Evidence map›Paper›PMID 22895910›Full record

Trial reportMolecular imaging and biology2013

Whole body biodistribution and radiation dosimetry in humans of a new PET ligand, [(18)F]-FEPPA, to image translocator protein (18 kDa).

Romina Mizrahi, Pablo M Rusjan, Irina Vitcu, Alvina Ng, Alan A Wilson, Sylvain Houle, Peter M Bloomfield

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Molecular imaging and biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. First human whole-body biodistribution and dosimetry analysis of [European journal of nuclear medicine and molecular imaging · 2026
    Article
  2. Abbreviated dynamic total-body [Quantitative imaging in medicine and surgery · 2025
    Article
  3. Observational
  4. Total-body dynamic PET/CT imaging reveals kinetic distribution of [European journal of nuclear medicine and molecular imaging · 2024
    Article
  5. Article
  6. A first-in-man study of [Annals of nuclear medicine · 2024
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. [EJNMMI research · 2020
    Article
  12. Article
  13. Radiation dosimetry of [EJNMMI research · 2019
    Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Influence of TSPO genotype on 11C-PBR28 standardized uptake values.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2013
    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

7 authors.

Romina MizrahiVivian M. Rakoff PET Centre, Research Imaging Centre, Centre for Addiction and Mental Health CAMH, 250 College Street, Toronto, Ontario, Canada, M5T 1R8.
Pablo M Rusjan
Irina Vitcu
Alvina Ng
Alan A Wilson
Sylvain Houle
Peter M Bloomfield

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purpose[(18)F]-FEPPA is a translocator protein (18 kDa, TSPO) positron emission tomography (PET) radiotracer. Radiation dosimetry was estimated from the whole body biodistribution, taking into consideration TSPO rs6971 (Ala147Thr) polymorphism. PROCEDURES: [(18)F]-FEPPA whole body PET scans were acquired for six healthy subjects. Time-activity curves were generated from regions of interest of nine organs, from which normalized accumulated activities were calculated and thus internal dose, using OLINDA/EXM 1.1. Genotyping of rs6971, associated with high- and low-affinity [(18)F]-FEPPA binding (high-affinity binder (HAB) and low-affinity binder (LAB)), was performed.

resultsFive subjects exhibited the C/C (HAB) allele, and the other carried the minor allele T/T (LAB). The LAB whole body biodistribution showed highest radioactivity accumulation in bladder, whereas in HABs, the spleen received the highest dose. The effective dose of the single LAB (16.3 μSv/MBq) was 23 % less than the mean of the HABs (21.0 ± 2.9 μSv/MBq). When including all subjects, the effective dose was 20.2 ± 3.0 μSv/MBq.

conclusions[(18)F]-FEPPA radiation dose is consistent with other (18)F-labeled radioligands and the Ala147Thr genotype agreed with [(18)F]-FEPPA distribution.

Indexed as

AdultAnilidesFemaleHumansLigandsMaleOrgan SpecificityPositron-Emission TomographyPyridinesRadiometryReceptors, GABATissue DistributionWhole Body ImagingAnilidesLigandsN-(2-((N-(4-phenoxypyridin-3-yl)acetamido)methyl)phenoxy)ethyl fluoridePyridinesReceptors, GABATSPO protein, human

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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.