Epacadostat is a selective IDO1 inhibitor shown to promote anti-tumor immune responses in preclinical models, however it has failed in a Phase III clinical trial for treating metastatic melanoma. Here the authors design a sphingomyelin-derived nanovesicle system for epacadostat delivery with improved pharmacokinetics and anti-tumor activity when combined with a PD-1 inhibitor in melanoma preclinical models.
- Zhiren Wang
- Wenpan Li
- Jianqin Lu