Extended-Release Guanfacine Does Not Show a Large Effect on Tic Severity in Children with Chronic Tic Disorders
Murphy TK, Fernandez TV, Coffey BJ, Rahman O, Gavaletz A, Hanks CE, Tillberg CS, Gomez LI, Sukhodolsky DG, Katsovich L, Scahill L. Extended-Release Guanfacine Does Not Show a Large Effect on Tic Severity in Children with Chronic Tic Disorders. Journal Of Child And Adolescent Psychopharmacology 2017, 27: 762-770. PMID: 28723227, DOI: 10.1089/cap.2017.0024.Peer-Reviewed Original ResearchConceptsExtended-release guanfacineLack of efficacyChronic tic disorderGuanfacine groupPlacebo groupYGTSS total scoreAdverse eventsTotal scoreTic disordersYale Global Tic Severity Scale total scoreClinical Global Impressions-Improvement scaleCommon adverse eventsPlacebo-controlled trialKey secondary outcomesPrimary outcome measureLarger efficacy trialScale total scoreDry mouthSecondary outcomesPreliminary efficacyWeek 8Efficacy trialsOutcome measuresTic severityTourette's disorder