Evidence map›Paper›PMID 29067298›Full record

ArticleAlzheimer's & dementia (New York, N. Y.)2016

A randomized controlled study to evaluate the effect of bexarotene on amyloid-β and apolipoprotein E metabolism in healthy subjects.

Kaushik Ghosal, Michael Haag, Philip B Verghese, Tim West, Tim Veenstra, Joel B Braunstein, Randall J Bateman, David M Holtzman, Gary E Landreth

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (New York, N. Y.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02061878 (A Randomized Controlled Study to Evaluate the Effect of Bexarotene - an RXR Agonist - on Beta-Amyloid and Apolipoprotein E Metabolism in Healthy Subjects), which is not on this map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
3.5field-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.

NCT02061878 phase1completednot on this map

A Randomized Controlled Study to Evaluate the Effect of Bexarotene - an RXR Agonist - on Beta-Amyloid and Apolipoprotein E Metabolism in Healthy Subjects

TypeinterventionalSponsorReXceptor, Inc.Ran2014 to 2014Enrolled12ConditionsAlzheimer's DiseaseArmsBexarotene, Placebo
3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Review
  6. Article
  7. APOE-Targeted Therapeutics for Alzheimer's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  8. Review
  9. Review
  10. Observational
  11. Multifaceted roles of APOE in Alzheimer disease.Nature reviews. Neurology · 2024
    Review
  12. Review
  13. A Biomimetic Multiparametric Assay to Characterise Anti-Amyloid Drugs.International journal of molecular sciences · 2023
    Article
  14. Apolipoprotein E in lipid metabolism and neurodegenerative disease.Trends in endocrinology and metabolism: TEM · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  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

9 authors at 4 institutions in 1 country.

Kaushik GhosalReXceptor LLC, Cleveland, OH, USA.
Michael HaagReXceptor LLC, Cleveland, OH, USA.
Philip B VergheseC2N Diagnostics LLC, St. Louis, MO, USA.
Tim WestC2N Diagnostics LLC, St. Louis, MO, USA.
Tim VeenstraC2N Diagnostics LLC, St. Louis, MO, USA.
Joel B BraunsteinC2N Diagnostics LLC, St. Louis, MO, USA.
Randall J BatemanDepartment of Neurology, Washington University School of Medicine, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, St. Louis, MO, USA.
David M HoltzmanDepartment of Neurology, Washington University School of Medicine, Hope Center for Neurological Disorders, Knight Alzheimer's Disease Research Center, St. Louis, MO, USA.
Gary E LandrethDepartment of Neurosciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.
C2N Diagnostics (United States) · USHope Center for Neurological Disorders · USOdorcept (United States) · USCase Western Reserve University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe conducted a phase Ib proof of mechanism trial to determine whether bexarotene (Targretin) increases central nervous system (CNS) apolipoprotein E (apoE) levels and alters Aβ metabolism in normal healthy individuals with the

methodsWe used stable isotope labeling kinetics (SILK-ApoE and SILK-Aβ) to measure the effect of bexarotene on the turnover rate of apoE and Aβ peptides and stable isotope spike absolute quantitation (SISAQ) to quantitate their concentrations in the cerebrospinal fluid (CSF). Normal subjects were treated for 3 days with bexarotene (n = 3 women, 3 men, average 32 years old) or placebo (n = 6 women, average 30.2 years old) before administration of C

resultsOral administration of bexarotene resulted in plasma levels of 1 to 2 μM; however, only low nM levels were found in CSF. Bexarotene increased CSF apoE by 25% but had no effect on metabolism of Aβ peptides. DISCUSSION: Bexarotene has poor CNS penetration in normal human subjects. Drug treatment resulted in a modest increase in CSF apoE levels. The absence of an effect on Aβ metabolism is likely reflective of the low CNS levels of bexarotene achieved. This study documents the utility of SILK-ApoE technology in measuring apoE kinetics in humans.

trial registrationThis trial is registered at clinicaltrials.gov (NCT02061878).

Indexed as

Alzheimer's diseaseApolipoprotein EBexaroteneRetinoid X receptorβ amyloid

Identifiers

PMID29067298
PMCPMC5644280
OpenAlexW2470345034

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.