Featured Publications
Meta-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 AdministrationAtomoxetineSymptoms
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
Pharmacologic Treatment of Tardive Dyskinesia: A Meta-Analysis and Systematic Review.
Artukoglu BB, Li F, Szejko N, Bloch MH. Pharmacologic Treatment of Tardive Dyskinesia: A Meta-Analysis and Systematic Review. The Journal Of Clinical Psychiatry 2020, 81 PMID: 32459404, DOI: 10.4088/jcp.19r12798.Peer-Reviewed Original ResearchConceptsTreatment of TDGreater score reductionPlacebo-controlled trialTardive dyskinesiaVitamin EPharmacologic treatmentTD symptomsScore reductionSystematic reviewPublication biasVesicular monoamine transporter 2 (VMAT2) inhibitorTardive dyskinesia treatmentVitamin E studiesTransporter 2 inhibitorsCalcium channel blockersDuration of treatmentTardive dyskinesia symptomsGreater reductionFixed-effects modelMedication classesHead trialsDyskinesia symptomsPrimary outcomePharmacologic agentsVMAT2 inhibitorsMeta-analysis: Pharmacologic Treatment of Restricted and Repetitive Behaviors in Autism Spectrum Disorders
Zhou MS, Nasir M, Farhat LC, Kook M, Artukoglu BB, Bloch MH. Meta-analysis: Pharmacologic Treatment of Restricted and Repetitive Behaviors in Autism Spectrum Disorders. Journal Of The American Academy Of Child & Adolescent Psychiatry 2020, 60: 35-45. PMID: 32387445, DOI: 10.1016/j.jaac.2020.03.007.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsPlacebo-controlled trialPharmacological treatmentPharmacological agentsAvailable pharmacological agentsAutism spectrum disorderSerotonin reuptake inhibitorsStandardized mean differenceStandardized study designsTreatment of ASDPharmacologic treatmentPrimary outcomeReuptake inhibitorsAntipsychotic medicationSpecific assessment toolsFolinic acidSpectrum disorderModest benefitRepetitive behaviorsMean differenceStudy designSmall effect sizesIndividual studiesTrialsPlacebo
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 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 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 ResearchConceptsSerotonin-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
Meta-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 dry mouth with second generation antidepressants
Cappetta K, Beyer C, Johnson JA, Bloch MH. Meta-analysis: Risk of dry mouth with second generation antidepressants. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2017, 84: 282-293. PMID: 29274375, DOI: 10.1016/j.pnpbp.2017.12.012.Peer-Reviewed Original ResearchConceptsDry mouthSecond-generation antidepressantsGreater riskAntidepressant agentsGeneration antidepressantsPlacebo-controlled trialPooled risk ratioStratified subgroup analysisReceptor affinity profileSNRI classMedication classesAntidepressant medicationAtypical antidepressantsRisk ratioSubgroup analysisDepressive disorderSTUDY SELECTIONPubMed searchDATA SOURCESSNRIsDiagnostic indicationsSSRIsAntidepressantsAnxiety diagnosesAnxiety disordersMeta‐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 transporterEfficacy of Palmitoylethanolamide for Pain: A Meta-Analysis.
Artukoglu BB, Beyer C, Zuloff-Shani A, Brener E, Bloch MH. Efficacy of Palmitoylethanolamide for Pain: A Meta-Analysis. Pain Physician 2017, 20: 353-362. PMID: 28727699.Peer-Reviewed Original ResearchConceptsEfficacy of palmitoylethanolamidePlacebo-controlled trialInactive control conditionsSystematic reviewVisual analog pain scaleAnalog pain scaleSerious adverse eventsEffect of palmitoylethanolamideWeighted mean differenceGreater pain reductionPEA treatmentInactive control groupPain reductionPain scoresAdverse eventsPain scalePain managementPrimary outcomeChronic painConcomitant treatmentControl conditionUseful treatmentAnalgesic agentsPlacebo controlClinical trialsRisk of Irritability With Psychostimulant Treatment in Children With ADHD: A Meta-Analysis.
Stuckelman ZD, Mulqueen JM, Ferracioli-Oda E, Cohen SC, Coughlin CG, Leckman JF, Bloch MH. Risk of Irritability With Psychostimulant Treatment in Children With ADHD: A Meta-Analysis. The Journal Of Clinical Psychiatry 2017, 78: e648-e655. PMID: 28682529, DOI: 10.4088/jcp.15r10601.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderRisk of irritabilitySide effectsPsychostimulant medicationPsychostimulant treatmentAmphetamine derivativesPlacebo-controlled trialCommon side effectsStratified subgroup analysisEffects of amphetamineTreatment of childrenDuration of usePsychostimulant classesEligible trialsMedical comorbiditiesHead trialsSubgroup analysisRisk ratioRelative riskSTUDY SELECTIONEffective treatmentDATA SOURCESPubMed searchTrial designStimulant typeAlpha-7 nicotinic agonists for cognitive deficits in neuropsychiatric disorders: A translational meta-analysis of rodent and human studies
Lewis AS, van Schalkwyk GI, Bloch MH. Alpha-7 nicotinic agonists for cognitive deficits in neuropsychiatric disorders: A translational meta-analysis of rodent and human studies. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2017, 75: 45-53. PMID: 28065843, PMCID: PMC5446073, DOI: 10.1016/j.pnpbp.2017.01.001.Peer-Reviewed Original ResearchConceptsCognitive dysfunctionAlzheimer's diseaseClinical trialsHuman studiesΑ7 nicotinic acetylcholine receptorPreclinical behavioral testsPlacebo-controlled trialMultiple clinical trialsNicotinic acetylcholine receptorsEffect sizeDrug development targetsΑ7 agonistsFunctional disabilityCochrane LibraryΑ7 nAChRsNicotinic agonistsRodent studiesTherapeutic targetAnimal modelsCurrent therapeuticsLarge effect sizesΑ7 nAChR.Acetylcholine receptorsPartial agonistBehavioral tests
2016
Early 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 disorderN-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
Systematic 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 dropoutsMeta-Analysis: Reduced Risk of Anxiety with Psychostimulant Treatment in Children with Attention-Deficit/Hyperactivity Disorder
Coughlin CG, Cohen SC, Mulqueen JM, Ferracioli-Oda E, Stuckelman ZD, Bloch MH. Meta-Analysis: Reduced Risk of Anxiety with Psychostimulant Treatment in Children with Attention-Deficit/Hyperactivity Disorder. Journal Of Child And Adolescent Psychopharmacology 2015, 25: 611-617. PMID: 26402485, PMCID: PMC4617411, DOI: 10.1089/cap.2015.0075.Peer-Reviewed Original ResearchConceptsRisk of anxietyAttention-deficit/hyperactivity disorderPsychostimulant treatmentSide effectsHyperactivity disorderPlacebo-controlled trialStratified subgroup analysisTreatment of childrenDuration of useRisk ratioSubgroup analysisPsychostimulant medicationPlaceboPubMed searchTrial designNumber of childrenHigh dosesStimulant typePsychostimulantsAnxiety symptomsTreatmentChildrenRiskSymptomsAnxietyRiluzole 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 analysisMeta-Analysis: Risk of Tics Associated With Psychostimulant Use in Randomized, Placebo-Controlled Trials
Cohen SC, Mulqueen JM, Ferracioli-Oda E, Stuckelman ZD, Coughlin CG, Leckman JF, Bloch MH. Meta-Analysis: Risk of Tics Associated With Psychostimulant Use in Randomized, Placebo-Controlled Trials. Journal Of The American Academy Of Child & Adolescent Psychiatry 2015, 54: 728-736. PMID: 26299294, DOI: 10.1016/j.jaac.2015.06.011.Peer-Reviewed Original ResearchConceptsWorsening of ticsRisk of ticsAttention-deficit/hyperactivity disorderPlacebo-controlled trialNew onsetDuration of treatmentPsychostimulant usePsychostimulant medicationNew-onset ticsType of psychostimulantsParallel-group trialStratified subgroup analysisSide effect dataTreatment of childrenAge of participantsPlacebo groupAdverse eventsCrossover studyPsychostimulant treatmentTic symptomsRisk ratioSubgroup analysisFamily historyGroup trialsPubMed search