Evidence map›Paper›PMID 24092053›Full record

ArticlePharmaceutical research2014

Population PKPD modeling of BACE1 inhibitor-induced reduction in Aβ levels in vivo and correlation to in vitro potency in primary cortical neurons from mouse and guinea pig.

Juliette Janson, Susanna Eketjäll, Karin Tunblad, Fredrik Jeppsson, Stefan Von Berg, Camilla Niva, Ann-Cathrin Radesäter, Johanna Fälting, Sandra A G Visser

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Does In Vitro Potency Predict Clinically Efficacious Concentrations?Clinical pharmacology and therapeutics · 2020
    Article
  6. Article
  7. Article
  8. 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.

Juliette JansonModeling & Simulation, DMPK, Innovative Medicines CNSP AstraZeneca, SE-15185, Södertälje, Sweden, juliettejanson@yahoo.com.
Susanna Eketjäll
Karin Tunblad
Fredrik Jeppsson
Stefan Von Berg
Camilla Niva
Ann-Cathrin Radesäter
Johanna Fälting
Sandra A G Visser

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aims were to quantify the in vivo time-course between the oral dose, the plasma and brain exposure and the inhibitory effect on Amyloid β (Aβ) in brain and cerebrospinal fluid, and to establish the correlation between in vitro and in vivo potency of novel β-secretase (BACE1) inhibitors.

methodsBACE1-mediated inhibition of Aβ was quantified in in vivo dose- and/or time-response studies and in vitro in SH-SY5Y cells, N2A cells, and primary cortical neurons (PCN). An indirect response model with inhibition on Aβ production rate was used to estimate unbound in vivo IC 50 in a population pharmacokinetic-pharmacodynamic modeling approach.

resultsEstimated in vivo inhibitory potencies varied between 1 and 1,000 nM. The turnover half-life of Aβ40 in brain was predicted to be 0.5 h in mouse and 1 h in guinea pig. An excellent correlation between PCN and in vivo potency was observed. Moreover, a strong correlation in potency was found between human SH-SY5Y cells and mouse PCN, being 4.5-fold larger in SH-SY5Y cells.

conclusionThe strong in vivo-in vitro correlation increased the confidence in using human cell lines for screening and optimization of BACE1 inhibitors. This can optimize the design and reduce the number of preclinical in vivo effect studies.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAnimalsAspartic Acid EndopeptidasesBrainCell LineCells, CulturedEnzyme InhibitorsFemaleGuinea PigsHumansMaleMiceMice, Inbred C57BLModels, BiologicalAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBace1 protein, mouseEnzyme Inhibitors

Identifiers

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Registered trials

None linked

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.