Chemical Information
M.Wt |
337.44 |
Storage |
Please store the product under the recommended conditions in the Certificate of Analysis. |
Formula |
C15H23N5O2S |
CAS No |
1208319-26-9 |
Solubility |
DMSO
|
Biological Activity of Oclacitinib
Oclacitinib(PF03394197) is a potent and selective JAKs inhibitor with IC50 of 10-99 nM; not inhibit a panel of 38 non-JAK kinases (IC50 's > 1000 nM).
IC50 value: 10 nM (JAK1) [1]
Target: JAKs
in vitro: Oclacitinib inhibited the function of JAK1-dependent cytokines involved in allergy and inflammation (IL-2, IL-4, IL-6, and IL-13) as well as pruritus (IL-31) at IC50 's ranging from 36 to 249 nm. Oclacitinib had minimal effects on cytokines that did not activate the JAK1 enzyme in cells (erythropoietin, granulocyte/macrophage colony-stimulating factor, IL-12, IL-23; IC50 's > 1000 nm) [1].
in vivo: Dogs were randomized to receive either oclacitinib (0.4-0.6 mg/kg twice daily for 14 days and then once daily for up to 112 days) or an excipient-matched placebo [2].Dogs were randomized to either oclacitinib at 0.4-0.6 mg/kg orally twice daily or an excipient-matched placebo. An enhanced 10 cm visual analog scale (VAS) was used by the owners to assess the severity of pruritus from day 0 to 7 and by veterinarians to assess the severity of dermatitis on days 0 and 7. Dogs could remain on the study for 28 days [3].
[1]. Gonzales AJ, et al. Oclacitinib (APOQUEL) is a novel Janus kinase inhibitor with activity against cytokines involved in allergy. J Vet Pharmacol Ther. 2014 Aug;37(4):317-24.
[2]. Cosgrove SB, et al. A blinded, randomized, placebo-controlled trial of the efficacy and safety of the Janus kinase inhibitor oclacitinib (Apoquel) in client-owned dogs with atopic dermatitis. Vet Dermatol. 2013 Dec;24(6):587-97, e141-2.
[3]. Cosgrove SB, et al. Efficacy and safety of oclacitinib for the control of pruritus and associated skin lesions in dogs with canine allergic dermatitis. Vet Dermatol. 2013 Oct;24(5):479-e114.