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 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 inhibitors
2023
Protocol description for a randomized controlled trial of fMRI neurofeedback for tics in adolescents with Tourette Syndrome
Awasthi J, Harris-Starling C, Kalvin C, Pittman B, Park H, Bloch M, Fernandez T, Sukhodolsky D, Hampson M. Protocol description for a randomized controlled trial of fMRI neurofeedback for tics in adolescents with Tourette Syndrome. Psychiatry Research Neuroimaging 2023, 336: 111692. PMID: 37673711, PMCID: PMC10722977, DOI: 10.1016/j.pscychresns.2023.111692.Peer-Reviewed Case Reports and Technical NotesConceptsTourette syndromeFunctional magnetic resonance imagingStudy protocolChronic tic disorderSupplementary motor areaLower functional connectivityMagnetic resonance imagingResearch study protocolLarge trialsClinical trialsTic disordersMotor areaBrain areasControl groupResonance imagingBrain regionsNew trialsFunctional connectivityNeurofeedback interventionFMRI neurofeedbackNF protocolTrialsNF studiesSyndromeInterventionEditorial: Developmental considerations in addressing the earlier age of severe eating disorder onset
Kamody R, Bloch M. Editorial: Developmental considerations in addressing the earlier age of severe eating disorder onset. Journal Of Child Psychology And Psychiatry 2023, 64: 1101-1103. PMID: 37408467, DOI: 10.1111/jcpp.13852.Peer-Reviewed Original ResearchConceptsMental health concernsHealth concernYouth mental health careMental health careCOVID-19 pandemicImpact of ageYouth mental healthSevere presentationPediatric hospitalizationsDisorder onsetAge of childrenDisorder presentationsMental healthHealth careHospitalizationAgeEarly ageCareDisordersDevelopmental considerationsOnsetPresentationPandemicDeleterious impactThe genetic epidemiology of obsessive-compulsive disorder: a systematic review and meta-analysis
Blanco-Vieira T, Radua J, Marcelino L, Bloch M, Mataix-Cols D, do Rosário M. The genetic epidemiology of obsessive-compulsive disorder: a systematic review and meta-analysis. Translational Psychiatry 2023, 13: 230. PMID: 37380645, PMCID: PMC10307810, DOI: 10.1038/s41398-023-02433-2.Peer-Reviewed Original ResearchConceptsFirst-degree relativesSystematic reviewPopulation-based studyGenetic epidemiologyRelatives of childrenOutcomes of interestFirst systematic reviewObsessive-compulsive disorderRecurrence rateFamilial recurrence rateMedical recordsOpenGrey databasesControl groupControl probandsFamilial disorderAdolescent probandsStudy designEpidemiologyTwin study designOCD diagnosisIndependent researchersDizygotic twinsTwin pairsDisordersOCDPrevalence and gender distribution of excoriation (skin-picking) disorder: A systematic review and meta-analysis
Farhat L, Reid M, Bloch M, Olfson E. Prevalence and gender distribution of excoriation (skin-picking) disorder: A systematic review and meta-analysis. Journal Of Psychiatric Research 2023, 161: 412-418. PMID: 37023597, PMCID: PMC11137851, DOI: 10.1016/j.jpsychires.2023.03.034.Peer-Reviewed Original ResearchConceptsExcoriation disorderPublic health impactEpidemiological studiesGeneral populationSystematic reviewHealth impactsDifferent prevalence estimatesPooled prevalenceOverall prevalenceInclusion criteriaMale ratioPubMed searchPrevalence estimatesGender distributionDisordersPrevalenceDatabase searchEMBASEReviewPopulationPubMedPsycINFOStudyWomenCharacteristics of trichotillomania and excoriation disorder across the lifespan
Lin A, Farhat L, Flores J, Levine J, Fernandez T, Bloch M, Olfson E. Characteristics of trichotillomania and excoriation disorder across the lifespan. Psychiatry Research 2023, 322: 115120. PMID: 36842397, PMCID: PMC10023474, DOI: 10.1016/j.psychres.2023.115120.Peer-Reviewed Original ResearchConceptsExcoriation disorderClinical characteristicsSkin-picking severityAttention-deficit/hyperactivity disorderCo-occurring conditionsBody-focused repetitive behaviorsObsessive-compulsive disorderSeverity scoreCurrent symptomsSignificant positive correlationTrichotillomaniaHyperactivity disorderDisordersSelf-reported anxietyAge 4High rateSubtypesSelf-report measuresSeverityCross-sectional survey responsesRepetitive behaviorsAdulthoodPositive correlationThe Relationship Between Acute Dissociative Effects Induced by Ketamine and Treatment Response in Adolescent Patients with Treatment-Resistant Depression
Lineham A, Avila-Quintero V, Bloch M, Dwyer J. The Relationship Between Acute Dissociative Effects Induced by Ketamine and Treatment Response in Adolescent Patients with Treatment-Resistant Depression. Journal Of Child And Adolescent Psychopharmacology 2023, 33: 20-26. PMID: 36799961, DOI: 10.1089/cap.2022.0086.Peer-Reviewed Original ResearchConceptsTreatment-resistant depressionDepression symptom improvementAcute dissociative symptomsAntidepressant responseSymptom improvementRapid-acting antidepressant agentsSignificant associationDissociative symptomsLikelihood of responseDissociation symptomsMagnitude of associationDissociative effectsKetamine groupPediatric patientsCrossover trialPediatric populationAntidepressant agentsKetamine responseAdolescent patientsAdult studiesDepression responseSecondary data analysisTreatment responseDepressive symptomsTrial designSystematic review and meta-analysis: Season of birth and schizophrenia risk
Coury S, Lombroso A, Avila-Quintero V, Taylor J, Flores J, Szejko N, Bloch M. Systematic review and meta-analysis: Season of birth and schizophrenia risk. Schizophrenia Research 2023, 252: 244-252. PMID: 36682315, DOI: 10.1016/j.schres.2022.12.016.Peer-Reviewed Original ResearchConceptsRisk of schizophreniaSummer birthWinter birthSystematic reviewBirth monthVitamin D deficiencyStratified subgroup analysisSchizophrenia riskEtiological risk factorsMonth of birthD deficiencySeason of birthEtiologic causesSubgroup analysisVirus exposureRisk factorsSchizophreniaMonthsBirthSignificant differencesRiskAssociation
2022
Characterization of human basal ganglia organoids
Brady M, Mariani J, Koca Y, Szekely A, King R, Bloch M, Landeros-Weisenberger A, Leckman J, Vaccarino F. Characterization of human basal ganglia organoids. Molecular Psychiatry 2022, 27: 4823-4823. PMID: 36536052, DOI: 10.1038/s41380-022-01914-y.Peer-Reviewed Original ResearchMispatterning and interneuron deficit in Tourette Syndrome basal ganglia organoids
Brady M, Mariani J, Koca Y, Szekely A, King R, Bloch M, Landeros-Weisenberger A, Leckman J, Vaccarino F. Mispatterning and interneuron deficit in Tourette Syndrome basal ganglia organoids. Molecular Psychiatry 2022, 27: 5007-5019. PMID: 36447010, PMCID: PMC9949887, DOI: 10.1038/s41380-022-01880-5.Peer-Reviewed Original ResearchConceptsTourette syndromeInterneuron deficitsGABAergic interneuronsHealthy controlsNeurodevelopmental underpinningsNeuropathological deficitsBG circuitryNeuropsychiatric disordersDecreased differentiationT patientsInterneuronsAltered expressionPotential mechanismsCilia disruptionSonic hedgehogOrganoidsStem cellsTS individualsPluripotent stem cellsGli transcription factorsDeficitsOrganoid differentiationEarly stagesCholinergicPatientsEditorial: Schools on the frontline of suicide prevention
Kamody RC, Bloch MH. Editorial: Schools on the frontline of suicide prevention. Journal Of Child Psychology And Psychiatry 2022, 63: 833-835. PMID: 35861181, DOI: 10.1111/jcpp.13663.Peer-Reviewed Original ResearchConceptsMental health crisisYouth mental healthMental healthMental health careHealth crisisMental health fieldSuicide preventionBehavioral healthContinuum of servicesHealth careInnovative interventionsCOVID-19 pandemicIntervention approachesYouth behavioral healthCareHealthInequitable accessHealth fieldPandemic