Evidence map›Paper›PMID 27770597›Full record

ArticleCPT: pharmacometrics & systems pharmacology2016

Assessing the Impact of Tissue Target Concentration Data on Uncertainty in In Vivo Target Coverage Predictions.

A Tiwari, H Luo, X Chen, P Singh, I Bhattacharya, P Jasper, J E Tolsma, H M Jones, A Zutshi, A K Abraham

Abstract read
In one paragraph

Article in CPT: pharmacometrics & systems pharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–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

7 citing papers in PubMed.

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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

10 authors.

A TiwariDepartment of Pharmacokinetics, Dynamics, and Metabolism, Pfizer Worldwide R&D, Cambridge, Massachusetts, USA. abhinav.tiwari@pfizer.com.
H LuoRES Group, Needham, Massachusetts, USA.
X ChenDepartment of Pharmacokinetics, Dynamics, and Metabolism, Pfizer Worldwide R&D, Cambridge, Massachusetts, USA.
P SinghDepartment of Pharmacokinetics, Dynamics, and Metabolism, Pfizer Worldwide R&D, Cambridge, Massachusetts, USA.
I BhattacharyaQuantitative Clinical Sciences, PharmaTherapeutics R&D, Pfizer Inc., Cambridge, Massachusetts, USA.
P JasperRES Group, Needham, Massachusetts, USA.
J E TolsmaRES Group, Needham, Massachusetts, USA.
H M JonesDepartment of Pharmacokinetics, Dynamics, and Metabolism, Pfizer Worldwide R&D, Cambridge, Massachusetts, USA.
A Zutshi
A K Abraham

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Understanding pharmacological target coverage is fundamental in drug discovery and development as it helps establish a sequence of research activities, from laboratory objectives to clinical doses. To this end, we evaluated the impact of tissue target concentration data on the level of confidence in tissue coverage predictions using a site of action (SoA) model for antibodies. By fitting the model to increasing amounts of synthetic tissue data and comparing the uncertainty in SoA coverage predictions, we confirmed that, in general, uncertainty decreases with longitudinal tissue data. Furthermore, a global sensitivity analysis showed that coverage is sensitive to experimentally identifiable parameters, such as baseline target concentration in plasma and target turnover half-life and fixing them reduces uncertainty in coverage predictions. Overall, our computational analysis indicates that measurement of baseline tissue target concentration reduces the uncertainty in coverage predictions and identifies target-related parameters that greatly impact the confidence in coverage predictions.

Indexed as

AntibodiesComputational BiologyComputer SimulationDose-Response Relationship, DrugDrug DiscoveryHalf-LifeHumansLikelihood FunctionsModels, TheoreticalTissue DistributionUncertaintyAntibodies

Identifiers

PMID27770597
PMCPMC5080652

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.