2020
Kratom and Pain Tolerance: A Randomized, Placebo-Controlled, Double-Blind Study.
Vicknasingam B, Chooi WT, Rahim AA, Ramachandram D, Singh D, Ramanathan S, Yusof NSM, Zainal H, Murugaiyah V, Gueorguieva R, Mansor SM, Chawarski MC. Kratom and Pain Tolerance: A Randomized, Placebo-Controlled, Double-Blind Study. The Yale Journal Of Biology And Medicine 2020, 93: 229-238. PMID: 32607084, PMCID: PMC7309661.Peer-Reviewed Original ResearchConceptsDouble-blind studyPain toleranceCold pressor taskConsumption of placeboSigns of withdrawalKratom consumptionTraditional medicine useKratom ingestionPain reliefPain onsetInpatient staySafety profileMedicine useWithdrawal symptomsPlacebo drinkHand withdrawalHealth statusVital signsKratom productsSelf-reported dataRandomized sequencePlaceboKratomSignificant increaseDecoction
2018
Atomoxetine for amphetamine-type stimulant dependence during buprenorphine treatment: A randomized controlled trial
Schottenfeld RS, Chawarski MC, Sofuoglu M, Chooi WT, Zaharim NM, M Yasin MA, Ahmad I, Syed Jaapar SZ, Vicknasingam BK. Atomoxetine for amphetamine-type stimulant dependence during buprenorphine treatment: A randomized controlled trial. Drug And Alcohol Dependence 2018, 186: 130-137. PMID: 29573648, PMCID: PMC5911201, DOI: 10.1016/j.drugalcdep.2018.01.017.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic Uptake InhibitorsAdultAmphetamine-Related DisordersAtomoxetine HydrochlorideBehavior TherapyBuprenorphineBuprenorphine, Naloxone Drug CombinationDepressionDouble-Blind MethodHumansMaleMiddle AgedNarcotic AntagonistsOpioid-Related DisordersPilot ProjectsTreatment OutcomeYoung AdultConceptsATS use disorderPlacebo-treated participantsUse disordersAdverse eventsUrine testsPotential efficacyAmphetamine-type stimulant dependenceAmphetamine-type stimulant useSerious adverse eventsBuprenorphine/naloxoneBetween-group differencesATS dependenceClinical tolerabilityMedication discontinuationBuprenorphine treatmentPrimary outcomeOpioid dependenceClinical trialsITT sampleTreat sampleBehavioral counselingDepressive symptomsDays abstinentAtomoxetineStimulant dependence
2015
Aripiprazole and Risperidone for Treatment of Methamphetamine-Associated Psychosis in Chinese Patients
Wang G, Zhang Y, Zhang S, Chen H, Xu Z, Schottenfeld RS, Hao W, Chawarski MC. Aripiprazole and Risperidone for Treatment of Methamphetamine-Associated Psychosis in Chinese Patients. Journal Of Substance Use And Addiction Treatment 2015, 62: 84-88. PMID: 26733277, PMCID: PMC4724444, DOI: 10.1016/j.jsat.2015.11.009.Peer-Reviewed Original ResearchConceptsRisperidone-treated patientsSimpson-Angus ScaleVisual analog scalePsychotic symptomsRisperidone groupSelf-reported adverse effectsClinical Global Impressions-SeverityKaplan-Meier survival analysisAdverse effectsAripiprazole-treated patientsEfficacy of aripiprazoleMethamphetamine-Associated PsychosisExtra-pyramidal symptomsInpatient hospital stayTreatment of methamphetamineNegative Syndrome ScaleGreater methamphetamineHospital stayAripiprazole groupEntire studyAngus ScaleAnalog scaleAcute methamphetamineChinese patientsIllness ScaleExpanding Substance Use Treatment Options for HIV Prevention With Buprenorphine–Naloxone
Metzger DS, Donnell D, Celentano DD, Jackson JB, Shao Y, Aramrattana A, Wei L, Fu L, Ma J, Lucas GM, Chawarski M, Ruan Y, Richardson P, Shin K, Chen RY, Sugarman J, Dye BJ, Rose SM, Beauchamp G, Burns DN. Expanding Substance Use Treatment Options for HIV Prevention With Buprenorphine–Naloxone. JAIDS Journal Of Acquired Immune Deficiency Syndromes 2015, 68: 554-561. PMID: 25564105, PMCID: PMC4382671, DOI: 10.1097/qai.0000000000000510.Peer-Reviewed Original ResearchConceptsInjection-related risk behaviorsBUP/NXRisk behaviorsOpioid useNegative urinalysisTreatment strategiesInjection opioid useOpioid-dependent PWIDThrice-weekly dosingPrimary end pointBuprenorphine/naloxoneOpioid use disorderOpioid-dependent peopleEvidence-based treatmentsBehavioral drugBuprenorphine-naloxoneDose taperingOpioid injectionWeek 78HIV infectionActive treatmentHIV incidenceWeek 26Treatment optionsTreatment completion
2013
Randomized clinical trial of disulfiram for cocaine dependence or abuse during buprenorphine treatment
Schottenfeld RS, Chawarski MC, Cubells JF, George TP, Lappalainen J, Kosten TR. Randomized clinical trial of disulfiram for cocaine dependence or abuse during buprenorphine treatment. Drug And Alcohol Dependence 2013, 136: 36-42. PMID: 24462581, DOI: 10.1016/j.drugalcdep.2013.12.007.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAlcohol DeterrentsAlcoholismAllelesBuprenorphineCocaine-Related DisordersData Interpretation, StatisticalDisulfiramDNADouble-Blind MethodDrug Therapy, CombinationFemaleGenotypeHumansMaleMiddle AgedNarcotic AntagonistsOpioid-Related DisordersPharmacogeneticsPolymerase Chain ReactionSample SizeTreatment OutcomeYoung AdultConceptsUrine testsCocaine useMechanism of actionCocaine dependenceClinical trialsWeeks abstinencePlacebo-controlled clinical trialEfficacy of disulfiramPharmacogenetics of responseDouble-blind treatmentBuprenorphine maintenance treatmentRandomized clinical trialsOpioid-dependent participantsT allele carriersFrequent cocaine useDopamine β-hydroxylaseBuprenorphine treatmentPrimary outcomeTreat comparisonMaintenance treatmentPharmacogenetic interactionsTreatment responseTT genotypeCocaine abstinenceConsecutive weeks
2012
Cost-Effectiveness of Buprenorphine and Naltrexone Treatments for Heroin Dependence in Malaysia
Ruger JP, Chawarski M, Mazlan M, Ng N, Schottenfeld R. Cost-Effectiveness of Buprenorphine and Naltrexone Treatments for Heroin Dependence in Malaysia. PLOS ONE 2012, 7: e50673. PMID: 23226534, PMCID: PMC3514172, DOI: 10.1371/journal.pone.0050673.Peer-Reviewed Original ResearchConceptsHeroin dependenceCost-effectiveness ratioSecondary outcomesOutcome measuresDrug usePlacebo-controlled clinical trialFirst heroin useIncremental cost-effectiveness ratioSocietal costsInjection drug useSecondary outcome measuresPrimary outcome measureIllicit opiate useIncremental treatment costNaltrexone treatmentPrimary outcomeMedication costsPlacebo interventionClinical trialsHeroin abstinenceOpiate useHeroin useBuprenorphineTreatment retentionNaltrexone
2009
The Association between Cocaine Use and Treatment Outcomes in Patients Receiving Office‐Based Buprenorphine/Naloxone for the Treatment of Opioid Dependence
Sullivan LE, Moore BA, O'Connor PG, Barry DT, Chawarski MC, Schottenfeld RS, Fiellin DA. The Association between Cocaine Use and Treatment Outcomes in Patients Receiving Office‐Based Buprenorphine/Naloxone for the Treatment of Opioid Dependence. American Journal On Addictions 2009, 19: 53-58. PMID: 20132122, PMCID: PMC3107713, DOI: 10.1111/j.1521-0391.2009.00003.x.Peer-Reviewed Original ResearchConceptsOpioid-negative urinesBuprenorphine/naloxoneUrine toxicology testsWeeks of treatmentWorse treatment outcomesTreatment outcomesCocaine useTreatment retentionMean weekBuprenorphine/naloxone maintenanceGreater percentageToxicology testsUrine toxicology resultsOpioid dependenceToxicology resultsPatientsTargeted interventionsWeeksNaloxoneOutcomesTreatmentBaselineUrineAssociationPercentage
2008
Maintenance treatment with buprenorphine and naltrexone for heroin dependence in Malaysia: a randomised, double-blind, placebo-controlled trial
Schottenfeld RS, Chawarski MC, Mazlan M. Maintenance treatment with buprenorphine and naltrexone for heroin dependence in Malaysia: a randomised, double-blind, placebo-controlled trial. The Lancet 2008, 371: 2192-2200. PMID: 18586174, PMCID: PMC4041792, DOI: 10.1016/s0140-6736(08)60954-x.Peer-Reviewed Original ResearchConceptsFirst heroin useHIV risk behaviorsHeroin dependenceHeroin useHeroin relapseMaintenance treatmentHeroin abstinenceDrug counsellingComputer-generated randomisation sequenceRisk behaviorsEffective public health approachConsecutive daysInterim safety analysisOutpatient research clinicPlacebo-controlled trialEfficacy of naltrexoneHeroin-dependent patientsMonths of enrollmentPrevention of relapseWorldwide health priorityPublic health approachRandomisation sequencePrimary outcomeHIV transmissionHIV riskBrief Intervention for Hazardous and Harmful Drinkers in the Emergency Department
D'Onofrio G, Pantalon MV, Degutis LC, Fiellin DA, Busch SH, Chawarski MC, Owens PH, O'Connor PG. Brief Intervention for Hazardous and Harmful Drinkers in the Emergency Department. Annals Of Emergency Medicine 2008, 51: 742-750.e2. PMID: 18436340, PMCID: PMC2819119, DOI: 10.1016/j.annemergmed.2007.11.028.Peer-Reviewed Original ResearchConceptsBrief Negotiation InterviewBinge-drinking episodesHarmful drinkersBrief interventionDischarge instructionsPatients 18 yearsRandomized clinical trialsEmergency department settingMean numberInterview groupAlcoholism guidelinesBaseline characteristicsUrban EDAlcohol ingestionED patientsEmergency departmentClinical trialsDepartment settingAlcohol abuseAlcohol consumptionEmergency practitionersTreatment servicesHarmful drinkingMonthsDrinkersLong‐Term Treatment with Buprenorphine/Naloxone in Primary Care: Results at 2–5 Years
Fiellin DA, Moore BA, Sullivan LE, Becker WC, Pantalon MV, Chawarski MC, Barry DT, O'Connor PG, Schottenfeld RS. Long‐Term Treatment with Buprenorphine/Naloxone in Primary Care: Results at 2–5 Years. American Journal On Addictions 2008, 17: 116-120. PMID: 18393054, DOI: 10.1080/10550490701860971.Peer-Reviewed Original ResearchMeSH KeywordsAdultBuprenorphineCombined Modality TherapyCounselingCross-Sectional StudiesDose-Response Relationship, DrugDrug Administration ScheduleDrug Therapy, CombinationFemaleFollow-Up StudiesHeroin DependenceHumansLong-Term CareMaleMiddle AgedNaloxoneNarcotic AntagonistsOpioid-Related DisordersPatient DropoutsPrimary Health CareSubstance Abuse DetectionTreatment OutcomeConceptsOpioid-dependent patientsAdverse eventsSerum transaminasesBuprenorphine/naloxone treatmentSerious adverse eventsBuprenorphine/naloxoneLong-term outcomesOffice-based treatmentIllicit drug useOpioid useClinical stabilityNaloxone treatmentPrimary outcomePatient satisfactionPrimary careTerm treatmentDrug useUrine samplesPatientsTreatmentTransaminaseOutcomesYearsModerate levelsPercent
2007
Patient Satisfaction with Primary Care Office-Based Buprenorphine/Naloxone Treatment
Barry DT, Moore BA, Pantalon MV, Chawarski MC, Sullivan LE, O’Connor P, Schottenfeld RS, Fiellin DA. Patient Satisfaction with Primary Care Office-Based Buprenorphine/Naloxone Treatment. Journal Of General Internal Medicine 2007, 22: 242-245. PMID: 17356993, PMCID: PMC1824745, DOI: 10.1007/s11606-006-0050-y.Peer-Reviewed Original ResearchConceptsBuprenorphine/naloxonePatient satisfactionBuprenorphine/naloxone treatmentDrug treatment historyOpioid-dependent patientsPrimary care officesOpioid-dependent subjectsSubstance use statusOverall satisfaction scoreOffice visit frequencyNaloxone treatmentParticipantsOne hundredPrimary outcomeCare officesFemale genderTreatment historyPatientsNaloxoneSatisfaction scoresEthnicity/raceTreatment locationUse statusVisit frequencyMedicationsTreatment
2006
A Trial of Integrated Buprenorphine/Naloxone and HIV Clinical Care
Sullivan LE, Barry D, Moore BA, Chawarski MC, Tetrault JM, Pantalon MV, O'Connor PG, Schottenfeld RS, Fiellin DA. A Trial of Integrated Buprenorphine/Naloxone and HIV Clinical Care. Clinical Infectious Diseases 2006, 43: s184-s190. PMID: 17109305, DOI: 10.1086/508182.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, SublingualAdultAntiretroviral Therapy, Highly ActiveBuprenorphineDose-Response Relationship, DrugDrug Administration ScheduleFemaleFollow-Up StudiesHIV InfectionsHumansMaleMiddle AgedNaloxoneNarcotic AntagonistsOpioid-Related DisordersPilot ProjectsProbabilityReference ValuesRisk FactorsTreatment OutcomeConceptsHIV clinical careHIV-1 RNA copies/mLBuprenorphine/naloxone treatmentRNA copies/mLCopies/mLOpioid dependenceClinical careOpioid useNaloxone treatmentPhysician managementTreatment retentionHIV type 1 RNA levelsHIV-1 RNA levelsDose of buprenorphinePartial opioid agonistRNA levelsCD4 lymphocyte countBuprenorphine/naloxoneOpioid-dependent patientsUrine toxicology testsWeeks of treatmentHuman immunodeficiency virusUrine test resultsBetter treatment retentionUntreated opioid dependenceCoronary stenting is safe and effective in a high-risk octogenarian patient cohort.
Baklanov DV, Marcu CB, Juhasz DF, Caracciolo EA, Chawarski MC, Donohue TJ. Coronary stenting is safe and effective in a high-risk octogenarian patient cohort. Connecticut Medicine 2006, 70: 15-9. PMID: 16479871.Peer-Reviewed Original ResearchConceptsTarget vessel revascularization rateCoronary stentingProcedural successNew York Heart Association class IIIHigh procedural success rateSerial cardiac enzymesVessel revascularization ratePercent of patientsTIMI 3 flowAcute coronary syndromeMajor cardiac eventsProcedural success rateLow complication rateCoronary heart diseaseCommunity teaching hospitalHigh-risk populationLong-term resultsCoronary stent proceduresAngiographic profileCoronary syndromeIndex hospitalizationRevascularization ratesCardiac eventsComplication rateResidual stenosis
2005
Buprenorphine tablet versus liquid: A clinical trial comparing plasma levels, efficacy, and symptoms
Chawarski MC, Moody DE, Pakes J, O'Connor PG, Schottenfeld RS. Buprenorphine tablet versus liquid: A clinical trial comparing plasma levels, efficacy, and symptoms. Journal Of Substance Use And Addiction Treatment 2005, 29: 307-312. PMID: 16311183, DOI: 10.1016/j.jsat.2005.08.011.Peer-Reviewed Original ResearchConceptsTrough concentrationsPlasma concentrationsOpiate-dependent volunteersIllicit opioid usePeak plasma concentrationBuprenorphine doseBuprenorphine tabletsOpioid useWithdrawal symptomsBuprenorphine levelsPlasma levelsTablet doseClinical trialsLarge intersubjectLiquid formulationStudy participantsIntrasubject variabilityPlasma samplesPeak concentrationTablet formulationLiquid dosesDays of maintenanceSymptomsDoseConcentration curveMethadone Versus Buprenorphine With Contingency Management or Performance Feedback for Cocaine and Opioid Dependence
Schottenfeld RS, Chawarski MC, Pakes JR, Pantalon MV, Carroll KM, Kosten TR. Methadone Versus Buprenorphine With Contingency Management or Performance Feedback for Cocaine and Opioid Dependence. American Journal Of Psychiatry 2005, 162: 340-349. PMID: 15677600, DOI: 10.1176/appi.ajp.162.2.340.Peer-Reviewed Original ResearchConceptsCo-occurring cocaineDrug-free testOpioid dependenceMaintenance treatmentContingency managementOpioid agonist maintenance treatmentAgonist maintenance treatmentDaily sublingual buprenorphineEffects of buprenorphinePrimary outcome measureMixed-model repeated-measures analysisDouble-blind designUrine test resultsNarcotic treatment programsVoucher valueRepeated-measures analysisSublingual buprenorphineTreatment guidelinesIllicit opioidsUrine testsTreatment outcomesOutcome measuresSustained abstinenceWeek 13Buprenorphine
2004
Linking Process and Outcome in the Community Reinforcement Approach for Treating Cocaine Dependence: A Preliminary Report
Pantalon MV, Chawarski MC, Falcioni J, Pakes J, Schottenfeld RS. Linking Process and Outcome in the Community Reinforcement Approach for Treating Cocaine Dependence: A Preliminary Report. The American Journal Of Drug And Alcohol Abuse 2004, 30: 353-367. PMID: 15230080, DOI: 10.1081/ada-120037382.Peer-Reviewed Original ResearchConceptsCommunity Reinforcement ApproachTherapy process variablesCocaine dependenceReinforcement approachPositive therapeutic allianceRating ScalePattern of interrelationshipsBig-picture goalsInterpersonal processesTherapist empathyInterpersonal dimensionsTherapeutic allianceCocaine abstinenceNew rating scaleHomework scoresUrine toxicology testsConsecutive weeks
2002
Treatment of heroin dependence with buprenorphine in primary care
Fiellin DA, Pantalon MV, Pakes JP, O'Connor PG, Chawarski M, Schottenfeld RS. Treatment of heroin dependence with buprenorphine in primary care. The American Journal Of Drug And Alcohol Abuse 2002, 28: 231-241. PMID: 12014814, DOI: 10.1081/ada-120002972.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, SublingualAdultAmbulatory CareBuprenorphineCombined Modality TherapyConnecticutCounselingDose-Response Relationship, DrugDrug Administration ScheduleFeasibility StudiesFemaleHeroin DependenceHumansMaleMiddle AgedPrimary Health CareSocial SupportTreatment OutcomeUrban PopulationConceptsUrine toxicologyHeroin dependencePrimary careBrief counselingUrine toxicology testsHeroin-dependent patientsPrimary care settingPrimary care centersUrban medical centerBuprenorphine maintenancePrimary outcomeDependent patientsCare centerClinical trialsCare settingsMedical CenterEffective treatmentTreatment retentionBuprenorphinePatientsPotential efficacyToxicology testsMaintenance phaseWeeksCare
2000
Community reinforcement approach for combined opioid and cocaine dependence Patterns of engagement in alternate activities
Schottenfeld R, Pantalon M, Chawarski M, Pakes J, M.Ed. Community reinforcement approach for combined opioid and cocaine dependence Patterns of engagement in alternate activities. Journal Of Substance Use And Addiction Treatment 2000, 18: 255-261. PMID: 10742639, DOI: 10.1016/s0740-5472(99)00062-8.Peer-Reviewed Original ResearchConceptsCommunity Reinforcement ApproachNondrug-related activitiesDrug useGroup drug counselingClinical trialsDrug counselingReinforcement approachCocaine dependenceCurrent trialOpioidsAbstinenceSignificant differencesPatientsTrialsAlternate activitiesAverage hoursEffective overallTotal numberHoursRecreational activitiesActivityWeeksCocaine