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Molecular measurable residual disease by immunoglobulin gene rearrangements on circulating tumor DNA predicts outcome in diffuse large B-cell lymphoma.
Haematologica ( IF 8.2 ) Pub Date : 2024-12-19 , DOI: 10.3324/haematol.2024.286331 Roberta Soscia,Giovanni Manfredi Assanto,Irene Della Starza,Riccardo Moia,Donatella Talotta,Vittorio Bellomarino,Teresa Bellissimo,Marco Antonacci,Luigi Petrucci,Gianluca Gaidano,Anna Guarini,Maurizio Martelli,Alice Di Rocco,Robin Foà,Ilaria Del Giudice
Haematologica ( IF 8.2 ) Pub Date : 2024-12-19 , DOI: 10.3324/haematol.2024.286331 Roberta Soscia,Giovanni Manfredi Assanto,Irene Della Starza,Riccardo Moia,Donatella Talotta,Vittorio Bellomarino,Teresa Bellissimo,Marco Antonacci,Luigi Petrucci,Gianluca Gaidano,Anna Guarini,Maurizio Martelli,Alice Di Rocco,Robin Foà,Ilaria Del Giudice
In diffuse large B-cell lymphoma (DLBCL) treatment response relies on imaging. We investigated the potential value of molecular measurable residual disease (MRD) on circulating tumor DNA (ctDNA) to predict patient outcomes. We retrospectively evaluated 73 patients. Analyses were conducted on 57 tumor biopsies, based on sample availability. At baseline, next-generation sequencing was used to detect clonal immunoglobulin (IG) gene rearrangements on tumor biopsies and ctDNA. MRD monitoring was applied by tracking the IG clones in ctDNA samples collected during treatment (interim) and at the end of treatment (EOT). MRD results were correlated with clinical data and radiologic disease assessment. Before treatment, clonal IG were found in 91.2% (52/57) of tumor biopsies and in 93.2% (68/73) of ctDNA samples. In paired samples, the same clonotype was found in 69.2% (36/52) of cases. At the interim analysis, ctDNA MRD was negative in 32/45 evaluable patients and positive in 13/45, correlating significantly with progression-free survival (PFS) (78.1% MRD- vs 30.8% MRD+; p.
中文翻译:
通过循环肿瘤 DNA 上的免疫球蛋白基因重排进行分子可测量的残留病灶可预测弥漫性大 B 细胞淋巴瘤的预后。
在弥漫性大 B 细胞淋巴瘤 (DLBCL) 中,治疗反应依赖于影像学检查。我们研究了分子可测量残留病 (MRD) 对循环肿瘤 DNA (ctDNA) 预测患者预后的潜在价值。我们回顾性评估了 73 例患者。根据样本可用性对 57 例肿瘤活检进行了分析。基线时,使用下一代测序检测肿瘤活检和 ctDNA 上的克隆免疫球蛋白 (IG) 基因重排。通过跟踪治疗期间 (interim) 和治疗结束时 (EOT) 收集的 ctDNA 样本中的 IG 克隆来应用 MRD 监测。MRD 结果与临床资料和放射学疾病评估相关。治疗前,在 91.2% (52/57) 的肿瘤活检和 93.2% (68/73) 的 ctDNA 样本中发现克隆性 IG。在配对样本中,在 69.2% (36/52) 的病例中发现了相同的克隆型。在中期分析中,32/45 名可评估患者的 ctDNA MRD 为阴性,13/45 为阳性,与无进展生存期 (PFS) 显著相关 (78.1% MRD- vs 30.8% MRD+;
更新日期:2024-12-19
中文翻译:
通过循环肿瘤 DNA 上的免疫球蛋白基因重排进行分子可测量的残留病灶可预测弥漫性大 B 细胞淋巴瘤的预后。
在弥漫性大 B 细胞淋巴瘤 (DLBCL) 中,治疗反应依赖于影像学检查。我们研究了分子可测量残留病 (MRD) 对循环肿瘤 DNA (ctDNA) 预测患者预后的潜在价值。我们回顾性评估了 73 例患者。根据样本可用性对 57 例肿瘤活检进行了分析。基线时,使用下一代测序检测肿瘤活检和 ctDNA 上的克隆免疫球蛋白 (IG) 基因重排。通过跟踪治疗期间 (interim) 和治疗结束时 (EOT) 收集的 ctDNA 样本中的 IG 克隆来应用 MRD 监测。MRD 结果与临床资料和放射学疾病评估相关。治疗前,在 91.2% (52/57) 的肿瘤活检和 93.2% (68/73) 的 ctDNA 样本中发现克隆性 IG。在配对样本中,在 69.2% (36/52) 的病例中发现了相同的克隆型。在中期分析中,32/45 名可评估患者的 ctDNA MRD 为阴性,13/45 为阳性,与无进展生存期 (PFS) 显著相关 (78.1% MRD- vs 30.8% MRD+;