Live feed08:30:00·2dPRReleasevia QuantisnowVistagen Receives FDA "Study May Proceed" Letter Under its Refisolone IND Application, Enabling Further Phase 2 Clinical Development for the Treatment of Vasomotor Symptoms (Hot Flashes) due to MenopauseByQuantisnow·Wall Street's wire, on your screen.VTGN· Vistagen Therapeutics Inc.Health Care