Evidence map›Paper›PMID 26082009›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2015

Blocking of fatty acid amide hydrolase activity with PF-04457845 in human brain: a positron emission tomography study with the novel radioligand [(11)C]CURB.

Isabelle Boileau, Pablo M Rusjan, Belinda Williams, Esmaeil Mansouri, Romina Mizrahi, Vincenzo De Luca, Douglas S Johnson, Alan A Wilson, Sylvain Houle, Stephen J Kish and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.1field-weighted citation impact, top 10% 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.

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

22 citing papers in PubMed, 39 citations in OpenAlex.

  1. PET imaging of FAAH in chronic Cannabis users: longitudinal assessment during short-term abstinence.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  2. Review
  3. Quantification of [Frontiers in neuroscience · 2026
    Article
  4. Article
  5. Fatty acid amide hydrolase in major depressive episodes: A [Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  6. Article
  7. Article
  8. Endocannabinoid System Biomarkers in Alzheimer's Disease.Cannabis and cannabinoid research · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Lower brain fatty acid amide hydrolase in treatment-seeking patients with alcohol use disorder: a positron emission tomography study with [C-11]CURB.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Inhibition of fatty acid amide hydrolase by BIA 10-2474 in rat brain.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    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

11 authors at 3 institutions in 2 countries.

Isabelle BoileauAddiction Imaging Research Group, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Pablo M RusjanResearch Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Belinda WilliamsAddiction Imaging Research Group, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Esmaeil MansouriAddiction Imaging Research Group, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Romina MizrahiCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Vincenzo De LucaCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Douglas S JohnsonPfizer Worldwide Research and Development, Cambridge, Massachusetts, USA.
Alan A WilsonCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Sylvain HouleCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Stephen J KishHuman Brain Lab, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Junchao TongHuman Brain Lab, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
Centre for Addiction and Mental Health · CAUniversity of Toronto · CAPfizer (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Positron emission tomography with [(11)C]CURB was recently developed to quantify fatty acid amide hydrolase (FAAH), the enzyme responsible for hydrolyzing the endocannabinoid anandamide. This study investigated the test-retest reliability of [(11)C]CURB as well as its in vivo specificity and the validity of the kinetic model by using the highly specific FAAH inhibitor, PF-04457845. Five healthy volunteers completed test-retest [(11)C]CURB scans 1 to 2 months apart and six subjects completed baseline and blocking scans on the same day after PF-04457845 (p.o.) administration (1, 4, or 20 mg; n=2 each). The composite parameter λk3 (an index of FAAH activity, λ=K1/k2) was estimated using an irreversible two-tissue compartment model with plasma input function. There were no clinically observable responses to oral PF-04457845 or [(11)C]CURB injection. Oral administration of PF-04457845 reduced [(11)C]CURB binding to a homogeneous level at all three doses, with λk3 values decreased by ⩾91%. Excellent reproducibility and good reliability (test-retest variability=9%; intraclass correlation coefficient=0.79) were observed across all regions of interest investigated. Our findings suggest that λk3/[(11)C]CURB is a reliable, highly sensitive, and selective tool to measure FAAH activity in human brain in vivo. Moreover, PF-04457845 is a highly potent FAAH inhibitor (>95% inhibition at 1 mg) in living human brain.

Indexed as

Biphenyl CompoundsCarbamatesRadiopharmaceuticalsAdultAmidohydrolasesBinding, CompetitiveBrainDose-Response Relationship, DrugEnzyme InhibitorsFatty Acid Amide HydrolasesFemaleHealthy VolunteersHumansImage Processing, Computer-AssistedKineticsMaleAmidohydrolasesBiphenyl CompoundsCarbamatescyclohexyl carbonic acid 3'-carbamoyl-3-yl esterEnzyme InhibitorsFatty Acid Amide HydrolasesN-pyridazin-3-yl-4-(3-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzylidene)piperidine-1-carboxamidePyridazinesRadiopharmaceuticalsUrea

Identifiers

PMID26082009
PMCPMC4635238
OpenAlexW1564158892

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.