MRS5698 is a high affinity and selective agonist of A3 adenosine receptor (Ki ~ 3 nM) protects against chronicneuropathicpain. MRS5698 displays >1000-fold selectivity over A1 and A2A adenosine receptors
Lexanopadol (GRT6006) is a potent ORL-1 agonist (opioid receptor-like-1), suitable for the treatment of moderate to severe chronicpain, including neuropathicpain.
Dilmapimod tosylate is a potent p38 mitogen-activated protein kinase (MAPK) inhibitor. It was investigated for its anti-inflammatory effect in non-head injury trauma patients at risk for developing acute respiratory distress syndrome. IL-1β was identified as a gene regulated by dilmapimod that could influence c-reactive protein levels. Dilmapimod had been in phase III clinical trials by GlaxoSmithKline for the treatment of rheumatoid arthritis, neuropathicpain, coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD).
A-317491 is an effective selective non-nucleotide antagonist of P2X3 and P2X2 3 receptors, which reverses inflammatory mechanical hyperalgesia and relieves chronic inflammation and neuropathicpain in rats by acting on peripheral receptors.
Biphalin is a synthetic opioid octapeptide with a palindromic sequence that has high analgesic activity. Biphalin shows a potent affinity for μ and δ-opioid receptors and a significant to κ-receptor.