Olodanrigan (sodium)

Olodanrigan (EMA401) sodium is a highly selective, orally active, peripherally restricted angiotensin II type 2 receptor (AT2R) antagonist. Olodanrigan sodium is under development as a neuropathic pain therapeutic agent. Olodanrigan sodium analgesic action appears to involve inhibition of augmented AngII/AT2R induced p38 and p42/p44 MAPK activation, and hence inhibition of DRG neuron hyperexcitability and sprouting of DRG neurons[1][2][3][4].

[1]Rice AS et al. EMA401, an orally administered highly selective angiotensin II type 2 receptor antagonist, as a novel treatment for postherpetic neuralgia: a randomised, double-blind, placebo-controlled phase 2 clinical trial. Lancet. 2014 May 10;383(9929):1637-47.|[2]Anand U et al. Mechanisms underlying clinical efficacy of Angiotensin II type 2 receptor (AT2R) antagonist EMA401 in neuropathic pain: clinical tissue and in vitro studies. Mol Pain. 2015 Jun 26;11:38.|[3]Suguru Koyama,et al. An Electroencephalography Bioassay for Preclinical Testing of Analgesic Efficacy.