埃克塞梅斯坦与安德罗斯二免疫测试的分析干扰
Marina Giralt1,2, Roser Ferrer1,2, Noelia Díaz-Troyano1,2
1Department of Biochemistry, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
Annals of laboratory medicine
|March 21, 2025
概括
用于乳腺癌的埃克塞梅斯坦,由于交叉反应性,在免疫测试中错误地提高了androstenedione测量值. 这种分析干扰可能会导致患者不必要的担忧和进一步的测试.
科学领域:
- 临床化学 临床化学
- 内分泌学 在内分泌学.
- 药品分析 药品分析
背景情况:
- 埃克塞梅斯坦是一种芳香酶抑制剂,用于乳腺癌治疗.
- 它与性类固醇具有结构上的相似之处.
- 这种相似性引发了人们对临床实验室测量的潜在干扰的担忧.
研究的目的:
- 为了研究在测量性类固醇中对埃克塞梅斯坦的交叉反应性.
- 评估埃克塞梅斯坦对各种免疫测试平台的影响.
主要方法:
- 多中心研究测量安德罗二,,雌激素,孕和17-基孕的血清从妇女在埃克塞梅斯坦治疗.
- 液态染色体质谱法 (LC-MS) 的结果与化学发光免疫测试,ELISA和放射性免疫测试的结果进行比较.
- 在实验室中评估埃克塞梅斯坦和17-埃克塞梅斯坦的交叉反应性.
主要成果:
- 在所有评估的免疫试验中,在接受埃克塞梅斯坦治疗的患者中观察到错误地升高的androstenedione水平,与血清埃克塞梅斯坦水平相关.
- 实验室内实验证实了埃克塞梅斯坦的交叉反应性是安德罗二干扰的原因.
- 一个免疫试验显示,在20%的患者中,雌激素水平错误地升高,但这并未被证实为埃克塞梅斯坦的交叉反应性.
结论:
- 埃克塞梅斯坦与androstenedione免疫测试有显著的交叉反应,导致治疗患者的错误升高结果.
- 这种分析干扰可能会导致不必要的临床担忧,并可能导致广泛的诊断工作.
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