on ACT2 were both above the coverage criteria. The CTV2 coverage of the MCT plan re-calculated on ACT2 was worse than ACT2 plan. The MCT plan re-calculated on ACT2 data set had lower chiasm, esophagus, and larynx doses than did PCT, ACT1, or ACT2 plans re-calculated on ACT2 data set. CONCLUSIONS MCT optimization can improve plan robustness toward anatomical change and may reduce the number of plan adaptation for head and neck cancers.
Collapse
Affiliation(s)
- Zhiyong Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Xiaodong Zhang
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Xianliang Wang
- Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, China
| | - X Ronald Zhu
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Brandon Gunn
- Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Steven J Frank
- Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Yu Chang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qin Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kunyu Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Liao
- Global Oncology One, Houston, USA
| | - Yupeng Li
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Mei Chen
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Heng Li
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Medicine, Baltimore, USA.
| |
Collapse
|
27
|
Mohamed Ali A, Mathis T, Bensadoun RJ, Thariat J. Radiation induced optic neuropathy: Does treatment modality influence the risk? Bull Cancer 2019; 106:1160-1176. [PMID: 31757405 DOI: 10.1016/j.bulcan.2019.09.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 06/29/2019] [Accepted: 09/20/2019] [Indexed: 11/16/2022]
Abstract
Radiation induced optic neuropathy (RION) is a rare but disastrous complication of radiation therapy in treatment of periorbital tumors. The objective of this study is to investigate the incidence of RION in series of patients treated from peri orbital tumors by recent photon and proton irradiation modalities. We searched the Pub Med database for studies in periorbital tumors including base of skull, sinonasal, pituitary, nasopharyngeal tumors and craniopharyngioma treated with Intensity modulated radiotherapy (IMRT) and with proton beam therapy (PBT) between 1992 and 2017 excluding metastatic tumors, lymphomas, pediatric series, those treated mainly with chemotherapy, target therapy and those written in languages other than English and French. The result retrieved 421 articles that were revised by the panel. Fourteen articles with IMRT and 27 with PBT reported usable data for the review from which 31studies that had pointed to the doses to the optic nerve (ON) and/or optic chiasm (OC) and incidence of RION have been analyzed. We have found that the incidence of RION had been reported fairly in both modalities and many other factors related to the patient, tumor, and irradiation process interplay in its development. We have concluded that proper treatment planning, good selection of treatment modality, adherence to dose constraints applied to critical structures all along with regular oncological and ophthalmological follow up, control of co-morbidities and early intervention, could help reducing its magnitude.
Collapse
Affiliation(s)
- Ali Mohamed Ali
- Sohag University, Sohag University Hospital, Department of Clinical Oncology, Sohag East, 82524 Sohag, Egypt
| | - Thibaud Mathis
- Croix-Rousse University Hospital, Department of Ophthalmology, 103, grande rue de la Croix-Rousse, Lyon, France; UMR-CNRS 5510, Mateis, Villeurbanne, Lyon, France
| | | | - Juliette Thariat
- Centre François-Baclesse/ARCHADE, Department of Radiation Oncology, 3, avenue General Harris, 14000 Caen, France; Unicaen - Normandie Université, laboratoire de physique corpusculaire IN2P3/ENSICAEN - UMR6534, boulevard du Marechal Juin, 14050 Caen, France
| |
Collapse
|
28
|
Blakely EA, Faddegon B, Tinkle C, Bloch C, Dominello M, Griffin RJ, Joiner MC, Burmeister J. Three discipline collaborative radiation therapy (3DCRT) special debate: The United States needs at least one carbon ion facility. J Appl Clin Med Phys 2019; 20:6-13. [PMID: 31573146 PMCID: PMC6839391 DOI: 10.1002/acm2.12727] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 08/29/2019] [Accepted: 09/04/2019] [Indexed: 01/07/2023] Open
Affiliation(s)
| | - Bruce Faddegon
- Department of Radiation OncologyUniversity of California – San FranciscoSan FranciscoCAUSA
| | - Christopher Tinkle
- Department of Radiation OncologySt. Jude Children’s Research HospitalMemphisTNUSA
| | - Charles Bloch
- Department of Radiation OncologyUniversity of WashingtonSeattleWAUSA
| | - Michael Dominello
- Department of OncologyWayne State University School of MedicineDetroitMIUSA
| | - Robert J Griffin
- Department of OncologyUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Michael C Joiner
- Department of OncologyWayne State University School of MedicineDetroitMIUSA
| | - Jay Burmeister
- Department of OncologyWayne State University School of MedicineDetroitMIUSA,Gershenson Radiation Oncology CenterBarbara Ann Karmanos Cancer InstituteDetroitMIUSA
| |
Collapse
|
29
|
Claude L, Jouglar E, Duverge L, Orbach D. Update in pediatric nasopharyngeal undifferentiated carcinoma. Br J Radiol 2019; 92:20190107. [PMID: 31322911 DOI: 10.1259/bjr.20190107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Many of the principles established in adults with undifferentiated nasopharyngeal carcinoma (NPC) apply to children, adolescents and young adults. However, NPC in young patients should be distinguished from the adult form by several points. This review focuses mainly on differences between adult and pediatric NPC. The role of biology and genetics in pediatric NPC is discussed. Systemic treatment modalities including type of chemotherapy induction, timing of treatment, role of immunotherapy as adjuvant treatment, or in relapsing/ metastatic diseases are reported. Radiation modalities (doses, techniques…) in children are also reviewed. Long-term effects including secondary cancers are finally be discussed in this young NPC population.
Collapse
Affiliation(s)
- Line Claude
- Department of radiotherapy, Centre Léon Bérard, Lyon, France
| | - Emmanuel Jouglar
- Department of radiotherapy, Institut de Cancérologie de l'Ouest - Centre René Gauducheau, Saint-Herblain, France
| | - Loig Duverge
- Department of radiotherapy, Centre Léon Bérard, Lyon, France.,Department of radiotherapy, Centre Eugène Marquis, Rennes, France
| | - Daniel Orbach
- SIREDO oncology center (Care, Innovation and Research for Children, Adolescents and Young Adults with cancer), Institut Curie, PSL university, Paris, France
| |
Collapse
|
30
|
Beddok A, Vela A, Calugaru V, Tessonnier T, Kubes J, Dutheil P, Gérard A, Vidal M, Goudjil F, Florescu C, Kammerer E, Bénézery K, Hérault J, Bourhis J, Thariat J. [Proton therapy for head and neck squamous cell carcinomas: From physics to clinic]. Cancer Radiother 2019; 23:439-448. [PMID: 31358445 DOI: 10.1016/j.canrad.2019.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/09/2019] [Accepted: 05/16/2019] [Indexed: 11/17/2022]
Abstract
Intensity-modulated radiation therapy (IMRT) is presently the recommended technique for the treatment of locally advanced head and neck carcinomas. Proton therapy would allow to reduce the volume of irradiated normal tissue and, thus, to decrease the risk of late dysphagia, xerostomia, dysgeusia and hypothyroidism. An exhaustive research was performed with the search engine PubMed by focusing on the papers about the physical difficulties that slow down use of proton therapy for head and neck carcinomas. Range uncertainties in proton therapy (±3 %) paradoxically limit the use of the steep dose gradient in distality. Calibration uncertainties can be important in the treatment of head and neck cancer in the presence of materials of uncertain stoichiometric composition (such as with metal implants, dental filling, etc.) and complex heterogeneities. Dental management for example may be different with IMRT or proton therapy. Some uncertainties can be somewhat minimized at the time of optimization. Inter- and intrafractional variations and uncertainties in Hounsfield units/stopping power can be integrated in a robust optimization process. Additional changes in patient's anatomy (tumour shrinkage, changes in skin folds in the beam patch, large weight loss or gain) require rescanning. Dosimetric and small clinical studies comparing photon and proton therapy have well shown the interest of proton therapy for head and neck cancers. Intensity-modulated proton therapy is a promising treatment as it can reduce the substantial toxicity burden of patients with head and neck squamous cell carcinoma compared to IMRT. Robust optimization will allow to perform an optimal treatment and to use proton therapy in current clinical practice.
Collapse
Affiliation(s)
- A Beddok
- Département d'oncologie-radiothérapie, institut Curie, 25, rue d'Ulm, 75005 Paris, France
| | - A Vela
- Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Advanced Resource Centre for Hadrontherapy in Europe (Archade), 3, avenue du Général-Harris, 14000 Caen, France
| | - V Calugaru
- Département d'oncologie-radiothérapie, institut Curie, 25, rue d'Ulm, 75005 Paris, France
| | - T Tessonnier
- Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Advanced Resource Centre for Hadrontherapy in Europe (Archade), 3, avenue du Général-Harris, 14000 Caen, France
| | - J Kubes
- Proton Therapy Centre Czech, Prague, République tchèque
| | - P Dutheil
- Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Advanced Resource Centre for Hadrontherapy in Europe (Archade), 3, avenue du Général-Harris, 14000 Caen, France
| | - A Gérard
- Centre Antoine-Lacassagne, département d'oncologie-radiothérapie, 33, avenue Valombrose, 06000 Nice, France
| | - M Vidal
- Centre Antoine-Lacassagne, département d'oncologie-radiothérapie, 33, avenue Valombrose, 06000 Nice, France
| | - F Goudjil
- Département d'oncologie-radiothérapie, institut Curie, 25, rue d'Ulm, 75005 Paris, France
| | - C Florescu
- Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Advanced Resource Centre for Hadrontherapy in Europe (Archade), 3, avenue du Général-Harris, 14000 Caen, France
| | - E Kammerer
- Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Advanced Resource Centre for Hadrontherapy in Europe (Archade), 3, avenue du Général-Harris, 14000 Caen, France
| | - K Bénézery
- Centre Antoine-Lacassagne, département d'oncologie-radiothérapie, 33, avenue Valombrose, 06000 Nice, France
| | - J Hérault
- Centre Antoine-Lacassagne, département d'oncologie-radiothérapie, 33, avenue Valombrose, 06000 Nice, France
| | - J Bourhis
- Département d'oncologie-radiothérapie, centre hospitalier universitaire vaudois, Lausanne, Suisse
| | - J Thariat
- Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Advanced Resource Centre for Hadrontherapy in Europe (Archade), 3, avenue du Général-Harris, 14000 Caen, France; Laboratoire de physique corpusculaire IN2P3/Ensicaen - UMR6534, Unicaen - Normandie Université, 14000 Caen, France.
| | -
- Département d'oncologie-radiothérapie, institut Curie, 25, rue d'Ulm, 75005 Paris, France; Département d'oncologie-radiothérapie, centre François-Baclesse, Caen, 3, avenue du Général-Harris, 14000 Caen, France; Unicaen - Normandie Université, 14000 Caen, France; Proton Therapy Centre Czech, Prague, République tchèque; Centre Antoine-Lacassagne, département d'oncologie-radiothérapie, 33, avenue Valombrose, 06000 Nice, France; Département d'oncologie-radiothérapie, centre hospitalier universitaire vaudois, Lausanne, Suisse; Laboratoire de physique corpusculaire IN2P3/Ensicaen - UMR6534, Unicaen - Normandie Université, 14000 Caen, France
| |
Collapse
|
31
|
Alterio D, Marvaso G, Ferrari A, Volpe S, Orecchia R, Jereczek-Fossa BA. Modern radiotherapy for head and neck cancer. Semin Oncol 2019; 46:233-245. [PMID: 31378376 DOI: 10.1053/j.seminoncol.2019.07.002] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 07/15/2019] [Indexed: 02/07/2023]
Abstract
Radiation therapy (RT) plays a key role in curative-intent treatments for head and neck cancers. Its use is indicated as a sole therapy in early stage tumors or in combination with surgery or concurrent chemotherapy in advanced stages. Recent technologic advances have resulted in both improved oncologic results and expansion of the indications for RT in clinical practice. Despite this, RT administered to the head and neck region is still burdened by a high rate of acute and late side effects. Moreover, about 50% of patients with high-risk disease experience loco-regional recurrence within 3 years of follow-up. Therefore, in recent decades, efforts have been dedicated to optimize the cost/benefit ratio of RT in this subset of patients. The aim of the present review was to highlight modern concepts of RT for head and neck cancers considering both the technological advances that have been achieved and recent knowledge that has informed the biological interaction between radiation and both tumor and healthy tissues.
Collapse
Affiliation(s)
- Daniela Alterio
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, Milan, Italy
| | - Giulia Marvaso
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, Milan, Italy.
| | - Annamaria Ferrari
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, Milan, Italy
| | - Stefania Volpe
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| | | | - Barbara Alicja Jereczek-Fossa
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, Milan, Italy; Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
| |
Collapse
|
32
|
Sun XS, Li XY, Chen QY, Tang LQ, Mai HQ. Future of Radiotherapy in Nasopharyngeal Carcinoma. Br J Radiol 2019; 92:20190209. [PMID: 31265322 DOI: 10.1259/bjr.20190209] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a malignancy with unique clinical biological profiles such as associated Epstein-Barr virus infection and high radiosensitivity. Radiotherapy has long been recognized as the mainstay for the treatment of NPC. However, the further efficacy brought by radical radiotherapy has reached the bottleneck in advanced patients, who are prone to develop recurrence and distant metastasis after treatment. The application of photon therapy makes it possible for radiation dose escalation in refractory cases and may provide second chance for recurrent patients with less unrecoverable tissue damage. The concept of adaptive radiotherapy is put forward in consideration of target volume shrinkage during treatment. The replanning procedure offers better protection for the organ at risk. However, the best timing and candidates for adaptive radiotherapy is still under debate. The current tendency of artificial intelligence in NPC mainly focuses on image recognition, auto-segmentation and dose prediction. Although artificial intelligence is still in developmental stage, the future of it is promising.To further improve the efficacy of NPC, multimodality treatment is encouraged. In-depth studies on genetic and epigenetic variations help to explain the great heterogeneity among patients, and could further be applied to precise screening and prediction, personalized radiotherapy and the evolution of targeted drugs. Given the clinical benefit of immunotherapy in other cancers, the application of immunotherapy, especially immune checkpoint inhibitor, in NPC is also of great potential. Results from ongoing clinical trials combining immunotherapy with radiotherapy in NPC are expected.
Collapse
Affiliation(s)
- Xue-Song Sun
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, P R China.,Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou, P R China
| | - Xiao-Yun Li
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, P R China.,Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou, P R China
| | - Qiu-Yan Chen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, P R China.,Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou, P R China
| | - Lin-Quan Tang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, P R China.,Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou, P R China
| | - Hai-Qiang Mai
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, P R China.,Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou, P R China
| |
Collapse
|
33
|
Beddok A, Feuvret L, Noël G, Bolle S, Deberne M, Mammar H, Chaze A, Le Tourneau C, Goudjil F, Zefkili S, Herman P, Dendale R, Calugaru V. Complément de dose de protons pour les cancers du nasopharynx localement évolués : une expérience de l’institut Curie. Cancer Radiother 2019; 23:304-311. [DOI: 10.1016/j.canrad.2019.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 12/21/2018] [Accepted: 01/16/2019] [Indexed: 12/26/2022]
|
34
|
Jouin A, Helfre S, Bolle S, Claude L, Laprie A, Bogart E, Vigneron C, Potet H, Ducassou A, Claren A, Riet FG, Castex MP, Faure-Conter C, Fresneau B, Defachelles AS, Orbach D. Adapted strategy to tumor response in childhood nasopharyngeal carcinoma: the French experience. Strahlenther Onkol 2019; 195:504-516. [PMID: 30963203 DOI: 10.1007/s00066-019-01461-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/25/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE The aim of this study was to retrospectively study survival and long-term morbidities of children with nasopharyngeal carcinoma (NPC) treated by induction chemotherapy and concurrent chemoradiation (CRT). The total dose of radiation was adapted to the response following neoadjuvant chemotherapy. METHODS Children with non-metastatic NPC treated in France between 1999 and 2015 were retrospectively included in the study. The strategy combined neoadjuvant platinum-based chemotherapy, followed by adapted CRT to tumor response. RESULTS In total, 95 patients (median age 15 years [range, 7-23 years], male-to-female ratio 1.8) with undifferentiated NPC were included; 59% of patients had TNM stage IV. Intensity-modulated radiotherapy (IMRT) was delivered to 57 patients (60%), while the other patients were treated with conformal RT (3D-RT). After a median follow-up of 4.5 years [range, 3.6-5.5 years], 13 relapses and seven deaths had occurred. The 3‑year overall and relapse-free survival (RFS) were 94% [95% CI, 85-97%] and 86% [77-92%], respectively. The locoregional failure rate was 6% [95% CI, 2-14]. Long-term treatment-related sequelae of grade 2+ were reported by 37 (50%) patients; odynophagia was significantly reduced treated by IMRT vs. conventional 3D-RT (7% vs. 55%, p = 0.015). Using a reduction dose of 59.4 Gy, 54 Gy, and 45 Gy, respectively, to the primary, involved, and uninvolved neck nodes, after a favorable tumor response, was not associated with an increased locoregional failure rate. CONCLUSIONS The survival rates for NPC have been considerably improved by means of multimodal therapy, but long-term locoregional morbidity remains common. Use of IMRT may induce less residual odynophagia. Radiation dose reduction adapted to chemotherapy response does not have a negative impact on outcome. These findings support the use of an RT protocol adapted to the tumor response to neoadjuvant chemotherapy for a long-lasting improvement in the patient's quality of life.
Collapse
Affiliation(s)
- Anaïs Jouin
- Radiotherapy department, Centre Oscar Lambret, Lille, France
| | - Sylvie Helfre
- Radiotherapy department, Institut Curie, Paris, France
| | - Stéphanie Bolle
- Gustave Roussy, Department of Radiotherapy Oncology, Université Paris-Saclay, 94805, Villejuif, France
| | - Line Claude
- Radiotherapy department, Centre Lyon Bérard, Lyon, France
| | - Anne Laprie
- Radiotherapy department, IUCT Oncopole, Toulouse, France
| | - Emilie Bogart
- Biostatistics department, Centre Oscar Lambret, Lille, France
| | - Céline Vigneron
- Radiotherapy department, Centre Paul Strauss, Strasbourg, France
| | - Hélène Potet
- Radiotherapy department, Centre Antoine Lacassagne, Nice, France
| | - Anne Ducassou
- Radiotherapy department, IUCT Oncopole, Toulouse, France
| | - Audrey Claren
- Radiotherapy department, Centre Antoine Lacassagne, Nice, France
| | - François Georges Riet
- Gustave Roussy, Department of Radiotherapy Oncology, Université Paris-Saclay, 94805, Villejuif, France
| | | | | | - Brice Fresneau
- Gustave Roussy-Grand Campus, Pediatric department, University Paris-Saclay, Villejuif, France
- CESP, INSERM, Paris-Saclay University, Paris-Sud University, Villejuif, France
| | | | - Daniel Orbach
- SIREDO Oncology Center (Care, Innovation and Research for Children, Adolescents and Young Adults with cancer), PSL Research University, French Pediatric Rare Tumor group (Fracture group), Institut Curie, 26, rue d'Ulm, 75005, Paris, France.
| |
Collapse
|
35
|
Akbaba S, Held T, Lang K, Forster T, Federspil P, Herfarth K, Häfner M, Plinkert P, Rieken S, Debus J, Adeberg S. Bimodal Radiotherapy with Active Raster-Scanning Carbon Ion Radiotherapy and Intensity-Modulated Radiotherapy in High-Risk Nasopharyngeal Carcinoma Results in Excellent Local Control. Cancers (Basel) 2019; 11:cancers11030379. [PMID: 30884910 PMCID: PMC6468442 DOI: 10.3390/cancers11030379] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/06/2019] [Accepted: 03/13/2019] [Indexed: 11/16/2022] Open
Abstract
Background: In this analysis, we aimed to present the first results of carbon ion radiotherapy (CIRT), which is known for its conformal dose distribution and increased biological effectiveness in the treatment of high-risk nasopharyngeal carcinoma (NPC). Methods: We retrospectively analyzed twenty-six consecutive patients who had been treated at our center with CIRT for high-risk NPC between 2009 and 2018. Carbon ion (C12) boost was applied in a bimodal setting combined with intensity-modulated radiotherapy (IMRT) base plan. The median cumulative total dose was 74 Gy (RBE), and patients with inoperable (n = 17, 65%) or incompletely resected (n = 7, 27%) tumors were included in the analysis. Overall, 81% received concomitant chemotherapy (n = 21). Results: The median follow-up time was 40 months (range 10–97 months) for all patients. At the last follow-up, 92% of the patients were still alive. We could identify excellent tumor response with complete tumor remission (CR) in 60% (n = 15/25), partial tumor remission (PR) in 20% (n = 5/25), and stable disease (SD) in 12% (n = 3/25) of the patients according to the RECIST (Response Evaluation Criteria in Solid Tumors) criteria. Despite unfavorable tumor characteristics, only one patient showed a locally in-field recurrence after 56 months (4%) and another patient a locoregional recurrence in the unilateral cervical lymph nodes after 21 months (4%). The 2-year local control (LC), distant progression-free survival (DPFS), and overall survival (OS) were 95%, 93%, and 100% and the estimated 5-year LC, DPFS, and OS were 90%, 86%, and 86%, respectively. Overall, treatment was tolerated well with 20% acute and 16% chronic grade 3 side effects. No toxicity greater than grade 3 occurred. Conclusion: Bimodal radiotherapy including IMRT and active raster-scanning CIRT for high-risk nasopharyngeal cancer is a safe treatment method resulting in moderate toxicity and excellent local control. A larger patient number and longer follow-up time would be necessary to strengthen the current findings.
Collapse
Affiliation(s)
- Sati Akbaba
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Thomas Held
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Kristin Lang
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Tobias Forster
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Philippe Federspil
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
| | - Matthias Häfner
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Peter Plinkert
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| | - Stefan Rieken
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
| | - Sebastian Adeberg
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany.
- National Center for Tumor diseases (NCT), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
| |
Collapse
|
36
|
Results of a combination treatment with intensity modulated radiotherapy and active raster-scanning carbon ion boost for adenoid cystic carcinoma of the minor salivary glands of the nasopharynx. Oral Oncol 2019; 91:39-46. [PMID: 30926061 DOI: 10.1016/j.oraloncology.2019.02.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 02/21/2019] [Indexed: 01/24/2023]
Abstract
OBJECTIVES We aimed to present the first clinical results for adenoid cystic carcinoma (ACC) of the nasopharynx after primary radiotherapy (RT) with the focus on local control (LC) and patterns of recurrence. MATERIALS AND METHODS We retrospectively analyzed 59 patients with ACC of the nasopharynx, who were treated with bimodal radiotherapy (RT) consisting of intensity modulated radiotherapy and carbon ion boost at the Heidelberg Ion-Beam Therapy Center between 2009 and 2018. The patients had predominantly inoperable (n = 42, 72%) or incompletely resected (n = 17, 29%) tumors. Kaplan-Meier estimates and the log-rank (Mantel-Cox) test were used for univariate and multivariate analyses. RESULTS The median follow-up was 32 months. At last follow-up, 67% of the patients were still alive (n = 39/58), of whom 74% were free of progression (n = 29/39). The 2-year LC, distant progression-free survival (DPFS) and overall survival (OS) were 83%, 81%, 87% and the estimated 5-year LC, DPFS and OS were 49%, 54%, 69%, respectively. LC was significantly inferior in patients with large tumor volumes (gross tumor volume, GTV > 100 cc, p = 0.020) and T4 tumors (p = 0.021). The majority of the recurrences occurred at the margin, where critical structures were spared (n = 11/19, 58%). Overall, grade 3 toxicity was moderate with 12% acute and 8% late side effects. CONCLUSION Bimodal RT including active raster-scanning carbon ion boost for nasopharyngeal ACC resulted in adequate LC and OS rates with moderate toxicity. T4 stage, large tumor volume and the necessary dose sparing in critical structures, i.e. optic nerves, brain stem and orbit, negatively affected LC.
Collapse
|
37
|
Narita Y, Kato T, Ono T, Oyama S, Komori S, Arai K, Abe Y, Harada T, Nakamura T, Wada H, Kikuchi Y, Murakami M, Hosokawa Y. Effect of anatomical change on dose distribution during radiotherapy for maxillary sinus carcinoma: passive scattering proton therapy versus volumetric-modulated arc therapy. Br J Radiol 2019; 92:20180273. [PMID: 30281327 PMCID: PMC6435060 DOI: 10.1259/bjr.20180273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 09/14/2018] [Accepted: 10/01/2018] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Maxillary sinus carcinomas are anatomically situated next to many organs at risk (OARs), and anatomical change is often observed during radiotherapy. We analyzed the effect of anatomical change on dose distribution of passive scattering proton therapy (PSPT) and volumetric-modulated arc therapy (VMAT) for 20 patients. METHODS The first plans were generated based on the first CT images. The second CT images were acquired after 3 weeks, and the second plans were generated by copying the first plans to the second CT images. The effect of anatomical change was estimated by comparing both plans. RESULTS Target volume change was observed in all cases, however, the influence on dose coverage of clinical target volume tended to be small. Alternatively, the doses to almost all OARs were increased. In particular, the increase in the dose to brainstem (p < 0.001) and optic chiasm (p < 0.001) was significantly higher in the second PSPT plan than in the first PSPT plan. Although PSPT is sensitive to anatomical change, the dose to OARs remained significantly lower in PSPT plans than that in VMAT plans. CONCLUSION PSPT was confirmed to be more effective than VMAT even the effect of anatomical change was taken into account. Therefore, it is expected that the contralateral vision can be preserved reliably while optimal target coverage is provided. ADVANCES IN KNOWLEDGE PSPT allowed significant sparing of OARs even in the result of the second plans affected by the anatomical change. PSPT offers benefits over VMAT in reducing dose to several OARs.
Collapse
Affiliation(s)
| | | | - Takashi Ono
- Departmentof Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Sho Oyama
- Department of Radiation Physics and Technology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Shinya Komori
- Department of Radiation Physics and Technology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Kazuhiro Arai
- Department of Radiation Physics and Technology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Yoshitomo Abe
- Department of Radiation Physics and Technology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Takaomi Harada
- Department of Radiation Physics and Technology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Tatsuya Nakamura
- Departmentof Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Hitoshi Wada
- Departmentof Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Yasuhiro Kikuchi
- Departmentof Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Masao Murakami
- Departmentof Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Japan
| | - Yoichiro Hosokawa
- Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, Hirosaki, Aomori, Japan
| |
Collapse
|
38
|
Sharma S, Zhou O, Thompson R, Gabriel P, Chalian A, Rassekh C, Weinstein GS, O'Malley BW, Aggarwal C, Bauml J, Cohen RB, Lukens JN, Swisher-McClure S, Ghiam AF, Ahn PH, Lin A. Quality of Life of Postoperative Photon versus Proton Radiation Therapy for Oropharynx Cancer. Int J Part Ther 2018; 5:11-17. [PMID: 31773030 PMCID: PMC6874189 DOI: 10.14338/ijpt-18-00032.1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/17/2018] [Indexed: 12/24/2022] Open
Abstract
Purpose: Quality of life (QOL) for patients with oropharyngeal squamous cell cancer is negatively affected by conventional radiation (RT) owing to radiation exposure to normal tissues. Proton therapy, via pencil beam scanning (PBS), can better spare many of these tissues, and may thereby improve QOL. Patients and Methods: Patient-reported outcomes were prospectively collected from patients treated from April 2013 to April 2015. Patients were treated with PBS or intensity-modulated radiation therapy (IMRT) via volumetric arc therapy after transoral robotic surgery. Validated QOL questionnaires were collected before RT, and 3, 6, and 12 months post RT. Results: Sixty-four patients were treated with adjuvant RT after transoral robotic surgery, 33 (52%) with volumetric arc therapy, and 31 (48%) with PBS. Both groups were similar in terms of age, site, stage, and dose delivered. Patients receiving PBS had significantly less dose to many normal structures than those receiving IMRT. These dosimetric advantages with PBS were reflected in higher scores in head and neck specific, as well as general, QOL measures. Most notable was significantly less xerostomia with PBS, on multiple patient-reported outcomes at multiple timepoints (6 and 12 months). Conclusion: Pencil beam scanning, when compared to IMRT, confers a significant dosimetric advantage to many normal organs at risk, with a corresponding benefit in multiple patient-reported QOL parameters in patients receiving adjuvant RT for oropharyngeal squamous cell cancer.
Collapse
Affiliation(s)
- Sonam Sharma
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Olivia Zhou
- College of Arts and Sciences at the University of Pennsylvania, Philadelphia, PA, USA
| | - Reid Thompson
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Peter Gabriel
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Ara Chalian
- Department of Otolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Christopher Rassekh
- Department of Otolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Gregory S Weinstein
- Department of Otolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Bert W O'Malley
- Department of Otolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Charu Aggarwal
- Department of Medical Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Joshua Bauml
- Department of Medical Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Roger B Cohen
- Department of Medical Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - J Nicholas Lukens
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Alireza F Ghiam
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Peter H Ahn
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Alexander Lin
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
39
|
Intensity modulated proton therapy (IMPT) - The future of IMRT for head and neck cancer. Oral Oncol 2018; 88:66-74. [PMID: 30616799 DOI: 10.1016/j.oraloncology.2018.11.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/11/2018] [Accepted: 11/12/2018] [Indexed: 12/13/2022]
Abstract
Radiation therapy plays an integral role in the management of head and neck cancers (HNCs). While most HNC patients have historically been treated with photon-based radiation techniques such as intensity modulated radiation therapy (IMRT), there is a growing awareness of the potential clinical benefits of proton therapy over IMRT in the definitive, postoperative and reirradiation settings given the unique physical properties of protons. Intensity modulated proton therapy (IMPT), also known as "pencil beam proton therapy," is a sophisticated mode of proton therapy that is analogous to IMRT and an active area of investigation in cancer care. Multifield optimization IMPT allows for high quality plans that can target superficially located HNCs as well as large neck volumes while significantly reducing integral doses. Several dosimetric studies have demonstrated the superiority of IMPT over IMRT to improve dose sparing of nearby organs such as the larynx, salivary glands, and esophagus. Evidence of the clinical translation of these dosimetric advantages has been demonstrated with documented toxicity reductions (such as decreased feeding tube dependency) after IMPT for patients with HNCs. While there are relative challenges to IMPT planning that exist today such as particle range uncertainties and high sensitivity to anatomical changes, ongoing investigations in image-guidance techniques and robust optimization methods are promising. A systematic approach towards utilizing IMPT and additional prospective studies are necessary in order to more accurately estimate the clinical benefit of IMPT over IMRT and passive proton therapy on a case-by-case basis for patients with sub-site specific HNCs.
Collapse
|
40
|
Dosimetric Comparisons of Volumetric Modulated Arc Therapy and Tomotherapy for Early T-Stage Nasopharyngeal Carcinoma. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2653497. [PMID: 29967769 PMCID: PMC6008744 DOI: 10.1155/2018/2653497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/12/2018] [Indexed: 11/23/2022]
Abstract
Purpose To compare the dosimetric differences between volumetric modulated arc therapy (VMAT) and helical tomotherapy (HT) in treating early T-stage nasopharyngeal carcinoma (NPC). Method Ten patients with early T-stage NPC who received tomotherapy using simultaneously integrated boost (SIB) strategies were replanned with VMAT (RapidArc of Varian, dual-arc). Dosimetric comparisons between the RapidArc plan and the HT plan included the following: (1) D98, homogeneity, and conformity of PTVs; (2) sparing of organs at risk (OARs); (3) delivery time and monitor units (MUs). Results (1) Compared with RapidArc, HT achieved better dose conformity (CI of PGTVnx + nd: 0.861 versus 0.818, P = 0.004). (2) In terms of OAR protection, RapidArc exhibited significant superiority in sparing ipsilateral optic nerve (Dmax: 27.5Gy versus 49.1Gy, P < 0.001; D2: 23.5Gy versus 48.2Gy, P < 0.001), contralateral optic nerve (Dmax: 30.4Gy versus 49.2Gy, P < 0.001; D2: 26.2Gy versus 48.1Gy, P < 0.001), and optic chiasm (Dmax: 32.8Gy versus 48.3Gy, P < 0.001; D2: 30Gy versus 47.6Gy, P < 0.001). HT demonstrated a superior ability to protect the brain stem (D1cc: 43.0Gy versus 45.2Gy, P = 0.012), ipsilateral temporal lobe (Dmax 64.5Gy versus 66.4 Gy, P = 0.015), contralateral temporal lobe (Dmax: 62.8Gy versus 65.1Gy, P = 0.001), ipsilateral lens (Dmax: 4.27Gy versus 5.24Gy, P = 0.009; D2: 4.00Gy versus 5.05Gy, P = 0.002; Dmean: 2.99Gy versus 4.31Gy, P < 0.001), contralateral lens (Dmax: 4.25Gy versus 5.09Gy, P = 0.047; D2: 3.91Gy versus 4.92Gy, P = 0.005; Dmean: 2.91Gy versus 4.18Gy, P < 0.001), ipsilateral parotid (Dmean: 36.4Gy versus 41.1Gy, P = 0.002; V30Gy: 54.8% versus 70.4%, P = 0.009), and contralateral parotid (Dmean: 33.4Gy versus 39.1Gy, P < 0.001; V30Gy: 48.2% versus 67.3%, P = 0.005). There were no statistically significant differences in spinal cord or pituitary protection between the RapidArc plan and the HT plan. (3) RapidArc achieved a much shorter delivery time (3.8 min versus 7.5 min, P < 0.001) and a lower MU (618MUs versus 5646MUs, P < 0.001). Conclusion Our results show that RapidArc and HT are comparable in D98, dose homogeneity, and protection of the spinal cord and pituitary gland. RapidArc performs better in shortening delivery time, lowering MUs, and sparing the optic nerve and optic chiasm. HT is superior in dose conformity and protection of the brain stem, temporal lobe, lens, and parotid.
Collapse
|
41
|
Schüler E, Eriksson K, Hynning E, Hancock SL, Hiniker SM, Bazalova‐Carter M, Wong T, Le Q, Loo BW, Maxim PG. Very high‐energy electron (
VHEE
) beams in radiation therapy; Treatment plan comparison between
VHEE
,
VMAT
, and
PPBS. Med Phys 2017; 44:2544-2555. [DOI: 10.1002/mp.12233] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 03/15/2017] [Accepted: 03/15/2017] [Indexed: 11/11/2022] Open
Affiliation(s)
- Emil Schüler
- Department of Radiation Oncology Stanford School of Medicine Stanford University Stanford CA USA
| | | | | | - Steven L. Hancock
- Department of Radiation Oncology Stanford School of Medicine Stanford University Stanford CA USA
| | - Susan M. Hiniker
- Department of Radiation Oncology Stanford School of Medicine Stanford University Stanford CA USA
| | | | - Tony Wong
- Seattle Cancer Care Alliance Proton Therapy Center Seattle WA USA
| | - Quynh‐Thu Le
- Department of Radiation Oncology Stanford School of Medicine Stanford University Stanford CA USA
| | - Billy W. Loo
- Department of Radiation Oncology Stanford School of Medicine Stanford University Stanford CA USA
| | - Peter G. Maxim
- Department of Radiation Oncology Stanford School of Medicine Stanford University Stanford CA USA
| |
Collapse
|
42
|
Saba NF, Salama JK, Beitler JJ, Busse PM, Cooper JS, Jones CU, Koyfman S, Quon H, Ridge JA, Siddiqui F, Worden F, Yao M, Yom SS. ACR Appropriateness criteria® for nasopharyngeal carcinoma. Head Neck 2016; 38:979-86. [PMID: 27131050 DOI: 10.1002/hed.24423] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Nasopharyngeal carcinoma (NPC) presents mostly with locally advanced disease and is treated with multimodal therapy; however, consensus is lacking for different clinical scenarios. METHODS The American College of Radiology (ACR) Appropriateness Criteria® are evidence-based guidelines for specific clinical conditions that are reviewed every 3 years by a multidisciplinary expert panel. The guideline development and review include an extensive analysis of current medical literature from peer-reviewed journals and the application of a well-established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances in which evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment. RESULTS The ACR Expert Panel on Radiation Oncology - Head and Neck Cancer developed consensus recommendations for guiding management of nasopharyngeal carcinoma. CONCLUSION Multidisciplinary evaluation is essential to guiding the optimal use of surgery, radiation, and systemic therapy in this disease. © 2015 Wiley Periodicals, Inc. Head Neck 38: 979-986, 2016.
Collapse
Affiliation(s)
- Nabil F Saba
- Emory University, Atlanta, Georgia, American Society of Clinical Oncology
| | | | | | - Paul M Busse
- Massachusetts General Hospital, Boston, Massachusetts
| | | | | | | | - Harry Quon
- Johns Hopkins University, Baltimore, Maryland
| | - John A Ridge
- Fox Chase Cancer Center, Philadelphia, Pennsylvania, American College of Surgeons
| | | | - Francis Worden
- University of Michigan, Ann Arbor, Michigan, American Society of Clinical Oncology
| | - Min Yao
- University Hospitals Case Medical Center, Cleveland, Ohio
| | - Sue S Yom
- University of California San Francisco, San Francisco, California
| | | |
Collapse
|
43
|
Doyen J, Falk AT, Floquet V, Hérault J, Hannoun-Lévi JM. Proton beams in cancer treatments: Clinical outcomes and dosimetric comparisons with photon therapy. Cancer Treat Rev 2016; 43:104-12. [PMID: 26827698 DOI: 10.1016/j.ctrv.2015.12.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 12/24/2015] [Accepted: 12/29/2015] [Indexed: 12/25/2022]
Abstract
PURPOSE To review current evidence of the role of proton therapy (PT) in other tumors than skull base, sinusal/parasinusal, spinal and pediatric tumors; to determine medico-economic aspects raised by PT. MATERIAL AND METHODS A systematic review on Medline was performed with the following keywords: proton therapy, proton beam, protontherapy, cancer; publications with comparison between PT and photon-therapy were also selected. RESULTS In silico studies have shown superiority (better dose delivery to the target and/or to organs at risk) of PT toward photon-therapy in most of thoracic and abdominal malignant tumors. Potential benefits of PT could be: reduction of toxicities (including radiation-induced cancer), increase of tumor control through a dose-escalation approach, hypofractionation. Cost of treatment is always cited as an issue which actually can be managed by a precise patient selection making PT a cost-effective procedure. Comparison plan with photon therapy may be useful to determine the dosimetric and clinical advantages of PT (Normal Tissue Complications Probability). CONCLUSION PT may be associated with a great advantage compared to the best photon-therapies in various types of cancers. Accumulation of clinical data is on-going and will challenge the in silico data analysis. Some indications are associated with strong superiority of PT and may be discussed as a new standard within prospective observational studies.
Collapse
Affiliation(s)
- Jérôme Doyen
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Alexander Tuan Falk
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Vincent Floquet
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Joël Hérault
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France
| | - Jean-Michel Hannoun-Lévi
- Department of Radiation Oncology, Antoine Lacassagne Cancer Center, University of Nice-Sophia, Nice, France.
| |
Collapse
|
44
|
Lewis GD, Holliday EB, Kocak-Uzel E, Hernandez M, Garden AS, Rosenthal DI, Frank SJ. Intensity-modulated proton therapy for nasopharyngeal carcinoma: Decreased radiation dose to normal structures and encouraging clinical outcomes. Head Neck 2015; 38 Suppl 1:E1886-95. [DOI: 10.1002/hed.24341] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2015] [Indexed: 12/25/2022] Open
Affiliation(s)
- Gary D. Lewis
- Department of Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston Texas
| | - Emma B. Holliday
- Department of Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston Texas
| | - Esengul Kocak-Uzel
- Department of Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston Texas
- Department of Radiotherapy; Beykent University; Istanbul Turkey
| | - Mike Hernandez
- Department of Biostatistics; University of Texas MD Anderson Cancer Center; Houston Texas
| | - Adam S. Garden
- Department of Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston Texas
| | - David I. Rosenthal
- Department of Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston Texas
| | - Steven J. Frank
- Department of Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston Texas
| |
Collapse
|
45
|
Abstract
External beam radiation therapy is a commonly utilized treatment modality in the management of head and neck cancer. Given the close proximity of disease to critical normal tissues and structures, the delivery of external beam radiation therapy can result in severe acute and late toxicities, even when delivered with advanced photon-based techniques, such as intensity-modulated radiation therapy. The unique physical characteristics of protons make it a promising option in the treatment of advanced head and neck cancer, with the potential to improve sparing of normal tissues and/or safely escalate radiation doses. Clinical implementation will require the continued development of advanced techniques such as intensity-modulated proton therapy, using pencil beam scanning, as well as rigorous methods of quality assurance and adaptive techniques to accurately adjust to changes in anatomy due to disease response. Ultimately, the widespread adaptation and implementation of proton therapy for head and neck cancer will require direct, prospective comparisons to standard techniques such as intensity-modulated radiation therapy, with a focus on measures such as toxicity, disease control, and quality of life.
Collapse
|
46
|
Holliday EB, Garden AS, Rosenthal DI, Fuller CD, Morrison WH, Gunn GB, Phan J, Beadle BM, Zhu XR, Zhang X, Hanna E, Glisson BS, Hutcheson KA, El-Naggar AK, Hong JH, Hung TM, Uzel EK, Lewis G, Frank SJ. Proton Therapy Reduces Treatment-Related Toxicities for Patients with Nasopharyngeal Cancer: A Case-Match Control Study of Intensity-Modulated Proton Therapy and Intensity-Modulated Photon Therapy. Int J Part Ther 2015. [DOI: 10.14338/ijpt-15-00011.1] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
47
|
Kesarwala AH, Ko CJ, Ning H, Xanthopoulos E, Haglund KE, O'Meara WP, Simone CB, Rengan R. Intensity-modulated proton therapy for elective nodal irradiation and involved-field radiation in the definitive treatment of locally advanced non-small-cell lung cancer: a dosimetric study. Clin Lung Cancer 2015; 16:237-44. [PMID: 25604729 PMCID: PMC4410064 DOI: 10.1016/j.cllc.2014.12.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/26/2014] [Accepted: 12/01/2014] [Indexed: 12/25/2022]
Abstract
BACKGROUND Photon involved-field (IF) radiation therapy (IFRT), the standard for locally advanced (LA) non-small cell lung cancer (NSCLC), results in favorable outcomes without increased isolated nodal failures, perhaps from scattered dose to elective nodal stations. Because of the high conformality of intensity-modulated proton therapy (IMPT), proton IFRT could increase nodal failures. We investigated the feasibility of IMPT for elective nodal irradiation (ENI) in LA-NSCLC. PATIENTS AND METHODS IMPT IFRT plans were generated to the same total dose of 66.6-72 Gy received by 20 LA-NSCLC patients treated with photon IFRT. IMPT ENI plans were generated to 46 cobalt Gray equivalent (CGE) to elective nodal planning treatment volumes (PTV) plus 24 CGE to IF-PTVs. RESULTS Proton IFRT and ENI improved the IF-PTV percentage of volume receiving 95% of the prescribed dose (D95) by 4% (P < .01) compared with photon IFRT. All evaluated dosimetric parameters improved significantly with both proton plans. The lung percentage of volume receiving 20 Gy/CGE (V20) and mean lung dose decreased 18% (P < .01) and 36% (P < .01), respectively, with proton IFRT, and 11% (P = .03) and 26% (P < .01) with ENI. The mean esophagus dose decreased 16% with IFRT and 12% with ENI; heart V25 decreased 63% with both (all P < .01). CONCLUSION This study demonstrates the feasibility of IMPT for LA-NSCLC ENI. Potential decreased toxicity indicates that IMPT could allow ENI while maintaining a favorable therapeutic ratio compared with photon IFRT.
Collapse
Affiliation(s)
- Aparna H Kesarwala
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD.
| | - Christine J Ko
- Division of Radiation Oncology, Department of Radiology, Walter Reed National Military Medical Center, Bethesda, MD
| | - Holly Ning
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Eric Xanthopoulos
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA
| | - Karl E Haglund
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - William P O'Meara
- Division of Radiation Oncology, Department of Radiology, Walter Reed National Military Medical Center, Bethesda, MD
| | - Charles B Simone
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA
| | - Ramesh Rengan
- Department of Radiation Oncology, University of Washington, Seattle, WA
| |
Collapse
|
48
|
Müller BS, Duma MN, Kampfer S, Nill S, Oelfke U, Geinitz H, Wilkens JJ. Impact of interfractional changes in head and neck cancer patients on the delivered dose in intensity modulated radiotherapy with protons and photons. Phys Med 2015; 31:266-72. [PMID: 25724350 DOI: 10.1016/j.ejmp.2015.02.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/03/2015] [Accepted: 02/07/2015] [Indexed: 10/24/2022] Open
Abstract
PURPOSE To investigate the influence of interfractional changes on the delivered dose of intensity modulated proton (IMPT) and photon plans (IMXT). METHODS AND MATERIALS Five postoperative head and neck cancer patients, previously treated with tomotherapy at our institute, were analyzed. The planning study is based on megavoltage (MV) control images. For each patient one IMPT plan and one IMXT plan were generated on the first MV-CT and recalculated on weekly control MV-CTs in the actual treatment position. Dose criteria for evaluation were coverage and conformity of the planning target volume (PTV), as well as mean dose to parotids and maximum dose to spinal cord. RESULTS Considerable dosimetric changes were observed for IMPT and IMXT plans. Proton plans showed a more pronounced increase of maximum dose and decrease of minimum dose with local underdosage occurring even in the center of the PTV (worst IMPT vs. IMXT coverage: 66.7% vs. 85.0%). The doses to organs at risk (OARs) increased during the treatment period. However, the OAR doses of IMPT stayed below corresponding IMXT values at any time. For both modalities treatment plans did not necessarily worsen monotonically throughout the treatment. CONCLUSIONS Although absolute differences between planned and reconstructed doses were larger in IMPT plans, doses to OARs were higher in IMXT plans. Tumor coverage was more stable in IMXT plans; IMPT dose distributions indicated a high risk for local underdosage during the treatment course.
Collapse
Affiliation(s)
- Birgit Sabine Müller
- Department of Radiation Oncology, Technische Universität München, Klinikum rechts der Isar, Munich, Germany; Physik-Department, Technische Universität München, Munich, Germany.
| | - Marciana Nona Duma
- Department of Radiation Oncology, Technische Universität München, Klinikum rechts der Isar, Munich, Germany
| | - Severin Kampfer
- Department of Radiation Oncology, Technische Universität München, Klinikum rechts der Isar, Munich, Germany; Physik-Department, Technische Universität München, Munich, Germany
| | - Simeon Nill
- Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - Uwe Oelfke
- Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - Hans Geinitz
- Department of Radiation Oncology, Krankenhaus der Barmherzigen Schwestern Linz, Linz, Austria; Medical Faculty, Johannes Kepler University, Linz, Austria
| | - Jan Jakob Wilkens
- Department of Radiation Oncology, Technische Universität München, Klinikum rechts der Isar, Munich, Germany; Physik-Department, Technische Universität München, Munich, Germany
| |
Collapse
|
49
|
Jakobi A, Bandurska-Luque A, Stützer K, Haase R, Löck S, Wack LJ, Mönnich D, Thorwarth D, Perez D, Lühr A, Zips D, Krause M, Baumann M, Perrin R, Richter C. Identification of Patient Benefit From Proton Therapy for Advanced Head and Neck Cancer Patients Based on Individual and Subgroup Normal Tissue Complication Probability Analysis. Int J Radiat Oncol Biol Phys 2015; 92:1165-1174. [PMID: 26194685 DOI: 10.1016/j.ijrobp.2015.04.031] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 04/13/2015] [Accepted: 04/17/2015] [Indexed: 12/25/2022]
Abstract
PURPOSE The purpose of this study was to determine, by treatment plan comparison along with normal tissue complication probability (NTCP) modeling, whether a subpopulation of patients with head and neck squamous cell carcinoma (HNSCC) could be identified that would gain substantial benefit from proton therapy in terms of NTCP. METHODS AND MATERIALS For 45 HNSCC patients, intensity modulated radiation therapy (IMRT) was compared to intensity modulated proton therapy (IMPT). Physical dose distributions were evaluated as well as the resulting NTCP values, using modern models for acute mucositis, xerostomia, aspiration, dysphagia, laryngeal edema, and trismus. Patient subgroups were defined based on primary tumor location. RESULTS Generally, IMPT reduced the NTCP values while keeping similar target coverage for all patients. Subgroup analyses revealed a higher individual reduction of swallowing-related side effects by IMPT for patients with tumors in the upper head and neck area, whereas the risk reduction of acute mucositis was more pronounced in patients with tumors in the larynx region. More patients with tumors in the upper head and neck area had a reduction in NTCP of more than 10%. CONCLUSIONS Subgrouping can help to identify patients who may benefit more than others from the use of IMPT and, thus, can be a useful tool for a preselection of patients in the clinic where there are limited PT resources. Because the individual benefit differs within a subgroup, the relative merits should additionally be evaluated by individual treatment plan comparisons.
Collapse
Affiliation(s)
- Annika Jakobi
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.
| | - Anna Bandurska-Luque
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Kristin Stützer
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Robert Haase
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Steffen Löck
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Linda-Jacqueline Wack
- Section for Biomedical Physics, University Hospital for Radiation Oncology, Eberhard Karls Universät Tübingen, Germany
| | - David Mönnich
- Section for Biomedical Physics, University Hospital for Radiation Oncology, Eberhard Karls Universät Tübingen, Germany; German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Tübingen, Germany
| | - Daniela Thorwarth
- Section for Biomedical Physics, University Hospital for Radiation Oncology, Eberhard Karls Universät Tübingen, Germany
| | - Damien Perez
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Dresden, Germany
| | - Armin Lühr
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Dresden, Germany
| | - Daniel Zips
- Department of Radiation Oncology, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Mechthild Krause
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Dresden, Germany; Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology, Dresden, Germany
| | - Michael Baumann
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Dresden, Germany; Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology, Dresden, Germany
| | - Rosalind Perrin
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; Paul Scherrer Institute, Villigen, Switzerland
| | - Christian Richter
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Dresden, Germany; Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology, Dresden, Germany
| |
Collapse
|
50
|
Comparison of the light charged particles on scatter radiation dose in thyroid hadron therapy. J Biomed Phys Eng 2014; 4:75-82. [PMID: 25505774 PMCID: PMC4258864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Indexed: 11/14/2022]
Abstract
BACKGROUND Hadron therapy is a novel technique of cancer radiation therapy which employs charged particles beams, (1)H and light ions in particular. Due to their physical and radiobiological properties, they allow one to obtain a more conformal treatment, sparing better the healthy tissues located in proximity of the tumor and allowing a higher control of the disease. Objective : As it is well known, these light particles can interact with nuclei in the tissue, and produce the different secondary particles such as neutron and photon. These particles can damage specially the critical organs behind of thyroid gland. METHODS In this research, we simulated neck geometry by MCNPX code and calculated the light particles dose at distance of 2.14 cm in thyroid gland, for different particles beam: (1)H, (2)H, (3)He, and (4)He. Thyroid treatment is important because the spine and vertebrae is situated right behind to the thyroid gland on the posterior side. RESULTS The results show that (2)H has the most total flux for photon and neutron, 1.944E-3 and 1.7666E-2, respectively. Whereas (1)H and (3)He have best conditions, 8.88609E-4 and 1.35431E-3 for photon, 4.90506E-4 and 4.34057E-3 for neutron, respectively. The same calculation has obtained for energy depositions for these particles. CONCLUSION In this research, we investigated that which of these light particles can deliver the maximum dose to the normal tissues and the minimum dose to the tumor. By comparing these results for the mentioned light particles, we find out (1)H and (3)He is the best therapy choices for thyroid glands whereas (2)H is the worst.
Collapse
|