1991
L-Deprenyl (Selegiline) Added to Sinemet CR in the Management of Parkinson's Disease Patients With Motor Response Fluctuations.
Cedarbaum JM, Toy LH, Green-Parsons A. L-Deprenyl (Selegiline) Added to Sinemet CR in the Management of Parkinson's Disease Patients With Motor Response Fluctuations. Clinical Neuropharmacology 1991, 14: 228. PMID: 1906374, DOI: 10.1097/00002826-199106000-00005.Peer-Reviewed Original ResearchConceptsSinemet CRParkinson's diseaseResponse fluctuationsDisease patientsL-deprenylMean interdose intervalTherapeutic response fluctuationsAdvanced Parkinson's diseaseMotor response fluctuationsParkinson's disease patientsLevodopa intakeMotor fluctuationsInterdose intervalTreatment regimensPatientsSignificant reductionDeprenylDiseaseRegimensDyskinesiaImproved control"Early" initiation of levodopa treatment does not promote the development of motor response fluctuations, dyskinesias, or dementia in Parkinson's disease.
Cedarbaum JM, Gandy SE, McDowell FH. "Early" initiation of levodopa treatment does not promote the development of motor response fluctuations, dyskinesias, or dementia in Parkinson's disease. Neurology 1991, 41: 622-9. PMID: 2027475, DOI: 10.1212/wnl.41.5.622.Peer-Reviewed Original ResearchConceptsMotor response fluctuationsLevodopa therapyLevodopa treatmentDisease clinicResponse fluctuationsParkinson's disease clinicDevelopment of dyskinesiaHistory of patientsTiming of initiationPatient populationDisease onsetParkinson's diseaseDyskinesiaYounger ageDementiaPatientsTherapyAdverse consequencesTreatmentDiseaseGreater proportionInitiationDisease diagnosisClinicDiagnosis
1990
Results of long-term treatment with controlled-release levodopa/carbidopa (Sinemet CR)
Cedarbaum JM, Silvestri M, Clark M, Toy L, Harts A, Green-Parsons A, McDowell FH. Results of long-term treatment with controlled-release levodopa/carbidopa (Sinemet CR). Journal Of Neural Transmission: Parkinson's Disease A And Dementia Section 1990, 2: 205-213. PMID: 2257060, DOI: 10.1007/bf02257651.Peer-Reviewed Original ResearchConceptsStandard SinemetMotor response fluctuationsResponse fluctuationsSinemet CRDisease patientsControlled-release levodopa/carbidopaLevodopa/carbidopaLong-term treatmentParkinson's disease patientsLong-term managementAntiparkinson effectEligible patientsMost patientsMedication dosesInterdose intervalClinical trialsParkinson's diseaseUseful adjunctPatientsSinemetDiseaseYearsCarbidopaAdjunctDoseSustained enteral administration of levodopa increases and interrupted infusion decreases levodopa dose requirements.
Cedarbaum J, Silvestri M, Kutt H. Sustained enteral administration of levodopa increases and interrupted infusion decreases levodopa dose requirements. Neurology 1990, 40: 995-7. PMID: 2345621, DOI: 10.1212/wnl.40.6.995.Peer-Reviewed Original ResearchConceptsInterrupted infusionTherapeutic response fluctuationsStriatal dopamine receptorsContinuous enteral infusionLevodopa dose requirementEnteral administrationEnteral infusionContinuous infusionDopamine receptorsInfusion rateParkinson's diseaseDose requirementsInfusionResponse fluctuationsMotor performanceLevodopaDiseasePatientsAdministrationReceptorsL-Deprenyl, Levodopa Pharmacokinetics, and Response Fluctuations in Parkinson's Disease.
Cedarbaum JM, Silvestri M, Clark M, Harts A, Kutt H. L-Deprenyl, Levodopa Pharmacokinetics, and Response Fluctuations in Parkinson's Disease. Clinical Neuropharmacology 1990, 13: 29. PMID: 2106391, DOI: 10.1097/00002826-199002000-00003.Peer-Reviewed Original ResearchConceptsParkinson's diseaseResponse fluctuationsL-deprenylTherapeutic response fluctuationsTotal levodopa doseOpen-label trialPlasma levodopa concentrationsPlasma levodopa levelsEffect of deprenylWeeks of treatmentDaily levodopaLevodopa doseLevodopa pharmacokineticsPeripheral pharmacokineticsAction of MAOLevodopa treatmentMost patientsDOPAC levelsLevodopa levelsDopaminergic activityLevodopa concentrationsMild endDose failureTherapeutic actionPatientsPharmacokinetic and Pharmacodynamic Considerations in Management of Motor Response Fluctuations in Parkinson's Disease
Cedarbaum J. Pharmacokinetic and Pharmacodynamic Considerations in Management of Motor Response Fluctuations in Parkinson's Disease. Neurologic Clinics 1990, 8: 31-49. PMID: 2181267, DOI: 10.1016/s0733-8619(18)30372-4.Peer-Reviewed Original ResearchConceptsMotor response fluctuationsResponse fluctuationsLevodopa-related fluctuationsSynthetic dopamine agonistsPlasma levodopa levelsMajority of patientsPharmacokinetics of levodopaSuch treatment approachesBrain dopaminergic activityLong-term treatmentBrain dopamine levelsRapid systemic clearanceAnti-Parkinson agentsLevodopa levelsDopamine agonistsPharmacodynamic consequencesPharmacodynamic considerationsSystemic clearanceAdvanced PDDopamine levelsDopaminergic activityTherapeutic approachesParkinson's diseaseTreatment approachesGalenic formulationSustained‐release (+)‐PHNO [MK‐458 (HPMC)] in the treatment of Parkinson's disease: Evidence for tolerance to a selective D2‐receptor agonist administered as a long‐acting formulation
Cedarbaum J, Clark M, Toy L, Green‐Parsons A. Sustained‐release (+)‐PHNO [MK‐458 (HPMC)] in the treatment of Parkinson's disease: Evidence for tolerance to a selective D2‐receptor agonist administered as a long‐acting formulation. Movement Disorders 1990, 5: 298-303. PMID: 1979657, DOI: 10.1002/mds.870050407.Peer-Reviewed Original ResearchConceptsMK-458Disease patientsSelective D2 receptor agonistPostsynaptic dopamine receptorsMotor response fluctuationsD2 receptor agonistParkinson's disease patientsSustained-release formAdjunctive therapyD2 agonistDopamine receptorsSinemetParkinson's diseaseAgonistsResponse fluctuationsProgressive lossPatientsWeeksDiseaseDosageReduced sensitivityDaysTherapyReceptors
1988
Controlled-Release Levodopa/Carbidopa III: Sinemet CR5 Treatment of Response Fluctuations in Parkinson's Disease.
Cedarbaum JM, Hoey M, Kutt H, McDowell FH. Controlled-Release Levodopa/Carbidopa III: Sinemet CR5 Treatment of Response Fluctuations in Parkinson's Disease. Clinical Neuropharmacology 1988, 11: 168. PMID: 3378225, DOI: 10.1097/00002826-198804000-00008.Peer-Reviewed Original ResearchConceptsSinemet CR4Parkinson's diseasePeak plasma levodopa concentrationResponse fluctuationsOpen-label studyAdvanced Parkinson's diseasePlasma levodopa concentrationsStandard SinemetInterdose intervalDaily dosesTherapeutic responseLevodopa concentrationsSame patientLabel studyDiseaseRelative bioavailabilityPatientsGreater delayTreatmentSinemetLevodopaDoses
1987
Controlled-release levodopa/carbidopa. II. Sinemet CR4 treatment of response fluctuations in Parkinson's disease.
Cedarbaum J, Breck L, Kutt H, McDowell F. Controlled-release levodopa/carbidopa. II. Sinemet CR4 treatment of response fluctuations in Parkinson's disease. Neurology 1987, 37: 1607-12. PMID: 3658164, DOI: 10.1212/wnl.37.10.1607-a.Peer-Reviewed Original ResearchConceptsSinemet CR4Interdose intervalParkinson's diseaseResponse fluctuationsTherapeutic response fluctuationsOpen-label trialPlasma levodopa levelsSlow-release preparationAntiparkinsonian effectsStandard levodopaLevodopa dosesLevodopa preparationsLevodopa levelsDaily dosesRelease preparationDiseaseLevodopaDosesProlongationTreatmentOverall benefitSinemetPatientsSlight reductionClinical Pharmacokinetics of Anti-Parkinsonian Drugs
Cedarbaum J. Clinical Pharmacokinetics of Anti-Parkinsonian Drugs. Clinical Pharmacokinetics 1987, 13: 141-178. PMID: 3311529, DOI: 10.2165/00003088-198713030-00002.Peer-Reviewed Original ResearchConceptsAnti-parkinsonian agentsAnti-parkinsonian drugsClinical PharmacokineticsParkinson's diseaseDirect acting dopamine receptor agonistsLarge neutral amino acidsResponse fluctuationsAnti-parkinsonian actionLittle pharmacokinetic dataPharmacodynamics of levodopaTherapeutic response fluctuationsPlasma levodopa concentrationsDopamine receptor agonistsPotential drug toxicityClass of drugsMechanism of actionParkinsonian populationRenal functionPharmacokinetic considerationsUnchanged drugBrain uptakeReceptor agonistRenal excretionShort eliminationLevodopa concentrationsControlled-release levodopa/carbidopa. I. Sinemet CR3 treatment of response fluctuations in Parkinson's disease.
Cedarbaum J, Breck L, Kutt H, McDowell F. Controlled-release levodopa/carbidopa. I. Sinemet CR3 treatment of response fluctuations in Parkinson's disease. Neurology 1987, 37: 233-41. PMID: 3808304, DOI: 10.1212/wnl.37.2.233.Peer-Reviewed Original ResearchConceptsPlasma levodopa levelsLevodopa levelsResponse fluctuationsParkinson's diseaseControlled-release carbidopa/levodopaCarbidopa/levodopaOpen-label trialBioavailability of levodopaStandard SinemetDisability scoresLevodopa preparationsInterdose intervalDaily dosesParkinson's patientsControlled-release formulationClinical performanceDiseaseLevodopaDay consistencyOverall benefitSinemetPatientsDosesTrialsWeeks