2021
Application of Chinese version of behavioral activation for depression scale in patients in methadone maintenance treatment
Ma H, Chen Y, Yan H, Liu P, Wang X, Daughters S, Chawarski M, Zhou W. Application of Chinese version of behavioral activation for depression scale in patients in methadone maintenance treatment. Chinese Journal Of Behavioral Medicine And Brain Science 2021, 30: 459-464. DOI: 10.3760/cma.j.cn371468-20200723-01586.Peer-Reviewed Original ResearchMethadone maintenance treatmentMaintenance treatmentDepression ScaleBehavioral activationTotal scoreItem-total score correlation coefficientsChinese versionWork/schoolExploratory factor analysisGood internal consistency reliabilityMMT programOpioid addictsActivation subscaleInternal consistency reliabilityPatientsCronbach's αAvoidance/Split-half reliability coefficientConsistency reliabilityConfirmatory factor analysisSubscalesActivationSPSS 21.0Correlation coefficientBehavior activationCOVID-19 Impact on Healthcare and Supportive Services for People Who Use Drugs (PWUDs) in Malaysia
Vicknasingam B, Salleh N, Chooi WT, Singh D, Zaharim N, Kamarulzaman A, Chawarski MC. COVID-19 Impact on Healthcare and Supportive Services for People Who Use Drugs (PWUDs) in Malaysia. Frontiers In Psychiatry 2021, 12: 630730. PMID: 33854449, PMCID: PMC8039131, DOI: 10.3389/fpsyt.2021.630730.Peer-Reviewed Original ResearchMethadone maintenance treatment programTake-home dosesMaintenance treatment programCOVID-19 infectionDelivery of medicationsSupportive servicesHIV clinicMMT patientsTreatment disruptionPerson visitsTreatment protocolPatient's homeStudy participantsTreatment programCOVID-19 epidemicPatient flowTelemedicine resourcesCOVID-19 responseMedical personnelMedicationsPatientsLower ratesSemi-structured formatMovement Control OrderRecipients
2020
Use of Amphetamine-Type Stimulants Among Emergency Department Patients With Untreated Opioid Use Disorder
Chawarski MC, Hawk K, Edelman EJ, O'Connor P, Owens P, Martel S, Coupet E, Whiteside L, Tsui JI, Rothman R, Cowan E, Richardson L, Lyons MS, Fiellin DA, D'Onofrio G. Use of Amphetamine-Type Stimulants Among Emergency Department Patients With Untreated Opioid Use Disorder. Annals Of Emergency Medicine 2020, 76: 782-787. PMID: 32782084, PMCID: PMC8048036, DOI: 10.1016/j.annemergmed.2020.06.046.Peer-Reviewed Original ResearchConceptsUntreated opioid use disorderOpioid use disorderAmphetamine-type stimulant useUse disordersStimulant useAmphetamine-type stimulantsStudy admissionEmergency departmentEmergency department patientsImplementation science studyUrine test resultsFalse discovery rate correctionSubstance use problemsHepatitis CED visitsDepartment patientsReferral protocolsED patientsUrine testsDrug injectionOverdose riskPatientsHealth factorsUnstable housingConcurrent use
2017
Cost‐effectiveness of emergency department‐initiated treatment for opioid dependence
Busch SH, Fiellin DA, Chawarski MC, Owens PH, Pantalon MV, Hawk K, Bernstein SL, O'Connor PG, D'Onofrio G. Cost‐effectiveness of emergency department‐initiated treatment for opioid dependence. Addiction 2017, 112: 2002-2010. PMID: 28815789, PMCID: PMC5657503, DOI: 10.1111/add.13900.Peer-Reviewed Original ResearchConceptsCost-effectiveness acceptability curvesOpioid dependenceCommunity-based treatmentBrief interventionAcceptability curvesPast weekHealth care system costsHealth care system perspectiveAddiction treatmentOpioid-dependent patientsPatient time costsHealth care useFormal addiction treatmentBuprenorphine treatmentUrban EDEmergency departmentPrimary carePatient engagementTreatment engagementPatientsReferralSecondary analysisBuprenorphineNumber of daysInterventionEmergency Department-Initiated Buprenorphine for Opioid Dependence with Continuation in Primary Care: Outcomes During and After Intervention
D’Onofrio G, Chawarski MC, O’Connor P, Pantalon MV, Busch SH, Owens PH, Hawk K, Bernstein SL, Fiellin DA. Emergency Department-Initiated Buprenorphine for Opioid Dependence with Continuation in Primary Care: Outcomes During and After Intervention. Journal Of General Internal Medicine 2017, 32: 660-666. PMID: 28194688, PMCID: PMC5442013, DOI: 10.1007/s11606-017-3993-2.Peer-Reviewed Original ResearchConceptsIllicit opioid useOpioid usePrimary careHIV riskBrief interventionAddiction treatmentBuprenorphine groupEmergency Department-Initiated BuprenorphineCohort of patientsLong-term followLong-term outcomesFormal addiction treatmentSignificant differencesMain MeasuresSelfStudy entryUrine toxicologyBuprenorphine/Opioid dependenceED interventionsUrine resultsBuprenorphineTreatment engagementDrug useReferralPatients
2015
Pilot study of atomoxetine for BUP/NX-maintained patients with co-occurring opioid and ATS use disorder
Schottenfeld R, Chawarski M, Sofuoglu M, Chooi W, Zaharim N, Yasin M, Ahmad I, Jaapar S, Kasinather V. Pilot study of atomoxetine for BUP/NX-maintained patients with co-occurring opioid and ATS use disorder. Drug And Alcohol Dependence 2015, 156: e200. DOI: 10.1016/j.drugalcdep.2015.07.538.Peer-Reviewed Original ResearchBuprenorphine/naloxone treatment practices in Malaysia: Results of national surveys of physicians and patients
Vicknasingam B, Dazali MN, Singh D, Schottenfeld RS, Chawarski MC. Buprenorphine/naloxone treatment practices in Malaysia: Results of national surveys of physicians and patients. Drug And Alcohol Dependence 2015, 152: 164-169. PMID: 25935736, DOI: 10.1016/j.drugalcdep.2015.04.007.Peer-Reviewed Original ResearchConceptsBUP/NXNX treatmentGeneral practitionersPast monthOpiate positive urine testsOptimal treatment effectivenessRoutine toxicology testingToxicology testingBuprenorphine/naloxonePositive urine testUrine toxicology testingIllicit opiate useInjection of heroinInjection of drugsCross-sectional surveyMaintenance treatmentPatient surveyUrine testingUrine testsTreatment responseOpiate usePatient experiencePatientsDispensing practicesDrug use
2012
Psychiatrist Decision-Making Towards Prescribing Benzodiazepines: The Dilemma with Substance Abusers
Marienfeld CB, Tek E, Diaz E, Schottenfeld R, Chawarski M. Psychiatrist Decision-Making Towards Prescribing Benzodiazepines: The Dilemma with Substance Abusers. Psychiatric Quarterly 2012, 83: 521-529. PMID: 22528141, DOI: 10.1007/s11126-012-9220-8.Peer-Reviewed Original ResearchConceptsMental health centersPrescribing benzodiazepinesHealth centersPublic mental health centersSubstance abuseCommunity mental health centerUse of benzodiazepinesPercent of responsesOutpatient psychiatristsPatient characteristicsUnknown patientsPatient historyCommon reasonPatient useHistory of abuseBenzodiazepinesIllicit substancesSubstance abusersAnonymous surveyPatientsPsychiatristsPsychiatrists' decisionsAbusePrevious studiesA Brief Intervention Reduces Hazardous and Harmful Drinking in Emergency Department Patients
D'Onofrio G, Fiellin DA, Pantalon MV, Chawarski MC, Owens PH, Degutis LC, Busch SH, Bernstein SL, O'Connor PG. A Brief Intervention Reduces Hazardous and Harmful Drinking in Emergency Department Patients. Annals Of Emergency Medicine 2012, 60: 181-192. PMID: 22459448, PMCID: PMC3811141, DOI: 10.1016/j.annemergmed.2012.02.006.Peer-Reviewed Original ResearchConceptsBrief Negotiation InterviewStandard careEmergency department patientsBrief interventionAlcohol consumptionDepartment patientsHarmful drinkersDrinking outcomesHarmful drinkingAssessment groupStandard care groupAdult ED patientsNegative health behaviorsSecondary outcomesPrimary outcomeED patientsCare groupED settingTelephone boosterBooster groupBinge episodesHealth behaviorsPatientsAlcohol useCare
2011
Costs of Addressing Heroin Addiction in Malaysia and 32 Comparable Countries Worldwide
Ruger JP, Chawarski M, Mazlan M, Luekens C, Ng N, Schottenfeld R. Costs of Addressing Heroin Addiction in Malaysia and 32 Comparable Countries Worldwide. Health Services Research 2011, 47: 865-887. PMID: 22091732, PMCID: PMC3419893, DOI: 10.1111/j.1475-6773.2011.01335.x.Peer-Reviewed Original ResearchConceptsBuprenorphine treatmentOpioid dependence treatmentBlood testingDependence treatmentHeroin addictionHealth systemOpiate usersSimilar interventionsIncremental costLao People's Democratic RepublicPatientsHeroin problemTreatmentGreater percentagePeople's Democratic RepublicInterventionDemocratic RepublicMedicationsBuprenorphineNaltrexoneRCTs
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
Long‐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 levelsPercentMajor depression and recent physical or sexual abuse increase readmissions among high-utilising primary care patients.
Levine JM, Brown KE, Chawarski M, Fiellin DA, White WD, Sledge WH. Major depression and recent physical or sexual abuse increase readmissions among high-utilising primary care patients. Mental Health In Family Medicine 2008, 5: 23-8. PMID: 22477843, PMCID: PMC2777549.Peer-Reviewed Original ResearchPrimary care patientsMajor depressionHospital admissionCare patientsInner city primary care patientsPast-year abuseAcute physical effectsGeneral hospital admissionsCurrent major depressionChronic disease managementMajor depressive disorderAbuse Assessment ScreenMedical service utilisationPRIME-MDSurgical hospitalisationHospitalisation ratesService utilisationMedical recordsDepressive disorderMethods NinetyHistory of abuseNon-abused subjectsPatientsDisease managementDepression
2007
Buprenorphine/naloxone treatment in primary care is associated with decreased human immunodeficiency virus risk behaviors
Sullivan LE, Moore BA, Chawarski MC, Pantalon MV, Barry D, O'Connor PG, Schottenfeld RS, Fiellin DA. Buprenorphine/naloxone treatment in primary care is associated with decreased human immunodeficiency virus risk behaviors. Journal Of Substance Use And Addiction Treatment 2007, 35: 87-92. PMID: 17933486, PMCID: PMC2587397, DOI: 10.1016/j.jsat.2007.08.004.Peer-Reviewed Original ResearchConceptsBuprenorphine/naloxone treatmentNaloxone treatmentHIV risk behaviorsHIV riskRisk behaviorsHuman immunodeficiency virus (HIV) risk behaviorsDrug-related HIV riskHuman immunodeficiency virus (HIV) riskSex-related HIV risk behaviorsBuprenorphine/naloxoneIntravenous drug useOpioid-dependent personsPrimary care clinicsInconsistent condom useBuprenorphine/Care clinicsMethadone treatmentPrimary careDrug useSteady partnerCondom useBaselineWeeksTreatmentPatientsPrimary Care Office-based Buprenorphine Treatment: Comparison of Heroin and Prescription Opioid Dependent Patients
Moore BA, Fiellin DA, Barry DT, Sullivan LE, Chawarski MC, O’Connor P, Schottenfeld RS. Primary Care Office-based Buprenorphine Treatment: Comparison of Heroin and Prescription Opioid Dependent Patients. Journal Of General Internal Medicine 2007, 22: 527-530. PMID: 17372805, PMCID: PMC1829433, DOI: 10.1007/s11606-007-0129-0.Peer-Reviewed Original ResearchConceptsPrescription opioid useOpioid useOnly patientsPrescription opioidsTreatment outcomesBuprenorphine/naloxone maintenanceBuprenorphine/naloxone treatmentOpioid-negative urine samplesPrescription opioid-dependent patientsHepatitis C antibodyDrug treatment historyOpioid-dependent patientsPrimary care officesOffice-based settingClinical characteristicsBuprenorphine treatmentNaloxone treatmentBuprenorphine/Opioid dependenceCare officesDependent patientsTreatment responseC antibodyHeroin usePatientsPatient 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
Counseling plus Buprenorphine–Naloxone Maintenance Therapy for Opioid Dependence
Fiellin DA, Pantalon MV, Chawarski MC, Moore BA, Sullivan LE, O'Connor PG, Schottenfeld RS. Counseling plus Buprenorphine–Naloxone Maintenance Therapy for Opioid Dependence. New England Journal Of Medicine 2006, 355: 365-374. PMID: 16870915, DOI: 10.1056/nejmoa055255.Peer-Reviewed Original ResearchConceptsStandard medical managementBuprenorphine-naloxone treatmentIllicit opioid useMedical managementOpioid dependenceWeekly medicationOpioid useIllicit opioidsWeekly counselingPrimary careUrine specimensConsecutive weeksProportion of patientsImproved treatment outcomesMaintenance therapyPrimary outcomeClinical trialsMedication distributionSimilar efficacyTreatment outcomesMedicationsSelf-reported frequencyPatientsFrequency of attendanceMean percentage
2005
The practice of office-based buprenorphine treatment of opioid dependence: is it associated with new patients entering into treatment?
Sullivan LE, Chawarski M, O’Connor P, Schottenfeld RS, Fiellin DA. The practice of office-based buprenorphine treatment of opioid dependence: is it associated with new patients entering into treatment? Drug And Alcohol Dependence 2005, 79: 113-116. PMID: 15943950, DOI: 10.1016/j.drugalcdep.2004.12.008.Peer-Reviewed Original ResearchConceptsPrimary care clinicsInjection drug useOpioid treatment programsMethadone treatmentOpioid dependenceClinical trialsTreatment outcomesHistory of IDUOffice-based buprenorphine treatmentOffice-based buprenorphineBuprenorphine/naloxoneOffice-based treatmentLower ratesHepatitis CClinical characteristicsBuprenorphine treatmentCare clinicsMethadone maintenancePCC patientsNew patientsTreatment retentionPatientsDrug useTreatment programBuprenorphine
2004
Counseling Requirements for Buprenorphine Maintenance in Primary Care
Pantalon M, Fiellin D, O’Connor P, Chawarski M, Pakes J, Schottenfeld R. Counseling Requirements for Buprenorphine Maintenance in Primary Care. Addictive Disorders & Their Treatment 2004, 3: 71-76. DOI: 10.1097/00132576-200406000-00003.Peer-Reviewed Original ResearchUrine toxicology testsMedical managementPrimary care settingBuprenorphine maintenanceCare settingsDrug counselingCounseling requirementsToxicology testsBuprenorphine-maintained patientsOpioid-dependent patientsMethadone maintenance programIndividual drug counselingBuprenorphine treatmentOpioid dependenceDependent patientsPrimary carePatientsConsecutive weeksDrug counselorsStatistical significanceWeeksPreliminary feasibilityPreliminary findingsEfficacyCounselingProcesses of Care During a Randomized Trial of Office‐based Treatment of Opioid Dependence in Primary Care
Fiellin DA, O'Connor PG, Chawarski M, Schottenfeld RS. Processes of Care During a Randomized Trial of Office‐based Treatment of Opioid Dependence in Primary Care. American Journal On Addictions 2004, 13: s67-s78. PMID: 15204676, DOI: 10.1080/10550490490440843.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultFemaleFocus GroupsHumansMaleMedical AuditMethadoneMiddle AgedMulticenter Studies as TopicNarcoticsOffice VisitsOpioid-Related DisordersOutcome and Process Assessment, Health CarePrimary Health CareProcess Assessment, Health CareQuality Assurance, Health CareRandomized Controlled Trials as TopicReferral and ConsultationSubstance Abuse DetectionTreatment RefusalUnited StatesConceptsUrine toxicology resultsProcess of careOpioid dependenceChart auditToxicology resultsOpioid treatment programsOffice-based careOffice-based treatmentDependent patientsMethadone maintenancePrimary carePsychiatric servicesFocus groupsQuality careTreatment programCareTreatmentTrialsAuditMedicationsBuprenorphinePatientsMethadoneGroupEvaluation of processes