Evidence map›Paper›PMID 25662185›Full record

ArticleNaunyn-Schmiedeberg's archives of pharmacology2015

AMG2850, a potent and selective TRPM8 antagonist, is not effective in rat models of inflammatory mechanical hypersensitivity and neuropathic tactile allodynia.

Sonya G Lehto, Andy D Weyer, Maosheng Zhang, Beth D Youngblood, Judy Wang, Weiya Wang, Patrick C Kerstein, Carl Davis, Kenneth D Wild, Cheryl L Stucky and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Naunyn-Schmiedeberg's archives of pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Mechanosensitive receptors in migraine: a systematic review.The journal of headache and pain · 2024
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Recent Progress in TRPM8 Modulation: An Update.International journal of molecular sciences · 2019
    Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. TRPM8 and Migraine.Headache · 2016
    Review
  14. TRPM8: a potential target for cancer treatment.Journal of cancer research and clinical oncology · 2016
    Review
  15. Article
  16. Molecular Targets of Cannabidiol in Neurological Disorders.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2015
    Review
  17. Targeting TRP channels: beyond TRPV1.Naunyn-Schmiedeberg's archives of pharmacology · 2015
    Article
  18. 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

11 authors at 2 institutions in 1 country.

Sonya G LehtoDepartment of Neuroscience, Amgen Inc, One Amgen Center Dr, Thousand Oaks, CA, 91320-1799, USA, slehto@amgen.com.
Andy D Weyer
Maosheng Zhang
Beth D Youngblood
Judy Wang
Weiya Wang
Patrick C Kerstein
Carl Davis
Kenneth D Wild
Cheryl L Stucky
Narender R Gavva
Amgen (United States) · USMedical College of Wisconsin · US

Funding

Nociceptive Mechanisms Underlying Sickle Cell PainR01NS070711 · NINDS · MEDICAL COLLEGE OF WISCONSIN · PI Bonnie N Dittel, Cheryl Louise Stucky · 2009 to 2026
$8.7M
FUNCTIONAL ANALYSIS OF DISTINCT NOCICEPTOR POPULATIONSR01NS040538 · NINDS · MEDICAL COLLEGE OF WISCONSIN · PI STUCKY, CHERYL LOUISE · 2000 to 2019
$6.2M
NINDS NIH HHS R01 NS070711
6 · The paper itself

Abstract

TRPM8 has been implicated in pain and migraine based on dorsal root- and trigeminal ganglion-enriched expression, upregulation in preclinical models of pain, knockout mouse studies, and human genetics. Here, we evaluated the therapeutic potential in pain of AMG2850 ((R)-8-(4-(trifluoromethyl)phenyl)-N-((S)-1,1,1-trifluoropropan-2-yl)-5,6-dihydro-1,7-naphthyridine-7(8H)-carboxamide), a small molecule antagonist of TRPM8 by in vitro and in vivo characterization. AMG2850 is potent in vitro at rat TRPM8 (IC90 against icilin activation of 204 ± 28 nM), highly selective (>100-fold IC90 over TRPV1 and TRPA1 channels), and orally bioavailable (F po > 40 %). When tested in a skin-nerve preparation, AMG2850 blocked menthol-induced action potentials but not mechanical activation in C fibers. AMG2850 exhibited significant target coverage in vivo in a TRPM8-mediated icilin-induced wet-dog shake (WDS) model in rats (at 10 mg/kg p.o.). However, AMG2850 did not produce a significant therapeutic effect in rat models of inflammatory mechanical hypersensitivity or neuropathic tactile allodynia at doses up to 100 mg/kg. The lack of efficacy suggests that either TRPM8 does not play a role in mediating pain in these models or that a higher level of target coverage is required. The potential of TRPM8 antagonists as migraine therapeutics is yet to be determined.

Indexed as

Action PotentialsAnimalsBehavior, AnimalBlood PressureBrainCalciumCHO CellsCold TemperatureCricetinaeCricetulusFreund's AdjuvantHumansHyperalgesiaMaleMentholMice, Inbred C57BLAMG2850CalciumFreund's AdjuvanticilinMentholNaphthyridinesPyrimidinonesTrpm8 protein, ratTRPM Cation Channels

Identifiers

PMID25662185
PMCPMC4359714
OpenAlexW2040002172

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.