Featured Publications
The 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 ResearchMeSH KeywordsAdolescentAttention Deficit Disorder with HyperactivityCentral Nervous System StimulantsChildHumansMethylphenidateTreatment OutcomeConceptsFixed-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 infusionThe 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
The 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
2021
A 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
2020
Little Doubt That CBT Works for Pediatric OCD
Storch EA, Peris TS, De Nadai A, Piacentini J, Bloch M, Cervin M, McGuire J, Farrell LJ, McCracken JT, McKay D, Riemann BC, Wagner AP, Franklin M, Schneider SC, Walkup JT, Williams L, Abramowitz JS, Stewart SE, Fitzgerald KD, Goodman WK. Little Doubt That CBT Works for Pediatric OCD. Journal Of The American Academy Of Child & Adolescent Psychiatry 2020, 59: 785-787. PMID: 32618273, DOI: 10.1016/j.jaac.2020.01.026.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentChildCognitionCognitive Behavioral TherapyEmotionsHumansObsessive-Compulsive DisorderTreatment Outcome
2019
Measuring Treatment Response in Pediatric Trichotillomania: A Meta-Analysis of Clinical Trials
Farhat LC, Olfson E, Levine JLS, Li F, Franklin ME, Lee HJ, Lewin AB, McGuire JF, Rahman O, Storch EA, Tolin DF, Zickgraf HF, Bloch MH. Measuring Treatment Response in Pediatric Trichotillomania: A Meta-Analysis of Clinical Trials. Journal Of Child And Adolescent Psychopharmacology 2019, 30: 306-315. PMID: 31794677, PMCID: PMC7476376, DOI: 10.1089/cap.2019.0103.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAge FactorsChildHumansSeverity of Illness IndexTreatment OutcomeTrichotillomaniaConceptsClinical trialsTreatment responseOptimal cut pointCut pointsMassachusetts General Hospital Hair Pulling ScalePediatric trichotillomaniaClinical Global Impressions-Improvement scoreMeta-DiSc softwareClinical responsePediatric populationAge-related differencesSeverity ScaleImprovement scoresMeta-AnalysisYouden indexStandardized definitionsTTM severityOlder childrenTrichotillomaniaTrialsParent versionNational InstituteYoung childrenMGH-HPSDiscriminative abilityThe Potential of Cannabinoid-Based Treatments in Tourette Syndrome
Artukoglu BB, Bloch MH. The Potential of Cannabinoid-Based Treatments in Tourette Syndrome. CNS Drugs 2019, 33: 417-430. PMID: 30977108, DOI: 10.1007/s40263-019-00627-1.Peer-Reviewed Original ResearchConceptsTourette syndromeCannabinoid systemAdult populationPositive urine drug screenBiological rationaleCannabinoid-based treatmentsPotential of cannabinoidsTourette syndrome populationsPlacebo-controlled trialTreatment of ticsUrine drug screensNovel pharmacological treatmentsCannabis-derived compoundsStrong biological rationaleCurrent evidence baseComprehensive literature searchDevelopmental adverse effectsRefractory patientsSafety profilePharmacological treatmentClinical trialsTic disordersUncertain efficacyFurther trialsSyndrome populationEfficacy and Tolerability of Pharmacotherapy for Pediatric Anxiety Disorders: A Network Meta-Analysis.
Dobson ET, Bloch MH, Strawn JR. Efficacy and Tolerability of Pharmacotherapy for Pediatric Anxiety Disorders: A Network Meta-Analysis. The Journal Of Clinical Psychiatry 2019, 80 PMID: 30753760, DOI: 10.4088/jcp.17r12064.Peer-Reviewed Original ResearchMeSH KeywordsAnxiety DisordersChildHumansNetwork Meta-AnalysisNeurotransmitter Uptake InhibitorsTreatment OutcomeConceptsSerotonin-norepinephrine reuptake inhibitorsSelective serotonin reuptake inhibitorsTolerability of pharmacotherapyTreatment-emergent suicidalityMedication classesTreatment responsePediatric anxiety disordersAnxiety disordersReuptake inhibitorsTolerability of medicationsPlacebo-controlled trialSerotonin reuptake inhibitorsNetwork Meta-AnalysisRisk of biasWeb of ScienceCause discontinuationGeMTC packageSuicidality dataCochrane riskMultiple medicationsBias toolPediatric patientsMedication trialsAgonist treatmentCochrane Database
2018
Identifying standardized definitions of treatment response in trichotillomania: A meta-analysis
Farhat LC, Olfson E, Li F, Telang S, Bloch MH. Identifying standardized definitions of treatment response in trichotillomania: A meta-analysis. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2018, 89: 446-455. PMID: 30336171, DOI: 10.1016/j.pnpbp.2018.10.009.Peer-Reviewed Original ResearchConceptsTreatment responseClinical trialsMassachusetts General Hospital Hair Pulling ScaleClinical Global Impression-Improvement scale scoreMGH-HPSImprovement Scale scoresMeta-DiSc softwarePediatric subjectsSeverity ScaleScale scoreAdult subjectsSymptom severityYouden indexStandardized definitionsTrialsNational InstituteCentral databaseTrichotillomaniaPercent reductionUniversal definitionAdequate dataSubjectsResponsePubMed
2017
Predictors 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 ResearchKetamine as a Treatment for Adolescent Depression: A Case Report
Dwyer JB, Beyer C, Wilkinson ST, Ostroff RB, Qayyum Z, Bloch MH. Ketamine as a Treatment for Adolescent Depression: A Case Report. Journal Of The American Academy Of Child & Adolescent Psychiatry 2017, 56: 352-354. PMID: 28335880, DOI: 10.1016/j.jaac.2017.01.006.Peer-Reviewed Case Reports and Technical Notes
2016
Systematic Review and Meta-Analysis: Early Treatment Responses of Selective Serotonin Reuptake Inhibitors and Clomipramine in Pediatric Obsessive-Compulsive Disorder
Varigonda AL, Jakubovski E, Bloch MH. Systematic Review and Meta-Analysis: Early Treatment Responses of Selective Serotonin Reuptake Inhibitors and Clomipramine in Pediatric Obsessive-Compulsive Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 2016, 55: 851-859.e2. PMID: 27663940, PMCID: PMC6944467, DOI: 10.1016/j.jaac.2016.07.768.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsPediatric obsessive-compulsive disorderSerotonin reuptake inhibitorsObsessive-compulsive disorderYale-Brown ObsessiveReuptake inhibitorsTime courseEarly treatment responseTreatment effectsChildren's Yale-Brown ObsessiveSSRI agentsPlacebo groupSSRI treatmentAdult patientsTreatment responsePooled estimatesPharmacological responseHigh dosesMeta-AnalysisSystematic reviewClomipramineSymptom dataMagnitude of responseMean differenceCompulsive ScaleEarly onset of response with selective serotonin reuptake inhibitors in obsessive-compulsive disorder: a meta-analysis.
Issari Y, Jakubovski E, Bartley CA, Pittenger C, Bloch MH. Early onset of response with selective serotonin reuptake inhibitors in obsessive-compulsive disorder: a meta-analysis. The Journal Of Clinical Psychiatry 2016, 77: e605-11. PMID: 27249090, DOI: 10.4088/jcp.14r09758.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsYale-Brown Obsessive Compulsive ScalePlacebo-controlled trialSerotonin reuptake inhibitorsTreatment of adultsObsessive-compulsive disorderSSRI responseSSRI treatmentReuptake inhibitorsSymptom improvementEfficacy of SSRIsTrials of SSRIsFirst-line pharmacologic treatmentCochrane Central RegisterStart of treatmentMajor depressive disorderEffect of doseObsessive Compulsive ScaleSSRI actionCentral RegisterPharmacologic treatmentPrimary outcomeControlled TrialsSSRI trialDepressive disorderSystematic Review of Pharmacological and Behavioral Treatments for Skin Picking Disorder
Schumer MC, Bartley CA, Bloch MH. Systematic Review of Pharmacological and Behavioral Treatments for Skin Picking Disorder. Journal Of Clinical Psychopharmacology 2016, 36: 147-152. PMID: 26872117, PMCID: PMC4930073, DOI: 10.1097/jcp.0000000000000462.Peer-Reviewed Original ResearchConceptsInactive control conditionsUncontrolled trialsBehavioral treatmentSystematic reviewLarger placebo-controlled RCTsSelective serotonin reuptake inhibitorsShort-term clinical trialsBehavioral interventionsPlacebo-controlled RCTsSerotonin reuptake inhibitorsSkin picking disorderEfficacy of treatmentNovel pharmacological agentsShort-term trialsReuptake inhibitorsTreatment armsControl conditionClinical trialsDemonstrated efficacyPsychiatric disordersPharmacological agentsSignificant improvementElectronic databasesRCTsMeta-AnalysisN-Acetylcysteine in the Treatment of Pediatric Tourette Syndrome: Randomized, Double-Blind, Placebo-Controlled Add-On Trial
Bloch MH, Panza KE, Yaffa A, Alvarenga PG, Jakubovski E, Mulqueen JM, Landeros-Weisenberger A, Leckman JF. N-Acetylcysteine in the Treatment of Pediatric Tourette Syndrome: Randomized, Double-Blind, Placebo-Controlled Add-On Trial. Journal Of Child And Adolescent Psychopharmacology 2016, 26: 327-334. PMID: 27027204, PMCID: PMC6445198, DOI: 10.1089/cap.2015.0109.Peer-Reviewed Original ResearchConceptsBenefit of NACEfficacy of NACYale Global Tic Severity ScaleAttention-deficit/hyperactivity disorderObsessive-compulsive disorderTourette syndromeN-acetylcysteineObsessive-compulsive spectrum disordersSide effectsRecent placebo-controlled trialPediatric Tourette syndromePlacebo-controlled trialCurrent pharmacological treatmentsTreatment of ticsTotal tic scoreSeverity of ticsSubstantial side effectsTic Severity ScaleYears of ageMinimal side effectsPediatric TSPrimary outcomeSecondary outcomesGlutamatergic systemPharmacological treatment
2015
Anxiety Disorder-Specific Predictors of Treatment Outcome in the Coordinated Anxiety Learning and Management (CALM) Trial
Jakubovski E, Bloch MH. Anxiety Disorder-Specific Predictors of Treatment Outcome in the Coordinated Anxiety Learning and Management (CALM) Trial. Psychiatric Quarterly 2015, 87: 445-464. PMID: 26563229, DOI: 10.1007/s11126-015-9399-6.Peer-Reviewed Original ResearchConceptsSocial anxiety disorderAnxiety disordersCoordinated Anxiety LearningAnxiety LearningPost-traumatic stress disorderSelf-efficacy expectanciesPositive treatment expectanciesGeneralized anxiety disorderTreatment outcomesStress disorderTreatment expectanciesSpecific treatment needsSocial supportPanic disorderDisordersLearningSocioeconomic statusPredictorsSystematic Review and Meta-Analysis: Dose-Response Relationship of Selective Serotonin Reuptake Inhibitors in Major Depressive Disorder
Jakubovski E, Varigonda AL, Freemantle N, Taylor MJ, Bloch MH. Systematic Review and Meta-Analysis: Dose-Response Relationship of Selective Serotonin Reuptake Inhibitors in Major Depressive Disorder. American Journal Of Psychiatry 2015, 173: 174-183. PMID: 26552940, PMCID: PMC4975858, DOI: 10.1176/appi.ajp.2015.15030331.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsMajor depressive disorderSerotonin reuptake inhibitorsDepressive disorderHigh dosesTreatment responseReuptake inhibitorsBenefit of SSRIsEfficacy of SSRIsTolerability of SSRIsEffects of SSRIsRandomized placebo-controlled trialPlacebo-controlled trialStratified subgroup analysisTherapeutic dose rangeDose-response relationshipSSRI doseTolerability analysisMedication dosesSignificant positive associationSubgroup analysisMultiple time pointsDose categoriesMixed regression modelsCause dropoutsRiluzole augmentation in treatment-refractory obsessive-compulsive disorder: a pilot randomized placebo-controlled trial.
Pittenger C, Bloch MH, Wasylink S, Billingslea E, Simpson R, Jakubovski E, Kelmendi B, Sanacora G, Coric V. Riluzole augmentation in treatment-refractory obsessive-compulsive disorder: a pilot randomized placebo-controlled trial. The Journal Of Clinical Psychiatry 2015, 76: 1075-84. PMID: 26214725, PMCID: PMC4560666, DOI: 10.4088/jcp.14m09123.Peer-Reviewed Original ResearchConceptsPlacebo-controlled trialObsessive-compulsive disorderSmall open-label trialsTreatment-refractory obsessive-compulsive disorderGlutamate modulator riluzoleSignificant residual symptomsOpen-label trialSubset of patientsDSM-IV obsessive-compulsive disorderBest available treatmentsPlacebo leadRiluzole groupRefractory symptomsPartial responseSignificant morbidityResidual symptomsModerate nauseaAvailable treatmentsStandard interventionGlutamate homeostasisRiluzoleSide effectsSRI treatmentPatientsSecondary analysis