Differences Between Chidamide Taken Daily and Twice a Week in Therapeutic Effect，Pharmacokinetics, Pharmacodynamics and EB Virus Activation

Currently, Chidamide is taken twice a week, this comes from cell experiment and phase I clinical trial, which showed that the de-acetylation effect of Chidamide could last for 72 hours after administration. However, daily administration of Chidamide may create a more steady Chidamide concentration, thus improve the de-acetylation effect of Chidamide, so it's necessary to compare the two different ways of administration. Current study showed that Romidepsin, a HDACI, could activate EBV during the treatment of NKTCL, whether Chidamide, as a novel HDACI, could activate EBV is still not clear, so this problem is worth to be accessed.