Evidence map›Paper›PMID 27030397›Full record

ArticleMolecular imaging2016

Comparison of New Tau PET-Tracer Candidates With [18F]T808 and [18F]T807.

Lieven Declercq, Sofie Celen, Joan Lecina, Muneer Ahamed, Thomas Tousseyn, Diederik Moechars, Jesus Alcazar, Manuela Ariza, Katleen Fierens, Astrid Bottelbergs and 6 more

Abstract readComparative Study
In one paragraph

Article in Molecular imaging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Radiosynthesis,ACS chemical neuroscience · 2021
    Article
  7. Binding of [European journal of nuclear medicine and molecular imaging · 2020
    Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Neuroimaging-pathological correlations of [Acta neuropathologica communications · 2018
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Tau PET imaging: present and future directions.Molecular neurodegeneration · 2017
    Review
  19. Biomarkers for the Early Detection and Progression of Alzheimer's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
  20. Review
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

16 authors.

Lieven DeclercqLaboratory for Radiopharmacy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
Sofie CelenLaboratory for Radiopharmacy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
Joan LecinaLaboratory for Radiopharmacy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
Muneer AhamedLaboratory for Radiopharmacy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
Thomas TousseynTranslational Cell and Tissue Research, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
Diederik MoecharsJanssen Research and Development, Neuroscience Discovery Biology, a division of Janssen Pharmaceutica NV, Beerse, Belgium.
Jesus AlcazarJanssen Research and Development, Discovery Sciences, a division of Janssen-Cilag NV, Toledo, Belgium.
Manuela ArizaJanssen Research and Development, Discovery Sciences, a division of Janssen-Cilag NV, Toledo, Belgium.
Katleen FierensJanssen Research and Development, Discovery Sciences, a division of Janssen-Cilag NV, Toledo, Belgium.
Astrid BottelbergsJanssen Research and Development, Neuroscience Discovery Biology, a division of Janssen Pharmaceutica NV, Beerse, Belgium.
Jonas MariënJanssen Research and Development, Neuroscience Discovery Biology, a division of Janssen Pharmaceutica NV, Beerse, Belgium.
Rik VandenbergheLaboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Leuven, Belgium.
Ignacio Jose AndresJanssen Research and Development, Discovery Sciences, a division of Janssen-Cilag NV, Toledo, Belgium.
Koen Van LaereNuclear Medicine & Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
Alfons VerbruggenLaboratory for Radiopharmacy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
Guy BormansLaboratory for Radiopharmacy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium guy.bormans@pharm.kuleuven.be.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Early clinical results of two tau tracers, [(18)F]T808 and [(18)F]T807, have recently been reported. In the present study, the biodistribution, radiometabolite quantification, and competition-binding studies were performed in order to acquire comparative preclinical data as well as to establish the value of T808 and T807 as benchmark compounds for assessment of binding affinities of eight new/other tau tracers. Biodistribution studies in mice showed high brain uptake and fast washout.In vivoradiometabolite analysis using high-performance liquid chromatography showed the presence of polar radiometabolites in plasma and brain. No specific binding of [(18)F]T808 was found in transgenic mice expressing mutant human P301L tau. In semiquantitative autoradiography studies on human Alzheimer disease slices, we observed more than 50% tau selective blocking of [(18)F]T808 in the presence of 1 µmol/L of the novel ligands. This study provides a straightforward comparison of the binding affinity and selectivity for tau of the reported radiolabeled tracers BF-158, BF-170, THK5105, lansoprazole, astemizole, and novel tau positron emission tomography ligands against T807 and T808. Therefore, these data are helpful to identify structural requirements for selective interaction with tau and to compare the performance of new highly selective and specific radiolabeled tau tracers.

Indexed as

Alzheimer DiseaseAnimalsBenzimidazolesBrain ChemistryFluorine RadioisotopesHumansMiceMice, TransgenicMutationPlasmaPositron-Emission TomographyPyrimidinesRadiopharmaceuticalstau ProteinsTissue DistributionBenzimidazolesFluorine RadioisotopesMAPT protein, humanPyrimidinesRadiopharmaceuticalsT808 compoundtau ProteinsAlzheimerbiomarkermolecular imaging of neurodegenerative diseasesPET imaging

Identifiers

PMID27030397
PMCPMC5470083

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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.