Featured Publications
Meta-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 changeA 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
2024
The 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 disorderObsessive-Compulsive Disorder
Farhat L, Bloch M. Obsessive-Compulsive Disorder. 2024 DOI: 10.1016/b978-0-323-95702-1.00239-6.Peer-Reviewed Original Research
2023
The 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 pairsDisordersOCDCharacteristics 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 correlation
2021
Systematic Review and Meta-analysis: An Empirical Approach to Defining Treatment Response and Remission in Pediatric Obsessive-Compulsive Disorder
Farhat LC, Vattimo EFQ, Ramakrishnan D, Levine JLS, Johnson JA, Artukoglu BB, Landeros-Weisenberger A, Asbahr FR, Cepeda SL, Comer JS, Fatori D, Franklin ME, Freeman JB, Geller DA, Grant PJ, Goodman WK, Heyman I, Ivarsson T, Lenhard F, Lewin AB, Li F, Merlo LJ, Mohsenabadi H, Peris TS, Piacentini J, Rosa-Alcázar AI, Rosa-Alcázar À, Rozenman M, Sapyta JJ, Serlachius E, Shabani MJ, Shavitt RG, Small BJ, Skarphedinsson G, Swedo SE, Thomsen PH, Turner C, Weidle B, Miguel EC, Storch EA, Mataix-Cols D, Bloch MH. Systematic Review and Meta-analysis: An Empirical Approach to Defining Treatment Response and Remission in Pediatric Obsessive-Compulsive Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 2021, 61: 495-507. PMID: 34597773, DOI: 10.1016/j.jaac.2021.05.027.Peer-Reviewed Original ResearchConceptsPediatric obsessive-compulsive disorderObsessive-compulsive disorderOptimal cutoffYale-Brown ObsessiveCY-BOCSClinical trialsSystematic reviewClinical Global Impression-ImprovementRandom-effects meta-analysis modelDiscriminative abilityStandardized operational definitionsMeta-analysis modelChildren's Yale-Brown ObsessiveDiagnostic test accuracyTreatment responseRemissionSeverity ScaleMeta-AnalysisYouden indexCompulsive ScaleTrialsDisordersMeta-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 correlatesMeta-Analysis: Hemodynamic Responses to Sub-anesthetic Doses of Ketamine in Patients With Psychiatric Disorders
Vankawala J, Naples G, Avila-Quintero VJ, Ramírez KL, Flores JM, Bloch MH, Dwyer JB. Meta-Analysis: Hemodynamic Responses to Sub-anesthetic Doses of Ketamine in Patients With Psychiatric Disorders. Frontiers In Psychiatry 2021, 12: 549080. PMID: 33841195, PMCID: PMC8024485, DOI: 10.3389/fpsyt.2021.549080.Peer-Reviewed Original ResearchTreatment-resistant depressionSub-anesthetic dosesPost-traumatic stress disorderKetamine treatmentBlood pressureObsessive-compulsive disorderKetamine dosesHemodynamic parametersPsychiatric disordersPsychiatric populationsAverage heart rate increaseKetamine/esketamineStratified subgroup analysisKetamine-induced changesPotential cardiovascular riskHeart rate increaseAdult psychiatric populationSignificant increaseAdult age groupsSub-anesthetic ketamineEsketamine treatmentCardiovascular riskKetamine infusionHemodynamic changesSBP increase
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 ResearchChapter 39 Obsessive–compulsive disorder
Bloch M, Artukoglu B, Lennington J, Szuhay G, Lombroso P. Chapter 39 Obsessive–compulsive disorder. 2020, 663-674. DOI: 10.1016/b978-0-12-813866-3.00039-4.Peer-Reviewed Original ResearchObsessive-compulsive disorderEvidence-based treatmentsCognitive behavioral therapyTreatment-refractory obsessive-compulsive disorderSignificant hereditary componentRepetitive transcranial magnetic stimulationTranscranial magnetic stimulationBrain stimulantBehavioral therapyMagnetic stimulationCortico-striatoSelective serotonin reuptake inhibitorsPharmacological treatment strategiesFirst-line treatmentSerotonin reuptake inhibitorsAntipsychotic augmentationGenetic risk factorsReuptake inhibitorsDisordersRisk factorsTreatment strategiesAnimal studiesNeuroimagingModulating agentsHereditary component
2019
N-Acetylcysteine for Pediatric Obsessive-Compulsive Disorder: A Small Pilot Study
Li F, Welling MC, Johnson JA, Coughlin C, Mulqueen J, Jakubovski E, Coury S, Landeros-Weisenberger A, Bloch MH. N-Acetylcysteine for Pediatric Obsessive-Compulsive Disorder: A Small Pilot Study. Journal Of Child And Adolescent Psychopharmacology 2019, 30: 32-37. PMID: 31800306, PMCID: PMC7133418, DOI: 10.1089/cap.2019.0041.Peer-Reviewed Original ResearchConceptsCY-BOCS total scoreN-acetylcysteineYale-Brown ObsessiveTotal scorePlacebo groupNAC groupStudy populationBenefit of NACPlacebo-controlled clinical trialSymptom severityEffect of NACMild adverse eventsOCD symptom severityLarger study populationPediatric obsessive-compulsive disorderSmall pilot studyChildren's Yale-Brown ObsessiveStudy medicationAdverse eventsPrimary outcomeGlutamate dysfunctionObsessive-compulsive disorderWeek 12Future trialsNAC treatmentMeta-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 of Placebo Response in Adult Antidepressant Trials
Li F, Nasir M, Olten B, Bloch MH. Meta-Analysis of Placebo Response in Adult Antidepressant Trials. CNS Drugs 2019, 33: 971-980. PMID: 31573058, DOI: 10.1007/s40263-019-00662-y.Peer-Reviewed Original ResearchConceptsPlacebo response ratesPlacebo improvementSymptom improvementObsessive-compulsive disorderResponse rateDiagnostic indicationsAntidepressant trialsRandomized placebo-controlled trialPlacebo-controlled trialStratified subgroup analysisSecond-generation antidepressantsPlacebo comparison groupFuture antidepressantsSubgroup analysisClinical trialsPlacebo responseTrial characteristicsGreater magnitudeDepression trialsMeta-AnalysisUS sitesTrial durationAntidepressantsLanguage limitsMean differenceThe 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
Exploring Retrospective Biases in Obsessive-Compulsive Disorder: an Experience-Sampling Study
MacLaren Kelly J, Kertz S, Simpson R, Bloch M, Pittenger C. Exploring Retrospective Biases in Obsessive-Compulsive Disorder: an Experience-Sampling Study. Journal Of Technology In Behavioral Science 2018, 4: 297-302. DOI: 10.1007/s41347-018-0078-y.Peer-Reviewed Original ResearchObsessive-compulsive disorderExperience-sampling methodRecall biasesRetrospective ratingsExperience Sampling StudyParticipants' retrospective ratingsSymptom severityOCD symptom severityYale-Brown Obsessive Compulsive ScalePotential recall biasesObsessive Compulsive ScaleRetrospective biasesCompulsive disorderSymptom changeCompulsive ScaleRetrospective reportsCurrent studyBiasesDistressRecall biasRetrospective estimatesProgress monitoringFuture directionsRatingsSymptom assessmentMeta-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 riskHeadacheMedicationsChapter 17 Managing a Child With OCD Who Is Treatment Refractory
Bloch M. Chapter 17 Managing a Child With OCD Who Is Treatment Refractory. 2018, 329-356. DOI: 10.1016/b978-0-12-811427-8.00017-4.Peer-Reviewed Original ResearchObsessive-compulsive disorderTreatment-refractory obsessive-compulsive disorderCognitive behavioral therapyFirst-line treatmentOCD symptomsPediatric obsessive-compulsive disorderSelective serotonin reuptake inhibitor (SSRI) pharmacotherapyEffective first-line treatmentSelective serotonin reuptake inhibitorsIntensive treatment programSerotonin reuptake inhibitorsGlutamate-modulating agentsMajority of childrenTreatment programAntipsychotic augmentationReuptake inhibitorsTreatment refractoryPharmacological treatmentAvailable treatmentsChildrenSubstantial proportionPharmacotherapyTreatmentTherapySymptoms
2017
Monotherapy Insufficient in Severe Anxiety? Predictors and Moderators in the Child/Adolescent Anxiety Multimodal Study
Taylor JH, Lebowitz ER, Jakubovski E, Coughlin CG, Silverman WK, Bloch MH. Monotherapy Insufficient in Severe Anxiety? Predictors and Moderators in the Child/Adolescent Anxiety Multimodal Study. Journal Of Clinical Child & Adolescent Psychology 2017, 47: 266-281. PMID: 28956620, PMCID: PMC6191182, DOI: 10.1080/15374416.2017.1371028.Peer-Reviewed Original ResearchConceptsChild/Adolescent Anxiety Multimodal StudyCognitive behavioral therapyModerators of outcomeSevere anxietyCombination of CBTIndependent evaluator ratingsMultimodal studyParent-rated anxietySeparation anxiety disorderMain effect findingsObsessive-compulsive disorderAnxious youthSocial anxietyChild anxietyBehavioral therapyAnxiety severityPill placeboAnxiety disordersEvaluators' ratingsAnxietyModeratorSocioeconomic statusLow socioeconomic statusYouthEffect findingsMeta‐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 transporter