Tramsen Lars, Bochennek Konrad, Sparber-Sauer Monika, Salzmann-Manrique Emilia, Scheer Monika, Dantonello Tobias, Borkhardt Arndt, Dirksen Uta, Thorwarth Anne, Greiner Jeanette, Ebinger Martin, Weclawek-Tompol Jadwiga, Ladenstein Ruth, Ljungman Gustaf, Hallmen Erika, Lehrnbecher Thomas, Koscielniak Ewa, Klingebiel Thomas
Department of Pediatrics, University Hospital Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany.
Department for Children and Adolescents, University Hospital, Goethe-University, 60590 Frankfurt, Germany.
Cancers (Basel). 2023 Mar 30;15(7):2050. doi: 10.3390/cancers15072050.
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma (STS) in childhood. Whereas more than 90% of patients with localized low-risk RMS can be cured, metastatic RMS have a dismal outcome, with survival rates of less than 30%. The HD CWS-96 trial showed an improved outcome for patients receiving maintenance therapy after completing intensive chemotherapy. Consequently, the international clinical trials CWS-IV 2002 and CWS DOK IV 2004 on metastatic disease of STS of the Cooperative Weichteilsarkom Studiengruppe (CWS) were designed in addition to the CWS-2002P trial for localized RMS disease. All patients received a multimodal intensive treatment regimen. To maintain remission, three options were compared: long-term maintenance therapy (LTMT) versus allogeneic hematopoietic stem cell transplantation (alloHSCT) versus high-dose chemotherapy (HDCT). A total of 176 pediatric patients with a histologically confirmed diagnosis of metastatic RMS or RMS-like tumor were included. A total of 89 patients receiving LTML showed a significantly better outcome, with an event-free survival (EFS) of 41% and an overall survival (OS) of 53%, than alloHSCT ( = 21, EFS 19%, = 0.02, OS 24%, = 0.002). The outcome of LTML was slightly improved compared to HDCT ( = 13, EFS 35%, OS 34%). In conclusion, our data suggest that in patients suffering from metastatic RMS, long-term maintenance therapy is a superior strategy in terms of EFS and OS compared to alloHSCT. EFS and OS of HDCT are similar in these strategies; however, the therapeutic burden of LTMT is much lower.
横纹肌肉瘤(RMS)是儿童期最常见的软组织肉瘤(STS)。虽然超过90%的局限性低风险RMS患者可以治愈,但转移性RMS的预后很差,生存率低于30%。HD CWS - 96试验表明,完成强化化疗后接受维持治疗的患者预后有所改善。因此,除了针对局限性RMS疾病的CWS - 2002P试验外,合作软组织肉瘤研究组(CWS)还设计了关于STS转移性疾病的国际临床试验CWS - IV 2002和CWS DOK IV 2004。所有患者均接受多模式强化治疗方案。为维持缓解,比较了三种选择:长期维持治疗(LTMT)与异基因造血干细胞移植(alloHSCT)与大剂量化疗(HDCT)。总共纳入了176例经组织学确诊为转移性RMS或RMS样肿瘤的儿科患者。与alloHSCT(n = 21,无事件生存率[EFS]为19%,P = 0.02,总生存率[OS]为24%,P = 0.002)相比,总共89例接受LTML的患者显示出明显更好的预后,EFS为41%,OS为53%。与HDCT(n = 13,EFS 35%,OS 34%)相比,LTML的预后略有改善。总之,我们的数据表明,对于转移性RMS患者,就EFS和OS而言,长期维持治疗是优于alloHSCT的策略。在这些策略中,HDCT的EFS和OS相似;然而,LTMT的治疗负担要低得多。
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