Evidence map›Paper›PMID 36130946›Full record

Trial reportNature communications2022

Preclinical and randomized clinical evaluation of the p38α kinase inhibitor neflamapimod for basal forebrain cholinergic degeneration.

Ying Jiang, John J Alam, Stephen N Gomperts, Paul Maruff, Afina W Lemstra, Ursula A Germann, Philip H Stavrides, Sandipkumar Darji, Sandeep Malampati, James Peddy and 15 more

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

Trial report in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04001517 (A Double-Blind, Placebo-Controlled 16-Week Study of the Cognitive Effects of Oral p38 Alpha Kinase Inhibitor Neflamapimod in Dementia With Lewy Bodies), which is not on this map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
5.7field-weighted citation impact, top 3% 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.

NCT04001517 phase2completednot on this map

A Double-Blind, Placebo-Controlled 16-Week Study of the Cognitive Effects of Oral p38 Alpha Kinase Inhibitor Neflamapimod in Dementia With Lewy Bodies (DLB)

TypeinterventionalSponsorEIP Pharma IncRan2019 to 2020Enrolled91ConditionsDementia With Lewy Bodies (DLB)ArmsNeflamapimod
3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 55 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Reduction in hippocampal cholinergic neurostimulating peptide enhances memory impairment in AppAlzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Advances in the treatment of Alzheimer's disease.Frontiers in pharmacology · 2026
    Review
  18. Neuroprotection in Parkinson Disease.Neurology and therapy · 2025
    Review
  19. Article
  20. Article
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

25 authors at 4 institutions in 3 countries.

Ying Jiang *Center for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
John J Alam *EIP Pharma Inc, 20 Park Plaza, Suite 424, Boston, MA, 02116, USA. jalam@eippharma.com.ORCID 0000-0002-1285-1115
Stephen N GompertsMassachusetts Alzheimer's Disease Research Center, 114 16th Street, Massachusetts General Hospital, Charlestown, MA, 02129, USA.
Paul MaruffCogstate Ltd, Runway East Borough Market, 20 St. Thomas St, London, SE1 9RS, UK.ORCID 0000-0002-6947-9537
Afina W LemstraAlzheimer Center Amsterdam, Amsterdam Neuroscience - Neurodegeneration, Amsterdam UMC at VUmc, De Boelelaan 1118, 1081 HZ, Amsterdam, the Netherlands.
Ursula A GermannEIP Pharma Inc, 20 Park Plaza, Suite 424, Boston, MA, 02116, USA.
Philip H StavridesCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Sandipkumar DarjiCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Sandeep MalampatiCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
James PeddyCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Cynthia BleiwasCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Monika PawlikCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Anna PensalfiniCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Dun-Sheng YangCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Shivakumar SubbannaCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Balapal S BasavarajappaCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
John F SmileyCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA.
Amanda GardnerEIP Pharma Inc, 20 Park Plaza, Suite 424, Boston, MA, 02116, USA.
Kelly BlackburnEIP Pharma Inc, 20 Park Plaza, Suite 424, Boston, MA, 02116, USA.
Hui-May ChuAnoixis Corporation, 214 N. Main St. #104, Natick, MA, 01760, USA.
Niels D PrinsBrain Research Center, Cronenburg 2, 1081 GN, Amsterdam, the Netherlands.
Charlotte E TeunissenAlzheimer Center Amsterdam, Amsterdam Neuroscience - Neurodegeneration, Amsterdam UMC at VUmc, De Boelelaan 1118, 1081 HZ, Amsterdam, the Netherlands.
John E HarrisonAlzheimer Center Amsterdam, Amsterdam Neuroscience - Neurodegeneration, Amsterdam UMC at VUmc, De Boelelaan 1118, 1081 HZ, Amsterdam, the Netherlands.ORCID 0000-0002-0225-4923
Philip ScheltensAlzheimer Center Amsterdam, Amsterdam Neuroscience - Neurodegeneration, Amsterdam UMC at VUmc, De Boelelaan 1118, 1081 HZ, Amsterdam, the Netherlands.
Ralph A NixonCenter for Dementia Research, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY, 10962, USA. ralph.nixon@nki.rfmh.org.
Nathan Kline Institute for Psychiatric Research · USAmsterdam Neuroscience · NLHispanics in Philanthropy · USMassachusetts General Hospital · US

Funding

Uncovering Alzheimer's disease risk mechanisms through neuron-specific analysis of autophagy and endosomal-lysosomal functionP01AG017617 · NIA · NATHAN S. KLINE INSTITUTE FOR PSYCH RES · PI NIXON, RALPH A. · 2000 to 2021
$40.0M
Research Education ComponentP30AG062421 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI Christine S Ritchie · 2019 to 2026
$36.5M
Endosome Dysfunction in Alzheimer's DiseaseR01AG062376 · NIA · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI NIXON, RALPH A. · 2018 to 2022
$3.7M
Endocannabinoid Signaling in Postnatal Ethanol EffectsR01AA019443 · NIAAA · NATHAN S. KLINE INSTITUTE FOR PSYCH RES · PI BALAPAL, BASAVARAJ S · 2010 to 2019
$3.2M
NIAAA NIH HHS R01 AA019443NIA NIH HHS P01 AG017617NIA NIH HHS P30 AG062421NIA NIH HHS R01 AG062376
6 · The paper itself

Abstract

The endosome-associated GTPase Rab5 is a central player in the molecular mechanisms leading to degeneration of basal forebrain cholinergic neurons (BFCN), a long-standing target for drug development. As p38α is a Rab5 activator, we hypothesized that inhibition of this kinase holds potential as an approach to treat diseases associated with BFCN loss. Herein, we report that neflamapimod (oral small molecule p38α inhibitor) reduces Rab5 activity, reverses endosomal pathology, and restores the numbers and morphology of BFCNs in a mouse model that develops BFCN degeneration. We also report on the results of an exploratory (hypothesis-generating) phase 2a randomized double-blind 16-week placebo-controlled clinical trial (Clinical trial registration: NCT04001517/EudraCT #2019-001566-15) of neflamapimod in mild-to-moderate dementia with Lewy bodies (DLB), a disease in which BFCN degeneration is an important driver of disease expression. A total of 91 participants, all receiving background cholinesterase inhibitor therapy, were randomized 1:1 between neflamapimod 40 mg or matching placebo capsules (taken orally twice-daily if weight <80 kg or thrice-daily if weight >80 kg). Neflamapimod does not show an effect in the clinical study on the primary endpoint, a cognitive-test battery. On two secondary endpoints, a measure of functional mobility and a dementia rating-scale, improvements were seen that are consistent with an effect on BFCN function. Neflamapimod treatment is well-tolerated with no study drug associated treatment discontinuations. The combined preclinical and clinical observations inform on the validity of the Rab5-based pathogenic model of cholinergic degeneration and provide a foundation for confirmatory (hypothesis-testing) clinical evaluation of neflamapimod in DLB.

Indexed as

Alzheimer DiseaseBasal ForebrainAnimalsCholinergic NeuronsCholinesterase InhibitorsDouble-Blind MethodGTP PhosphohydrolasesHumansMiceMitogen-Activated Protein Kinase 14Protein Kinase InhibitorsCholinesterase InhibitorsGTP PhosphohydrolasesMitogen-Activated Protein Kinase 14Protein Kinase Inhibitors

Identifiers

PMID36130946
PMCPMC9492778
OpenAlexW4296689714

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.