Featured Publications
Comparative efficacy, tolerability, and acceptability of pharmacological interventions for the treatment of children, adolescents, and young adults with Tourette's syndrome: a systematic review and network meta-analysis
Farhat L, Behling E, Landeros-Weisenberger A, Levine J, Macul Ferreira de Barros P, Wang Z, Bloch M. Comparative efficacy, tolerability, and acceptability of pharmacological interventions for the treatment of children, adolescents, and young adults with Tourette's syndrome: a systematic review and network meta-analysis. The Lancet Child & Adolescent Health 2022, 7: 112-126. PMID: 36528030, DOI: 10.1016/s2352-4642(22)00316-9.Peer-Reviewed Original ResearchConceptsSecond-generation antipsychotic drugsMedication categoriesAntipsychotic drugsModerate certaintyIndividual medicationsTourette syndromePharmacological interventionsLow certaintyWHO International Clinical Trials Registry PlatformInternational Clinical Trials Registry PlatformSystematic reviewClinical Trials Registry PlatformChoice of medicationCochrane Central RegisterNetwork meta-analysis frameworkTrials Registry PlatformRandom-effects networkTerms of tolerabilityCertainty of evidenceClinical practice guidelinesComorbid attention deficit hyperactivity disorderStandardised mean differenceTreatment of childrenAttention deficit hyperactivity disorderWeb of ScienceThe effects of stimulant dose and dosing strategy on treatment outcomes in attention-deficit/hyperactivity disorder in children and adolescents: a meta-analysis
Farhat LC, Flores JM, Behling E, Avila-Quintero VJ, Lombroso A, Cortese S, Polanczyk GV, Bloch MH. The effects of stimulant dose and dosing strategy on treatment outcomes in attention-deficit/hyperactivity disorder in children and adolescents: a meta-analysis. Molecular Psychiatry 2022, 27: 1562-1572. PMID: 35027679, DOI: 10.1038/s41380-021-01391-9.Peer-Reviewed Original ResearchConceptsFixed-dose trialAttention-deficit/hyperactivity disorderDose-limiting adverse eventsChildren/adolescentsAdverse eventsFlexible-dose trialTerms of efficacyClinical practiceHigh dosesFlexible dose designIntolerable adverse eventsHyperactivity disorderIncremental benefitLikelihood of discontinuationADHD symptomsLarge systematic reviewSchool-aged children/adolescentsFlexible titrationPotential long-term effectsSymptom controlTreatment discontinuationClinical outcomesStimulant dosesDaily dosesClinical guidelinesEfficacy of Intravenous Ketamine in Adolescent Treatment-Resistant Depression: A Randomized Midazolam-Controlled Trial
Dwyer JB, Landeros-Weisenberger A, Johnson JA, Londono Tobon A, Flores JM, Nasir M, Couloures K, Sanacora G, Bloch MH. Efficacy of Intravenous Ketamine in Adolescent Treatment-Resistant Depression: A Randomized Midazolam-Controlled Trial. American Journal Of Psychiatry 2021, 178: 352-362. PMID: 33653121, DOI: 10.1176/appi.ajp.2020.20010018.Peer-Reviewed Original ResearchConceptsTreatment-resistant depressionDepression Rating ScaleIntravenous ketamineClinical trialsAdolescent treatment-resistant depressionAdult treatment-resistant depressionPlacebo-controlled clinical trialSignificant short-term efficacySerious adverse eventsPrimary outcome measureSingle intravenous infusionChildren's Depression Rating ScaleCrossover clinical trialShort-term efficacyMajor depressive disorderSingle ketamine infusionSymptoms 24 hoursLater time pointsKetamine’s safetyAdverse eventsAntidepressant medicationKetamine infusionPediatric populationSignificant morbidityIntravenous infusionPharmacological and behavioral treatment for trichotillomania: An updated systematic review with meta‐analysis
Farhat LC, Olfson E, Nasir M, Levine JLS, Li F, Miguel EC, Bloch MH. Pharmacological and behavioral treatment for trichotillomania: An updated systematic review with meta‐analysis. Depression And Anxiety 2020, 37: 715-727. PMID: 32390221, DOI: 10.1002/da.23028.Peer-Reviewed Original ResearchConceptsClinical trialsSingle randomized clinical trialTTM symptomsFirst-line medicationRandomized clinical trialsStrong evidence baseLarge treatment effectsHair pulling disorderEffective medicationsAvailable agentsPharmacological agentsAdditional trialsDrug AdministrationPsychiatric conditionsSystematic reviewN-acetylcysteineBehavioral treatmentBehavioral therapyEvidence baseTrichotillomaniaTrialsRelative efficacyTreatment effectsMedicationsSymptomsAnnual Research Review: Defining and treating pediatric treatment‐resistant depression
Dwyer JB, Stringaris A, Brent DA, Bloch MH. Annual Research Review: Defining and treating pediatric treatment‐resistant depression. Journal Of Child Psychology And Psychiatry 2020, 61: 312-332. PMID: 32020643, PMCID: PMC8314167, DOI: 10.1111/jcpp.13202.Peer-Reviewed Original ResearchConceptsTreatment-resistant depressionMajor depressive disorderAdolescent treatment-resistant depressionRisk factorsAdolescent major depressive disorderPsychotherapy treatment trialSecond-line treatmentSignificant risk factorsPediatric clinical trialsSecond leading causeSignificant health problemEvidence-based psychotherapiesCent of adolescentsMedication switchAdequate medicationSubstantial morbiditySymptom improvementInterventional treatmentMedication augmentationTreatment trialsCare treatmentClinical trialsDepressive disorderDiagnostic difficultiesLeading causeThe Effect of a Single Dose of Intravenous Ketamine on Suicidal Ideation: A Systematic Review and Individual Participant Data Meta-Analysis
Wilkinson ST, Ballard ED, Bloch MH, Mathew SJ, Murrough JW, Feder A, Sos P, Wang G, Zarate CA, Sanacora G. The Effect of a Single Dose of Intravenous Ketamine on Suicidal Ideation: A Systematic Review and Individual Participant Data Meta-Analysis. American Journal Of Psychiatry 2017, 175: 150-158. PMID: 28969441, PMCID: PMC5794524, DOI: 10.1176/appi.ajp.2017.17040472.Peer-Reviewed Original ResearchConceptsIndividual participant dataLong-term safetySuicidal ideationKetamine effectsSingle doseParticipant dataSuicide itemOutcome measuresSystematic reviewIndividual Participant Data Meta-AnalysisLimited treatment optionsPrimary outcome measureSelf-reported outcome measuresData Meta-AnalysisIntravenous ketaminePublic health crisisKetamine administrationTreatment optionsQIDS-SRDepressed patientsDepressive symptomsIntervention studiesKetamineMeta-AnalysisSuicidal thoughtsMeta-Analysis of the Symptom Structure of Obsessive-Compulsive Disorder
Bloch M, Landeros-Weisenberger A, Rosario M, Pittenger C, Leckman J. Meta-Analysis of the Symptom Structure of Obsessive-Compulsive Disorder. FOCUS The Journal Of Lifelong Learning In Psychiatry 2015, 13: 232-243. DOI: 10.1176/appi.focus.130209.Peer-Reviewed Original ResearchMeta-analysis of the dose-response relationship of SSRI in obsessive-compulsive disorder
Bloch MH, McGuire J, Landeros-Weisenberger A, Leckman JF, Pittenger C. Meta-analysis of the dose-response relationship of SSRI in obsessive-compulsive disorder. Molecular Psychiatry 2009, 15: 850-855. PMID: 19468281, PMCID: PMC2888928, DOI: 10.1038/mp.2009.50.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsY-BOCS scoresSerotonin reuptake inhibitorsObsessive-compulsive disorderHigh dosesReuptake inhibitorsTreatment respondersDose of SSRIsTreatment efficacyDouble-blind placebo-controlled clinical trialGreater side effect burdenPlacebo-controlled clinical trialSide effect burdenAbsolute risk differenceTreatment of adultsGreater treatment efficacyMajor depressive disorderImproved treatment efficacyTreatment of OCDDose-response relationshipRevMan 4.2.8Clinical trialsDepressive disorderCause dropoutsMean changeMeta-Analysis of the Symptom Structure of Obsessive-Compulsive Disorder
Bloch MH, Landeros-Weisenberger A, Rosario MC, Pittenger C, Leckman JF. Meta-Analysis of the Symptom Structure of Obsessive-Compulsive Disorder. American Journal Of Psychiatry 2008, 165: 1532-1542. PMID: 18923068, PMCID: PMC3972003, DOI: 10.1176/appi.ajp.2008.08020320.Peer-Reviewed Original ResearchMeta-Analysis: Treatment of Attention-Deficit/Hyperactivity Disorder in Children With Comorbid Tic Disorders
Bloch MH, Panza KE, Landeros-Weisenberger A, Leckman JF. Meta-Analysis: Treatment of Attention-Deficit/Hyperactivity Disorder in Children With Comorbid Tic Disorders. Journal Of The American Academy Of Child & Adolescent Psychiatry 2009, 48: 884-893. PMID: 19625978, PMCID: PMC3943246, DOI: 10.1097/chi.0b013e3181b26e9f.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic alpha-AgonistsAtomoxetine HydrochlorideAttention Deficit Disorder with HyperactivityChildComorbidityContraindicationsDose-Response Relationship, DrugDouble-Blind MethodHumansMethylphenidatePropylaminesPsychotropic DrugsRandomized Controlled Trials as TopicTic DisordersTourette SyndromeConceptsAlpha-2 agonistsAttention-deficit/hyperactivity disorderTic symptomsComorbid ticsSupratherapeutic dosesTic disordersADHD symptomsTreatment of ADHDHyperactivity disorderPlacebo-controlled trialEfficacy of medicationsStandardized mean differenceEvidence-based treatmentsHalf of childrenComorbid tic disordersPrimary outcomeDifferent medicationsPsychostimulant medicationPubMed searchTic severityTourette syndromePackage insertsDrug AdministrationAtomoxetineSymptomsA systematic review: antipsychotic augmentation with treatment refractory obsessive-compulsive disorder
Bloch MH, Landeros-Weisenberger A, Kelmendi B, Coric V, Bracken MB, Leckman JF. A systematic review: antipsychotic augmentation with treatment refractory obsessive-compulsive disorder. Molecular Psychiatry 2006, 11: 622-632. PMID: 16585942, DOI: 10.1038/sj.mp.4001823.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntipsychotic AgentsBasal Ganglia DiseasesBenzodiazepinesComorbidityDepressive DisorderDibenzothiazepinesDouble-Blind MethodDrug ResistanceDrug Therapy, CombinationHaloperidolHumansMiddle AgedObsessive-Compulsive DisorderOlanzapinePatient DropoutsQuetiapine FumarateRandomized Controlled Trials as TopicRisperidoneSelective Serotonin Reuptake InhibitorsTic DisordersTreatment OutcomeConceptsSerotonin reuptake inhibitorsAntipsychotic augmentationAbsolute risk differenceObsessive-compulsive disorderComorbid ticsOCD patientsTreatment responseSystematic reviewTreatment-refractory obsessive-compulsive disorderTreatment-refractory OCD patientsRefractory obsessive-compulsive disorderDouble-blind trialEfficacy of quetiapineTreatment-refractory OCDCochrane Central RegisterMeaningful treatment responseProportion of subjectsEfficacy of haloperidolRandomized control trialObsessive-compulsive disorder patientsSRI monotherapyAdequate trialCentral RegisterControlled TrialsReuptake inhibitorsTreatment Outcomes With Licensed and Unlicensed Stimulant Doses for Adults With Attention-Deficit/Hyperactivity Disorder
Farhat L, Flores J, Avila-Quintero V, Polanczyk G, Cipriani A, Furukawa T, Bloch M, Cortese S. Treatment Outcomes With Licensed and Unlicensed Stimulant Doses for Adults With Attention-Deficit/Hyperactivity Disorder. JAMA Psychiatry 2024, 81: 157-166. PMID: 37878348, PMCID: PMC10600727, DOI: 10.1001/jamapsychiatry.2023.3985.Peer-Reviewed Original ResearchAttention-deficit/hyperactivity disorderLicensed dosesDose-response curveStimulant dosesClinical trialsTreatment outcomesRisk benefitHyperactivity disorderReduction of symptomsDrug Administration recommendationsAdverse eventsDose escalationLanguage restrictionsAdministration recommendationsUS FoodSymptomsDosesAdditional riskData extractionAdditional reductionADHD symptomsAdultsGreater reductionStimulantsRiskEfficacy of Intravenous Ketamine in Adolescent Treatment-Resistant Depression: A Randomized Midazolam-Controlled Trial
Dwyer J, Landeros-Weisenberger A, Johnson J, Londono Tobon A, Flores J, Nasir M, Couloures K, Sanacora G, Bloch M. Efficacy of Intravenous Ketamine in Adolescent Treatment-Resistant Depression: A Randomized Midazolam-Controlled Trial. FOCUS The Journal Of Lifelong Learning In Psychiatry 2022, 20: 241-251. PMID: 37153136, PMCID: PMC10153503, DOI: 10.1176/appi.focus.22020004.Peer-Reviewed Original ResearchTreatment-resistant depressionDepression Rating ScaleIntravenous ketamineClinical trialsAdolescent treatment-resistant depressionAdult treatment-resistant depressionPlacebo-controlled clinical trialSignificant short-term efficacySerious adverse eventsPrimary outcome measureSingle intravenous infusionChildren's Depression Rating ScaleCrossover clinical trialShort-term efficacyMajor depressive disorderSingle ketamine infusionSymptoms 24 hoursLater time pointsKetamine’s safetyAdverse eventsAntidepressant medicationKetamine infusionPediatric populationSignificant morbidityIntravenous infusion
2025
Chapter 53 Tourette syndrome
Abdallah S, Fasching L, Brady M, Bloch M, Lombroso P, Vaccarino F, Fernandez T. Chapter 53 Tourette syndrome. 2025, 951-962. DOI: 10.1016/b978-0-443-19176-3.00044-3.Peer-Reviewed Original ResearchTourette syndromeCortico-striatal-thalamo-cortical circuitryStriatal volume lossAdult TS patientsNeuroimaging studiesNeuropsychiatric disordersDopaminergic receptorsVocal ticsStriatal interneuronsClasses of striatal interneuronsBasal gangliaMetabolic hypofunctionEnvironmental risk factorsTS patientsAmeliorate symptomsGenetic contributionMolecular abnormalitiesPharmacological strategiesCircuitryAffecting 1Animal modelsRisk factorsInterneuronal circuitryVolume lossAbnormalities
2024
Systematic Review and Meta-Analysis: Placebo Response in Randomized Controlled Trials of Tourette Disorder Medications
de Barros P, Farhat L, Behling E, Nasir M, Landeros-Weisenberger A, Bloch M. Systematic Review and Meta-Analysis: Placebo Response in Randomized Controlled Trials of Tourette Disorder Medications. Journal Of The American Academy Of Child & Adolescent Psychiatry 2024 PMID: 39505141, DOI: 10.1016/j.jaac.2024.10.011.Peer-Reviewed Original ResearchDrug-placebo differencesMagnitude of placebo responseTourette's disorderPlacebo responseStandardized mean changeRandomized controlled trialsDrug responsePlacebo-controlled randomized controlled trialsDrug placeboMeta-analysisPsychiatry conditionsClinical-researchDisorder medicationsRandom-effects meta-analysisBetween-groupStandardized mean differencePharmacological interventionsStudy-level characteristicsWithin-groupPlaceboStudy-level factorsMean changeWeb of ScienceControlled trialsMean differencePharmacological Interventions for Attention-Deficit/Hyperactivity Disorder in Children and Adolescents with Tourette Disorder: A Systematic Review and Network Meta-Analysis
Farhat L, Behling E, Landeros-Weisenberger A, de Barros P, Polanczyk G, Cortese S, Bloch M. Pharmacological Interventions for Attention-Deficit/Hyperactivity Disorder in Children and Adolescents with Tourette Disorder: A Systematic Review and Network Meta-Analysis. Journal Of Child And Adolescent Psychopharmacology 2024, 34: 373-382. PMID: 39320340, DOI: 10.1089/cap.2024.0049.Peer-Reviewed Original ResearchADHD symptomsAttention-deficit/hyperactivity disorderTic severityTourette's disorderAttention-deficit/hyperactivityRandomized controlled trialsA2 agonistPharmacological interventionsADHD symptom severityIncreased tic severityPersistent tic disordersNetwork meta-analysisStandardized mean differencePairs of medicationsEfficacy of pharmacological interventionsWorsen ticsRandom-effects network meta-analysisSymptom severityTic disordersADHDMeta-analysisNetwork meta-analysis frameworkCertainty of evidenceDisordersNetwork meta-analysesRacial Implicit Associations in Child Psychiatry
Malison K, Avila-Quintero V, Al-Mateen C, Flores J, Landeros-Weisenberger A, Njoroge W, Novins D, Robles-Ramamurthy B, Taylor J, Bloch M, Tobón A. Racial Implicit Associations in Child Psychiatry. Journal Of The American Academy Of Child & Adolescent Psychiatry 2024 PMID: 38823476, DOI: 10.1016/j.jaac.2024.04.013.Peer-Reviewed Original ResearchImplicit Association TestRace Implicit Association TestRecruitment of human participantsExternalizing behavior problemsPaper self-identifiesImplicit associationsChildren faceBehavior problemsChild psychiatryAbstractText Label="DIVERSITY &Negatively valenced wordsExternal wordHuman participantsValenced wordsExternalizing disordersParticipating psychiatristsPsychiatric cliniciansNegative valenceNegative wordsPsychiatristsAssociation TestPsychiatryInvestigate psychiatristsReduce racial inequalityDemographic predictorsAdolescent Eating Disorders are Increasing and We Need to Do More
Kamody R, Bloch M. Adolescent Eating Disorders are Increasing and We Need to Do More. Journal Of The American Academy Of Child & Adolescent Psychiatry 2024 PMID: 38777314, DOI: 10.1016/j.jaac.2024.05.012.Peer-Reviewed Original ResearchThe Effects of Shaoma Zhijing Granules and its Main Components on Tourette Syndrome
Zhao Q, Hu Y, Yan Y, Song X, Yu J, Wang W, Zhou S, Su X, Bloch M, Leckman J, Chen Y, Sun H. The Effects of Shaoma Zhijing Granules and its Main Components on Tourette Syndrome. Phytomedicine 2024, 129: 155686. PMID: 38759346, DOI: 10.1016/j.phymed.2024.155686.Peer-Reviewed Original ResearchTourette syndromeChina National Knowledge Infrastructure (CNKI) databasesNerve damageRepair of nerve damageClinical trialsEffective treatmentImprove sleep disordersNeurotransmitter imbalanceSleep disordersReducing neuroinflammationSyndromeComprehensive searchClinical applicationChinese medicine compoundObsessive-compulsive disorderExploring Predictors of Ketamine Response in Adolescent Treatment-Resistant Depression
Lineham A, Avila-Quintero V, Bloch M, Dwyer J. Exploring Predictors of Ketamine Response in Adolescent Treatment-Resistant Depression. Journal Of Child And Adolescent Psychopharmacology 2024, 34: 73-79. PMID: 38170185, PMCID: PMC11262580, DOI: 10.1089/cap.2023.0047.Peer-Reviewed Original ResearchDepression symptom improvementTreatment-resistant depressionChildren's Depression Rating ScaleReuptake inhibitor medicationsDepression Rating ScaleSymptom improvementAntidepressant responseInhibitor medicationKetamine responseAdolescent treatment-resistant depressionRapid-acting antidepressant agentsSelective serotonin reuptake inhibitor medicationsSerotonin reuptake inhibitor medicationsKetamine’s antidepressant responseCurrent depressive episodeSevere depressive symptomsGreater symptom improvementAttention-deficit/hyperactivity disorder diagnosisFuture therapeutic useAntidepressant medicationMedication trialsCrossover trialAntidepressant agentsClinical variablesDepressive episode