Featured Publications
The 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 thoughtsA 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
Characteristics 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 design
2022
Parental age and the risk of bipolar disorder in the offspring: A systematic review and meta‐analysis
Polga N, de Barros P, Farhat LC, de Almeida K, Bloch MH, Lafer B. Parental age and the risk of bipolar disorder in the offspring: A systematic review and meta‐analysis. Acta Psychiatrica Scandinavica 2022, 145: 568-577. PMID: 35188977, DOI: 10.1111/acps.13418.Peer-Reviewed Original ResearchConceptsRisk of BDBipolar disorderMaternal ageOdds ratioParental ageReference categoryOlder maternal age groupsAge groupsPaternal age groupsMaternal age groupsWeb of ScienceObservational studySystematic reviewAgeFurther studiesRiskDisordersOffspringAssociationEffect size indexEMBASEGroupSize indexPubMedStudy
2021
Pharmacological and somatic treatment effects on suicide in adults: A systematic review and meta‐analysis
Wilkinson ST, Diaz D, Rupp ZW, Kidambi A, Ramirez KL, Flores JM, Avila‐Quintero V, Rhee TG, Olfson M, Bloch MH. Pharmacological and somatic treatment effects on suicide in adults: A systematic review and meta‐analysis. Depression And Anxiety 2021, 39: 100-112. PMID: 34762330, DOI: 10.1002/da.23222.Peer-Reviewed Original ResearchConceptsOdds of suicidePlacebo/Suicide riskPsychotic disordersBipolar disorderSystematic reviewSuicide deathsMeta-analyzed associationsNon-clozapine antipsychoticsMagnetic seizure therapySomatic interventionsVagus nerve stimulationNewcastle-Ottawa ScaleAntiepileptic mood stabilizersTranscranial magnetic stimulationCertain clinical contextsDirect current stimulationEffects of pharmacologicPublic health crisisSeizure therapyElectroconvulsive therapyNerve stimulationMood stabilizersStudy qualityProtective effectMeta-Analysis: Pediatric Placebo Response in Depression Trials Does Not Replicate in Anxiety and Obsessive-Compulsive Disorder Trials
Nasir M, Li F, Courley S, Olten B, Bloch MH. Meta-Analysis: Pediatric Placebo Response in Depression Trials Does Not Replicate in Anxiety and Obsessive-Compulsive Disorder Trials. Journal Of Child And Adolescent Psychopharmacology 2021, 31: 670-684. PMID: 34558984, DOI: 10.1089/cap.2021.0030.Peer-Reviewed Original ResearchConceptsPlacebo response ratesObsessive-compulsive disorderPlacebo responseDepression trialsResponse ratePlacebo improvementSymptom improvementAntidepressant trialsStratified subgroup analysisRandom-effects modelPediatric populationSubgroup analysisStudy visitNumber of subjectsPsychopharmacological trialsPubMed searchDifferent indicationsDiagnostic indicationsMean differenceAnxiety disordersTrialsDisordersPediatric anxietyPredictorsPossible correlatesA Phase-2 Pilot Study of a Therapeutic Combination of Δ9-Tetrahydracannabinol and Palmitoylethanolamide for Adults With Tourette’s Syndrome
Bloch MH, Landeros-Weisenberger A, Johnson JA, Leckman JF. A Phase-2 Pilot Study of a Therapeutic Combination of Δ9-Tetrahydracannabinol and Palmitoylethanolamide for Adults With Tourette’s Syndrome. Journal Of Neuropsychiatry 2021, 33: 328-336. PMID: 34340527, DOI: 10.1176/appi.neuropsych.19080178.Peer-Reviewed Original ResearchConceptsTourette syndromeTic symptomsUncontrolled trialsYale Global Tic Severity Scale-Total Tic ScoreDouble-blind placebo-controlled trialAvailable evidence-based treatmentsPhase 2 pilot studyExtension phasePlacebo-controlled trialRefractory Tourette syndromeTotal tic scoreEffective pharmacological treatmentCannabis-derived compoundsEvidence-based treatmentsTHC dosingSecondary outcomesPrimary outcomeComorbid conditionsPharmacological treatmentTic scoreYGTSS scoresTherapeutic combinationsSide effectsTrial designSyndrome
2019
Meta-analysis of placebo group dropout in adult antidepressant trials
Li F, Nasir M, Olten B, Bloch MH. Meta-analysis of placebo group dropout in adult antidepressant trials. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2019, 98: 109777. PMID: 31697973, DOI: 10.1016/j.pnpbp.2019.109777.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderPlacebo leadAntidepressant trialsDiagnostic indicationsPlacebo-controlled trialStratified subgroup analysisBaseline illness severityMore study visitsDropout rateOverall dropout rateFreeman-Tukey transformationLonger trial durationEarlier publication yearPlacebo groupIllness severitySubgroup analysisDepressive disorderStudy visitMeta-AnalysisTrial durationAnxiety disordersTrialsEfficiency of trialsSubject burdenDisordersMeta-analysis: Adulthood prevalence of Tourette syndrome
Levine JLS, Szejko N, Bloch MH. Meta-analysis: Adulthood prevalence of Tourette syndrome. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2019, 95: 109675. PMID: 31220521, DOI: 10.1016/j.pnpbp.2019.109675.Peer-Reviewed Original ResearchConceptsPrevalence of TSTourette syndromeRisk ratioCases of TSPrevalence estimatesLogit event rateAccurate prevalence estimatesTS prevalenceRemission criteriaTic symptomsFemale ratioPublic health decisionsOverall prevalencePsychiatric conditionsPublication biasCase identificationEvent ratesPrevalenceHealth decisionsLongitudinal studyAdultsSignificant differencesSyndromeTS casesTwo-thirdsThe impact of attention deficit hyperactivity disorder in obsessive‐compulsive disorder subjects
Blanco‐Vieira T, Santos M, Ferrão YA, Torres AR, Miguel EC, Bloch MH, Leckman JF, do Rosario MC. The impact of attention deficit hyperactivity disorder in obsessive‐compulsive disorder subjects. Depression And Anxiety 2019, 36: 533-542. PMID: 30990937, DOI: 10.1002/da.22898.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderAdult OCD patientsObsessive-compulsive disorderDeficit hyperactivity disorderOCD patientsClinical characteristicsExact testFeatures of ADHDHyperactivity disorderSubgroup of patientsAdult obsessive-compulsive disorderComorbid attention deficit hyperactivity disorderSpecific clinical featuresCross-sectional studyObsessive-compulsive disorder (OCD) subjectsLogistic regression analysisFisher's exact testBrazilian Research ConsortiumMann-Whitney testAdult patientsRheumatic feverDevelopment of interventionsClinical featuresObsessive-compulsive spectrum disordersLifetime prevalence
2018
Supplementation with polyunsaturated fatty acids (PUFAs) in the management of attention deficit hyperactivity disorder (ADHD)
Banaschewski T, Belsham B, Bloch MH, Ferrin M, Johnson M, Kustow J, Robinson S, Zuddas A. Supplementation with polyunsaturated fatty acids (PUFAs) in the management of attention deficit hyperactivity disorder (ADHD). Nutrition And Health 2018, 24: 279-284. PMID: 29921155, PMCID: PMC6291899, DOI: 10.1177/0260106018772170.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderPUFA supplementationDeficit hyperactivity disorderManagement of ADHDFurther high-quality researchHyperactivity disorderPossible side effectsSmall beneficial effectRobust evidence baseChild attention-deficit hyperactivity disorderFatty acidsFrontline treatmentHigh-quality researchCurrent evidenceSide effectsPsychosocial interventionsTreatment approachesPanel consensusPatientsBeneficial effectsEvidence baseSupplementationInternational expertsDisordersAdultsTime course of clinical change following neurofeedback
Rance M, Walsh C, Sukhodolsky DG, Pittman B, Qiu M, Kichuk SA, Wasylink S, Koller WN, Bloch M, Gruner P, Scheinost D, Pittenger C, Hampson M. Time course of clinical change following neurofeedback. NeuroImage 2018, 181: 807-813. PMID: 29729393, PMCID: PMC6454268, DOI: 10.1016/j.neuroimage.2018.05.001.Peer-Reviewed Original ResearchConceptsClinical changesSymptom changeTime courseBrain functionNeurofeedback studiesPotential clinical toolCrossover designControl interventionsReal neurofeedbackClinical toolTime pointsClinical populationsNeurofeedback effectsInterventionNeurofeedback sessionsNeurofeedbackCurrent brain stateWeeksBrain statesNew studiesCourseSessionsSymptomsMeta-analysis: Second generation antidepressants and headache
Telang S, Walton C, Olten B, Bloch MH. Meta-analysis: Second generation antidepressants and headache. Journal Of Affective Disorders 2018, 236: 60-68. PMID: 29715610, DOI: 10.1016/j.jad.2018.04.047.Peer-Reviewed Original ResearchConceptsRisk of headacheSecond-generation antidepressantsAntidepressant medicationGeneration antidepressantsSide effectsTreatment-emergent side effectsPlacebo-controlled trialPooled risk ratioFixed-dose trialStratified subgroup analysisTreatment of adultsDosage of medicationReceptor affinity profileSignificant differencesMeta-analysis resultsOnly antidepressantsMedication classesMedication dosingMedication typeObsessive-compulsive disorderSubgroup analysisRisk ratioRelative riskHeadacheMedications
2017
Meta‐analysis: Risk of hyperhidrosis with second‐generation antidepressants
Beyer C, Cappetta K, Johnson JA, Bloch MH. Meta‐analysis: Risk of hyperhidrosis with second‐generation antidepressants. Depression And Anxiety 2017, 34: 1134-1146. PMID: 28881483, DOI: 10.1002/da.22680.Peer-Reviewed Original ResearchConceptsSSRI/SNRI medicationsSerotonin-norepinephrine reuptake inhibitorsSecond-generation antidepressantsAntidepressant medicationSNRI medicationsMost antidepressant medicationsPlacebo-controlled trialPooled risk ratioStratified subgroup analysisTreatment of adultsReceptor affinity profileMedication classesReuptake inhibitorsMedication typeObsessive-compulsive disorderAntidepressant agentsRisk ratioSubgroup analysisDepressive disorderDopamine transporter affinityHyperhidrosisMedicationsPubMed searchSide effectsDopamine transporterKetamine for Social Anxiety Disorder: A Randomized, Placebo-Controlled Crossover Trial
Taylor JH, Landeros-Weisenberger A, Coughlin C, Mulqueen J, Johnson JA, Gabriel D, Reed MO, Jakubovski E, Bloch MH. Ketamine for Social Anxiety Disorder: A Randomized, Placebo-Controlled Crossover Trial. Neuropsychopharmacology 2017, 43: 325-333. PMID: 28849779, PMCID: PMC5729569, DOI: 10.1038/npp.2017.194.Peer-Reviewed Original ResearchConceptsLiebowitz Social Anxiety ScaleSocial anxiety disorderAnxiety disordersSocial Anxiety ScaleSelf-reported anxietySocial phobia symptomsRatings of anxietyPotent N-methyl-d-aspartate receptor antagonistPhobia symptomsAnxiety symptomsAnxiety ScaleImpact of ketamineInitial evidenceAnxietyTreatment respondersVAS anxietyPlacebo-controlled crossover trialRatingsDisordersLinear mixed modelsPrior studiesConcept trialInadequate symptom reliefRandom orderMixed modelsRandomized, Double-Blind, Placebo-Controlled Trial of N-Acetylcysteine Augmentation for Treatment-Resistant Obsessive-Compulsive Disorder.
Costa DLC, Diniz JB, Requena G, Joaquim MA, Pittenger C, Bloch MH, Miguel EC, Shavitt RG. Randomized, Double-Blind, Placebo-Controlled Trial of N-Acetylcysteine Augmentation for Treatment-Resistant Obsessive-Compulsive Disorder. The Journal Of Clinical Psychiatry 2017, 78: e766-e773. PMID: 28617566, DOI: 10.4088/jcp.16m11101.Peer-Reviewed Original ResearchMeSH KeywordsAcetylcysteineAdolescentAdultAgedAnxiety DisordersComorbidityDepressive DisorderDouble-Blind MethodDrug ResistanceDrug Therapy, CombinationFemaleHumansMaleMiddle AgedObsessive-Compulsive DisorderPsychiatric Status Rating ScalesPsychometricsSelective Serotonin Reuptake InhibitorsYoung AdultConceptsTreatment-resistant obsessive-compulsive disorderObsessive-compulsive disorderY-BOCS scoresN-acetylcysteineNAC groupYale-Brown Obsessive Compulsive Scale scoresTreatment-resistant OCD patientsBaseline Y-BOCS scoresTreatment-Resistant ObsessivePrimary outcome measureAnxiety symptomsDSM-IV criteriaSymptom dimensionsCompulsive Scale scoresSpecific OCD symptom dimensionsOCD symptom dimensionsAntioxidant medicationsAbdominal painPlacebo groupGlutamate modulatorsSecondary outcomesTertiary hospitalOutpatient clinicSeverity scoreWeek 16Predictors of treatment response and drop out in the Treatment of Early-Onset Schizophrenia Spectrum Disorders (TEOSS) study
Gabriel D, Jakubovski E, Taylor JH, Artukoglu BB, Bloch MH. Predictors of treatment response and drop out in the Treatment of Early-Onset Schizophrenia Spectrum Disorders (TEOSS) study. Psychiatry Research 2017, 255: 248-255. PMID: 28595147, DOI: 10.1016/j.psychres.2017.05.038.Peer-Reviewed Original ResearchIntranasal Ketamine and Cognitive-Behavioral Therapy for Treatment-Refractory Obsessive-Compulsive Disorder
Adams TG, Bloch MH, Pittenger C. Intranasal Ketamine and Cognitive-Behavioral Therapy for Treatment-Refractory Obsessive-Compulsive Disorder. Journal Of Clinical Psychopharmacology 2017, 37: 269-271. PMID: 28121735, PMCID: PMC5321820, DOI: 10.1097/jcp.0000000000000659.Peer-Reviewed Original Research
2016
Time Course and Predictors of Suicidal Ideation During Citalopram Treatment in the STAR*D Trial.
Coughlin CG, Jakubovski E, Bloch MH. Time Course and Predictors of Suicidal Ideation During Citalopram Treatment in the STAR*D Trial. The Journal Of Clinical Psychiatry 2016, 77: e1262-e1269. PMID: 27631142, DOI: 10.4088/jcp.15m10075.Peer-Reviewed Original ResearchConceptsMajor depressive disorderCitalopram treatmentSuicidal ideationClinical predictorsClinical variablesSelective serotonin reuptake inhibitorsNonpsychotic major depressive disorderFirst-line treatmentBaseline clinical variablesSerotonin reuptake inhibitorsWeeks of treatmentSequenced Treatment AlternativesSide effect dataGreater likelihoodTime coursePhase 1Cardiac comorbiditiesNeurologic comorbiditiesBaseline characteristicsSedative medicationsReuptake inhibitorsTrial phase 1Clinical correlatesQuick InventoryDepressive disorder