一种IVD试验的多中心分析性能验证,以量化固体器官移植受体中来自捐赠者的无细胞DNA
Sílvia Casas1, Narin S Tangprasertchai1, Katerina Oikonomaki2
1CareDx, Brisbane, California, USA.
HLA
|May 11, 2024
概括
使用下一代测序的捐赠者衍生的无细胞DNA (dd-cfDNA) 测试是监测器官移植排斥的可靠方法. 这种测试在实验室中可重现,并且不需要接受者基因定型来获得准确的结果.
科学领域:
- 移植免疫学 移植免疫学
- 分子诊断学 分子诊断学
- 发现生物标志物的发现.
背景情况:
- 捐赠者衍生的无细胞DNA (dd-cfDNA) 是一种有前途的非侵入性生物标志物,用于对异种移植体排斥的监测.
- 早期检测拒绝可以促进及时干预,改善移植结果.
- 在现实世界的临床环境中进行分析验证对于测试实施至关重要.
研究的目的:
- 为了验证下一代基于测序的dd-cfDNA测定在最终用户实验室环境中的分析性能.
- 评估dd-cfDNA测定在多个独立站点上的一致性,可重复性和可重复性.
- 为了确认该试验能够准确量化dd-cfDNA而无需接受者基因定型.
主要方法:
- 一项涉及三个独立实验室的多中心研究,在16个盲目样本上进行cfDNA提取和dd-cfDNA测定.
- 为所有参与站点提供了标准化的实验设计和协议.
- 网站之间和与制造商验证数据对比dd-cfDNA结果.
主要成果:
- 在<24小时内,在247个生成的库中,测试成功率高 (96.0%的首次通过率),失败率最小.
- 优异的一致性 (r2=0.9989) 和观察到和预期的dd-cfDNA结果之间的强正相关性.
- 在所有地点都显示出高重复性和可重复性 (p > 0.05),验证了制造商确定的空白,检测和量化的极限.
- 在dd-cfDNA结果中没有显著的差异,无论接受者是否进行了基因型鉴定 (p=0.951).
结论:
- 评估的dd-cfDNA测定是一种可靠,高效和可重复的方法,用于在实体器官移植接受者体内的血dd-cfDNA量化.
- 该试验在终端用户临床实验室环境中准确执行,而不需要接受者基因类型.
- 在现场实施这种dd-cfDNA测试可以提前检测全移植损伤,大大有利于患者的护理.
关键词:
在 AlloSeq 找 AlloSeq.没有NGS,没有NGS.国家统一计划 (SNP) 是一个国家统一计划.所有的移植.cfDNA DNA 的时间.dd-cfDNA 的时间.液体活检活检液体活检移植生物标志物的生物标志物移植监测,移植监测和移植监测.移植 移植 移植 移植更多相关视频
18:48In Vitro and In Vivo Assessment of T, B and Myeloid Cells Suppressive Activity and Humoral Responses from Transplant Recipients
Published on: August 12, 2017
14.4K
11:59Detection of Residual Donor Erythroid Progenitor Cells after Hematopoietic Stem Cell Transplantation for Patients with Hemoglobinopathies
Published on: September 6, 2017
7.3K
相关概念视频
Bone Marrow Sampling and Transplants
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
Tissue Transplantation
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
