Ezatiostat hydrochloride

Ezatiostat hydrochloride (TER199; TLK199 hydrochloride) is a tripeptide analog of glutathione and is a selective and orally active glutathione S-transferase P1-1 (GSTP1) inhibitor. Ezatiostat hydrochloride leads to JNK activation by inhibiting GSTP1. Ezatiostat hydrochloride stimulates both lymphocyte production and bone marrow progenitor proliferation. Ezatiostat hydrochloride has the potential for myelodysplastic syndrome (MDS) treatment.