Cyclic adenosine-inosine monophosphate (cAIMP, CL-592) is an experimental antiviral drug. It is the best studied of a range of related analogues which act as agonists of the Stimulator of interferon genes (STING) receptor which mediates interferon production by the immune system. It shows broad spectrum antiviral activity against a range of viruses including SARS-CoV-2 and enterovirus 68, and in studies on mice prevented the development of arthritis following infection with Chikungunya virus.[1][2][3][4]
^Lioux T, Mauny MA, Lamoureux A, Bascoul N, Hays M, Vernejoul F, et al. (November 2016). "Design, Synthesis, and Biological Evaluation of Novel Cyclic Adenosine-Inosine Monophosphate (cAIMP) Analogs That Activate Stimulator of Interferon Genes (STING)". Journal of Medicinal Chemistry. 59 (22): 10253–10267. doi:10.1021/acs.jmedchem.6b01300. PMID27783523.