Grapiprant_product_DataBase

Bioactivity

Grapiprant (CJ-023423) is a selective EP4 receptor antagonist whose physiological ligand is prostaglandin E2 (PGE2). Grapiprant displaces [3H]-PGE2 (1 nM) binding to dog recombinant EP4 receptor with IC50 value of 35 nM and Ki value of 24 nM. Grapiprant has the potential for osteoarthritic pain and inflammation treatment[1][2][3] .

In Vivo

Grapiprant (0-50 mg/kg; oral administration; every 24 hours; for 9 months; beagles) is safe for dogs by long-term oral administration. Efficacy of Grapiprant in the treatment of dogs with osteoarthritis needs to be evaluated in other studies[3] . Animal Model:

Name

Grapiprant

CAS

415903-37-6

Formula

C26H29N5O3S

Molar Mass

491.61

Appearance

Solid

Transport

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Reference

[1]. Vito VD, et al. Detection and quantification of the selective EP4 receptor antagonist CJ-023423 (grapiprant) in canine plasma by HPLC with spectrofluorimetric detection. J Pharm Biomed Anal. 2016 Jan 25;118:251-8. [2]. Nagahisa A, et al. Pharmacology of grapiprant, a novel EP4 antagonist: receptor binding, efficacy in a rodent postoperative pain model, and a dose estimation for controlling pain in dogs. J Vet Pharmacol Ther. 2017 Jun;40(3):285-292. [3]. Rausch-Derra LC, et al. Evaluation of the safety of long-term, daily oral administration of grapiprant, a novel drug for treatment of osteoarthritic pain and inflammation, in healthy dogs.Am J Vet Res. 2015 Oct;76(10):853-9.

PeptideDB

Grapiprant

CAS: 415903-37-6 F: C26H29N5O3S W: 491.61