2013
Investigation of the Interactions between Methadone and Elvitegravir-Cobicistat in Subjects Receiving Chronic Methadone Maintenance
Bruce RD, Winkle P, Custodio JM, Wei X, Rhee MS, Kearney BP, Ramanathan S, Friedland GH. Investigation of the Interactions between Methadone and Elvitegravir-Cobicistat in Subjects Receiving Chronic Methadone Maintenance. Antimicrobial Agents And Chemotherapy 2013, 57: 6154-6157. PMID: 24080665, PMCID: PMC3837895, DOI: 10.1128/aac.01229-13.Peer-Reviewed Original ResearchConceptsEVG/COBIBaseline valuesEffect of elvitegravirOpioid-dependence therapiesHIV-seronegative subjectsConcentration-time curveChronic methadone maintenanceDependence therapyOpioid withdrawalMethadone pharmacokineticsDosing periodMethadone maintenanceHistorical controlsPharmacodynamic studiesPharmacokinetic parametersMethadoneCobicistatElvitegravirMean areaAUCtauPharmacodynamicsCmaxSubjectsCOBISteady-state evaluation
2006
Interactions between Buprenorphine and Antiretrovirals. II. The Protease Inhibitors Nelfinavir, Lopinavir/Ritonavir, and Ritonavir
McCance-Katz EF, Moody DE, Smith PF, Morse GD, Friedland G, Pade P, Baker J, Alvanzo A, Jatlow P, Rainey PM. Interactions between Buprenorphine and Antiretrovirals. II. The Protease Inhibitors Nelfinavir, Lopinavir/Ritonavir, and Ritonavir. Clinical Infectious Diseases 2006, 43: s235-s246. PMID: 17109310, DOI: 10.1086/508188.Peer-Reviewed Original ResearchMeSH KeywordsAdultBuprenorphineCase-Control StudiesCohort StudiesDose-Response Relationship, DrugDrug Administration ScheduleDrug InteractionsFemaleHIV Protease InhibitorsHIV SeronegativityHumansLopinavirMaleNarcotic AntagonistsNelfinavirOpioid-Related DisordersProbabilityPyrimidinonesReference ValuesRisk AssessmentRitonavirConceptsLPV/rLopinavir/ritonavirProtease inhibitor nelfinavirOpioid dependenceAdministration of ritonavirOpioid partial agonistAdjustment of dosesHuman immunodeficiency virusConcentration-time curveHealthy control participantsPI administrationPI pharmacokineticsHIV diseaseNegative volunteersImmunodeficiency virusOpiate withdrawalDrug interactionsBuprenorphineRitonavirPartial agonistNelfinavirControl participantsPharmacokinetic studyAdministrationSignificant increaseInteractions between Buprenorphine and Antiretrovirals. I. The Nonnucleoside Reverse-Transcriptase Inhibitors Efavirenz and Delavirdine
McCance-Katz EF, Moody DE, Morse GD, Friedland G, Pade P, Baker J, Alvanzo A, Smith P, Ogundele A, Jatlow P, Rainey PM. Interactions between Buprenorphine and Antiretrovirals. I. The Nonnucleoside Reverse-Transcriptase Inhibitors Efavirenz and Delavirdine. Clinical Infectious Diseases 2006, 43: s224-s234. PMID: 17109309, DOI: 10.1086/508187.Peer-Reviewed Original ResearchMeSH KeywordsAdultAlkynesArea Under CurveBenzoxazinesBuprenorphineCase-Control StudiesCohort StudiesCyclopropanesDelavirdineDose-Response Relationship, DrugDrug Administration ScheduleDrug InteractionsFemaleHIV InfectionsHumansMaleNarcotic AntagonistsOpioid-Related DisordersOxazinesProbabilityPrognosisReference ValuesReverse Transcriptase InhibitorsRisk AssessmentStatistics, NonparametricTreatment OutcomeConceptsNonnucleoside reverse transcriptase inhibitor efavirenzReverse transcriptase inhibitor efavirenzInhibitor efavirenzPharmacokinetics of buprenorphineOpiate withdrawal symptomsAdjustment of dosesEffects of buprenorphineHuman immunodeficiency virusConcentration-time curveOpioid-dependent participantsHealthy control participantsAntiretroviral administrationAdverse eventsAgonist medicationsHIV diseaseNegative volunteersStandard dosesOpioid dependenceImmunodeficiency virusBuprenorphine concentrationsWithdrawal symptomsAntiretroviral pharmacokineticsDrug interactionsOpiate dependenceBuprenorphine
2005
Lack of an effect of atazanavir on steady-state pharmacokinetics of methadone in patients chronically treated for opiate addiction
Friedland G, Andrews L, Schreibman T, Agarwala S, Daley L, Child M, Shi J, Wang Y, O'Mara E. Lack of an effect of atazanavir on steady-state pharmacokinetics of methadone in patients chronically treated for opiate addiction. AIDS 2005, 19: 1635-1641. PMID: 16184033, DOI: 10.1097/01.aids.0000183628.20041.f2.Peer-Reviewed Original ResearchConceptsOpiate withdrawalPharmacokinetic interactionsChronic methadone therapyDaily protease inhibitorEffect of atazanavirIsomers of methadonePlasma maximal concentrationPlasma trough concentrationsEffective antiretroviral treatmentRelevant pharmacokinetic interactionsSteady-state pharmacokineticsConcentration-time curveSubstance abuse treatmentHIV diseaseTrough concentrationsAntiretroviral treatmentHIV infectionMethadone therapyDaily administrationDosage adjustmentAntiretroviral drugsBioequivalence rangePharmacological interactionsPlasma concentrationsRelevant symptoms
2003
The Protease Inhibitor Lopinavir-Ritonavir May Produce Opiate Withdrawal in Methadone-Maintained Patients
McCance-Katz EF, Rainey PM, Friedland G, Jatlow P. The Protease Inhibitor Lopinavir-Ritonavir May Produce Opiate Withdrawal in Methadone-Maintained Patients. Clinical Infectious Diseases 2003, 37: 476-482. PMID: 12905130, DOI: 10.1086/376907.Peer-Reviewed Original ResearchConceptsLopinavir-ritonavirMethadone metabolismSubstance abuse pharmacotherapyOpiate withdrawal symptomsInjection drug usersConcentration-time curveMethadone areaMethadone dosesHIV diseaseMethadone concentrationsOral clearancePharmacodynamic interactionsWithdrawal symptomsOpiate withdrawalClinical monitoringDrug usersSame dosageRitonavirPotent inducerPatientsMethadoneProtease inhibitorsSignificant reductionR formulationTreatment
2002
The Pharmacokinetics of Methadone Following Co‐Administration with a Lamivudine/Zidovudine Combination Tablet in Opiate‐Dependent Subjects
Rainey PM, Friedland GH, Snidow JW, McCance‐Katz E, Mitchell SM, Andrews L, Lane B, Jatlow P. The Pharmacokinetics of Methadone Following Co‐Administration with a Lamivudine/Zidovudine Combination Tablet in Opiate‐Dependent Subjects. American Journal On Addictions 2002, 11: 66-74. PMID: 11876585, DOI: 10.1080/10550490252801657.Peer-Reviewed Original ResearchConceptsSerum concentrationsCombination tabletSerum concentration-time curveMethadone dose changesMethadone serum concentrationsMaximum serum concentrationOpiate-dependent subjectsConcentration-time curveVolume of distributionCombination pharmacotherapyMethadone pharmacokineticsTerminal eliminationCo-administrationDose changesMean areaSignificant differencesPharmacokineticsSubjectsSubject studyHIVPharmacotherapyPatientsAdministration
1992
Pharmacokinetic interactions of zidovudine and methadone in intravenous drug-using patients with HIV infection.
Schwartz E, Brechbühl A, Kahl P, Miller M, Selwyn P, Friedland G. Pharmacokinetic interactions of zidovudine and methadone in intravenous drug-using patients with HIV infection. JAIDS Journal Of Acquired Immune Deficiency Syndromes 1992, 5: 619-26. PMID: 1588496.Peer-Reviewed Original ResearchConceptsIntravenous drug usersControl patientsMethadone patientsPharmacokinetic parametersHigh-pressure liquid chromatographyFormer intravenous drug usersIntravenous drug-using patientsMethadone maintenance therapyDrug-using patientsConcentration-time curveHuman hepatic microsomesZDV levelsZDV therapyZDV treatmentMaintenance therapyMethadone concentrationsMethadone groupHIV infectionPharmacokinetic interactionsSerum levelsConcurrent administrationIVDU patientsUrinary excretionPatientsZidovudine