Norbert Galldiks, Jan-Michael Werner, Isabelle Stetter, Hannah C Puhr, Thomas S Nakuz, Gabriele Stoffels, Nathalie L Albert, Karl-Josef Langen, Philipp Lohmann, Matthias Preusser
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引用次数: 0
摘要
3期INDIGO试验表明,异柠檬酸脱氢酶(IDH)抑制剂vorasidenib显著延长了CNS WHO 2级胶质瘤患者的无进展生存期和延迟干预。然而,常规MRI显示的反应有限,只有11%的患者有客观反应。研究表明,放射标记氨基酸的连续PET成像,如O -(2-[18 F]-氟乙基)- l -酪氨酸(FET) PET,可能比MRI更早、更有信息地评估治疗反应。在FET PET的初始经验中,5名患者中有3名对vorasidenib表现出代谢反应。这凸显了FET PET指导决策的潜力,尽管需要进一步的试验来证实结果的益处。
Evaluation of early metabolic changes following vorasidenib using FET PET in patients with IDH-mutant gliomas.
The phase-3 INDIGO trial demonstrated that the isocitrate dehydrogenase (IDH) inhibitor vorasidenib significantly prolonged progression-free survival and delayed intervention in patients with CNS WHO grade 2 gliomas. However, conventional MRI showed limited response, with only 11% of patients having objective responses. Studies suggest that serial PET imaging with radiolabeled amino acids, such as O -(2-[18 F]-fluoroethyl)-L-tyrosine (FET) PET, may provide earlier and more informative assessments of treatment response than MRI. In an initial experience with FET PET, 3 out of 5 patients showed metabolic response to vorasidenib. This highlights FET PET's potential to guide decision-making, though further trials are needed to confirm outcome benefits.