Cancer Research and Treatment

Original Articles

CNS cancer

Suggestions for Escaping the Dark Ages for Pediatric Diffuse Intrinsic Pontine Glioma Treated with Radiotherapy: Analysis of Prognostic Factors from the National Multicenter Study: Hyun Ju Kim, Joo Ho Lee, Youngkyong Kim, Do Hoon Lim, Shin-Hyung Park, Seung Do Ahn, In Ah Kim, Jung Ho Im, Jae Wook Chung, Joo-Young Kim, Il Han Kim, Hong In Yoon, Chang-Ok Suh; Cancer Res Treat. 2023;55(1):41-49. Published online March 4, 2022; DOI: https://doi.org/10.4143/crt.2021.1514

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Purpose
This multicenter retrospective study aimed to investigate clinical, radiologic, and treatment-related factors affecting survival in patients with newly diagnosed diffuse intrinsic pontine glioma (DIPG) treated with radiotherapy.
Materials and Methods
Patients aged <30 years who underwent radiotherapy as an initial treatment for DIPG between 2000 and 2018 were included; patients who did not undergo magnetic resonance imaging at diagnosis and those with pathologically diagnosed grade I glioma were excluded. We examined medical records of 162 patients collected from 10 participating centers in Korea. The patients’ clinical, radiological, molecular, and histopathologic characteristics, and treatment responses were evaluated to identify the prognosticators for DIPG and estimate survival outcomes.
Results
The median follow-up period was 10.8 months (interquartile range, 7.5 to 18.1). The 1- and 2-year overall survival (OS) rates were 53.5% and 19.0%, respectively, with a median OS of 13.1 months. Long-term survival rate (≥ 2 years) was 16.7%, and median OS was 43.6 months. Age (< 10 years), poor performance status, treatment before 2010, and post-radiotherapy necrosis were independently associated with poor OS in multivariate analysis. In patients with increased post-radiotherapy necrosis, the median OS estimates were 13.3 months and 11.4 months with and without bevacizumab, respectively (p=0.138).
Conclusion
Therapeutic strategy for DIPG has remained unchanged over time, and the associated prognosis remains poor. Our findings suggest that appropriate efforts are needed to reduce the occurrence of post-radiotherapy necrosis. Further well-designed clinical trials are recommended to improve the poor prognosis observed in DIPG patients.

Citations

Citations to this article as recorded by

Advancements in Image-Based Models for High-Grade Gliomas Might Be Accelerated
Guido Frosina
Cancers.2024; 16(8): 1566. CrossRef
The relationship between imaging features, therapeutic response, and overall survival in pediatric diffuse intrinsic pontine glioma
Xiaojun Yu, Mingyao Lai, Juan Li, Lichao Wang, Kunlin Ye, Dong Zhang, Qingjun Hu, Shaoqun Li, Xinpeng Hu, Qiong Wang, Mengjie Ma, Zeyu Xiao, Jiangfen Zhou, Changzheng Shi, Liangping Luo, Linbo Cai
Neurosurgical Review.2024;[Epub] CrossRef
Current status and advances to improving drug delivery in diffuse intrinsic pontine glioma
Lauren M. Arms, Ryan J. Duchatel, Evangeline R. Jackson, Pedro Garcia Sobrinho, Matthew D. Dun, Susan Hua
Journal of Controlled Release.2024; 370: 835. CrossRef
Pediatric diffuse intrinsic pontine glioma radiotherapy response prediction: MRI morphology and T2 intensity-based quantitative analyses
Xiaojun Yu, Shaoqun Li, Wenfeng Mai, Xiaoyu Hua, Mengnan Sun, Mingyao Lai, Dong Zhang, Zeyu Xiao, Lichao Wang, Changzheng Shi, Liangping Luo, Linbo Cai
European Radiology.2024; 34(12): 7962. CrossRef

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Breast cancer

Postmastectomy Radiation Therapy for Node-Negative Breast Cancer of 5 cm or Larger Tumors: A Multicenter Retrospective Analysis (KROG 20-03): Kyubo Kim, Jinhong Jung, Haeyoung Kim, Wonguen Jung, Kyung Hwan Shin, Ji Hyun Chang, Su Ssan Kim, Won Park, Jee Suk Chang, Yong Bae Kim, Sung Ja Ahn, Ik Jae Lee, Jong Hoon Lee, Hae Jin Park, Jihye Cha, Juree Kim, Jin Hwa Choi, Taeryool Koo, Jeanny Kwon, Jin Hee Kim, Mi Young Kim, Shin-Hyung Park, Yeon-Joo Kim; Cancer Res Treat. 2022;54(2):497-504. Published online August 25, 2021; DOI: https://doi.org/10.4143/crt.2021.933

Abstract PDF PubReader ePub

Purpose
To evaluate the role of postmastectomy radiation therapy (PMRT) in patients with node-negative breast cancer of 5cm or larger tumors undergoing mastectomy
Materials and Methods
Medical records of 274 patients from 18 institutions treated with mastectomy between January 2000 and December 2016 were retrospectively reviewed. Among these, 202 patients underwent PMRT, while 72 did not. Two hundred and forty-one patients (88.0%) received systemic chemotherapy, and 172 (62.8%) received hormonal therapy. Patients receiving PMRT were younger, more likely to have progesterone receptor-positive tumors, and received adjuvant chemotherapy more frequently compared with those without PMRT (p <0.001, 0.018, and <0.001, respectively). Other characteristics were not significantly different between the two groups.
Results
With a median follow-up of 95 months (range, 1-249), there were 9 locoregional recurrences, and 20 distant metastases. The 8-year locoregional recurrence-free survival rates were 98.0% with PMRT and 91.3% without PMRT (p=0.133), and the 8-year disease-free survival (DFS) rates were 91.8% with PMRT and 73.9% without PMRT (p=0.008). On multivariate analysis incorporating age, histologic grade, lymphovascular invasion, hormonal therapy, chemotherapy, and PMRT, the absence of lymphovascular invasion and the receipt of PMRT were associated with improved DFS (p=0.025 and 0.009, respectively).
Conclusion
Locoregional recurrence rate was very low in node-negative breast cancer of 5cm or larger tumors treated with mastectomy regardless of the receipt of PMRT. However, PMRT was significantly associated with improved DFS. Further investigation is needed to confirm these findings.

Citations

Citations to this article as recorded by

Outcomes with and without postmastectomy radiotherapy for pT3N0‐1M0 breast cancer: An institutional experience
Xinxin Rao, Xuanyi Wang, Kairui Jin, Yilan Yang, Xu Zhao, Zhe Pan, Weiluo Lv, Zhen Zhang, Li Zhang, Xiaoli Yu, Xiaomao Guo
Cancer Medicine.2024;[Epub] CrossRef
The effect of radiotherapy on patients with pathological stage IIB breast cancer after breast-conserving surgery or mastectomy: A cohort study
Yi-Ying Pan, Tzu-Yu Lai, Cheng-Ying Shiau, Ling-Ming Tseng, I-Chun Lai, Yu-Ming Liu, Pin-I Huang
Journal of the Chinese Medical Association.2024; 87(2): 202. CrossRef
Post-mastectomy radiation therapy after breast reconstruction: from historic dogmas to practical expert agreements based on a large literature review of surgical and radiation therapy considerations
Yazid Belkacemi, Meena S. Moran, Burcu Celet Ozden, Yazan Masannat, Fady Geara, Mohamed Albashir, Nhu Hanh To, Kamel Debbi, Mahmoud El Tamer
Critical Reviews in Oncology/Hematology.2024; 200: 104421. CrossRef
Impact of the 21-gene recurrence score testing on chemotherapy selection and clinical outcomes in T3N0 luminal breast cancer
Ke Liu, Jia-Yi Li, Guan-Qiao Li, Zhen-Yu He, San-Gang Wu
Expert Review of Anticancer Therapy.2024; 24(12): 1283. CrossRef
Post-Mastectomy Radiation Therapy: Applications and Advancements
Jessica L. Thompson, Steven G. Allen, Cecilia Pesavento, Corey W. Speers, Jacqueline S. Jeruss
Current Breast Cancer Reports.2022; 14(3): 75. CrossRef

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