Evidence map›Paper›PMID 28550255›Full record

Trial reportJournal of Alzheimer's disease : JAD2017

Sembragiline in Moderate Alzheimer's Disease: Results of a Randomized, Double-Blind, Placebo-Controlled Phase II Trial (MAyflOwer RoAD).

Stephane Nave, Rachelle S Doody, Mercè Boada, Timo Grimmer, Juha-Matti Savola, Paul Delmar, Meike Pauly-Evers, Tania Nikolcheva, Christian Czech, Edilio Borroni and 11 more

Registry-linked trialOpen access · bronzeAbstract readClinical Trial, Phase IIRandomized Controlled Trial
In one paragraph

Trial report in Journal of Alzheimer's disease : JAD, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01677754 (A Phase II, Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study to Investigate the Efficacy and Safety of RO4602522 Added to Background Alzheimer's Disease Therapy in Patients With Moderate Severity Alzheimer's Disease), which is not on this map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT01677754 phase2completednot on this map

A Phase II, Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study to Investigate the Efficacy and Safety of RO4602522 Added to Background Alzheimer's Disease Therapy in Patients With Moderate Severity Alzheimer's Disease

TypeinterventionalSponsorHoffmann-La RocheRan2012 to 2015Enrolled542ConditionsAlzheimer's DiseaseArmsRO4602522, Placebo, Donepezil, Memantine, Rivastigmine
3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

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  13. Discovery ofJournal of enzyme inhibition and medicinal chemistry · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors at 7 institutions in 5 countries.

Stephane NaveRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Rachelle S DoodyDepartment of Neurology, Alzheimer's Disease and Memory Disorders Center, Baylor College of Medicine, Houston, TX, USA.
Mercè BoadaMemory Clinic ofFundació ACE, Institut Catalá de Neurociències Aplicades, Barcelona, Spain.
Timo GrimmerDepartment of Psychiatry and Psychotherapy, Klinikum rechts der Isar, Technische Universitaet Muenchen, Munich, Germany.
Juha-Matti SavolaRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Paul DelmarRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Meike Pauly-EversRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Tania NikolchevaRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Christian CzechRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Edilio BorroniRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Benedicte RicciRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Juergen DukartRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Marie ManninoRocheSafety Risk Management, Licensing & Early Development, RocheInnovation Center, NY, USA.
Tracie CareyRoche Product Development, Roche Innovation Center, NY, USA.
Emma MoranRoche Products Limited, Roche Innovation Center Welwyn, Welwyn Garden City, UK.
Inma GilaberteRoche Products Limited, Roche Innovation Center Welwyn, Welwyn Garden City, UK.
Nicoletta Milani MuelhardtRoche Product Development Neuroscience, Roche Innovation Center Basel, F.Hoffmann-La Roche Ltd, Switzerland.
Irene GerlachRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Luca SantarelliRoche Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Switzerland.
Susanne OstrowitzkiGenentech Inc., Product Development Neuroscience, South San Francisco, CA, USA.
Paulo FontouraRoche Product Development Neuroscience, Roche Innovation Center Basel, F.Hoffmann-La Roche Ltd, Switzerland.
Roche (Switzerland) · CHRoche (United Kingdom) · GBBaylor College of Medicine · USFundació ACE · ESHead-Royce School · USLa Roche College · USTUM Klinikum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSembragiline is a potent, selective, long-acting, and reversible MAO-B inhibitor developed as a potential treatment for Alzheimer's disease (AD).

objectiveTo evaluate the safety, tolerability, and efficacy of sembragiline in patients with moderate AD.

methodsIn this Phase II study (NCT01677754), 542 patients with moderate dementia (MMSE 13-20) on background acetylcholinesterase inhibitors with/without memantine were randomized (1:1:1) to sembragiline 1 mg, 5 mg, or placebo once daily orally for 52 weeks.

resultsNo differences between treated groups and placebo in adverse events or in study completion. The primary endpoint, change from baseline in ADAS-Cog11, was not met. At Week 52, the difference between sembragiline and placebo in ADAS-Cog11 change from baseline was - 0.15 (p = 0.865) and 0.90 (p = 0.312) for 1 and 5 mg groups, respectively. Relative to placebo at Week 52 (but not at prior assessment times), the 1 mg and 5 mg sembragiline groups showed differences in ADCS-ADL of 2.64 (p = 0.051) and 1.89 (p = 0.160), respectively. A treatment effect in neuropsychiatric symptoms (as assessed by the difference between sembragiline and placebo on BEHAVE-AD-FW) was also seen at Week 52 only: - 2.80 (p = 0.014; 1 mg) and - 2.64 (p = 0.019; 5 mg), respectively. A post hoc subgroup analysis revealed greater treatment effects on behavior and functioning in patients with more severe baseline behavioral symptoms (above the median).

conclusionsThis study showed that sembragiline was well-tolerated in patients with moderate AD. The study missed its primary and secondary endpoints. Post hoc analyses suggested potential effect on neuropsychiatric symptoms and functioning in more behaviorally impaired study population at baseline.

Indexed as

AcetamidesAgedAged, 80 and overAlzheimer DiseaseAntipsychotic AgentsDose-Response Relationship, DrugDouble-Blind MethodFemaleFollow-Up StudiesHippocampusHumansMagnetic Resonance ImagingMaleMental Status and Dementia TestsMiddle AgedPyrrolidinonesAcetamidesAntipsychotic AgentsPyrrolidinonessembragilineAlzheimer’s diseasedementiamonoamine oxidase BPhase II clinical trial

Identifiers

PMID28550255
PMCPMC5523913
OpenAlexW2618395897

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.