Umbralisib is well tolerated and has activity against relapsed or refractory hematologic cancers.

中文翻译：

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与以前的抑制剂相比，Umbralisib抑制PI3Kδ的毒性更小

Umbralisib具有良好的耐受性，并具有针对复发性或难治性血液学癌症的活性。