2018
The effects of cannabidiol (CBD) on cognition and symptoms in outpatients with chronic schizophrenia a randomized placebo controlled trial
Boggs DL, Surti T, Gupta A, Gupta S, Niciu M, Pittman B, Schnakenberg Martin AM, Thurnauer H, Davies A, D’Souza D, Ranganathan M. The effects of cannabidiol (CBD) on cognition and symptoms in outpatients with chronic schizophrenia a randomized placebo controlled trial. Psychopharmacology 2018, 235: 1923-1932. PMID: 29619533, DOI: 10.1007/s00213-018-4885-9.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, OralAdultAffectAntipsychotic AgentsCannabidiolChronic DiseaseCognitionCognitive DysfunctionDouble-Blind MethodFemaleFollow-Up StudiesHumansMaleMental Status and Dementia TestsMiddle AgedOutpatientsPsychiatric Status Rating ScalesSchizophreniaSchizophrenic PsychologyTreatment OutcomeConceptsMATRICS Consensus Cognitive BatterySide effectsChronic schizophreniaAntipsychotic-treated patientsMovement side effectsFixed-dose studyPlacebo-treated subjectsWeeks of treatmentPANSS total scoreEffects of cannabidiolWorsening of moodNegative Syndrome ScaleAntipsychotic-treated outpatients× time effect× time interactionMCCB composite scoreOral cannabidiolCBD groupClinical trialsParallel groupPANSS scoresMethodsThis studyPsychotic symptomsConsensus Cognitive BatterySyndrome Scale
2012
Glycine treatment of the risk syndrome for psychosis: Report of two pilot studies
Woods SW, Walsh BC, Hawkins KA, Miller TJ, Saksa JR, D'Souza DC, Pearlson GD, Javitt DC, McGlashan TH, Krystal JH. Glycine treatment of the risk syndrome for psychosis: Report of two pilot studies. European Neuropsychopharmacology 2012, 23: 931-940. PMID: 23089076, PMCID: PMC4028140, DOI: 10.1016/j.euroneuro.2012.09.008.Peer-Reviewed Original ResearchConceptsPilot studyRisk syndromeSyndrome patientsNegative symptomsShort-term pilot studyEffect sizeAdjunctive antipsychotic medicationOpen-label studyPatients meeting criteriaNMDA receptor functionDurability of effectPsychosis risk symptomsGlycine site agonistsGroup effect sizesWeeks of evaluationAntipsychotic medicationSyndrome subjectsPromising effect sizesTreatment needsLarge effect sizesMeeting criteriaCognitive impairmentReduced symptomsReceptor functionSymptoms
2010
High dose D-serine in the treatment of schizophrenia
Kantrowitz JT, Malhotra AK, Cornblatt B, Silipo G, Balla A, Suckow RF, D'Souza C, Saksa J, Woods SW, Javitt DC. High dose D-serine in the treatment of schizophrenia. Schizophrenia Research 2010, 121: 125-130. PMID: 20541910, PMCID: PMC3111070, DOI: 10.1016/j.schres.2010.05.012.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnalysis of VarianceAntipsychotic AgentsChi-Square DistributionCognition DisordersDose-Response Relationship, DrugFemaleFollow-Up StudiesHumansMaleMiddle AgedNeuropsychological TestsPsychiatric Status Rating ScalesRegression AnalysisSchizophreniaSerineTreatment OutcomeYoung AdultConceptsD-serineBrain N-methyl-D-aspartate receptorsPlasma D-serine levelsN-methyl-D-aspartate receptorsSafety of dosesSignificant dose-dependent increaseDouble-blind investigationOpen-label trialDose-escalation studyDouble-blind studyLarge effect size improvementsTreatment of schizophreniaD-serine levelsPotential novel treatmentPharmacokinetics/pharmacodynamicsDose-dependent increaseNon-significant improvementEffect size improvementsMedication phasePersistent symptomsEscalation studyBrain levelsPlasma levelsPK analysisNeurocognitive dysfunction