2024
Phase 2A Proof-of-Concept Double-Blind, Randomized, Placebo-Controlled Trial of Nicotinamide in Early Alzheimer Disease
Grill J, Tam S, Thai G, Vides B, Pierce A, Green K, Gillen D, Teng E, Kremen S, Beigi M, Rissman R, Léger G, Balasubramanian A, Revta C, Morrison R, Jennings R, Pa J, Zhang J, Jin S, Messer K, Feldman H. Phase 2A Proof-of-Concept Double-Blind, Randomized, Placebo-Controlled Trial of Nicotinamide in Early Alzheimer Disease. Neurology 2024, 104: e210152. PMID: 39671543, PMCID: PMC11655133, DOI: 10.1212/wnl.0000000000210152.Peer-Reviewed Original ResearchConceptsTau phosphorylationP-tau<sub>181</sub>Histone deacetylasesCDR-SBAlzheimer's diseaseCSF p-tauPrimary outcomeP-tauDiagnosis of mild cognitive impairmentAlzheimer's Disease Assessment ScaleAlzheimer's Disease Cooperative Study-ActivitiesClass III histone deacetylasePrespecified secondary outcomesCellular oxidation-reduction reactionsDisease Assessment ScaleLevels of tauAD biomarkersHolm-Bonferroni procedureMild cognitive impairmentControl type I errorThreonine 231Histone deacetylase inhibitionAcademic clinical centersAssessment ScaleAdverse events
2023
A Phase 2a proof‐of‐concept double‐blind, randomized, placebo‐controlled trial of nicotinamide in early Alzheimer’s disease
Grill J, Tam S, Thai G, Pierce A, Green K, Gillen D, Teng E, Kremen S, Beigi M, Rissman R, Leger G, Zhang J, Jin S, Messer K, Feldman H. A Phase 2a proof‐of‐concept double‐blind, randomized, placebo‐controlled trial of nicotinamide in early Alzheimer’s disease. Alzheimer's & Dementia 2023, 19 DOI: 10.1002/alz.077979.Peer-Reviewed Original ResearchPhase 2a proofP-Tau 181Placebo armTotal tauCDR-SBEarly ADAmyloid beta 40Placebo-controlled trialCerebrospinal fluid levelsEarly Alzheimer's diseaseAlzheimer's disease biomarkersDisease biomarkersPhosphorylation of tauClass III histoneSecondary outcomesAdverse eventsClinical characteristicsPrimary outcomeADCS-ADLStudy armsTreatment initiationCSF biomarkersADAS-Cog13Biomarker outcomesMean changePrognostic value of plasma biomarkers in a clinical trial of mild‐to‐moderate Alzheimer’s Disease
Qiu Y, Messer K, Jacobs D, Salmon D, Kaplita S, Wellington C, Stukas S, Askew B, Brewer J, Brody M, Donahue L, Drake J, Grossman K, Hendrix S, Jicha G, Leger G, Porsteinsson A, Shadyab A, Taylor C, Thomas R, van Dyck C, Zhang J, Coric V, Qureshi I, Feldman H, Group A. Prognostic value of plasma biomarkers in a clinical trial of mild‐to‐moderate Alzheimer’s Disease. Alzheimer's & Dementia 2023, 19 DOI: 10.1002/alz.076047.Peer-Reviewed Original ResearchModerate Alzheimer's diseaseAlzheimer's Disease Cooperative StudyPlasma NfLPlasma biomarkersCDR-SBADAS-cog11Baseline NfLAlzheimer's diseaseMRI outcomesClinical trialsTrial designBaseline biomarker measurementsBaseline plasma biomarkersPlacebo-controlled RCTsClinical trial designOnly significant associationGlobal functionClinical declineClinical outcomesP-tauTotal tauTreatment armsPrognostic valueSignificant treatment effectBiomarker changesNumber of completed exercise sessions is associated with slower brain atrophy in MCI over 12 months in the EXERT trial
Digma L, Aslanyan V, Brewer J, Bevins E, Katula J, Chmelo E, Hodge H, LaCroix A, Shadyab A, Jacobs D, Salmon D, Feldman H, Pa J, Baker L. Number of completed exercise sessions is associated with slower brain atrophy in MCI over 12 months in the EXERT trial. Alzheimer's & Dementia 2023, 19 DOI: 10.1002/alz.079285.Peer-Reviewed Original ResearchSupervised exercise sessionsBrain atrophyExercise sessionsAlzheimer's Disease Cooperative StudyLess brain atrophySupervised exercise interventionLower dementia riskLate-life exerciseAmount of exerciseInferior lateral ventricleExercise armExercise interventionDementia riskBaseline ageCDR-SBAerobic trainingLateral ventricleHigh adherenceIntervention adherenceNumber of sessionsVentricular expansionExercise typePlasma Aβ42/40Amnestic MCICognitive declineEfficacy assessment of an active tau immunotherapy in Alzheimer’s disease patients with amyloid and tau pathology: a post hoc analysis of the “ADAMANT” randomised, placebo-controlled, double-blind, multi-centre, phase 2 clinical trial
Cullen N, Novak P, Tosun D, Kovacech B, Hanes J, Kontsekova E, Fresser M, Ropele S, Feldman H, Schmidt R, Winblad B, Zilka N. Efficacy assessment of an active tau immunotherapy in Alzheimer’s disease patients with amyloid and tau pathology: a post hoc analysis of the “ADAMANT” randomised, placebo-controlled, double-blind, multi-centre, phase 2 clinical trial. EBioMedicine 2023, 99: 104923. PMID: 38101301, PMCID: PMC10733085, DOI: 10.1016/j.ebiom.2023.104923.Peer-Reviewed Original ResearchConceptsTau pathologyPathological tau proteinsAlzheimer's diseaseDouble-blindPlacebo-controlledCDR-SBTau immunotherapyTau proteinPhase 2 clinical trialAnti-tauPost hoc subgroup analysisAD-related declineDisease patientsSlowing of declineAlzheimer's disease patientsAntibody-dependent mannerAADvac1Post hoc analysisActive immunotherapyTauFull analysisParallel-groupSubgroup analysisBaseline MRIEfficacy assessment