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Wang JJ, Shao H, Zhang L, Jing M, Xu WJ, Sun HW, Zhou ZW, Zhang YJ. Preoperative chemoradiation-induced hematological toxicity and related vertebral dosimetry evaluations in patients with locally advanced gastric cancer: data from a phase III clinical trial. Radiat Oncol 2023; 18:100. [PMID: 37365597 DOI: 10.1186/s13014-023-02269-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 04/21/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND To explore the hematological toxicity (HT) induced by neoadjuvant chemoradiotherapy (nCRT) compared with neoadjuvant chemotherapy (nCT) and to identify the appropriate vertebral body (VB) dosimetric parameters for predicting HT in patients with locally advanced gastric cancer (GC). METHODS In the phase III study, 302 patients with GC from an ongoing multi-center randomized clinical trial (NCT01815853) were included. Patients from two major centers were grouped into training and external validation cohorts. The nCT group received three cycles of XELOX chemotherapy, while the nCRT received the same dose-reduced chemotherapy plus 45 Gy radiotherapy. The complete blood counts at baseline, during neoadjuvant treatment, and in the preoperative period were compared between the nCT and nCRT groups. The VB was retrospectively contoured and the dose-volume parameters were extracted in the nCRT group. Patients' clinical characteristics, VB dosimetric parameters, and HTs were statistically analyzed. Instances of HT were graded according to the Common Terminology Criteria for Adverse Events v5.0 (CTCAE v5.0). The receiver operating characteristic (ROC) curves were generated to identify the optimal cut-off points for dosimetric variables and verify the prediction efficiency of the dosimetric index in both training and external validation cohorts. RESULTS In the training cohort, 27.4% Grade 3 + HTs were noted in the nCRT group and 16.2% in the nCT group (P = 0.042). A similar result was exhibited in the validation cohort, with 35.0% Grade 3 + HTs in the nCRT group and 13.2% in the nCT group (P = 0.025). The multivariate analysis of the training cohort revealed that V5 was associated with Grade 3 + leukopenia (P = 0.000), Grade 3 + thrombocytopenia (P = 0.001), and Grade 3 + total HTs (P = 0.042). The Spearman correlation analysis identified a significant correlation of V5 with the white blood cell nadir (P = 0.0001) and platelet nadir (P = 0.0002). The ROC curve identified the optimal cut-off points for V5 and showed that V5 < 88.75% could indicate a decreased risk of Grade 3 + leukopenia, thrombocytopenia, and total HTs in the training as well as the external validation cohorts. CONCLUSIONS Compared with nCT, nCRT could increase the risk of Grade 3 + HT in patients with locally advanced GC. Dose constraints of V5 < 88.75% in irradiated VB could reduce the incidence of Grade 3 + HT.
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Affiliation(s)
- Ji-Jin Wang
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, People's Republic of China
| | - Han Shao
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, People's Republic of China
| | - Li Zhang
- Department of Oncology, Renmin Hospital, Hubei University of Medicine, 442000, Shiyan, People's Republic of China
| | - Ming Jing
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, People's Republic of China
| | - Wen-Jing Xu
- Department of Radiotherapy, Guangdong Provincial People's hospital, Guangdong Academy of Medical Sciences, Cancer center, 510080, Guangzhou, People's Republic of China
| | - Heng-Wen Sun
- Department of Radiotherapy, Guangdong Provincial People's hospital, Guangdong Academy of Medical Sciences, Cancer center, 510080, Guangzhou, People's Republic of China.
| | - Zhi-Wei Zhou
- Department of Gastric Surgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, People's Republic of China
| | - Yu-Jing Zhang
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, People's Republic of China.
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Abstract
Dose constraints are essential for performing dosimetry, especially for intensity modulation and for radiotherapy under stereotaxic conditions. We present the update of the recommendations of the French society of oncological radiotherapy for the use of these doses in classical current practice but also for reirradiation.
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Affiliation(s)
- G Noël
- Département de radiothérapie-oncologie, Institut de cancérologie Strasbourg Europe (ICANS), 17, rue Albert-Calmette, BP 23025, 67033 Strasbourg, France.
| | - D Antoni
- Département de radiothérapie-oncologie, Institut de cancérologie Strasbourg Europe (ICANS), 17, rue Albert-Calmette, BP 23025, 67033 Strasbourg, France
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Kuntz L, Noel G. [Pelvic irradiation and hematopoietic toxicity: A review of the literature]. Cancer Radiother 2020; 25:77-91. [PMID: 33358082 DOI: 10.1016/j.canrad.2020.05.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 04/21/2020] [Accepted: 05/03/2020] [Indexed: 02/03/2023]
Abstract
Pelvic bone marrow is the site of nearly 50% of total hematopoiesis. Radiation therapy of pelvic lymph node areas, and cancers located near the bony structures of the pelvis, exposes to hematological toxicity in the range of 30 to 70%. This toxicity depends on many factors, including the presence or absence of concomitant chemotherapy and its type, the volume of irradiated bone, the received doses, or the initial hematopoietic reserve. Intensity modulated radiation therapy allows the optimisation of dose deposit on at risk organs while providing optimal coverage of target volumes. However, this suggests that dose constraints should be known precisely to limit the incidence of radiation side effects. This literature review focuses firstly on pelvic lymph node areas and bony volumes nearby, then on the effects of irradiation on bone marrow and the current dosimetric constraints resulting from it, and finally on hematological toxicities by carcinologic location and progress in reducing these toxicities.
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Affiliation(s)
- L Kuntz
- Département de radiothérapie, institut de cancérologie Strasbourg Europe (ICANS), 17, rue Albert-Calmette, 67200 Strasbourg, France
| | - G Noel
- Département de radiothérapie, institut de cancérologie Strasbourg Europe (ICANS), 17, rue Albert-Calmette, 67200 Strasbourg, France.
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Kumar T, Schernberg A, Busato F, Laurans M, Fumagalli I, Dumas I, Deutsch E, Haie-Meder C, Chargari C. Correlation between pelvic bone marrow radiation dose and acute hematological toxicity in cervical cancer patients treated with concurrent chemoradiation. Cancer Manag Res 2019; 11:6285-6297. [PMID: 31372035 PMCID: PMC6636180 DOI: 10.2147/cmar.s195989] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/25/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose To evaluate the association between pelvic bone marrow (BM) dose volume parameters and probability of acute hematological toxicity (HT), a cohort of cervical cancer patients receiving definitive chemoradiation (CRT) was assessed. Materials and methods Medical records of patients treated by CRT (45 Gy in 25 fractions, without dose constraints applied to the BM) were reviewed. Baseline and weekly hematological parameters were collected. BM was retrospectively delineated and divided into sub-sites: iliac crests, lower pelvis, lumbosacral region. BM volumes (V) receiving 5, 10, 20, 30, 40 Gy (V5, V10, V20, V30, V40, respectively) and mean dose (Dm) were calculated. Logistic regression was used to analyze associations between HT and dose-volume histograms parameters. Results 114 patients were included. 75.4% were treated with 3D radiation therapy and 24.6% were receiving intensity modulated radiation therapy (IMRT). Neither age, chemotherapy regimen (cisplatin vs carboplatin), number of chemotherapy cycles, performance status, body mass index, or para-aortic irradiation were associated with HT. In univariate analysis, more frequent grade 3+ leukopenia was found in the IMRT group (odds ratio [OR]: 3.5; 95% CI, 1.4–9.1; p=0.007). In multivariate analysis, grade 4 HT was associated with lower pelvis V5>95% (OR 4.1; 95% CI, 1.6–14. p=0.02), lower pelvis V20>45% (OR 3.5; 95% CI, 1.1–13.4; p=0.05), total pelvic bone V20>65%, and iliac crests Dm >31 Gy (OR 4.5; 95% CI, 1.4–14.7; p=0.02). Conclusion The following dose constraints could be proposed to decrease acute HT risk: lower pelvis V5<95%, lower pelvis V20≤45%, total pelvic bone V20<65%, and iliac crests Dm <31 Gy.
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Affiliation(s)
- T Kumar
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France.,Radiotherapy Department, University Hospital of Grenoble, Grenoble, France
| | - A Schernberg
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - F Busato
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - M Laurans
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - I Fumagalli
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - I Dumas
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - E Deutsch
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - C Haie-Meder
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France
| | - C Chargari
- Brachytherapy Unit, Gustave Roussy, Cancer Campus, Villejuif, France.,Radiotherapy Department, Gustave Roussy, Villejuif, France.,Departement 'Effets Biologiques des Radiations', Institut de Recherche Biomédicale des Armées, Brétigny sur Orge, France.,French Military Health Academy, Ecole du Val-de-Grâce, Paris, France
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