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Yuan JJ, Ding JW, Li JW, Hu RH, Gong D, Hu JL, Zhu KB, Liu Y, Ding YH, Wei JW, Zeng JL, Lu ZB, Yin WH, Ai SF, Zha GH, Zhang ZL, Zou R, Zeng L. Nimotuzumab plus induction chemotherapy followed by radiotherapy/concurrent chemoradiotherapy plus nimotuzumab for locally advanced nasopharyngeal carcinoma: protocol of a multicentre, open-label, single-arm, prospective phase II trial. BMJ Open 2022; 12:e051594. [PMID: 36008072 PMCID: PMC9422822 DOI: 10.1136/bmjopen-2021-051594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022] Open
Abstract
UNLABELLED Epidermal growth factor receptor (EGFR) is a therapeutic target in nasopharyngeal carcinoma (NPC). The optimal combined modality of optimal combined modality of anti--EGFR monoclonal antibodies, induction chemotherapy (ICT), concurrent chemotherapy and radiotherapy for NPC remains poorly defined. None of previous studies have developed subsequent treatment strategies on the basis of stratification according to the efficacy following ICT plus anti-EGFR mAbs. This study aims to increase treatment intensity for patients with poor efficacy of ICT and reduce treatment toxicity for patients with favourable efficacy of ICT by assessing whether the efficacy of this treatment regimen is non-inferior to ICT plus concurrent chemoradiotherapy (historic controls). INTRODUCTION METHODS AND ANALYSIS: Pathology-confirmed WHO type II/III NPC patients at clinical stage III-IVA (eighth American Joint Committee on Cancer/Union for International Cancer Control staging system) will be included in the study. They will receive ICT plus nimotuzumab (NTZ), followed by radiotherapy plus NTZ or concurrent chemoradiotherapy plus NTZ (stratified based on the efficacy of ICT plus NTZ). The primary endpoint is 3-year failure-free survival rate; while the secondary endpoints are 3-year overall survival rate, distant metastasis-free survival rate and locoregional recurrence-free survival rate, and short-term remission rate of tumour and treatment toxicity. ETHICS AND DISSEMINATION The study protocol has been approved by the Ethics Committee of the Second Affiliated Hospital of Nanchang University. Our findings will be disseminated in a peer-reviewed journal. Implementation strategies are in place to ensure privacy and confidentiality of participants. TRIAL REGISTRATION NUMBER ChiCTR2000041139.
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Affiliation(s)
- Jing-Jing Yuan
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - Jian-Wu Ding
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
| | - Jin-Wei Li
- Department of Radiotherapy, Ganzhou Cancer Hospital, Ganzhou, China
| | - Rong-Huan Hu
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
| | - Dan Gong
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
| | - Jia-Li Hu
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
| | - Kai-Bin Zhu
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
| | - Yan Liu
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
| | - Yu-Hai Ding
- Department of Oncology, Ganzhou People's Hospital, Ganzhou, Jiangxi, China
| | - Jia-Wang Wei
- Department of Oncology, Ganzhou People's Hospital, Ganzhou, Jiangxi, China
| | - Jian-Lun Zeng
- Department of Oncology, Pingxiang People's Hospital, Pingxiang, China
| | - Zhi-Bing Lu
- Department of Oncology, Pingxiang People's Hospital, Pingxiang, China
| | - Wei-Hua Yin
- Department of Oncology, Yichun People's Hospital, Yichun, China
| | - Su-Fen Ai
- Department of Oncology, Yichun People's Hospital, Yichun, China
| | - Guo-Hua Zha
- Department of Oncology, Fuzhou First People's Hospital, Fuzhou, China
| | - Zhi-Lin Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Nanchang University Second Affiliated Hospital, Nanchang, China
| | - Rui Zou
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - Lei Zeng
- Department Of Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
- Jiangxi Key Laboratory of Clinical Translational Cancer Research, Nanchang, China
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2
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Kao WC, Hsu SH, Lin CL, Lin CY, Chen SW, Chen YX, Chen CH, Lee SW, Tsao CJ, Huang WT, Chen SH, Hsiao SY. Role of high ubiquitin‑conjugating enzyme E2 expression as a prognostic factor in nasopharyngeal carcinoma. Oncol Lett 2022; 23:194. [PMID: 35572494 PMCID: PMC9100605 DOI: 10.3892/ol.2022.13314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 04/07/2022] [Indexed: 12/24/2022] Open
Abstract
The incidence of nasopharyngeal carcinoma (NPC) in Southeast Asia and Taiwan is high due to epidemiological factors. Cisplatin-based chemoradiotherapy is an important treatment strategy with excellent outcomes for patients with NPC. However, the outcomes for patients who are refractory to cisplatin-based therapy are poor. Methods for risk stratification of patients with NPC undergoing cisplatin-based chemoradiotherapy require to be investigated. A previous study indicated that ubiquitin-conjugating enzyme E2 B (UBE2B) was able to regulate alkylating drug sensitivity in NPC cells. In the present study, the clinical significance of UBE2B expression in patients with NPC was analyzed. Analysis of the two available NPC datasets containing the UBE2B expression profile (GSE12452 and GSE68799) was performed to evaluate the UBE2B expression levels in NPC tissues compared with nasopharyngeal mucosal epithelial tissues. Furthermore, immunohistochemical staining was performed using anti-UBE2B antibodies on samples from 124 patients with NPC who underwent cisplatin-based chemoradiotherapy. Disease-specific survival (DSS), distant metastatic-free survival (DMeFS) and local recurrence-free survival (LRFS) of patients with high and low UBE2B expression was analyzed. Furthermore, the associations between UBE2B expression and the biological behavior of NPC cells were investigated in vitro. Using public NPC datasets and in vitro studies, it was identified that UBE2B expression levels were increased in NPC tumor tissues compared with those in mucosal epithelial tissues. The cell proliferation ability was decreased in UBE2B-deficient NPC cells as compared with that in UBE2B-proficient cells. Immunohistochemical analysis of 124 NPC tissues from patients who underwent cisplatin-based chemoradiotherapy indicated that high UBE2B expression levels were associated with poor DSS, DMeFS and LRFS. Multivariate regression analysis of factors influencing survival also confirmed that high UBE2B expression levels were a statistically significant independent risk factor for poor clinical outcomes in terms of DSS [hazard ratio (HR), 1.955; 95% CI 1.164-3.282], DMeFS (HR, 2.141; 95% CI 1.206-3.801) and LRFS (HR, 2.557; 95 CI 1.313-4.981). In vitro analysis indicated that O6-methylguanine-DNA methyltransferase attenuated cisplatin sensitivity induced by knockdown of UBE2B in NPC cells. In conclusion, the present study demonstrated that high UBE2B expression is associated with poor clinical outcomes for patients with NPC treated with cisplatin-based chemoradiotherapy.
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Affiliation(s)
- Wan-Chen Kao
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Shih-Han Hsu
- National Institute of Cancer Research, National Health Research Institutes, Tainan 704016, Taiwan, R.O.C
| | - Chien-Liang Lin
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Cheng-Yao Lin
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Shang-Wen Chen
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Yan-Xun Chen
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Chao-Hsun Chen
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Chao-Jung Tsao
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Wen-Tsung Huang
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
| | - Shang-Hung Chen
- National Institute of Cancer Research, National Health Research Institutes, Tainan 704016, Taiwan, R.O.C
| | - Sheng-Yen Hsiao
- Division of Hematology‑Oncology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 736402, Taiwan, R.O.C
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3
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Chang SL, Chan TC, Chen TJ, Yang CC, Tsai HH, Yeh CF, Lee SW, Lai HY. High SPIN4 Expression Is Linked to Advanced Nodal Status and Inferior Prognosis in Nasopharyngeal Carcinoma Patients. Life (Basel) 2021; 11:life11090912. [PMID: 34575061 PMCID: PMC8470428 DOI: 10.3390/life11090912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 11/24/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC), characterized by the infiltration of lymphocytes, is a malignancy derived from the epithelium of the nasopharynx. Despite its sensitivity to radiation and chemotherapy, NPC has a high propensity for recurrence and metastasis. Although lymph node levels have been indicated as an independent prognostic factor for NPC, there has been no precise prognostic biomarker to predict clinical outcomes for NPC before advanced disease. In the present study, we surveyed differentially expressed genes in NPC via the next-generation sequencing (NGS)-based Oncomine database and identified the spindlin family member 4 (SPIN4) gene as the most relevant to advanced nodal status. We collected 124 tumor samples from NPC patients receiving biopsy, and the expression level of SPIN4 was evaluated by immunohistochemistry. The results showed that tumors with high SPIN4 expression were significantly correlated with advanced nodal status (p < 0.001) and advanced AJCC stages (p < 0.001). High SPIN4 expression in tumor samples was an unfavorable prognostic factor for all three endpoints at the univariate level: disease-specific survival (DSS), distal metastasis-free survival (DMeFS), and local recurrence-free survival (LRFS) (all p < 0.05). High SPIN4 expression remained independently prognostic of worse DMeFS (p = 0.049) at the multivariate level. Using bioinformatics analysis, we further found that high SPIN4 level may link tight junctions to cancer cell survival. Collectively, these results imply that high SPIN4 expression is linked to an aggressive clinical course, including advanced nodal status and poor survival in NPC patients, emphasizing the promising prognostic utility of SPIN4 expression.
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Affiliation(s)
- Shih-Lun Chang
- Department of Otolaryngology, Chi Mei Medical Center, Tainan 710, Taiwan;
- Department of Optometry, Chung Hwa University of Medical Technology, Tainan 717, Taiwan
| | - Ti-Chun Chan
- Department of Medical Research, Chi Mei Medical Center, Tainan 710, Taiwan; (T.-C.C.); (H.-H.T.)
- National Institute of Cancer Research, National Health Research Institute, Tainan 704, Taiwan
| | - Tzu-Ju Chen
- Department of Clinical Pathology, Chi Mei Medical Center, Tainan 710, Taiwan;
- Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Ching-Chieh Yang
- Department of Radiation Oncology, Chi Mei Medical Center, Tainan 710, Taiwan;
- Department of Pharmacy, Chia-Nan University of Pharmacy and Science, Tainan 717, Taiwan
| | - Hsin-Hwa Tsai
- Department of Medical Research, Chi Mei Medical Center, Tainan 710, Taiwan; (T.-C.C.); (H.-H.T.)
- Department of Clinical Pathology, Chi Mei Medical Center, Tainan 710, Taiwan;
| | - Cheng-Fa Yeh
- Department of Internal Medicine, Chi Mei Medical Center, Tainan 710, Taiwan;
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi Mei Medical Center, Liouying 736, Taiwan
- Correspondence: (S.-W.L.); (H.-Y.L.)
| | - Hong-Yue Lai
- Department of Medical Research, Chi Mei Medical Center, Tainan 710, Taiwan; (T.-C.C.); (H.-H.T.)
- Department of Clinical Pathology, Chi Mei Medical Center, Tainan 710, Taiwan;
- Correspondence: (S.-W.L.); (H.-Y.L.)
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4
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Chang SL, Lee SW, Yang SF, Chien CC, Chan TC, Chen TJ, Yang CC, Li CF, Wei YC. Expression and prognostic utility of SSX2IP in patients with nasopharyngeal carcinoma. APMIS 2020; 128:287-297. [PMID: 31837171 DOI: 10.1111/apm.13023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 12/10/2019] [Indexed: 01/20/2023]
Abstract
Cell adhesion affects carcinogenesis, tumor progression, and metastasis. We datamined a published transcriptome (GSE12452) of nasopharyngeal carcinoma (NPC) and identified SSX2IP as a significantly upregulated gene in NPC carcinogenesis among genes associated with cell adhesion (GO:0007155). Consequently, we assessed SSX2IP protein expression and its prognostic significance in 124 patients with NPC using immunohistochemistry and the H-score method. The status of SSX2IP immunoexpression correlated with clinical and pathological characteristics, as well as oncological outcomes. High levels of SSX2IP expression were significantly associated with more advanced primary tumor and TNM stages. Kaplan-Meier and log-rank analyses revealed that high levels of SSX2IP expression, and advanced tumor stage and lymph node metastasis were significantly associated with lower rates of local recurrence-free survival (LRFS), distant metastasis-free survival (DMeFS), and disease-specific (DSS) survival. Multivariate analysis showed that high levels of SSX2IP expression significantly predicted DSS (hazard ratio [HR], 4.290; 95% confidence interval [CI], 2.271-8.102; p < 0.001), DMeFS (HR, 4.159' 95% CI, 2.072-8.345; p < 0.001), and LRFS (HR, 3.007' 95% CI,: 1.418-6.378; p = 0.004). We associated high levels of SSX2IP immunoexpression with aggressive pathological features and worse oncological outcomes, suggesting its potential therapeutic value for patients with NPC.
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Affiliation(s)
- Shih-Lun Chang
- Department of Otolaryngology, Chi Mei Medical Center, Tainan, Taiwan.,Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi Mei Medical Center, Liouying, Taiwan
| | - Sheau-Fang Yang
- Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Pathology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chu-Chun Chien
- Department of Pathology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Pathology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Ti-Chun Chan
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Tzu-Ju Chen
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan.,Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan.,Institute of Biomedical Science, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Ching-Chieh Yang
- Department of Radiation Oncology, Chi Mei Medical Center, Tainan, Taiwan.,Department of Pharmacy, Chia-Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Chien-Feng Li
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan.,National Institute of Cancer Research, National Health Research Institute, Tainan, Taiwan.,Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - Yu-Ching Wei
- Department of Pathology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Pathology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
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5
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Bacorro WR, Agas RAF, Cabrera SMR, Bojador MR, Sogono PG, Mejia MBA, Sy Ortin TT. A novel applicator design for intracavitary brachytherapy of the nasopharynx: Simulated reconstruction, image-guided adaptive brachytherapy planning, and dosimetry. Brachytherapy 2018; 17:709-717. [DOI: 10.1016/j.brachy.2018.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 11/16/2022]
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6
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Wei YC, Yang SF, Chang SL, Chen TJ, Lee SW, Chen HS, Lin LC, Li CF. Periostin overexpression is associated with worse prognosis in nasopharyngeal carcinoma from endemic area: a cohort study. Onco Targets Ther 2018; 11:3205-3213. [PMID: 29881294 PMCID: PMC5985804 DOI: 10.2147/ott.s163626] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Purpose Nasopharyngeal carcinoma (NPC) is a heterogeneous disease. We searched for genes that function in cell adhesion in GSE12452, a published transcriptomic database. We found that POSTN, which encodes periostin (POSTN), was significantly upregulated in NPC tumorigenesis. Herein, we sought to analyze the expression of POSTN and its prognostic significances in patients with NPC. Materials and methods In this single-institution retrospective study, we determined and analyzed POSTN expression by immunohistochemistry and H-score method, respectively, in 124 patients with NPC. The results indicated that POSTN expression was correlated with the clinicopathologic features, disease-specific survival (DSS), distant metastasis-free survival (DMFS), and local recurrence-free survival (LRFS) of NPC. We performed univariate and multivariate analyses to determinate the statistical significance. Results High POSTN expression was significantly associated with lymph node metastasis (p=0.004) and advanced American Joint Committee on Cancer (AJCC) stage (p=0.006). In univariate analysis, high POSTN expression served as a significant prognostic factor for worse DSS (p=0.0002), DMFS (p=0.0138), and LRFS (p=0.0028). In multivariate Cox regression analyses, which was adjusted for AJCC stages, POSTN expression was independently associated with cancer-related death (HR: 2.311; 95% CI: 1.327-4.027; p=0.003) and local tumor recurrence (HR: 3.187; 95% CI: 1.108-4.408; p=0.024). Conclusion High POSTN expression is associated with tumor aggressiveness and worse clinical outcomes in NPC, indicating that it may be a potential prognostic biomarker and a therapeutic target.
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Affiliation(s)
- Yu-Ching Wei
- Department of Pathology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Department of Pathology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sheau-Fang Yang
- Department of Pathology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shih-Lun Chang
- Department of Otolaryngology, Chi Mei Medical Center, Tainan, Taiwan.,Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Tzu-Ju Chen
- Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan.,Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi Mei Medical Center, Liouying, Tainan, Taiwan
| | - Hung-Sung Chen
- Department of Pathology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Li-Ching Lin
- Department of Radiation Oncology, Chi Mei Medical Center, Tainan, Taiwan
| | - Chien-Feng Li
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan.,National Institute of Cancer Research, National Health Research Institute, Tainan, Taiwan.,Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan, Taiwan
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7
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Palazzi M, Guzzo M, Bossi P, Tomatis S, Cerrotta A, Cantú G, Locati LD, Licitra L. Regionally Advanced Nasopharyngeal Carcinoma: Long-Term Outcome after Sequential Chemotherapy and Radiotherapy. TUMORI JOURNAL 2018; 90:60-5. [PMID: 15143974 DOI: 10.1177/030089160409000114] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and background To evaluate the long-term clinical outcome of 61 patients with regionally advanced nasopharyngeal carcinoma treated with sequential chemotherapy and radiotherapy within a phase II trial. Methods The trial evaluated a combined modality regimen including 3 cycles of induction polychemotherapy (epirubicin 70 mg/m2 d1, and cisplatin 100 mg/m2 d1, both recycled every 3 weeks) followed by definitive radiotherapy to the primary site (64–70 Gy) and the neck (50–70 Gy). Patients included in the trial had pathologically confirmed nasopharyngeal carcinoma; stage (UICC 1987) T-any, N2-3, M0; ECOG performance status 0–1. Sixty-one patients were enrolled between 1990 and 1996; stage according to UICC 1997 was IIb in 8%, III in 36% and IV in 56% of the patients; histology was WHO type 1–2 in 11% and WHO type 3 in 89% of cases. Minimum follow-up of 33 surviving patients is 5.2 years. Results Clinical failure has been observed in 30 patients (49%): initial failure, observed within the third year of follow-up in all but one case, was local alone in 6 (20%), regional alone in 10 (33%), local and regional in 1 (3%), regional and distant in 1 (3%), and distant alone in 12 patients (40%). Seven patients received salvage surgery to the neck, 2 of them still disease-free at 10 and 11 years from salvage surgery; 4 patients with an isolated local relapse were re-irradiated, and one of them was alive and well at 6.5 years from salvage radiation. At 5-year local control, regional control and distant metastasis-free rates were 83%, 74% and 73%, respectively; overall and disease-free survival were 64% and 51%. Late effects of initial treatment, as evaluated in 30 patients surviving 5 years without relapse, were generally acceptable, but some degree of xerostomia, dental damage, trismus and hearing loss were reported by a significant proportion of patients (respectively 100%, 88%, 76% and 86%). Conclusions In our experience, long-term clinical cure of regionally advanced nasopharyngeal carcinoma was obtained in 51% of cases treated with chemotherapy and radiotherapy. Salvage treatments (neck surgery, local re-irradiation) are worthy, as they increase the cure rate by approximately 10%, raising 5-year survival to over 60%. Late effects are significant, calling for refinements in radiation technique, better integration with chemotherapy to possibly decrease the need for higher radiation dose, and/or use of effective radioprotectants.
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Affiliation(s)
- Mauro Palazzi
- Department of Radiotherapy, National Cancer Institute, Milan, Italy.
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8
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Cai CF, Liu LM, Shangguan HJ, Liu CS, Luo XY, Li YM. Anti-oncogenic activity of Chibby in the development of human nasopharyngeal carcinoma. Oncol Lett 2018; 15:5849-5858. [PMID: 29552214 DOI: 10.3892/ol.2018.8009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 12/11/2017] [Indexed: 01/16/2023] Open
Abstract
The Wnt/β-catenin pathway serves important roles in cancer development. The expression and function of Chibby (Cby), as a direct antagonist of β-catenin, in nasopharyngeal carcinoma (NPC) has not been fully investigated. The present study revealed that the mRNA and protein expression of Cby was significantly lower in NPC tissue than in the adjacent normal tissue. Low expression of Cby was significantly associated with the tumor and the clinical staging. Furthermore, Cby overexpression inhibited the proliferation of human NPC SUNE1 cells and induced cell cycle arrest. In addition, Cby overexpression also significantly enhanced the susceptibility of SUNE1 cells to apoptosis. These results indicated that Cby might serve as an anti-oncogenic gene in the development of NPC and could represent a potential therapeutic target for the human NPC therapy.
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Affiliation(s)
- Cheng-Fu Cai
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Li-Man Liu
- Institute of Stem Cell and Regeneration Medicine, Institutions of Biomedical Science, Fudan University, Shanghai 200031, P.R. China
| | - Han-Jing Shangguan
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Cun-Shan Liu
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Xian-Yang Luo
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Yi-Meng Li
- Department of Otorhinolaryngology, Affiliated Eye and ENT Hospital of Fudan University, Shanghai 200031, P.R. China
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9
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Muhanna N, Chan H, Qiu J, Daly M, Khan T, Doglietto F, Kucharczyk W, Goldstein DP, Irish JC, de Almeida JR. Volumetric Analysis of Endoscopic and Maxillary Swing Surgical Approaches for Nasopharyngectomy. J Neurol Surg B Skull Base 2018; 79:466-474. [PMID: 30210974 DOI: 10.1055/s-0037-1617432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 11/10/2017] [Indexed: 10/18/2022] Open
Abstract
Objectives/Hypothesis The endoscopic endonasal approach (EEA) for nasopharyngectomy is an alternative to the maxillary swing approach (MSA) for selected recurrent nasopharyngeal carcinomas (NPC). We compare the access between these approaches. Methods Three cadaver specimens were used to compare access volumes of the EEA and MSA. Exposure volumes were calculated using image guidance registration to cone beam computed tomography and tracking of accessible tissue with volumetric quantification. The area of exposure to the carotid artery was measured. Results The MSA provided higher volumes for access volume compared with the EEA (66.6 vs 39.1 cm 3 , p = 0.009). The working area was larger in the MSA (80.2 vs 56.9 cm 2 , p = 0.06). The exposure to the carotid artery was higher in the MSA (1.88 vs 1.62 cm 2 , p = 0.04). The MSA provided larger volume of exposure for tumors of the parapharyngeal space with exposure below the palate. Conclusions This study suggests that the MSA for nasopharyngectomy provides a larger volume of exposure. However, much of the increased exposure relates to exposure of the parapharyngeal space below the palate. The EEA provides adequate access to superior anatomical structures.
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Affiliation(s)
- Nidal Muhanna
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada.,Department of Surgical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Department of Otolaryngology - Head & Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Harley Chan
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada
| | - Jimmy Qiu
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada
| | - Michael Daly
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada
| | - Tahsin Khan
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada
| | - Francesco Doglietto
- Department of Neurosurgery, University of Brescia, Owensboro, Kentucky 42301, United States
| | - Walter Kucharczyk
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada.,Department of Medical Imaging, Toronto General Hospital, Toronto, Ontario, Canada
| | - David P Goldstein
- Department of Surgical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Department of Otolaryngology - Head & Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Jonathan C Irish
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada.,Department of Surgical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Department of Otolaryngology - Head & Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - John R de Almeida
- TECHNA Institute, University Health Network, Toronto, Ontario, Canada.,Department of Surgical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Department of Otolaryngology - Head & Neck Surgery, University of Toronto, Toronto, Ontario, Canada
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10
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Acute toxicity of concomitant boost radiation therapy by volumetric-modulated arc therapy in head and neck cancers. JOURNAL OF RADIOTHERAPY IN PRACTICE 2017. [DOI: 10.1017/s1460396917000334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractIntroductionVolumetric-modulated arc therapy (VMAT) is an advanced form of intensity-modulated radiation therapy that reduces treatment time without compromising plan quality. This study assessed acute toxicities in patients having carcinomas of oropharynx, larynx and hypopharynx treated with concomitant boost radiation therapy by VMAT.Materials and methodsIn this study, 30 patients of stages II–IVA disease were treated with concomitant boost radiation therapy using VMAT and those with stages III and IV also received concurrent chemotherapy with cisplatin 100 mg/m2 weekly thrice for two cycles. The total dose was 68·4 Gy/40 fractions/5.5 weeks (1·8 Gy/fraction/day to the large field for 28 fractions +1·5 Gy/fraction/day to boost field for the last 12 days of treatment). Radiation Therapy Oncology Group acute radiation morbidity scoring criteria was used to grade acute effects.ResultsAll patients completed scheduled treatment with median duration of 44 days. No grade 4 skin and mucosal toxicities were observed; grade 3 skin and mucosal toxicities seen in six (20%) and eight (26·67%) patients, respectively; grade 3 dysphagia and laryngeal toxicity in eight (26·67%) and three (10%) patients, respectively; two patients had grade 4 laryngeal toxicity. No grade 3 or grade 4 haematological toxicities were seen.ConclusionVMAT-based concomitant boost radiation therapy allows for dose escalation with good patient tolerance by limiting acute toxicities.
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11
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Chang SL, Chan TC, Chen TJ, Lee SW, Lin LC, Win KT. HOXC6 Overexpression Is Associated With Ki-67 Expression and Poor Survival in NPC Patients. J Cancer 2017; 8:1647-1654. [PMID: 28775784 PMCID: PMC5535720 DOI: 10.7150/jca.18893] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/26/2017] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND: Homeobox (HOX) genes are expressed in adult cells and regulate expression of genes involved in cell proliferation as well as cell-cell and cell-extracellular matrix interactions. Dysregulation of HOX gene expression plays important roles in carcinogenesis in a variety of organs. Through data mining on a published transcriptome dataset, this study first identified Homeobox protein Hox-C6 (HOXC6) gene as one of the differentially upregulated genes in nasopharyngeal carcinoma (NPC). We aimed to evaluate HOXC6 expression and its prognostic effect in a large cohort of NPC patients. METHODS: We retrospectively examined the HOXC6 expression and Ki-67 index by immunohistochemistry in biopsy specimens from 124 patients with non-metastasized NPC. The results were correlated with the clinicopathological variables including disease-specific survival (DSS), metastasis-free survival (MeFS), and local recurrence-free survival (LRFS). RESULTS: HOXC6 high expression was positively correlated with increased Ki-67 labeling index, and significantly associated with increment of tumor stage (p=0.024), advanced nodal status (p<0.001) and American Joint Committee on Cancer (AJCC) stage (p=0.002). Its expression also correlated with worse prognosis in terms of DSS (p=0.008), MeFS (p=0.0047) univariately. In multivariate analyses, HOXC6 expression still remained prognostically independent to portend worse DSS (p=0.015, hazard ratio=1.988) and MeFS (p=0.036, hazard ratio=1.899), together with stage III-IV (p=0.024, DSS; p=0.043, MeFS). CONCLUSION: In summary, our results suggest HOXC6 may play a critical role in NPC progression and may serve as a potential prognostic biomarker in NPC patients.
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Affiliation(s)
- Shih-Lun Chang
- Department of Otolaryngology, Chi Mei Medical Center, Yongkang District, Tainan City, Taiwan.,Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Ti-Chun Chan
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Tzu-Ju Chen
- Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan.,Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi Mei Medical Center, Liouying, Tainan, Taiwan
| | - Li-Ching Lin
- Department of Radiation Oncology, Chi Mei Medical Center, Tainan, Taiwan
| | - Khin Than Win
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan
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12
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Lee YY, Chao TB, Sheu MJ, Tian YF, Chen TJ, Lee SW, He HL, Chang IW, Hsing CH, Lin CY, Li CF. Glutamate Decarboxylase 1 Overexpression as a Poor Prognostic Factor in Patients with Nasopharyngeal Carcinoma. J Cancer 2016; 7:1716-1723. [PMID: 27698909 PMCID: PMC5039393 DOI: 10.7150/jca.15667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 06/07/2016] [Indexed: 12/13/2022] Open
Abstract
Background: Glutamate decarboxylase 1 (GAD1) which serves as a rate-limiting enzyme involving in the production of γ-aminobutyric acid (GABA), exists in the GABAergic neurons in the central nervous system (CNS). Little is known about the relevance of GAD1 to nasopharyngeal carcinoma (NPC). Through data mining on a data set derived from a published transcriptome database, this study first identified GAD1 as a differentially upregulated gene in NPC. We aimed to evaluate GAD1 expression and its prognostic effect on patients with early and locoregionally advanced NPC. Methods: We evaluated GAD1 immunohistochemistry and performed an H-score analysis on biopsy specimens from 124 patients with nonmetastasized NPC receiving treatment. GAD1 overexpression was defined as an H score higher than the median value. The findings of such an analysis are correlated with clinicopathological behaviors and survival rates, namely disease-specific survival (DSS), distant-metastasis-free survival (DMeFS), and local recurrence-free survival (LRFS) rates. Results: GAD1 overexpression was significantly associated with an increase in the primary tumor status (p < 0.001) and American Joint Committee on Cancer (AJCC) stages III-IV (p = 0.002) and was a univariate predictor of adverse outcomes of DSS (p = 0.002), DMeFS (p < 0.0001), and LRFS (p = 0.001). In the multivariate comparison, in addition to advanced AJCC stages III-IV, GAD1 overexpression remained an independent prognosticator of short DSS (p = 0.004, hazard ratio = 2.234), DMeFS (p < 0.001, hazard ratio = 4.218), and LRFS (p = 0.013, hazard ratio = 2.441) rates. Conclusions: Our data reveal that GAD1 overexpression was correlated with advanced disease status and may thus be a critical prognostic indicator of poor outcomes in NPC and a potential therapeutic target to facilitate the development of effective treatment modalities.
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Affiliation(s)
- Yi-Ying Lee
- Department of Pathology, Chi-Mei Medical Center, Liouying, Taiwan
| | - Tung-Bo Chao
- Departments of Colorectal Surgery, Yuan's General Hospital, Kaohsiung, Taiwan;; Department of Health Business Administration, Meiho University, Pingtung, Taiwan
| | - Ming-Jen Sheu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chi-Mei Medical Center, Tainan, Taiwan
| | - Yu-Feng Tian
- Division of General Surgery, Chi Mei Medical Center, Tainan, Taiwan;; Department of Health and Nutrition, Chia Nan University of Pharmacy & Science, Tainan, Taiwan
| | - Tzu-Ju Chen
- Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi-Mei Medical Center, Liouying, Tainan, Taiwan
| | - Hong-Lin He
- Department of Pathology, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan
| | - I-Wei Chang
- Department of Pathology, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Chung-Hsi Hsing
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ching-Yih Lin
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chi-Mei Medical Center, Tainan, Taiwan;; Department of Leisure, Recreation, and Tourism Management, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - Chien-Feng Li
- Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan;; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan, Taiwan;; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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13
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Laskar SG, Baijal G, Rangarajan V, Purandare N, Sengar M, Shah S, Gupta T, Budrukkar A, Murthy V, Pai PS, D'Cruz AK, Agarwal JP. Fluorodeoxyglucose-positron emission tomography in carcinoma nasopharynx: Can we predict outcomes and tailor therapy based on postradiotherapy fluorodeoxyglucose-positron emission tomography? Indian J Med Paediatr Oncol 2016; 37:47-52. [PMID: 27051158 PMCID: PMC4795376 DOI: 10.4103/0971-5851.177030] [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] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Positron emission tomography-computed tomography (PET-CT) is an emerging modality for staging and response evaluation in carcinoma nasopharynx. This study was conducted to evaluate the impact of PET-CT in assessing response and outcomes in carcinoma nasopharynx. MATERIALS AND METHODS Forty-five patients of nonmetastatic carcinoma nasopharynx who underwent PET-CT for response evaluation at 10-12 weeks posttherapy between 2004 and 2009 were evaluated. Patients were classified as responders (Group A) if there was a complete response on PET-CT or as nonresponders (Group B) if there was any uptake above the background activity. Data regarding demographics, treatment, and outcomes were collected from their records and compared across the Groups A and B. RESULTS The median age was 41 years. 42 out of 45 (93.3%) patients had WHO Grade 2B disease (undifferentiated squamous carcinoma). 24.4%, 31.1%, 15.6, and 28.8% patients were in American Joint Committee on Cancer Stage IIb, III, Iva, and IVb. All patients were treated with neoadjuvant chemotherapy followed by concomitant chemoradiotherapy. Forty-five patients, 28 (62.2%) were classified as responders, whereas 17 (37.8%) were classified as nonresponders. There was no significant difference in the age, sex, WHO grade, and stage distribution between the groups. Compliance to treatment was comparable across both groups. The median follow-up was 25.3 months (759 days). The disease-free survival (DFS) of the group was 57.3% at 3 years. The DFS at 3 years was 87.3% and 19.7% for Group A and B, respectively (log-rank test, P < 0.001). Univariate and multivariate analysis revealed Groups to be the only significant factor predicting DFS (P value 0.002 and < 0.001, respectively). In Group B, the most common site of disease failure was distant (9, 53%). CONCLUSION PET-CT can be used to evaluate response and as a tool to identify patients at higher risk of distant failure. Further, this could be exploited to identify patients who may need treatment intensification. This needs to be validated prospectively.
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Affiliation(s)
- Sarbani Ghosh Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Gunjan Baijal
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | | | - Nilendu Purandare
- Department of Bio-Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Manju Sengar
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Sneha Shah
- Department of Bio-Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Tejpal Gupta
- Advanced Centre for Treatment Research and Education in Cancer, Mumbai, Maharashtra, India
| | - Ashwini Budrukkar
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Vedang Murthy
- Advanced Centre for Treatment Research and Education in Cancer, Mumbai, Maharashtra, India
| | - Prathamesh S Pai
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - A K D'Cruz
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - J P Agarwal
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
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14
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Lee YE, He HL, Lee SW, Chen TJ, Chang KY, Hsing CH, Li CF. AMACR overexpression as a poor prognostic factor in patients with nasopharyngeal carcinoma. Tumour Biol 2014; 35:7983-91. [PMID: 24833092 DOI: 10.1007/s13277-014-2065-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 05/06/2014] [Indexed: 11/30/2022] Open
Abstract
The molecular prognostic adjunct in patients with nasopharyngeal carcinomas (NPCs) still remains obscured. Through data mining from published transcriptomic database, alpha-methylacyl-CoA racemase (AMACR) was first identified as a differentially upregulated gene in NPC tissues, which is a key enzyme for isometric conversion of fatty acids entering the β-oxidation. Given the roles of AMACR in prognostication and frontline therapeutic regimen of common carcinomas, such as prostate cancer, we explored AMACR immunoexpression status and its clinical significance in NPC patients. AMACR immunohistochemistry was retrospectively performed and analyzed using H-score for biopsy specimens from 124 NPC patients who received standard treatment without distant metastasis at initial diagnosis. Those cases with H-score larger than the median value were construed as featuring AMACR overexpression. The findings were correlated with the clinicopathological variables, disease-specific survival (DSS), distant metastasis-free survival (DMFS), and local recurrence-free survival (LRFS). Endogenous AMACR protein expressions were assessed by real-time reverse-transcription polymerase chain reaction (RT-PCR) and Western blotting in NPC cells and non-neoplastic mucosal cells. AMACR overexpression was significantly associated with increment of primary tumor status (P = 0.009) and univariately predictive of adverse outcomes for DSS, DMFS, and LRFS. In the multivariate comparison, AMACR overexpression still remained prognostically independent to portend worse DSS (P = 0.006, hazard ratio = 2.129), DMFS (P = 0.001, hazard ratio = 2.795), and LRFS (P = 0.041, hazard ratio = 2.009), together with advanced American Joint of Cancer Committee (AJCC) stages III-IV. Compared with non-neoplastic cells, both HONE1 and TW01 NPC cells demonstrated markedly increased AMACR expression. AMACR overexpression was identified as an important prognosticator and a potential therapeutic target in the future.
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Affiliation(s)
- Ying-En Lee
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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15
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Xiang L, Wang Y, Xu BQ, Wu JB, Xia YF. Preliminary results of a phase I/II study of simultaneous boost irradiation radiotherapy for locally advanced nasopharyngeal carcinoma. Asian Pac J Cancer Prev 2014; 14:7569-76. [PMID: 24460335 DOI: 10.7314/apjcp.2013.14.12.7569] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The purpose of this article is to present preliminary results of simultaneous boost irradiation radiotherapy for locally advanced nasopharyngeal carcinoma (NPC). METHODS Fifty-eight patients who underwent simultaneous boost irradiation radiotherapy for NPC in Cancer Center of Sun Yat-sen University between September 2004 and December 2009 were eligible. Acute and late toxicities were scored weekly according to the Radiation Therapy Oncology Group (RTOG) acute and late radiation morbidity scoring schemes. An especial focus was on evidence of post-radiation brain injury. Also quality of life was analysed according to the EORTC (European Organisation for Research and Treatment of Cancer) recommendations. Discrete variables were compared by ?2 test. The Kaplan-Meier method was used to calculate the survival rates and generate survival curves. RESULTS A total of 58 patients with a mean follow-up time of 36 months completed clinical trials.Fifty- seven patients (98.3) achieved complete remission in the primary sites and cervical lymph nodes, with only one patient (1.7%) showing partial remission.The most frequently observed acute toxicities during the concurrent chemoradiotherapy were mucositis and leucopenia. Four patients (6.9%) had RTOG grade 3 mucositis, whereas four patients (6.9%) had grade 3 leucopenia. No patient had grade 4 acute toxicity. Three (5.17%) of the patients exhibited injury to the brain on routine MRI examination, with a median observation of 32 months (range, 25-42months). All of them were RTOG grade 0. The 3-year overall, regional-free and distant metastasis-free survival rates were 85%, 94% and 91%, respectively. CONCLUSION Simultaneous boost irradiation radiotherapy is feasible in patients with locally advanced nasopharyngeal carcinoma. The results showed excellent local control and overall survival, with no significant increase the incidence of radiation brain injury or the extent of damage. A larger population of patients and a longer follow-up period are needed to evaluate ultimate tumor control and late toxicity.
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Affiliation(s)
- Li Xiang
- State Key Laboratory of Oncology in South China, Department of Radiation Therapy, Cancer Centre, Sun Yat-Sen University, Guangzhou, Guangdong, China E-mail : ,
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16
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Overexpression of stathmin 1 confers an independent prognostic indicator in nasopharyngeal carcinoma. Tumour Biol 2013; 35:2619-29. [PMID: 24218338 DOI: 10.1007/s13277-013-1345-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 10/17/2013] [Indexed: 12/31/2022] Open
Abstract
Data mining on public domain identified that stathmin 1 (STMN1) transcript was significantly higher expressed in nasopharyngeal carcinoma (NPC). Also known as the oncoprotein 18, STMN1 performs an important function in regulating rapid microtubule remodeling of the cytoskeleton in response to the cellular conditions. Immunoexpression of STMN1 was retrospectively assessed in biopsies of 124 consecutive NPC patients without initial distant metastasis and treated with consistent guidelines. The outcome was correlated with clinicopathological features and patient survivals. Results indicated that high STMN1 expressions (50 %) were correlated with advanced age (p = 0.027), higher T stage (p = 0.003), and overall clinical stage (p = 0.006) by the 7th American Joint Committee of Cancer Staging. In multivariate analyses, high STMN1 expression emerged as an independent prognosticator for worse disease-specific survival (p = 0.001), distal metastasis-free survival (p = 0.003), and local recurrence-free survival (p = 0.006). Exogenous expression of E2F transcription factor 1 (E2F1) or/and its dimeric partner, transcription factor Dp-1 (TFDP1), notably induced the STMN1 protein level in a NPC-derived cell line, TW01. Accordingly, high STMN1 protein level is commonly associated with adverse prognosticators and confers tumor aggressiveness in patients with NPC, and its upregulation might be attributed to E2F1 and/or TFDP1 transactivation.
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17
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Ma LJ, Lee SW, Lin LC, Chen TJ, Chang IW, Hsu HP, Chang KY, Huang HY, Li CF. Fibronectin overexpression is associated with latent membrane protein 1 expression and has independent prognostic value for nasopharyngeal carcinoma. Tumour Biol 2013; 35:1703-12. [PMID: 24081675 DOI: 10.1007/s13277-013-1235-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 09/17/2013] [Indexed: 12/20/2022] Open
Abstract
Despite recent improvements in the diagnosis and treatment, the final outcomes in patients with nasopharyngeal carcinomas (NPC) still remain suboptimal. Through data mining from published transcriptomic database with further bioinformatic validation, fibronectin (FN1) was identified as a differentially upregulated gene in NPC tissues, which implicates the transition from epithelial to mesenchymal phenotype (EMT) and promotes metastasis. Given the roles of fibronectin in risk stratification and in the frontline therapeutics of common carcinomas, such as renal cell cancer, we explored fibronectin immunoexpression status and its associations with clinicopathological variables and survival in a well-defined cohort of NPC patients. Fibronectin immunohistochemistry was retrospectively performed and analyzed using H-score for 124 biopsy specimens from NPC patients who received standard treatment without distant metastasis at initial diagnosis. Those cases with H-score higher than the median value were regarded as fibronectin overexpression. The findings were correlated with clinicopathological variables, EBV latent membrane protein 1 (LMP1) expression, disease-specific survival (DSS), distant metastasis-free survival (DMFS), and local recurrence-free survival (LRFS). Fibronectin overexpression was significantly associated with American Joint Committee on Cancer (AJCC) stages III-IV (p = 0.019) and LMP1 expression (p = 0.004), and univariately predictive of adverse outcomes for DSS, DMFS, and LRFS (all p < 0.0001). In the multivariate comparison, fibronectin overexpression still remained prognostically independent to portend worse DSS (p < 0.01, hazard ratio = 5.958), DMFS (p < 0.01, hazard ratio = 5.728), and LRFS (p < 0.01, hazard ratio = 5.411) together with a vanced AJCC stages III-IV. Fibronectin is upregulated in a subset of NPCs, and its increased immunoexpression significantly correlated with advanced features, justifying the potentiality of fibronectin as a theragnostic biomaker of NPC.
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Affiliation(s)
- Li-Jung Ma
- Department of Pathology, Chi-Mei Foundation Medical Center, Tainan, Taiwan
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18
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TOP2A overexpression as a poor prognostic factor in patients with nasopharyngeal carcinoma. Tumour Biol 2013; 35:179-87. [PMID: 23897556 DOI: 10.1007/s13277-013-1022-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 07/12/2013] [Indexed: 01/18/2023] Open
Abstract
Despite the advances in diagnostic imaging and treatment modalities, the risk stratification and final outcomes in patients with nasopharyngeal carcinomas (NPC) still remain suboptimal. Through data mining from published transcriptomic database, topoisomerase IIα (TOP2A) was first identified as a differentially upregulated gene in NPC tissues, which implicates cell division via selective cleavage, rearrangement, and re-ligation of DNA strands. Given the roles of TOP2A in prognostication and in the frontline therapeutic regimen of common carcinomas, such as breast cancer, we explored TOP2A immunoexpression status and its associations with clinicopathological variables and survival in a well-defined cohort of NPC patients. TOP2A immunohistochemistry was retrospectively performed and analyzed using H-score method for biopsy specimens from 124 NPC patients who received standard treatment without distant metastasis at initial diagnosis. Those cases with H-score larger than the median value were construed as featuring TOP2A overexpression. The findings were correlated with the clinicopathological variables, disease-specific survival (DSS) and distant metastasis-free survival (DMFS). TOP2A overexpression was significantly associated with American Joint of Cancer Committee (AJCC) stages III-IV (p = 0.019) and univariately predictive of adverse outcomes for DSS (p = 0.0078) and DMFS (p = 0.0003). In the multivariate comparison, TOP2A overexpression remained prognostically independent to portend worse DSS (p = 0.047, hazard ratio = 1.732) and DMFS (p = 0.003, hazard ratio = 2.569), together with advanced AJCC stages III-IV. TOP2A expression is upregulated in a subset of NPCs and its increased immunoexpression significantly correlated with advanced stages and tumor aggressiveness, justifying the potentiality of TOP2A as a prognostic biomarker and a novel therapeutic target of NPC.
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Lee SW, Lin CY, Tian YF, Sun DP, Lin LC, Chen LT, Hsing CH, Huang CT, Hsu HP, Huang HY, Wu LC, Li CF, Shiue YL. Overexpression of CDC28 protein kinase regulatory subunit 1B confers an independent prognostic factor in nasopharyngeal carcinoma. APMIS 2013; 122:206-14. [PMID: 23879533 DOI: 10.1111/apm.12136] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 05/15/2013] [Indexed: 12/28/2022]
Abstract
Data mining on public domain identified that CDC28 protein kinase regulatory subunit 1B (CKS1B) transcript was highly expressed in nasopharyngeal carcinoma (NPC). The expression of CKS1B protein and its clinicopathological associations in patients with NPC were further evaluated. Immunoexpression of CKS1B was retrospectively assessed in biopsies of 124 consecutive NPC patients without initial distant metastasis and treated with consistent guidelines. The correlations between CKS1B immunoexpression levels and clinicopathological features, as well as patient survivals, were analyzed. High CKS1B expression (49.2%) was correlated with the 7th American Joint Committee on Cancer (AJCC) stage (p = 0.014). In multivariate analyses, high CKS1B expression emerged as an independent prognostic factor for worse disease-specific survival (p < 0.001), metastasis-free survival (p < 0.001), and local recurrence-free survival (p = 0.001). High expression of CKS1B is common and associated with adverse prognostic factors and might confer tumor aggressiveness through dysregulation of the cyclin-dependent protein kinase (intrinsic regulatory activity) during cell cycle progression.
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Affiliation(s)
- Sung-Wei Lee
- Department of Radiation Oncology, Chi-Mei Medical Center, Tainan, Taiwan
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20
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Lee SW, Chen TJ, Lin LC, Li CF, Chen LT, Hsing CH, Hsu HP, Tsai CJ, Huang HY, Shiue YL. Overexpression of thymidylate synthetase confers an independent prognostic indicator in nasopharyngeal carcinoma. Exp Mol Pathol 2013; 95:83-90. [PMID: 23726796 DOI: 10.1016/j.yexmp.2013.05.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 05/21/2013] [Accepted: 05/21/2013] [Indexed: 01/18/2023]
Abstract
Data mining on public domain identified that thymidylate synthetase (TYMS) and dihydrofolate reductase (DHFR) transcripts were significantly higher expressed in nasopharyngeal carcinoma (NPC). In the folate pathway, TYMS catalyzes the methylation of deoxyuridylate to deoxythymidylate using 5,10-methylenetetrahydrofolate [5,10-CH2=THF, derived from tetrahydrofolate (THF)], as a cofactor. This function maintains the thymidine-5-prime monophosphate pool critical for DNA replication and repair and, THF is generated from dihydrofolate (DHF) through the activity of DHFR. Immunoexpression of TYMS and DHFR were retrospectively assessed in biopsies of 124 consecutive NPC patients without initial distant metastasis and treated with consistent guidelines. The outcome was correlated with clinicopathological features and patient survivals. Results indicated that high TYMS (50%) expressions were correlated with primary tumor (p=0.008) and AJCC stage (p=0.006), and high DHFR (50%) expression were correlated with nodal status (p=0.039) and AJCC stage (p=0.029) (7th American Joint Committee on Cancer), respectively. In multivariate analyses, high TYMS expression emerged as an independent prognosticator for worse disease-specific survival (p<0.001), distal metastasis-free survival (p=0.002) and local recurrence-free survival (p<0.001), along with AJCC stage. Therefore, TYMS expression is common and associated with adverse prognosticators and might confer tumor aggressiveness through dysregulation of the nucleotide biosynthetic process.
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Affiliation(s)
- Sung-Wei Lee
- Department of Radiation Oncology, Chi-Mei Medical Center, Liouying, Tainan, Taiwan
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21
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Kim JW, Cho JH, Keum KC, Kim JH, Kim GE, Lee JY, Kim SK, Lee CG. IMRT with Simultaneous Integrated Boost and Concurrent Chemotherapy for Nasopharyngeal Cancer: Plan Evaluation and Treatment Outcome. Jpn J Clin Oncol 2012; 42:1152-60. [DOI: 10.1093/jjco/hys169] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Chen AM, Yang CC, Marsano J, Liu T, Purdy JA. Intensity-modulated radiotherapy for nasopharyngeal carcinoma: improvement of the therapeutic ratio with helical tomotherapy vs segmental multileaf collimator-based techniques. Br J Radiol 2012; 85:e537-43. [PMID: 22253350 PMCID: PMC3587075 DOI: 10.1259/bjr/23807619] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 05/04/2011] [Accepted: 05/09/2010] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The aim of the study was to compare differences in dosimetric, clinical and quality-of-life end points among patients treated with helical tomotherapy (HT) and segmental multileaf collimator (SMLC)-based intensity-modulated radiotherapy (IMRT) for nasopharyngeal carcinoma. METHODS From June 2005 to August 2009, 30 consecutive patients were treated with IMRT for nasopharyngeal carcinoma to a dose of 70 Gy. 14 patients (47%) were treated using HT and 16 (53%) were treated using SMLC-based IMRT. 28 patients (93%) received concurrent chemotherapy. The patients were evenly balanced between the two radiotherapy groups with respect to clinical and pathological characteristics. Median follow-up was 30 months (range, 6-62 months). RESULTS The 2-year estimates of overall survival, local-regional control and progression-free survival were 81%, 87% and 82%, respectively. There were no significant differences in any of these end points with respect to IMRT technique (p>0.05 for all). Dosimetric analysis revealed that patients treated by HT had significantly improved salivary sparing with respect to mean dose (27.3 vs 34.1 Gy, p=0.03) and volume receiving greater than or equal to 30 Gy (31.7% vs 47.3%, p=0.01) to the contralateral (spared) parotid gland. The incidence of Grade 3+ late xerostomia was 13 and 7% among patients treated with SMLC-based IMRT and HT, respectively (p=0.62). The corresponding proportion of patients who subjectively reported "too little" or "no" saliva at final follow-up was 38% and 7%, respectively (p=0.04). CONCLUSION The superior dosimetric outcome observed with HT appeared to translate into moderately improved clinical outcomes with respect to salivary sparing. Prospective trials are needed to validate this gain in the therapeutic ratio.
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Affiliation(s)
- A M Chen
- Department of Radiation Oncology, University of California Davis Cancer Center, Sacramento, CA 95817, USA.
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Chen YH, Wu LC, Wu WR, Lin HJ, Lee SW, Lin CY, Chang SL, Chow NH, Huang HY, Li CF, Hsu HP, Shiue YL. Loss of epithelial membrane protein-2 expression confers an independent prognosticator in nasopharyngeal carcinoma: a cohort study. BMJ Open 2012; 2:e000900. [PMID: 22492389 PMCID: PMC3323806 DOI: 10.1136/bmjopen-2012-000900] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE To evaluate the expression of epithelial membrane protein-2 (EMP2) protein and its clinicopathological associations in patients with nasopharyngeal carcinoma. DESIGN Retrospective population-based cohort study. SETTING This study was based on a biobank in Chi-Mei Medical Center (Tainan, Taiwan) from 1993 to 2002. PARTICIPANTS Biopsies of 124 consecutive nasopharyngeal carcinoma patients without initial distant metastasis and treated with consistent guidelines were assessed. Immunoexpressions of EMP2 were analysed and the outcomes were correlated with clinicopathological features and patient survivals. PRIMARY AND SECONDARY OUTCOME MEASURES Immunoexpressions of EMP2 were analyzed and the outcomes were correlated with clinicopathological features and patient survivals. RESULTS Loss of EMP2 expression (49.2%) was correlated with advanced primary tumour (p=0.044), nodal status (p=0.045) and the 7th American Joint Committee on Cancer stage (p=0.027). In multivariate analyses, loss of EMP2 expression emerged as an independent prognosticator for worse disease-specific survival (DSS; p=0.015) and local recurrence-free survival (LRFS; p=0.030), along with the American Joint Committee on Cancer stages III-IV (p=0.034, DSS; p=0.023, LRFS). CONCLUSIONS Loss of EMP2 expression is common and associated with adverse prognosticators and might confer tumour aggressiveness through hampering its interaction with specific membrane protein(s) and hence the downstream signal transduction pathway(s).
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Affiliation(s)
- Yi-Hsien Chen
- Department of Emergency Medicine, Chi-Mei Medical Center, Tainan, Taiwan
| | - Li-Ching Wu
- Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan
| | - Wen-Ren Wu
- Institute of Biomedical Science, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Hung-Jung Lin
- Department of Emergency Medicine, Chi-Mei Medical Center, Tainan, Taiwan
| | - Sung-Wei Lee
- Department of Radiation Oncology, Chi-Mei Medical Center, Liouying, Tainan, Taiwan
| | - Ching-Yih Lin
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chi-Mei Medical Center, Tainan, Taiwan
| | - Shih-Lun Chang
- Department of Otolaryngology, Chi-Mei Medical Center, Tainan, Taiwan
| | - Nan-Haw Chow
- Department of Pathology, National Cheng Kung University Hospital, Tainan, Taiwan
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Hsuan-Ying Huang
- Department of Pathology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, College of Medicine, Chang Gung University, Kaohsiung, Taiwan
| | - Chien-Feng Li
- Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan
- Institute of Biomedical Science, National Sun Yat-sen University, Kaohsiung, Taiwan
- National Institute of Cancer Research, National Health Heath Research Institute, Tainan, Taiwan
- Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan
| | - Han-Ping Hsu
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Science, National Sun Yat-sen University, Kaohsiung, Taiwan
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Lee AWM, Tung SY, Chua DTT, Ngan RKC, Chappell R, Tung R, Siu L, Ng WT, Sze WK, Au GKH, Law SCK, O'Sullivan B, Yau TK, Leung TW, Au JSK, Sze WM, Choi CW, Fung KK, Lau JT, Lau WH. Randomized trial of radiotherapy plus concurrent-adjuvant chemotherapy vs radiotherapy alone for regionally advanced nasopharyngeal carcinoma. J Natl Cancer Inst 2010; 102:1188-98. [PMID: 20634482 DOI: 10.1093/jnci/djq258] [Citation(s) in RCA: 248] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Current practice of adding concurrent-adjuvant chemotherapy to radiotherapy (CRT) for treating advanced nasopharyngeal carcinoma is based on the Intergroup-0099 Study published in 1998. However, the outcome for the radiotherapy-alone (RT) group in that trial was substantially poorer than those in other trials, and there were no data on late toxicities. Verification of the long-term therapeutic index of this regimen is needed. METHODS Patients with nonkeratinizing nasopharyngeal carcinoma staged T1-4N2-3M0 were randomly assigned to RT (176 patients) or to CRT (172 patients) using cisplatin (100 mg/m(2)) every 3 weeks for three cycles in concurrence with radiotherapy, followed by cisplatin (80 mg/m(2)) plus fluorouracil (1000 mg per m(2) per day for 4 days) every 4 weeks for three cycles. Primary endpoints included overall failure-free rate (FFR) (the time to first failure at any site) and progression-free survival. Secondary endpoints included overall survival, locoregional FFR, distant FFR, and acute and late toxicity rates. All statistical tests were two-sided. RESULTS The two treatment groups were well balanced in all patient characteristics, tumor factors, and radiotherapy parameters. Adding chemotherapy statistically significantly improved the 5-year FFR (CRT vs RT: 67% vs 55%; P = .014) and 5-year progression-free survival (CRT vs RT: 62% vs 53%; P = .035). Cumulative incidence of acute toxicity increased with chemotherapy by 30% (CRT vs RT: 83% vs 53%; P < .001), but the 5-year late toxicity rate did not increase statistically significantly (CRT vs RT: 30% vs 24%; P = .30). Deaths because of disease progression were reduced statistically significantly by 14% (CRT vs RT: 38% vs 24%; P = .008), but 5-year overall survival was similar (CRT vs RT: 68% vs 64%; P = .22; hazard ratio of CRT = 0.81, 95% confidence interval = 0.58 to 1.13) because deaths due to toxicity or incidental causes increased by 7% (CRT vs RT: 1.7% vs 0, and 8.1% vs 3.4%, respectively; P = .015). CONCLUSIONS Adding concurrent-adjuvant chemotherapy statistically significantly reduced failure and cancer-specific deaths when compared with radiotherapy alone. Although there was no statistically significant increase in major late toxicity, increase in noncancer deaths narrowed the resultant gain in overall survival.
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Affiliation(s)
- Anne W M Lee
- Department of Clinical Oncology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong, China.
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Chen AM, Lee NY, Yang CC, Liu T, Narayan S, Vijayakumar S, Purdy JA. Comparison of Intensity-Modulated Radiotherapy Using Helical Tomotherapy and Segmental Multileaf Collimator-based Techniques for Nasopharyngeal Carcinoma: Dosimetric Analysis Incorporating Quality Assurance Guidelines from RTOG 0225. Technol Cancer Res Treat 2010; 9:291-298. [DOI: 10.1177/153303461000900308] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
Intensity-modulated radiotherapy (IMRT) treatment plans generated by segmental multileaf collimator (SMLC) and helical tomotherapy (HT) techniques for patients with nasopharyngeal carcinoma were compared using standardized criteria proposed by Radiation Therapy Oncology Group (RTOG) protocol 0225. The goal was to deliver a prescribed dose of 70 Gy to at least 95% of the planning target volume (PTV) encompassing gross tumor, and 59.4 Gy and 50.4 Gy, respectively, to areas at high and low risk for microscopic disease, over 33 treatments while respecting constraints to organs at risk (OAR). HT-IMRT significantly reduced dose to the contralateral parotid gland and improved dose homogeneity to the PTVs. Mean doses to the inner and middle ears were also reduced by 18% and 24%, respectively, on the ipsilateral side, and 24%, and 35%, respectively, on the contralateral side using HT-IMRT compared to SMLC-IMRT. Additionally, HT-IMRT reduced mean doses to brainstem (p = 0.02), larynx (p = 0.03), and oral cavity (p = 0.03). These findings suggest that HT-IMRT may be of improve the therapeutic ratio in the radiotherapeutic treatment of nasopharyngeal carcinoma.
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Affiliation(s)
- Allen M. Chen
- Departments of Radiation Oncology, University of California Davis Cancer Center, 4501 X Street, Suite G140, Sacramento, CA
| | - Nancy Y. Lee
- Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY
| | | | - Tianxiao Liu
- Departments of Radiation Oncology, University of California Davis Cancer Center, 4501 X Street, Suite G140, Sacramento, CA
| | - Samir Narayan
- Departments of Radiation Oncology, University of California Davis Cancer Center, 4501 X Street, Suite G140, Sacramento, CA
| | | | - James A. Purdy
- Departments of Radiation Oncology, University of California Davis Cancer Center, 4501 X Street, Suite G140, Sacramento, CA
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Chang JH, Gosling T, Larsen J, Powell S, Scanlon R, Chander S. Prophylactic gastrostomy tubes for patients receiving radical radiotherapy for head and neck cancers: a retrospective review. J Med Imaging Radiat Oncol 2010; 53:494-9. [PMID: 19788486 DOI: 10.1111/j.1754-9485.2009.02103.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Patients undergoing radical radiotherapy for head and neck cancers often experience significant complications. We sought to evaluate the impact of prophylactic gastrostomy tubes (PGTs) among these patients on four easily evaluable adverse outcomes, namely, absolute weight loss, percentage weight loss, admissions for nutritional reasons and treatment interruptions. A retrospective review was carried out on patients undergoing radical radiotherapy for primary head and neck cancers from September 1999 to October 2005 at the Wellington Blood and Cancer Centre (n = 71). PGTs were placed in 7 (10%) patients. Patients with PGTs were compared with the patients without PGTs (the control group) by univariate and multivariate analyses. By univariate analysis, there was no significant difference in absolute or percentage weight loss between those with PGTs and the control group. By multivariate analysis, those with PGTs lost 5.2% (P = 0.016) less weight than the control group. There were no significant differences between the two groups with regard to admissions for nutritional reasons or treatment interruptions. The use of PGTs can reduce weight loss in patients undergoing radical radiotherapy for head and neck cancers, and its use should be further evaluated in future studies.
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Affiliation(s)
- J H Chang
- Radiation Oncology Centre, Austin Health, Melbourne, Victoria, Australia
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Tham IWK, Hee SW, Yeo RMC, Salleh PB, Lee J, Tan TWK, Fong KW, Chua ET, Wee JTS. Treatment of Nasopharyngeal Carcinoma Using Intensity-Modulated Radiotherapy—The National Cancer Centre Singapore Experience. Int J Radiat Oncol Biol Phys 2009; 75:1481-6. [DOI: 10.1016/j.ijrobp.2009.01.018] [Citation(s) in RCA: 198] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2008] [Revised: 12/13/2008] [Accepted: 01/08/2009] [Indexed: 11/28/2022]
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Prospective study of sensorineural hearing loss following radiotherapy for nasopharyngeal carcinoma. The Journal of Laryngology & Otology 2009; 124:32-6. [DOI: 10.1017/s0022215109991435] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractObjectives:To investigate the severity and incidence of sensorineural hearing loss in patients with nasopharyngeal carcinoma treated with radiotherapy.Methods:Forty-two patients with nasopharyngeal carcinoma were treated with conventional radiotherapy. Audiological testing was performed to compare patients' hearing before and at varying stages after radiotherapy.Results:At one month post-radiation, a significant hearing threshold increase was seen only for high frequencies. At 12, 24 and 60 months post-radiation, significant threshold increases were observed at speech frequencies (4.0 and 8.0 kHz), compared with pre-radiation data. The mean values of wave I, III and V latencies and of the I–V interpeak latency intervals were not significantly altered at one month post-radiation, but were significantly prolonged at 12, 24 and 60 months post-radiation, compared with pre-radiation data.Conclusion:In patients with nasopharyngeal carcinoma treated with radiotherapy, the severity and incidence of radiation-induced sensorineural hearing loss increased with time, especially at high frequencies. This hearing impairment may be due to changes in the cochlea and/or the retrocochlear auditory pathway.
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Nasopharyngectomy: Does the approach to the nasopharynx influence survival? Otolaryngol Head Neck Surg 2008; 139:40-6. [PMID: 18585559 DOI: 10.1016/j.otohns.2008.04.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2008] [Revised: 04/02/2008] [Accepted: 04/14/2008] [Indexed: 11/21/2022]
Abstract
Objective To investigate whether the approach used to the nasopharynx to perform a salvage nasopharyngectomy for recurrent or residual nasopharyngeal carcinoma influences survival. Study Design A retrospective case series. Subjects and Methods Eighty patients underwent a nasopharyngectomy via a transpalatal, maxillary swing, or midfacial degloving approach. Local progression-free, locoregional progression-free, and overall survival rates were calculated for each approach. Results For the whole group (N = 80), there were no significant differences in the survival rates between the three approaches. For the subgroup of patients with recurrent T1 and T2 tumors (n = 68), the local progression-free and locoregional progression-free survival rates were significantly better when a maxillary swing approach was used than when a midfacial degloving approach was used. Conclusion The maxillary swing approach is associated with significantly better survival rates than the midfacial degloving approach when used to perform a salvage nasopharyngectomy for residual or recurrent T1 and T2 nasopharyngeal carcinoma.
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Lu JJ, Kong L, Shakespeare TP, Loh KS, Zhang Q, Luke Tan KS, Lee KM. Prospective phase II trial of concomitant boost radiotherapy for stage II nasopharyngeal carcinoma. Oral Oncol 2008; 44:703-9. [DOI: 10.1016/j.oraloncology.2007.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2007] [Revised: 09/12/2007] [Accepted: 09/12/2007] [Indexed: 10/22/2022]
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Koom WS, Kim TH, Shin KH, Pyo HR, Kim JY, Kim DY, Yoon M, Park SY, Lee DH, Ryu JS, Jung YS, Lee SH, Cho KH. SMART (Simultaneous Modulated Accelerated RadioTherapy) for locally advanced nasopharyngeal carcinomas. Head Neck 2008; 30:159-69. [PMID: 17764088 DOI: 10.1002/hed.20667] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Concurrent chemoradiotherapy is commonly used for locally advanced nasopharyngeal carcinoma (NPC). We retrospectively analyzed the clinical outcomes of simultaneous modulated accelerated radiotherapy (SMART) with concurrent chemotherapy. METHODS Between January 2003 and May 2005, 24 patients with stage IIB to IVB NPC underwent SMART encompassing 3 targets: gross tumor volume (GTV), high-risk subclinical disease (CTV1), and low-risk subclinical disease (CTV2). Daily fractions of 2.4, 2.15, and 1.9 Gy were delivered to GTV, CTV1, and CTV2 to a total dose of 64.8, 58.05, and 51.3 Gy in 27 fractions over 5.5 weeks, respectively. Fifteen patients received concurrent cisplatin (DDP group), and 9 received 5-fluorouracil plus cisplatin (FP group). RESULTS With a median follow-up of 26 months (range, 17-45 months), 3-year overall and local-, regional-, and distant-progression-free survivals were 96% and 93%, 87%, and 88%, respectively. Grade 3 acute mucositis and pharyngitis were observed in 16 (67%) and 14 (59%) patients, respectively. Severe acute mucositis (100% vs 47%) and pharyngitis (100% vs 34%) were more frequently observed in the FP group than the DDP group (p < .01). CONCLUSIONS Despite short follow-up with a small number of patients, our preliminary results demonstrated encouraging local-regional control and survival at the cost of modest increase in treatment related toxicities. The total dose and fractionation scheme of SMART used in our study is feasible with no life-threatening or fatal complications. However, the administration of fluorouracil in addition to cisplatin during SMART was associated with increased acute and late toxicities, and it should be administered with caution.
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Affiliation(s)
- Woong Sub Koom
- Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, South Korea
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Lee AWM, Tung SY, Chan ATC, Chappell R, Fu YT, Lu TX, Tan T, Chua DTT, O'sullivan B, Xu SL, Pang ESY, Sze WM, Leung TW, Kwan WH, Chan PTM, Liu XF, Tan EH, Sham JST, Siu L, Lau WH. Preliminary results of a randomized study (NPC-9902 Trial) on therapeutic gain by concurrent chemotherapy and/or accelerated fractionation for locally advanced nasopharyngeal carcinoma. Int J Radiat Oncol Biol Phys 2006; 66:142-51. [PMID: 16904519 DOI: 10.1016/j.ijrobp.2006.03.054] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 03/14/2006] [Accepted: 03/14/2006] [Indexed: 01/10/2023]
Abstract
PURPOSE To compare the benefit achieved by concurrent chemoradiotherapy (CRT) and/or accelerated fractionation (AF) vs. radiotherapy (RT) alone with conventional fractionation (CF) for patients with T3-4N0-1M0 nasopharyngeal carcinoma (NPC). METHODS AND MATERIALS All patients were irradiated with the same RT technique to > or =66 Gy at 2 Gy per fraction, conventional five fractions/week in the CF and CF+C (chemotherapy) arms, and accelerated six fractions/week in the AF and AF+C arms. The CF+C and AF+C patients were given the Intergroup 0099 regimen (concurrent cisplatin plus adjuvant cisplatin and 5-fluorouracil). RESULTS Between 1999 and April 2004, 189 patients were randomly assigned; the trial was terminated early because of slow accrual. The median follow-up was 2.9 years. When compared with the CF arm, significant improvement in failure-free survival (FFS) was achieved by the AF+C arm (94% vs. 70% at 3 years, p = 0.008), but both the AF arm and the CF+C arm were insignificant (p > or = 0.38). Multivariate analyses showed that CRT was a significant factor: hazard ratio (HR) = 0.52 (0.28-0.97), AF per se was insignificant: HR = 0.68 (0.37-1.25); the interaction of CRT by AF was strongly significant (p = 0.006). Both CRT arms had significant increase in acute toxicities (p < 0.005), and the AF+C arm also incurred borderline increase in late toxicities (34% vs. 14% at 3 years, p = 0.05). CONCLUSIONS Preliminary results suggest that concurrent chemoradiotherapy with accelerated fractionation could significantly improve tumor control when compared with conventional RT alone; further confirmation of therapeutic ratio is warranted.
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Affiliation(s)
- Anne W M Lee
- Department of Clinical Oncology, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China.
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Chen WC, Jackson A, Budnick AS, Pfister DG, Kraus DH, Hunt MA, Stambuk H, Levegrun S, Wolden SL. Sensorineural hearing loss in combined modality treatment of nasopharyngeal carcinoma. Cancer 2006; 106:820-9. [PMID: 16421885 DOI: 10.1002/cncr.21683] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Combined modality therapy has become the standard of care for nasopharyngeal carcinoma, yet the combined ototoxic effects of radiation and cisplatin are poorly understood. The incidence and severity of sensorineural hearing loss (SNHL) with combined modality therapy was evaluated and the dose-response relation between radiation and hearing loss was investigated. METHODS Patients with newly diagnosed AJCC Stage II-IVB nasopharynx carcinoma treated from 1994-2003 were identified. The records of 44 ears in 22 patients who received a preirradiation pure tone audiogram and followup audiograms 12+ months postirradiation were included in the analysis. All patients were treated with conformal radiotherapy to 70 Gy and received platinum-based chemotherapy similar to the Intergroup 0099 trial. Composite cochlear dose distributions were calculated. Ototoxicity was measured using intrasubject audiogram comparisons and SNHL was defined as per the American Speech and Hearing Association guidelines, with standard range of speech between 2000-4000 Hz. SNHL was analyzed using Fisher exact test and linear and logistic regression models. RESULTS PATIENT CHARACTERISTICS median age, 45; 27% Asian; 68% male; 64% WHO III. Median audiologic followup was 29 months (range, 12-76 mos). Mean cochlear dose (Dmean) ranged from 28.4-70.0 Gy (median, 48.5 Gy). SNHL was detected in 25 of the 44 ears (57%) studied. There was an increased risk of SNHL for ears receiving Dmean > 48 Gy compared with those receiving < or = 48 Gy at all frequencies within the range of speech (P = 0.04). Using univariate logistic regression analysis, Dmean to the cochlea, cycles of cisplatin, and time postradiotherapy were independently significant factors in determining the incidence of SNHL (P = 0.02, P = 0.03, and P = 0.04, respectively). In univariate and multivariate linear regression analysis, Dmean was statistically significant at all frequencies in affecting degree of SNHL, whereas the significance of cisplatin and time was variable. CONCLUSIONS There was a significant increase in risk of SNHL among patients receiving > 48 Gy, suggesting a threshold in cochlear radiation dose-response in the setting of combined modality therapy. This dose should serve as a Dmean constraint maximum for intensity-modulated radiotherapy treatment of nasopharynx carcinoma.
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Affiliation(s)
- William C Chen
- Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
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Wolden SL, Chen WC, Pfister DG, Kraus DH, Berry SL, Zelefsky MJ. Intensity-modulated radiation therapy (IMRT) for nasopharynx cancer: Update of the Memorial Sloan-Kettering experience. Int J Radiat Oncol Biol Phys 2006; 64:57-62. [PMID: 15936155 DOI: 10.1016/j.ijrobp.2005.03.057] [Citation(s) in RCA: 354] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2005] [Revised: 03/24/2005] [Accepted: 03/24/2005] [Indexed: 11/27/2022]
Abstract
PURPOSE We previously demonstrated that intensity-modulated radiation therapy (IMRT) significantly improves radiation dose distribution over three-dimensional planning for nasopharynx cancer and reported positive early clinical results. We now evaluate whether IMRT has resulted in improved outcomes for a larger cohort of patients with longer follow-up. METHODS AND MATERIALS Since 1998, all 74 patients with newly diagnosed, nonmetastatic nasopharynx cancer were treated with IMRT using accelerated fractionation to 70 Gy; 59 received a hyperfractionated concomitant boost, and more recently 15 received once-daily treatment with dose painting. With the exception of Stage I disease (n = 5) and patient preference (n = 1), 69 patients received concurrent and adjuvant platinum-based chemotherapy similar to that in the Intergroup 0099 trial. RESULTS PATIENT CHARACTERISTICS median age 45; 32% Asian; 72% male; 65% World Health Organization III; 6% Stage I, 16% Stage II, 30% Stage III, 47% Stage IV. Median follow-up is 35 months. The 3-year actuarial rate of local control is 91%, and regional control is 93%; freedom from distant metastases, progression-free survival, and overall survival at 3 years are 78%, 67%, and 83%, respectively. There was 100% local control for Stage T1/T2 disease, compared to 83% for T3/T4 disease (p = 0.01). Six patients failed at the primary site, with median time to local tumor progression 16 months; 5 were exclusively within the 70 Gy volume, and 1 was both within and outside the target volume. There is a trend for improved local control with IMRT when compared to local control of 79% for 35 patients treated before 1998 with three-dimensional planning and chemotherapy (p = 0.11). Six months posttherapy, 21%, 13%, 15%, and 0% of patients with follow-up audiograms (n = 24 patients) had Grade 1, 2, 3, and 4 sensorineural hearing loss, respectively. For patients with >1 year follow-up (n = 59), rates of long-term xerostomia were as follows: 26% none, 42% Grade 1, 32% Grade 2, and zero Grade 3. CONCLUSIONS The pattern of primary site failure within the target volume suggests locally advanced T stage disease may require a higher biologic dose to gross tumor. Rates of severe (Grade 3-4) ototoxicity and xerostomia are low with IMRT as a result of normal-tissue protection. Distant metastases are now the dominant form of failure, emphasizing the need for improved systemic therapy.
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Affiliation(s)
- Suzanne L Wolden
- Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
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Lee AWM, Yau TK, Wong DHM, Chan EWK, Yeung RMW, Ng WT, Tong M, Soong IS, Sze WM. Treatment of stage IV(A-B) nasopharyngeal carcinoma by induction-concurrent chemoradiotherapy and accelerated fractionation. Int J Radiat Oncol Biol Phys 2005; 63:1331-8. [PMID: 16169677 DOI: 10.1016/j.ijrobp.2005.05.061] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2005] [Revised: 05/26/2005] [Accepted: 05/31/2005] [Indexed: 11/19/2022]
Abstract
PURPOSE To explore a more effective strategy for treating nasopharyngeal carcinoma with extensive locoregional disease. METHODS AND MATERIALS Between October 1998 and January 2003, 49 patients with Stage IV(A-B) disease infiltrating or abutting neurologic structures were treated with induction-concurrent chemotherapy and accelerated radiotherapy (RT). A combination of cisplatin and 5-fluorouracil was used in the induction phase and single-agent cisplatin in the concurrent phase. All patients were irradiated with conformal techniques at 2 Gy/fraction, six daily fractions weekly, to a total dose of 70 Gy. RESULTS Although 92% of patients had one or more acute toxicities Grade 3 or worse, 96% completed the whole course of RT, and 92% had five or more cycles of chemotherapy. The great majority of toxicities were uneventful, but 1 patient died of neutropenic sepsis. With a median follow-up of 3.1 years, 20 patients had failure at one or more sites and 15 patients died. The 3-year locoregional and distant failure-free rate was 77% and 75%, respectively, and the overall survival rate was 71%. At last follow-up, 27% of patients had developed late Grade 3 or worse toxicity (24% were hearing impairments), but none had radiation-induced neurologic damage. CONCLUSION The current strategy achieved encouraging results for this poor prognostic group, and confirmation of the therapeutic gain by a prospective randomized trial is warranted.
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Affiliation(s)
- Anne W M Lee
- Department of Clinical Oncology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong, China.
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Yu KH, Leung SF, Tung SY, Zee B, Chua DTT, Sze WM, Law SCK, Kam MKM, Leung TW, Sham JST, Lee AWM, Au JSK, Hui EP, Sze WK, Cheng ACK, Yau TK, Ngan RKC, Wong FCS, Au GKH, Chan ATC. Survival outcome of patients with nasopharyngeal carcinoma with first local failure: a study by the Hong Kong Nasopharyngeal Carcinoma Study Group. Head Neck 2005; 27:397-405. [PMID: 15726589 DOI: 10.1002/hed.20161] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND The purpose of this article is to report the overall survival (OS) outcome of patients with nasopharyngeal carcinoma (NPC) with local failure who received salvage treatment and to identify prognostic factors for OS. METHODS Between January 1996 and December 2000, 2915 patients received primary radiotherapy (RT) with or without chemotherapy for nonmetastatic NPC. At a median follow-up of 3.1 years, 319 patients had developed local failure as the first failure, with or without synchronous regional/distant failure. OS was calculated from the start of primary RT. Univariate and multivariate analyses were performed to identify prognostic factors for OS in patients with isolated local failure. RESULTS The T classification distribution of the local failure (rT classification) was as follows: 68 (21%) rT1 to T2a, 92 (29%) rT2b, 82 (26%) rT3, and 77 (24%) rT4. The rT classification was the same as the initial T classification in 82% of patients. Two hundred seventy-five patients (86%) had isolated local failure, and 232 (84%) of them did not have any distant metastasis or regional failure develop during follow-up. Salvage treatment was given to 200 patients (73%) with isolated local failure. One hundred fifty-nine patients (80%) received reirradiation (108 external beam RT [EBRT], 44 brachytherapy, and seven EBRT plus brachytherapy), 22 patients (11%) underwent nasopharyngectomy with or without postoperative RT, and 19 patients (9%) were treated with chemotherapy alone. Four patients died of RT complications, and one died of chemotherapy toxicity in the absence of active NPC. The 3-year actuarial OS for patients with isolated local failure was 74%. On multivariate analysis, advanced initial T classification (hazard ratio [HR], 1.44; p = .0006) and the use of salvage treatment (HR, 0.54; p = .0038) were independent prognostic factors. For the subgroups of patients who had the same recurrent and initial T classification, salvage treatment was associated with improved OS only in the subgroup with T1 to T2 local failure (n = 127; p = 0.0446), but not in the subgroups with T3 (n = 48) or T4 (n = 54) disease. CONCLUSIONS Most patients with first local failure have localized disease. Salvage treatment is feasible in most of the patients with clinically isolated local failure. Patients who had early initial T classification have a more favorable prognosis. Subgroup analysis suggests that salvage treatment only prolongs survival in patients with T1 to T2 recurrent disease.
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Affiliation(s)
- Kwok Hung Yu
- Department of Clinical Oncology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
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Lee AWM, Lau WH, Tung SY, Chua DTT, Chappell R, Xu L, Siu L, Sze WM, Leung TW, Sham JST, Ngan RKC, Law SCK, Yau TK, Au JSK, O'Sullivan B, Pang ESY, O SK, Au GKH, Lau JT. Preliminary Results of a Randomized Study on Therapeutic Gain by Concurrent Chemotherapy for Regionally-Advanced Nasopharyngeal Carcinoma: NPC-9901 Trial by the Hong Kong Nasopharyngeal Cancer Study Group. J Clin Oncol 2005; 23:6966-75. [PMID: 16192584 DOI: 10.1200/jco.2004.00.7542] [Citation(s) in RCA: 336] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Purpose This randomized study compared the results achieved by concurrent chemoradiotherapy (CRT) versus radiotherapy (RT) alone for nasopharyngeal carcinoma (NPC) with advanced nodal disease. Patients and Methods Patients with nonkeratinizing/undifferentiated NPC staged T1-4N2-3M0 were randomized to CRT or RT. Both arms were treated with the same RT technique and dose fractionation. The CRT patients were given cisplatin 100 mg/m2 on days 1, 22, and 43, followed by cisplatin 80 mg/m2 and fluorouracil 1,000 mg/m2/d for 96 hours starting on days 71, 99, and 127. Results From 1999 to January 2004, 348 eligible patients were randomly assigned; the median follow-up was 2.3 years. The two arms were well-balanced in all prognostic factors and RT parameters. The CRT arm achieved significantly higher failure-free survival (72% v 62% at 3-year, P = .027), mostly as a result of an improvement in locoregional control (92% v 82%, P = .005). However, distant control did not improve significantly (76% v 73%, P = .47), and the overall survival rates were almost identical (78% v 78%, P = .97). In addition, the CRT arm had significantly more acute toxicities (84% v 53%, P < .001) and late toxicities (28% v 13% at 3-year, P = .024). Conclusion Preliminary results confirmed that CRT could significantly improve tumor control, particularly at locoregional sites. However, there was significant increase in the risk of toxicities and no early gain in overall survival. Longer follow-up is needed to confirm the ultimate therapeutic ratio.
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Affiliation(s)
- Anne W M Lee
- Department of Clinical Oncology, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China.
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Isobe K, Uno T, Aruga T, Kawakami H, Ueno N, Hanazawa T, Okamoto Y, Ito H. Weekly cisplatin administration concurrent with radiation therapy for locoregionally advanced nasopharyngeal carcinoma. Int J Clin Oncol 2005; 10:201-3. [PMID: 15990971 DOI: 10.1007/s10147-004-0471-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2004] [Accepted: 12/10/2004] [Indexed: 11/26/2022]
Abstract
Radiation therapy (RT) with concurrent and adjuvant chemotherapy has been a widely accepted treatment for patients with locoregionally advanced nasopharyngeal carcinoma (NPC). We administered 40 mg/m2 cisplatin (CDDP) weekly, concurrently with RT, to six consecutive patients with locoregionally advanced NPC to evaluate its toxicity and efficacy. The median number of courses of CDDP administration was 4.5 and the median radiation dose was 69.7 Gy. Grade 3 leukopenia was observed in three patients. All but one patient experienced grade 3 or 4 skin reactions, pharyngitis, or dysphagia. All but one patient achieved a complete response, and the remaining patient received radical neck dissection for persistent cervical lymphadenopathies, which contained no cancer cells. All six patients were disease-free at last contact, with a median follow up of 23.5 months. This regimen is well tolerated in patients with locoregionally advanced NPC.
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Affiliation(s)
- Koichi Isobe
- Department of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chiba 260-8677, Japan.
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Abstract
Incidence of nasopharyngeal carcinoma has remained high in endemic regions. Diagnosing the disease in the early stages requires a high index of clinical acumen and, although most cross-sectional imaging investigations show the tumour with precision, confirmation is dependent on histology. Epstein-Barr virus (EBV)-encoded RNA signal is present in all nasopharyngeal carcinoma cells, and early diagnosis of the disease is possible through the detection of raised antibodies against EBV. The quantity of EBV DNA detected in blood indicates the stage and prognosis of the disease. Radiotherapy with concomitant chemotherapy has increased survival, and improved techniques (such as intensity-modulated radiotherapy), early detection of recurrence, and application of appropriate surgical salvage procedures have contributed to improved therapeutic results. Screening of high-risk individuals in endemic regions together with developments in gene therapy and immunotherapy might further improve outcome.
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Affiliation(s)
- William I Wei
- Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong SAR, China.
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Ang KK, Harris J, Garden AS, Trotti A, Jones CU, Carrascosa L, Cheng JD, Spencer SS, Forastiere A, Weber RS. Concomitant boost radiation plus concurrent cisplatin for advanced head and neck carcinomas: radiation therapy oncology group phase II trial 99-14. J Clin Oncol 2005; 23:3008-15. [PMID: 15860857 DOI: 10.1200/jco.2005.12.060] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To investigate the feasibility of combining concomitant boost accelerated radiation regimen (AFX-C) with cisplatin and to assess its toxicity and the relapse pattern and survival in patients with advanced head and neck carcinoma (HNC). PATIENTS AND METHODS Between April and November of 2000, 84 patients with stage III to IV HNC who met the eligibility criteria were enrolled; 76 of these patients were analyzable. Radiation consisted of 72 Gy in 42 fractions over 6 weeks (daily for 3.5 weeks, then twice a day for 2.5 weeks). Cisplatin dose was 100 mg/m(2) on days 1 and 22. Tumor and clinical status were assessed, and acute late toxicities were graded. RESULTS Sixty-five patients (86%) received both radiation and chemotherapy per protocol or with minor variations. The estimated 2-year locoregional relapse and distant metastasis rates were 34.7% and 16.1%, respectively. The estimated 2-year overall survival and disease-free survival rates were 71.6% and 53.5%, respectively. Three patients (4%) died of complications, 19 patients (25%) had acute grade 4 toxicity, and 49 patients (64%) had acute grade 3 toxicity. The 2-year cumulative incidence of late grade 3 to 5 toxicities was 51.3%. CONCLUSION These data showed that it was feasible to combine AFX-C with cisplatin. The compliance to therapy was high, and the locoregional control and survival rates achieved compared favorably with AFX-C alone or other concurrent chemoradiation regimens tested by the Radiation Therapy Oncology Group. A phase III trial comparing AFX-C plus cisplatin against standard radiation plus cisplatin is ongoing to determine whether the use of AFX-C in the concurrent chemoradiation setting further improves outcome.
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Affiliation(s)
- K Kian Ang
- The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd, Box 97, Houston, TX 77030, USA.
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Lu JJ, Shakespeare TP, Thiagarajan A, Zhang X, Liang L, Tan S. Prospective phase II trial of concomitant boost radiotherapy for stage II nasopharyngeal carcinoma: an evaluation of response and toxicity. Laryngoscope 2005; 115:806-10. [PMID: 15867644 DOI: 10.1097/01.mlg.0000157283.73284.a1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Stage II nasopharyngeal carcinoma (NPC) treated with conventionally fractionated radiotherapy results in loco-regional control of around 80%. This report aims to document the outcome of Stage II NPC patients treated with external beam radiotherapy delivered using an accelerated concomitant boost (C-Boost) schedule. METHODS AND MATERIALS Twenty-five 1997 AJCC Stage II NPC patients were enrolled and analyzed in this preliminary report. The primary tumor and clinically involved nodes received a total dose of 72 Gy in 42 fractions. C-Boost for gross disease consisted of 18 Gy in 12 fractions commencing on day 19 and was delivered at least 6 hours after the first dose. Patients were assessed for response, survival, and toxicity. RESULTS With a median follow-up of 24 months, only one patient had pathologically confirmed local recurrence, necessitating IMRT. Two developed distant metastases for which they received chemotherapy. One died from systemic disease after refusing treatment for persistent neck lymphadenopathy. Two-year loco-regional control rates, overall survival and disease-free survival rates were 96%, 96%, and 88%, respectively. All patients experienced some degree of acute and/or late toxicity. However, the toxicity profile was comparable to that seen following standard fractionation. Acute or late toxicities directly attributable to C-Boost were not observed. CONCLUSION This C-Boost radiotherapy regimen administers a substantially higher biologically effective dose compared with conventional radiation schedules. Preliminary locoregional control and survival rates are promising with no significant acute and/or late toxicities.
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Affiliation(s)
- Jiade Jay Lu
- Department of Radiation Oncology, National University Hospital, Singapore
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Rodriguez-Galindo C, Wofford M, Castleberry RP, Swanson GP, London WB, Fontanesi J, Pappo AS, Douglass EC. Preradiation chemotherapy with methotrexate, cisplatin, 5-fluorouracil, and leucovorin for pediatric nasopharyngeal carcinoma. Cancer 2005; 103:850-7. [PMID: 15641027 DOI: 10.1002/cncr.20823] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Nasopharyngeal carcinoma (NPC) is rare in children, accounting for <1% of all cases. Treatment most commonly includes radiotherapy but long-term side effects of such treatment can produce devastating cosmetic and functional sequelae in children. Chemotherapy may help to decrease the radiotherapy dose and limit the side effects of local therapies. However, little is known regarding the chemosensitivity of NPC tumors in pediatric patients. METHODS Patients with American Joint Committee on Cancer (AJCC) Stage I/II disease (Stratum 01) received irradiation only. Patients with AJCC Stage III/IV disease (Stratum 02) received 4 courses of preradiation chemotherapy comprising methotrexate (120 mg/m2) on Day 1, with cisplatin (100 mg/m2) 24 hours later, 5-fluorouracil 1000 mg/m2 per day as a continuous infusion for 3 days, and leucovorin 25 mg/m2 every 6 hours for 6 doses. Irradiation was given after chemotherapy and consisted of 50.4 gray (Gy) to the upper neck and 45.0 Gy to the lower neck, with a boost to the primary tumor and positive lymph nodes for a total dose of 61.2 Gy. RESULTS One patient was enrolled in Stratum 01 and 16 evaluable patients were enrolled in Stratum 02. The median age of the patients was 13 years and 65% of the patients were black. All patients tested had evidence of Epstein-Barr virus infection. Two-thirds of the patients developed Grade 3-4 mucositis during chemotherapy. The overall response rate to induction chemotherapy was 93.7%. The overall 4-year event-free and overall survival rates (+/- the standard error) were 77%+/-12% and 75%+/-12%, respectively. CONCLUSIONS The current study demonstrated that childhood NPC was sensitive to chemotherapy and that chemotherapy before irradiation was feasible. Future trials should investigate equivalent efficacy with a reduced radiotherapy dose.
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Affiliation(s)
- Carlos Rodriguez-Galindo
- Department of Hematology-Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.
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Kam MKM, Teo PML, Chau RMC, Cheung KY, Choi PHK, Kwan WH, Leung SF, Zee B, Chan ATC. Treatment of nasopharyngeal carcinoma with intensity-modulated radiotherapy: The Hong Kong experience. Int J Radiat Oncol Biol Phys 2004; 60:1440-50. [PMID: 15590175 DOI: 10.1016/j.ijrobp.2004.05.022] [Citation(s) in RCA: 403] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2004] [Revised: 04/07/2004] [Accepted: 05/13/2004] [Indexed: 10/26/2022]
Abstract
PURPOSE To evaluate the efficacy of using intensity-modulated radiotherapy (IMRT) in the primary treatment of nasopharyngeal carcinoma (NPC), including the role of dose escalation above 66 Gy level. METHODS AND MATERIALS Between July 2000 and September 2002, 63 newly diagnosed NPC patients were treated with IMRT. The disease was Stage I in 9 (14%), Stage II in 18 (29%), Stage III in 22 (35%), and Stage IV in 14 (22%). The prescribed dose was 66 Gy to the gross tumor volume (GTV) and positive neck nodes, 60 Gy to the planning target volume (PTV), and 54-60 Gy to the clinically negative neck. All 20 (100%) patients with T1-2a tumors received intracavitary brachytherapy (ICB) boost, and 15/42 (36%) patients with T2b-T4 tumors received conformal boost (8 Gy/4 fractions). Nineteen patients with advanced stage disease also received either neoadjuvant or concurrent chemotherapy. Acute and late normal tissue effects were graded according to the Radiation Therapy Oncology Group (RTOG) radiation morbidity scoring criteria. Local relapse-free survival (LRFS), nodal relapse-free survival (NRFS), distant metastasis-free survival (DMFS), and overall survival (OS) were estimated using the Kaplan-Meier method. RESULTS With a median follow-up of 29 months (range 8-45 months), 4 patients developed local in-field failure, 1 patient developed regional relapse, and 13 patients developed distant metastases. All 4 patients with local failure had either T3 or T4 disease before primary treatment and did not have ICB or conformal boost. The 3-year actuarial LRFS, NRFS, DMFS, and OS were 92%, 98%, 79%, and 90%, respectively. Multivariate analysis showed that dose escalation above 66 Gy was significantly associated with better PFS and DMFS, whereas GTV size was a significant adverse factor for OS. The worst acute mucositis was Grade 1 or 2 in 36 (59%), and Grade 3 in 25 (41%) patients. Acute dysphagia requiring tube feeding occurred in 5 (8%) patients. The proportion of patients with Grade 2-3 xerostomia was 57% at 3 months, and 23% at 2 years after IMRT. Within the subset of patients with a mean parotid dose of <31 Gy, the proportions with Grade 2-3 xerostomia were 30% and 17% at 3 months and 2 years, respectively. CONCLUSION Our experience of using IMRT in the primary treatment of NPC showed a very high rate of locoregional control and favorable toxicity profile. Furthermore, we found that dose escalation above 66 Gy of IMRT-based therapy was a significant determinant of progression-free survival and distant metastasis-free survival for advanced T-stage tumors. Distant metastases represent the predominant mode of treatment failure.
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Affiliation(s)
- Michael K M Kam
- Clinical Oncology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
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Le QT, Tate D, Koong A, Gibbs IC, Chang SD, Adler JR, Pinto HA, Terris DJ, Fee WE, Goffinet DR. Improved local control with stereotactic radiosurgical boost in patients with nasopharyngeal carcinoma. Int J Radiat Oncol Biol Phys 2003; 56:1046-54. [PMID: 12829140 DOI: 10.1016/s0360-3016(03)00117-2] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE Treatment of nasopharyngeal carcinoma using conventional external beam radiotherapy (EBRT) alone is associated with a significant risk of local recurrence. Stereotactic radiosurgery (STR) was used to boost the tumor site after EBRT to improve local control. METHODS AND MATERIALS Forty-five nasopharyngeal carcinoma patients received a STR boost after EBRT at Stanford University. Seven had T1, 16 had T2, 4 had T3, and 18 had T4 tumors (1997 American Joint Commission on Cancer staging). Ten had Stage II, 8 had Stage III, and 27 had Stage IV neoplasms. Most patients received 66 Gy of EBRT delivered at 2 Gy/fraction. Thirty-six received concurrent cisplatin-based chemotherapy. STR was delivered to the primary site 4-6 weeks after EBRT in one fraction of 7-15 Gy. RESULTS At a medium follow-up of 31 months, no local failures had occurred. The 3-year local control rate was 100%, the freedom from distant metastasis rate was 69%, the progression-free survival rate was 71%, and the overall survival rate was 75%. Univariate and multivariate analyses revealed N stage (favoring N0-N1, p = 0.02, hazard ratio HR 4.2) and World Health Organization histologic type (favoring type III, p = 0.002, HR 13) as significant factors for freedom from distant metastasis. World Health Organization histologic type (p = 0.004, HR 10.5) and age (p = 0.01, HR 1.07/y) were significant factors for survival. Late toxicity included transient cranial nerve weakness in 4, radiation-related retinopathy in 1, and asymptomatic temporal lobe necrosis in 3 patients who originally had intracranial tumor extension. CONCLUSION STR boost after EBRT provided excellent local control in nasopharyngeal carcinoma patients. The incidence of late toxicity was acceptable. More effective systemic treatment is needed to achieve improved survival.
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Affiliation(s)
- Quynh-Thu Le
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA 94305-5302, USA
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Lin JC, Jan JS, Chen KY, Hsu CY, Liang WM, Wang WY. Outpatient weekly 24-hour infusional adjuvant chemotherapy of cisplatin, 5-fluorouracil, and leucovorin for high-risk nasopharyngeal carcinoma. Head Neck 2003; 25:438-50. [PMID: 12784235 DOI: 10.1002/hed.10238] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Distant metastasis rather than locoregional recurrence is the major site of failure after adequate radiotherapy in nasopharyngeal carcinoma (NPC). The aim of this study is to evaluate the toxicity and survival of outpatient weekly 24-hour infusion adjuvant chemotherapy for NPC patients with high-risk of distant failure. METHODS Our definition of high-risk NPC included patients with (1) 1992 AJCC staging system of N3, T4N2, or N2 with one of nodal size > 4 cm; (2) supraclavicular node metastasis; and (3) residual disease after radiotherapy or neck relapse. From August 1994 to August 1997, 41 NPC patients matching the preceding criteria agreed to receive weekly PFL (cisplatin 25 mg/m(2), 5-fluorouracil 1250 mg/m(2), and leucovorin 120 mg/m(2)) adjuvant chemotherapy for a total of 18 weeks. Clinical data of another 88 patients with similar disease status who did not receive adjuvant chemotherapy during the same period were collected and analyzed for comparison. Survival analysis was investigated by the Kaplan-Meier method and the Cox proportional hazards model. RESULTS A total of 700 weekly chemotherapy doses was delivered to 41 patients. The ratio of actual/planned dose delivery was 94.9%. Grade 3-4 toxicity of adjuvant chemotherapy included leucopenia (7.3%), anemia (2.4%), thrombocytopenia (2.4%), and nausea/vomiting (2.4%). After a median follow-up of 70 months, 26.8% (11 of 41) and 47.7% (42 of 88) of patients in PFL and no adjuvant chemotherapy groups had distant metastasis (p =.0247). The 5-year metastasis-free survival rates were 71.9% for the PFL group compared with 48.4% for no adjuvant chemotherapy patients (p =.0187). The 5-year overall survival rates were 53.7% (PFL group) and 38.3% (no adjuvant chemotherapy group), respectively (p =.0666). Multivariate Cox analysis showed PFL adjuvant chemotherapy was the independent factor that predicted metastasis-free survival after adjustment for other variables. CONCLUSIONS Outpatient weekly 24-hour continuous infusion PFL adjuvant chemotherapy is a well-tolerated regimen with promising results in high-risk NPC patients and merits investigation in phase III studies.
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Affiliation(s)
- Jin-Ching Lin
- Department of Radiation Oncology, Taichung Veterans General Hospital, No 160, Sec 3, Taichung-Kang Rd, Taichung, 407, Taiwan.
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Lin JC, Jan JS, Hsu CY, Jiang RS, Wang WY. Outpatient weekly neoadjuvant chemotherapy followed by radiotherapy for advanced nasopharyngeal carcinoma: high complete response and low toxicity rates. Br J Cancer 2003; 88:187-94. [PMID: 12610501 PMCID: PMC2377053 DOI: 10.1038/sj.bjc.6600716] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a radiosensitive and chemosensitive tumour. The aim of this prospective study is to evaluate the toxicity and efficacy of an outpatient weekly neoadjuvant chemotherapy (NeoCT) plus radiotherapy for advanced NPC. From November 1998 to August 2001, 90 NPC patients meeting the following criteria were treated: (1) neck node >6 cm; (2) supraclavicular node metastasis; (3) skull base destruction/intracranial invasion plus multiple nodes metastasis; (4) multiple neck nodes metastasis with one of nodal size >4 cm; or (5) elevated serum LDH level. The NeoCT consists of cisplatin 60 mg m(-2), alternating with 5-fluorouracil 2500 mg m(-2) plus leucovorin 250 mg m(-2) (P-FL) by an outpatient weekly schedule for a total of 10 weeks. Local radiotherapy > or =70 Gy by conventional fractionation was delivered within 1 week after NeoCT. Patient compliance was rather good. Grade 3-4 toxicity of NeoCT included leucopaenia (7.8%), anaemia (18.9%), thrombocytopaenia (3.3%), nausea/vomiting (4.4%), and weight loss (1.1%). Response evaluated after NeoCT showed 73.3% complete response (CR) rate of primary tumour, 71.1% CR rate of neck nodes, and an overall CR rate of 57.8%. In all, 88 out of 90 patients received rebiopsy of primary tumour and 55 patients (62.5%) revealed pathological CR. After a median follow-up time of 24 months, one persistent disease and 18 relapses were noted. The 2-year nasopharynx disease-free, neck disease-free, distant disease-free, overall, and progression-free survival rates are 98.9, 95.9, 80.0, 92.1, and 77.5%, respectively. Preliminary data of the current study show that P-FL NeoCT plus radiotherapy is a low-toxic regimen with promising results on very advanced NPC patients and merits to be investigated in phase III trials.
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Affiliation(s)
- J-C Lin
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taiwan.
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Machtay M, Rosenthal DI, Hershock D, Jones H, Williamson S, Greenberg MJ, Weinstein GS, Aviles VM, Chalian AA, Weber RS. Organ preservation therapy using induction plus concurrent chemoradiation for advanced resectable oropharyngeal carcinoma: a University of Pennsylvania Phase II Trial. J Clin Oncol 2002; 20:3964-71. [PMID: 12351593 DOI: 10.1200/jco.2002.11.026] [Citation(s) in RCA: 176] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To determine the efficacy, feasibility, and toxicity of a new regimen for locally advanced oropharyngeal carcinoma. PATIENTS AND METHODS Patients had technically resectable stage III/IV squamous cell carcinoma of the oropharynx, exclusive of T1-2N1. Induction chemotherapy consisted of carboplatin (area under the curve formula equal to 6) and paclitaxel 200 mg/m(2) for two cycles, followed by re-evaluation. Patients with major response continued to definitive radiotherapy (70 Gy over 7 weeks) plus concurrent once-weekly paclitaxel (30 mg/m(2)/wk). Patients with advanced neck disease also underwent post-radiation therapy neck dissection and two more chemotherapy cycles. RESULTS Fifty-three patients were enrolled. Median follow-up was 31 months (minimum follow-up for survivors was 18 months). The major response rate to induction chemotherapy was 89%; 90% of patients had a complete response after concurrent chemoradiation. Actuarial survival at 3 years was 70%, and 3-year event-free survival was 59%. The 3-year actuarial locoregional control was 82% and the 3-year actuarial rate of distant metastases was 19%. Organ preservation was achieved in 77% of all patients. One patient (2%) died during therapy. Late grade 3 toxicity occurred in 24% of patients, consisting mainly of chronic dysphagia/aspiration and/or radiation soft tissue ulceration. The treatment-related mortality rate was 4% (two patients died from respiratory failure). CONCLUSION Response to induction chemotherapy as studied in this trial was not useful as a predictive marker for ultimate outcome or organ conservation. Overall, however, this regimen offers good disease control and survival for patients with locally advanced oropharyngeal carcinoma, comparable with other concurrent chemoradiation programs. Further study of similar protocols is indicated.
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Affiliation(s)
- Mitchell Machtay
- Department of Radiation Oncology, University of Pennsylvania Medical Center, Philadelphia 19104, USA.
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Levendag PC, Lagerwaard FJ, de Pan C, Noever I, van Nimwegen A, Wijers O, Nowak PJCM. High-dose, high-precision treatment options for boosting cancer of the nasopharynx. Radiother Oncol 2002; 63:67-74. [PMID: 12065105 DOI: 10.1016/s0167-8140(02)00008-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE The aim of the study is to define the role and type of high-dose, high-precision radiation therapy for boosting early staged T1,2a, but in particular locally advanced, T2b-4, nasopharyngeal cancer (NPC). MATERIALS AND METHODS Ninety-one patients with primary stage I-IVB NPC, were treated between 1991 and 2000 with 60-70Gy external beam radiation therapy (ERT) followed by 11-18Gy endocavitary brachytherapy (ECBT) boost. In 1996, for stage III-IVB disease, cisplatinum (CDDP)-based neoadjuvant chemotherapy (CHT) was introduced per protocol. Patients were analyzed for local control and overall survival. For a subset of 18 patients, a magnetic resonance imaging (MRI) scan at 46Gy was obtained. After matching with pre-treatment computed tomogram, patients (response) were graded into four categories; i.e. LD (T1,2a, with limited disease, i.e. disease confined to nasopharynx), LRD (T2b, with limited residual disease), ERD (T2b, with extensive residual disease), or patients initially diagnosed with T3,4 tumors. Dose distributions for ECBT (Plato-BPS v. 13.3, Nucletron) were compared to parallel-opposed three-dimensional conformal radiation therapy (Cadplan, Varian Dosetek v. 3.1), intensity modulated radiation therapy (IMRT) (Helios, Varian) and stereotactic radiotherapy (SRT) (X-plan, Radionics v. 2.02). RESULTS For stage T1,2N0,1 tumors, at 2 years local control of 96% and overall survival of 80% were observed. For the poorest subset of patients, well/moderate/poorly differentiated T3,4 tumors, local control and overall survival at 2 years with CHT were 67 and 67%, respectively, vs. local control of 20% and overall survival of 12% without CHT. For LD and LRD, conformal target coverage and optimal sparing can be obtained with brachytherapy. For T2b-ERD and T3,4 tumors, these planning goals are better achieved with SRT and/or IMRT. CONCLUSIONS The dosimetric findings, ease of application of the brachytherapy procedure, and the clinical results in early staged NPC, necessitates ERT combined with brachytherapy boost to be the therapy of preference for LD and LRD. For locally advanced T3,4 tumors, our current protocol indicates neoadjuvant chemotherapy in conjunction with high cumulative doses of radiotherapy (81Gy); IMRT and/or SRT to be the preferred technique for boosting the primary tumor.
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Affiliation(s)
- Peter C Levendag
- Department of Radiation-Oncology, Erasmus Medical Center, Daniel den Hoed Kliniek, Groene Hilledijk 301, Rotterdam, The Netherlands
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Abstract
Nasopharyngeal carcinoma (NPC), although rare in Europe and North America, is not uncommon in parts of Asia such as southern China and Hong Kong. Consequently, very few oncologists in the Western world have extensive experience in treating this neoplasm. Treatment using external beam therapy and/or brachytherapy evolved greatly during the 20th century and is still evolving, particularly with the use of adjunctive chemotherapy regimes. Diagnosis of NPC has also improved with the availability of CT and MRI. This worldwide review is divided into historical, transitional and modern eras, with the latter concerning 1971-2000. Currently, the most controversial aspects of NPC are recommendations for treatment of recurrent disease and the role of chemotherapy in the overall framework of treatment. Comparison of results from different centres is not possible without an understanding of the various staging systems that are, and have been, used; a comparison is given in this review. In the future, early diagnosis, adequate radiation dose to the primary with boost to bulky disease, and regular follow-up with biopsy of any suspicious residual or recurrent disease, are likely to become key issues to improve outcome. Also, apart from direct/indirect nasopharyngoscopy, the role of follow-up CT needs to be studied for early detection of residual or recurrent disease. More clinical trials on chemo-radiation are also required, in order to study optimum doses and agents.
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Affiliation(s)
- R F Mould
- Department of Radiation Oncology, Allan Blair Cancer Centre, 4101 Dewdney Avenue, Regina, Saskatchewan, S4T 7T1 Canada
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