Nattinee Wattakiyanon MD , Mahmood Aminilari PhD , Xiang Y. Ye MSc , Ur Metser MD , Anca Prica MD , Michael Crump MD , John Kuruvilla MD , Vishal Kukreti MD , Robert Kridel MD , Abi Vijenthira MD , Sita Bhella MD , Matthew Cheung MD , Thayalasuthan Vivekanandan MD , Danielle Rodin MD , May Tsao MD , David Hodgson MD
{"title":"部分代谢反应的原发性纵隔 B 细胞淋巴瘤患者的预后:多中心回顾性分析","authors":"Nattinee Wattakiyanon MD , Mahmood Aminilari PhD , Xiang Y. Ye MSc , Ur Metser MD , Anca Prica MD , Michael Crump MD , John Kuruvilla MD , Vishal Kukreti MD , Robert Kridel MD , Abi Vijenthira MD , Sita Bhella MD , Matthew Cheung MD , Thayalasuthan Vivekanandan MD , Danielle Rodin MD , May Tsao MD , David Hodgson MD","doi":"10.1016/j.adro.2025.101744","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>Many patients with primary mediastinal B-cell lymphoma (PMBCL) achieve only a partial metabolic response (PMR) after initial systemic therapy. However, limited data exist on their outcomes. This study aimed to characterize outcomes in patients with PMBCL who achieve PMR and identify factors guiding appropriate treatment for these patients.</div></div><div><h3>Methods and Materials</h3><div>We reviewed patients PMBCL patients treated at 2 independent cancer centers from January 2009 through September 2021. Using the modified Lugano criteria (2014), end-of-chemotherapy positron emission tomography (PET) scan results were evaluated to assess response. Progression-free survival (PFS) and overall survival (OS) rates from the end-of-chemotherapy PET scan date were estimated using the Kaplan-Meier method.</div></div><div><h3>Results</h3><div>A total of 151 patients with PMBCL aged between 15 and 65 years were initiated on systemic therapy and underwent a fluorodeoxyglucose PET scan to evaluate response. Of these, 55 (36%) achieved incomplete metabolic response (IMR) (Deauville score [DS] 4 or 5): 13 (8%) progressed on systemic therapy (a DS score of 5), and 42 (27%) achieved a PMR (a DS score of 4). The 4-year PFS and OS rates for all patients (N = 55) with IMR were 73% and 72%, respectively. PMR management included consolidative radiation therapy (RT) in 36 patients (86%), further chemotherapy in 3 patients (7%), and observation in 3 patients (7%). Four-year PFS and OS among all patients with PMR were 83% and 81%, respectively, and 89% and 87% among those receiving RT. Patients with PMR with maximum standard unit value (SUVmax) > 5 had a lower 4-year PFS (74%) compared with those with SUVmax ≤ 5 (95%), although this difference did not achieve statistical significance (<em>P</em> = .07). None of the 3 patients with PMR under observation relapsed.</div></div><div><h3>Conclusions</h3><div>Patients with PMBCL often have an IMR. PMR (a DS score of 4) managed with subsequent RT is associated with excellent outcomes. SUVmax may identify patients who may require more or less intensive treatment.</div></div>","PeriodicalId":7390,"journal":{"name":"Advances in Radiation Oncology","volume":"10 5","pages":"Article 101744"},"PeriodicalIF":2.2000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Outcomes of Primary Mediastinal B-cell Lymphoma Patients with Partial Metabolic Response: A Multicenter Retrospective Analysis\",\"authors\":\"Nattinee Wattakiyanon MD , Mahmood Aminilari PhD , Xiang Y. Ye MSc , Ur Metser MD , Anca Prica MD , Michael Crump MD , John Kuruvilla MD , Vishal Kukreti MD , Robert Kridel MD , Abi Vijenthira MD , Sita Bhella MD , Matthew Cheung MD , Thayalasuthan Vivekanandan MD , Danielle Rodin MD , May Tsao MD , David Hodgson MD\",\"doi\":\"10.1016/j.adro.2025.101744\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Purpose</h3><div>Many patients with primary mediastinal B-cell lymphoma (PMBCL) achieve only a partial metabolic response (PMR) after initial systemic therapy. However, limited data exist on their outcomes. This study aimed to characterize outcomes in patients with PMBCL who achieve PMR and identify factors guiding appropriate treatment for these patients.</div></div><div><h3>Methods and Materials</h3><div>We reviewed patients PMBCL patients treated at 2 independent cancer centers from January 2009 through September 2021. Using the modified Lugano criteria (2014), end-of-chemotherapy positron emission tomography (PET) scan results were evaluated to assess response. Progression-free survival (PFS) and overall survival (OS) rates from the end-of-chemotherapy PET scan date were estimated using the Kaplan-Meier method.</div></div><div><h3>Results</h3><div>A total of 151 patients with PMBCL aged between 15 and 65 years were initiated on systemic therapy and underwent a fluorodeoxyglucose PET scan to evaluate response. Of these, 55 (36%) achieved incomplete metabolic response (IMR) (Deauville score [DS] 4 or 5): 13 (8%) progressed on systemic therapy (a DS score of 5), and 42 (27%) achieved a PMR (a DS score of 4). The 4-year PFS and OS rates for all patients (N = 55) with IMR were 73% and 72%, respectively. PMR management included consolidative radiation therapy (RT) in 36 patients (86%), further chemotherapy in 3 patients (7%), and observation in 3 patients (7%). Four-year PFS and OS among all patients with PMR were 83% and 81%, respectively, and 89% and 87% among those receiving RT. Patients with PMR with maximum standard unit value (SUVmax) > 5 had a lower 4-year PFS (74%) compared with those with SUVmax ≤ 5 (95%), although this difference did not achieve statistical significance (<em>P</em> = .07). None of the 3 patients with PMR under observation relapsed.</div></div><div><h3>Conclusions</h3><div>Patients with PMBCL often have an IMR. PMR (a DS score of 4) managed with subsequent RT is associated with excellent outcomes. SUVmax may identify patients who may require more or less intensive treatment.</div></div>\",\"PeriodicalId\":7390,\"journal\":{\"name\":\"Advances in Radiation Oncology\",\"volume\":\"10 5\",\"pages\":\"Article 101744\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-02-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Radiation Oncology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2452109425000326\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ONCOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Radiation Oncology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452109425000326","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ONCOLOGY","Score":null,"Total":0}
Outcomes of Primary Mediastinal B-cell Lymphoma Patients with Partial Metabolic Response: A Multicenter Retrospective Analysis
Purpose
Many patients with primary mediastinal B-cell lymphoma (PMBCL) achieve only a partial metabolic response (PMR) after initial systemic therapy. However, limited data exist on their outcomes. This study aimed to characterize outcomes in patients with PMBCL who achieve PMR and identify factors guiding appropriate treatment for these patients.
Methods and Materials
We reviewed patients PMBCL patients treated at 2 independent cancer centers from January 2009 through September 2021. Using the modified Lugano criteria (2014), end-of-chemotherapy positron emission tomography (PET) scan results were evaluated to assess response. Progression-free survival (PFS) and overall survival (OS) rates from the end-of-chemotherapy PET scan date were estimated using the Kaplan-Meier method.
Results
A total of 151 patients with PMBCL aged between 15 and 65 years were initiated on systemic therapy and underwent a fluorodeoxyglucose PET scan to evaluate response. Of these, 55 (36%) achieved incomplete metabolic response (IMR) (Deauville score [DS] 4 or 5): 13 (8%) progressed on systemic therapy (a DS score of 5), and 42 (27%) achieved a PMR (a DS score of 4). The 4-year PFS and OS rates for all patients (N = 55) with IMR were 73% and 72%, respectively. PMR management included consolidative radiation therapy (RT) in 36 patients (86%), further chemotherapy in 3 patients (7%), and observation in 3 patients (7%). Four-year PFS and OS among all patients with PMR were 83% and 81%, respectively, and 89% and 87% among those receiving RT. Patients with PMR with maximum standard unit value (SUVmax) > 5 had a lower 4-year PFS (74%) compared with those with SUVmax ≤ 5 (95%), although this difference did not achieve statistical significance (P = .07). None of the 3 patients with PMR under observation relapsed.
Conclusions
Patients with PMBCL often have an IMR. PMR (a DS score of 4) managed with subsequent RT is associated with excellent outcomes. SUVmax may identify patients who may require more or less intensive treatment.
期刊介绍:
The purpose of Advances is to provide information for clinicians who use radiation therapy by publishing: Clinical trial reports and reanalyses. Basic science original reports. Manuscripts examining health services research, comparative and cost effectiveness research, and systematic reviews. Case reports documenting unusual problems and solutions. High quality multi and single institutional series, as well as other novel retrospective hypothesis generating series. Timely critical reviews on important topics in radiation oncology, such as side effects. Articles reporting the natural history of disease and patterns of failure, particularly as they relate to treatment volume delineation. Articles on safety and quality in radiation therapy. Essays on clinical experience. Articles on practice transformation in radiation oncology, in particular: Aspects of health policy that may impact the future practice of radiation oncology. How information technology, such as data analytics and systems innovations, will change radiation oncology practice. Articles on imaging as they relate to radiation therapy treatment.