1991
Effect of MK-458 (HPMC) in Parkinson's Disease Previously Untreated With Dopaminergic Drugs. A Double-Blind, Placebo-Controlled Multicenter Study.
Koller WC, Block GA, Ahlskog JE, Ahrens S, Cedarbaum JM, Cyhan G, Goetz CG, LeWitt PA, Liss C, McLean L, Moses H, Muenter M, Nausieda P, Sanchez-Ramos J, Reich S, Singer C, Stellar S, Weiner W. Effect of MK-458 (HPMC) in Parkinson's Disease Previously Untreated With Dopaminergic Drugs. A Double-Blind, Placebo-Controlled Multicenter Study. Clinical Neuropharmacology 1991, 14: 322. PMID: 1913699, DOI: 10.1097/00002826-199108000-00004.Peer-Reviewed Original ResearchConceptsMK-458Early Parkinson's diseaseParkinson's diseaseDopaminergic drugsDisability Rating ScoreDopamine receptor agonismPlacebo-controlled evaluationPatient global assessmentClinical rating scalesParkinsonian symptomsAntiparkinsonian efficacyMulticenter studyAdverse reactionsIdeal treatmentReceptor agonistReceptor agonismSustained release formulationPlaceboGlobal assessmentDiseaseRating ScaleSignificant decreaseDrugsPatientsRating scores
1990
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
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