2502965-92-4

(R)-Vorbipiprant ((R)-CR6086) is an orally active antagonist for prostaglandin E2 receptor 4 (EP4) with Ki of 16.6 nM for human EP4. (R)-Vorbipiprant inhibits PGE2 (HY-101952)-induced cAMP production with an IC50 of 22 nM. (R)-Vorbipiprant exhibits immunomodulatory and anti-angiogenic activities, and ameliorates the collagen-induced arthritis in mice[1].

hEP4: 16.6 nM (Ki)

[1] Caselli G, et al., Pharmacological characterisation of CR6086, a potent prostaglandin E2 receptor 4 antagonist, as a new potential disease-modifying anti-rheumatic drug. Arthritis Res Ther. 2018 Mar 1;20(1):39. DOI:10.1186/s13075-018-1537-8