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ASSESSMENT OF GENETIC TESTING FOLLOWING CURRENT COMPREHENSIVE CLINICAL DIAGNOSTIC EVALUATION FOR PEDIATRIC SEVERE APLASTIC ANEMIA 当前儿科严重再生障碍性贫血综合临床诊断评估后的基因检测评估
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100328
Helen D. Reed , Jill L. O. de Jong , Melissa Gaviria , Ashwin Koppayi , Youssef Ahmed , Ian Atkinson , Margret Joos , Maggie Malsch , Matthew McClung , Peter Nicholas , Mancy Shah , Erin E. Sullivan , Hongbo Xie , Silvia Zavarella , Yu Zhou , Barry Zorman , Lucy A. Godley , Taizo A. Nakano , Timothy S. Olson , Alison A. Bertuch , Akiko Shimamura
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引用次数: 0
IN-VIVO MOUSE MODEL OF ACUTE MYELOID LEUKEMIA DEVELOPMENT IN CONGENITAL NEUTROPENIA 先天性中性粒细胞减少症急性髓性白血病发展的小鼠体内模型
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100333
Jérémy Haaf, Malte Ritter, Patricia Arreba-Tutusaus, Siarhei Kandabarau, Maksim Klimiankou, Julia Skokowa
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引用次数: 0
MITOTIC DEFECTS IMPAIRED CD34+ PROLIFERATION IN GATA2 DEFICIENCY 有丝分裂缺陷损害了gata2缺乏时cd34 +的增殖
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100335
Maria Magallon-Mosella , Damia Romero-Moya , Cristina Calvo , Joan Pera , Eric Torralba-Sales , Miriam Erlacher , Òscar Molina , Alessandra Giorgetti
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引用次数: 0
BH3-MIMETIC TREATMENT REVEALS SUBTYPE-SPECIFIC BCL-2 PROTEIN DEPENDENCY IN PEDIATRIC MDS WITH EXCESS BLASTS 模拟bh3治疗揭示了小儿MDS细胞过多的亚型特异性bcl-2蛋白依赖性
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100355
Sheila Bohler , Ayami Yoshimi Nöllke , Nastassja Scheidegger , Ben Haladik , Beat Bornhauser , Michael N. Dworzak , Kaan Boztug , Markus Schmugge , Charlotte M. Niemeyer , Miriam Erlacher
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引用次数: 0
STRATUS PRIMETM A GMP COMPLIANT PROCESS TO CREATE HIGH NUMBERS OF HLA COMPATIBLE DEFINITIVE HSPCS FROM IPSCS USING PIEZO1 AGONISTS Stratus primetm是一个符合GMP的流程,使用piezo1激动剂从ipscs中创建大量hla兼容的最终HSPCS
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100356
Michael P. Cooke , Aayudh Das , Gurinder Singh , Zhi-Jian Liu , Qiao Lin , Sita Karan Patel , Jack Li , Vijaya G. Tirunagaru
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引用次数: 0
MACROPHAGE POLARIZATION AND CD47 BLOCKADE IN PTPN11-MUTATED JUVENILE MYELOMONOCYTIC LEUKEMIA ptpn11突变的幼年粒细胞白血病中巨噬细胞极化和cd47阻断
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100409
Jun Wang , Jovana Rajak , Hui Xiao , Naile Koleci , Anna Lena Stippel , Ke Meng , Niels Anton Wehner , Sheila Bohler , Charlotte Niemeyer , Bertram Bengsch , Miriam Erlacher
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引用次数: 0
MOLECULAR PROFILING OF JUVENILE MYELOMONOCYTIC LEUKEMIA: CHARACTERIZATION OF PATIENTS WITH MULTIPLE ONCOGENIC VARIANTS USING A TARGETED NGS PANEL 少年髓单细胞白血病的分子分析:使用靶向NGS面板的多种致癌变异患者的特征
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100416
Sâmia Frahia Bento da Silva , Juliana Costa Gaspar , Neysimelia Costa Villela , Rafael Balceiro , Rui Manuel Reis , Luiz Fernando Lopes , Anita Frisanco de Oliveira
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引用次数: 0
CSF3R MUTATIONS IN CONGENITAL NEUTROPENIA, A LONG STORY: DATA FROM THE ITALIAN REGISTRY 先天性中性粒细胞减少症的Csf3r突变,说来话长:来自意大利登记处的数据
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100399
Francesco Pegoraro , Agnese Roveta , Laura Giunti , Maria Fay Cortella , Elena Mastrodicasa , Giorgio Costagliola , Baldassarre Martire , Francesco Saettini , Maria Carla Giarratana , Antonio Marzollo , Angelica Barone , Giovanna Giagnuolo , Marta Pillon , Carlo Dufour , Marinella Veltroni , Francesca Fioredda
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引用次数: 0
Local therapy for rhabdomyosarcoma of the bladder and/or prostate without nodal or metastatic spread during the European paediatric Soft tissue sarcoma Study Group (EpSSG) RMS2005 study 在欧洲儿科软组织肉瘤研究组(EpSSG) RMS2005研究中,膀胱和/或前列腺横纹肌肉瘤的局部治疗无淋巴结或转移性扩散
Pub Date : 2025-12-01 Epub Date: 2025-07-24 DOI: 10.1016/j.ejcped.2025.100313
Naima Smeulders , Florent Guerin , Mark N. Gaze , Timothy Rogers , Sheila Terwisscha van Scheltinga , Federica De Corti , Julia Chisholm , Olga Slater , Veronique Minard-Colin , Beatrice Coppadoro , Ilaria Zanetti , Ross Craigie , Gabriela Guillen Burrieza , Patrizia Dall'Igna , Raquel Davila Fajardo , Pei S. Lim , Cyrus Chargari , Sophie Espenel , Ana L. Luis Huertas , Alexander Cho , Helene Martelli

Background

During the EpSSG RMS2005 trial, organ-sparing surgery (OSS) with brachytherapy (BT) became the local therapy (LT) of choice for selected patients with bladder-prostate rhabdomyosarcoma (BP-RMS). We compare this LT technique with surgical resection and/or external-beam radiotherapy.

Methods

Patients with BP-RMS without nodal or metastatic spread enrolled in RMS2005 were categorized by their LT, differentiating OSS from organ-depleting surgery (ODS) and BT from external-beam radiotherapy (EBRT). Progressive disease, relapse or death were considered events for progression-free survival (PFS) and all deaths for overall survival (OS).

Results

The cohort comprised 176 patients, aged 10days-21.8years (median 2.5years). Median follow-up was 6.5years (22months-12.5years): 5year-PFS was 80.3 % (95 %CI:73.6–85.5 %); 5year-OS was 90.7 % (95 %CI:85.3–94.2 %).
Patients selected for surgery alone or BT with/without OSS (BT+/-OSS) differed significantly in age, tumour size and location from those offered EBRT alone or any other surgery and radiotherapy. Nevertheless, 5year-PFS was similar for the LT groups. However, 5year-OS differed significantly, being highest in patients suitable for surgery alone (100 %; by ODS in 55 %) or BT+ /-OSS (98.1 %; 95 %CI:87.4–99.7 %). Patients with local tumour progression/relapse after EBRT failed salvage: 5year-OS was 81.8 % (95 %CI:58.5–92.8 %) for EBRT alone and 85.3 % (95 %CI:71.6–92.7 %) for surgery and radiotherapy.
Postponing LT until after chemotherapy cycle 7 did not significantly impact 5year-PFS or OS.

Conclusions

The risk of events was similar for different LT modalities; poor salvage after EBRT significantly reduced 5year-OS. Although not feasible for all, BT+ /-OSS offers an excellent prospect of cure, the best chance of organ retention while avoiding EBRT, and may be delayed for chemotherapy responsive tumours.
在EpSSG RMS2005试验中,器官保留手术(OSS)与近距离治疗(BT)成为膀胱-前列腺横纹肌肉瘤(BP-RMS)患者的局部治疗(LT)选择。我们将这种LT技术与手术切除和/或外束放疗进行比较。方法纳入RMS2005的无淋巴结或转移性扩散BP-RMS患者根据其LT进行分类,将OSS与器官消耗手术(ODS)区分开来,将BT与外束放疗(EBRT)区分开来。疾病进展、复发或死亡被认为是无进展生存期(PFS)和总生存期(OS)的所有死亡事件。结果该队列包括176例患者,年龄10天-21.8岁(中位2.5岁)。中位随访时间为6.5年(22个月-12.5年):5年pfs为80.3 %(95 %CI: 73.6-85.5 %);5年os为90.7 %(95 %CI: 85.3-94.2 %)。选择单独手术或BT合并/不合并OSS (BT+/-OSS)的患者与单独接受EBRT或任何其他手术和放疗的患者在年龄、肿瘤大小和位置上有显著差异。然而,LT组的5年pfs相似。然而,5年os差异显著,适合单独手术的患者最高(100% %;通过ODS(55% %)或BT+ /-OSS(98.1% %;95 %置信区间:87.4—-99.7 %)。EBRT挽救失败后局部肿瘤进展/复发的患者:单独EBRT的5年os为81.8 %(95 %CI: 58.5-92.8 %),手术和放疗的5年os为85.3 %(95 %CI: 71.6-92.7 %)。将LT推迟到化疗周期7之后,对5年pfs或OS没有显著影响。结论:不同肝移植方式的事件风险相似;EBRT后抢救不良显著降低了5年生存率。虽然并非对所有人都可行,但BT+ /-OSS提供了极好的治疗前景,在避免EBRT的同时保留器官的最佳机会,并且可能延迟化疗反应性肿瘤。
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引用次数: 0
Recommended phase 2 dose for abemaciclib in combination with irinotecan and temozolomide in pediatric and young adult patients with relapsed/refractory solid tumors: Results from JPCS study (Part A) abemaciclib联合伊立替康和替莫唑胺治疗复发/难治性实体瘤儿童和青年患者的推荐2期剂量:来自JPCS研究的结果(Part A)
Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.ejcped.2025.100477
Antonio Juan Ribelles , Lucas Moreno , Chitose Ogawa , Anne Thorwarth , Antonio Ruggiero , Celine Pitou , Yanhong Zhou , Molly C. Hardebeck , Holly Knoderer , Alvaro Lassaletta

Background

Abemaciclib is a cyclin-dependent kinase (CDK) 4/6 inhibitor approved for breast cancer. The CDK4/6 pathway is essential for cell cycle progression. Pediatric cancers often harbor aberrations in this pathway, potentially rendering sensitivity to CDK4/6 inhibition.

Procedure

In this multicenter, open-label, phase 1 trial (JPCS; NCT04238819), children and young adults with relapsed/refractory solid tumors were nonrandomly assigned to standard-dose irinotecan and temozolomide with abemaciclib in a 3 + 3 escalation design with 4 planned dose levels (55, 70 [starting dose], 90, and 115 mg/m2 twice daily [BID]). An expansion phase followed. The primary objective was recommended phase 2 dose (RP2D) determination for abemaciclib based on safety and pharmacokinetics. A secondary endpoint was antitumor activity.

Results

Twenty patients enrolled (median age: 12 [7−17] years) with central nervous system tumors as the most frequent diagnosis. The abemaciclib RP2D was 55 mg/m2 BID. One of 12 dose-limiting toxicity (DLT)-evaluable patients experienced a DLT (thrombocytopenia) at the RP2D. At the RP2D, the most frequent treatment-related adverse events (TRAEs) were diarrhea (92 %), neutropenia (77 %), thrombocytopenia (62 %), and anemia (62 %), and the most common grade 3/4 TRAEs were neutropenia (62 %), thrombocytopenia, leukopenia, and anemia (each 31 %). At the RP2D, patients received a median of 4 (2−35) cycles of abemaciclib, and best overall response included 1 (5 %) complete response and 6 (46 %) stable disease. Abemaciclib plasma concentrations were within the range associated with efficacy in adults.

Conclusions

Abemaciclib 55 mg/m2 BID with irinotecan and temozolomide was tolerable and showed potential antitumor activity in children and young adults with relapsed/refractory malignant solid tumors.
abemaciclib是一种被批准用于乳腺癌的细胞周期蛋白依赖性激酶(CDK) 4/6抑制剂。CDK4/6通路对细胞周期进程至关重要。儿童癌症通常在这一途径中存在异常,可能导致对CDK4/6抑制的敏感性。在这项多中心、开放标签、1期临床试验(JPCS; NCT04238819)中,复发/难治实体瘤的儿童和年轻人被非随机分配到标准剂量伊立替康和替莫唑胺联合阿贝马昔lib组,采用3 + 3递增设计,有4个计划剂量水平(55,70[起始剂量],90和115 mg/m2,每日2次[BID])。随后是扩张阶段。主要目的是基于安全性和药代动力学确定abemaciclib的推荐2期剂量(RP2D)。次要终点是抗肿瘤活性。结果入选的20例患者(中位年龄:12[7−17]岁)以中枢神经系统肿瘤为最常见的诊断。abemaciclib的RP2D为55 mg/m2 BID。12例剂量限制性毒性(DLT)可评估的患者中有1例在RP2D时出现了DLT(血小板减少症)。在RP2D中,最常见的治疗相关不良事件(TRAEs)是腹泻(92 %)、中性粒细胞减少(77 %)、血小板减少(62 %)和贫血(62 %),最常见的3/4级TRAEs是中性粒细胞减少(62 %)、血小板减少、白细胞减少和贫血(各31 %)。在RP2D中,患者接受了中位4(2 - 35)个周期的abemaciclib治疗,最佳总缓解包括1个(5 %)完全缓解和6个(46 %)疾病稳定。阿贝马昔利布的血药浓度在与成人疗效相关的范围内。结论sabemaciclib 55 mg/m2 BID联合伊立替康和替莫唑胺治疗复发/难治性恶性实体瘤的儿童和青年患者具有耐受性和潜在的抗肿瘤活性。
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引用次数: 0
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EJC paediatric oncology
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