mGlu4 receptor agonist 1 (compound 62) is a highly effective positive allosteric modulator of mGlu4 receptors, displaying an EC 50 of 308 nM. Additionally, it exhibits noteworthy anxiolytic and antipsychotic properties [1].
Foliglurax monohydrochloride Antiparkinsonian effect. is a highly selective and potent, brain-penetrant metabotropic glutamate receptor 4 positive allosteric modulator (mGluR4 PAM) , with an EC50 of 79 nM.
VU0410150, a pyrrylarylsulfone containing compound, has been found to be a mGluR4-positive allosteric modulator and has been evaluated as a potential drug for the treatment of Parkinson’s disease.