Pharmaceutical USA-based Forest Laboratories and Hungary headquartered partner Gedeon Richter recently announced top-line results from a Phase II placebo and positive comparator-controlled, parallel-arm, double-blind, dose-response clinical trial of the novel, investigational NR2B-selective NMDA (N-methyl D-aspartate) receptor antagonist, radiprodil (RGH-896), for the treatment of neuropathic pain associated with diabetic peripheral neuropathy (DPNP). Treatment with radiprodil did not show statistically significant or clinically meaningful reductions in mean daily pain scores, the primary endpoint, compared to placebo for any of the dosages studied. 2 July 2010