Featured Publications
Illusory generalizability of clinical prediction models
Chekroud A, Hawrilenko M, Loho H, Bondar J, Gueorguieva R, Hasan A, Kambeitz J, Corlett P, Koutsouleris N, Krumholz H, Krystal J, Paulus M. Illusory generalizability of clinical prediction models. Science 2024, 383: 164-167. PMID: 38207039, DOI: 10.1126/science.adg8538.Peer-Reviewed Original ResearchJoint Modelling of Longitudinal Outcome and Interval-Censored Competing Risk Dropout in a Schizophrenia Clinical Trial
Gueorguieva R, Rosenheck R, Lin H. Joint Modelling of Longitudinal Outcome and Interval-Censored Competing Risk Dropout in a Schizophrenia Clinical Trial. Journal Of The Royal Statistical Society Series A (Statistics In Society) 2011, 175: 417-433. PMID: 22468033, PMCID: PMC3315284, DOI: 10.1111/j.1467-985x.2011.00719.x.Peer-Reviewed Original ResearchLongitudinal outcomesClinical Antipsychotic TrialsQuality of lifeSchizophrenia clinical trialsStudy medicationAntipsychotic medicationClinical trialsAntipsychotic TrialsStudy participantsPhase IIntervention effectivenessMedicationsSignificant differencesSelection biasTrialsOutcomesJoint modelling approachCauses of dropoutLarge percentageParticipantsTolerabilityPatientsOutcome valuesEffect of dropoutStudy schedule
2023
Randomized Trial of Mindfulness- and Reappraisal-Based Regulation of Craving Training Among Daily Cigarette Smokers
Roos C, Harp N, Vafaie N, Gueorguieva R, Frankforter T, Carroll K, Kober H. Randomized Trial of Mindfulness- and Reappraisal-Based Regulation of Craving Training Among Daily Cigarette Smokers. Psychology Of Addictive Behaviors 2023, 37: 829-840. PMID: 37535555, PMCID: PMC10834831, DOI: 10.1037/adb0000940.Peer-Reviewed Original ResearchCue-induced cravingDaily cigarette smokersGreater reductionSmoking-related imagesRandomized trialsCigarette smokersDaily smokersQuit ratesSmokingLarge effect sizesIntervention phaseIntervention controlCravingSmokersComputerized interventionSignificant increaseCBTEffect sizeEntire studyInterventionControlPostinterventionROCRegulationTrials
2022
Correction to: Dose-related effects of ketamine for antidepressant-resistant symptoms of posttraumatic stress disorder in veterans and active duty military: a double-blind, randomized, placebo-controlled multi-center clinical trial
Abdallah CG, Roache JD, Gueorguieva R, Averill LA, Young-McCaughan S, Shiroma PR, Purohit P, Brundige A, Murff W, Ahn KH, Sherif MA, Baltutis EJ, Ranganathan M, D’Souza D, Martini B, Southwick SM, Petrakis IL, Burson RR, Guthmiller KB, López-Roca AL, Lautenschlager KA, McCallin JP, Hoch MB, Timchenko A, Souza SE, Bryant CE, Mintz J, Litz BT, Williamson DE, Keane TM, Peterson AL, Krystal JH. Correction to: Dose-related effects of ketamine for antidepressant-resistant symptoms of posttraumatic stress disorder in veterans and active duty military: a double-blind, randomized, placebo-controlled multi-center clinical trial. Neuropsychopharmacology 2022, 47: 1583-1584. PMID: 35545665, PMCID: PMC9205895, DOI: 10.1038/s41386-022-01339-9.Peer-Reviewed Original ResearchReducing the Duration of Untreated Psychosis (DUP) in a US Community: A Quasi-Experimental Trial
Srihari VH, Ferrara M, Li F, Kline E, Gülöksüz S, Pollard JM, Cahill JD, Mathis WS, Sykes L, Walsh BC, McDermott G, Seidman LJ, Gueorguieva R, Woods SW, Tek C, Keshavan MS. Reducing the Duration of Untreated Psychosis (DUP) in a US Community: A Quasi-Experimental Trial. Schizophrenia Bulletin Open 2022, 3: sgab057. PMID: 35295656, PMCID: PMC8919192, DOI: 10.1093/schizbullopen/sgab057.Peer-Reviewed Original ResearchUntreated psychosisUS communitiesEarly detection campaignsFirst-episode servicesEffectiveness of careNumber of referralsQuasi-experimental trialEarly detection effortsOutcome measuresPsychosis onsetSecond quartileRapid enrollmentThird quartileQuartilePrEPDUPDetection campaignsDetection effortsReferralPsychosisU.S. communitiesTrialsAMPFESDuration
2021
The effect of varenicline on smoking and drinking outcomes among Black and White adults with alcohol use disorder and co-occurring cigarette smoking: A secondary analysis of two clinical trials
Haeny AM, Gueorguieva R, Montgomery L, Bold KW, Fucito LM, Wu R, Muvvala SB, Zweben A, O'Malley SS. The effect of varenicline on smoking and drinking outcomes among Black and White adults with alcohol use disorder and co-occurring cigarette smoking: A secondary analysis of two clinical trials. Addictive Behaviors 2021, 122: 106970. PMID: 34216871, PMCID: PMC9426655, DOI: 10.1016/j.addbeh.2021.106970.Peer-Reviewed Original ResearchConceptsEffects of vareniclineAlcohol use disorderCigarette smokingClinical trialsUse disordersWhite adultsEfficacy of vareniclineNumber of drinksVareniclineSmokingPrimary analysisAlcohol treatmentSecondary analysisAlcohol useTrialsBlack participantsDrinking outcomesLinear mixed modelsAdultsWhite peopleWhite participantsMixed modelingCigarettesDisordersTreatmentRandomized Controlled Trial of Treatments for Loss‐of‐Control Eating Following Bariatric Surgery
Grilo CM, Ivezaj V, Duffy AJ, Gueorguieva R. Randomized Controlled Trial of Treatments for Loss‐of‐Control Eating Following Bariatric Surgery. Obesity 2021, 29: 689-697. PMID: 33694287, PMCID: PMC7995173, DOI: 10.1002/oby.23124.Peer-Reviewed Original ResearchConceptsBariatric surgeryWeight lossAllied health cliniciansBariatric surgery outcomesThree-month treatmentSelf-help treatmentBariatric surgery settingsSignificant differencesControlled TrialsSurgery settingSurgery outcomesTreatment outcomesHealth cliniciansPosttreatment outcomesNon-White participantsControl eatingSurgeryTrialsOutcomesTreatmentPatientsCategorical outcomesWhite participantsAbstinenceHigher proportion
2018
Craving to Quit: A Randomized Controlled Trial of Smartphone App–Based Mindfulness Training for Smoking Cessation
Garrison KA, Pal P, O’Malley S, Pittman BP, Gueorguieva R, Rojiani R, Scheinost D, Dallery J, Brewer JA. Craving to Quit: A Randomized Controlled Trial of Smartphone App–Based Mindfulness Training for Smoking Cessation. Nicotine & Tobacco Research 2018, 22: 324-331. PMID: 29917096, PMCID: PMC7297096, DOI: 10.1093/ntr/nty126.Peer-Reviewed Original ResearchConceptsMindfulness trainingExperience samplingPreliminary evidenceSmartphone appPoint prevalence abstinence ratesMindfulnessSmoking cessationTreatment startersSmoking ratesGroup differencesGroup interactionCravingStrong positive associationAbstinence ratesTrainingTreatment completionPositive associationControlled TrialsTreat approachSmokingTrialsCigarettesMonthsAppsAssociation
2012
Efficacy of pimozide augmentation for clozapine partial responders with schizophrenia
Gunduz-Bruce H, Oliver S, Gueorguieva R, Forselius-Bielen K, D'Souza DC, Zimolo Z, Tek C, Kaliora S, Ray S, Petrides G. Efficacy of pimozide augmentation for clozapine partial responders with schizophrenia. Schizophrenia Research 2012, 143: 344-347. PMID: 23219861, DOI: 10.1016/j.schres.2012.11.008.Peer-Reviewed Original ResearchConceptsBrief Psychiatric Rating ScaleTreatment-resistant schizophreniaClinical trialsNegative symptomsDouble-blind placeboAdequate blood levelsPsychiatric Rating ScaleNeurocognitive measuresAttention/executive functionBPRS totalPartial respondersPartial responseStudy entryQTc intervalBlood levelsClozapine's effectSide effectsNeurocognitive functionPatientsWeekly assessmentsClozapineNeurocognitive testsRating ScaleSchizophreniaTrials
2003
Transcranial Magnetic Stimulation of Left Temporoparietal Cortex and Medication-Resistant Auditory Hallucinations
Hoffman RE, Hawkins KA, Gueorguieva R, Boutros NN, Rachid F, Carroll K, Krystal JH. Transcranial Magnetic Stimulation of Left Temporoparietal Cortex and Medication-Resistant Auditory Hallucinations. JAMA Psychiatry 2003, 60: 49-56. PMID: 12511172, DOI: 10.1001/archpsyc.60.1.49.Peer-Reviewed Original ResearchConceptsRepetitive transcranial magnetic stimulationMedication-resistant auditory hallucinationsTranscranial magnetic stimulationLeft temporoparietal cortexAuditory hallucinationsSham stimulationMagnetic stimulationTemporoparietal cortexOpen-label trialMotor thresholdAntipsychotic medicationSustained reductionBrain areasSchizoaffective disorderCortical activationPossible treatmentNeuropsychological impairmentNeuropsychological assessmentPatientsAdditional studiesCortexStimulationTrialsHallucinationsTreatment effects