Mixed phase III study results have Bioxcel Therapeutics Inc. moving ahead to complete the clinical trial while withstanding a hammering from investors. BXCL-501 (dexmedetomidine), a sublingual film being developed to treat bipolar disorders- or schizophrenia-associated agitation, produced clinically meaningful efficacy results in part 1 of the pivotal study with half of the approved dose, but the primary efficacy endpoint was not statistically significant at two hours (p=0.077). BXCL-501 separated from placebo at four hours (p=0.049).