Evidence map›Paper›PMID 27606340›Full record

ArticleAnnals of clinical and translational neurology2016

Metabotropic glutamate receptor 5: a target for migraine therapy.

Maggie W Waung, Simon Akerman, Mark Wakefield, Charlotte Keywood, Peter J Goadsby

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2016. 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
4.9field-weighted citation impact, top 5% 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, 43 citations in OpenAlex.

  1. The therapeutic pipeline in migraine: What does the future hold?Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  2. Review
  3. Glutamate as a Therapeutic Substrate in Migraine.International journal of molecular sciences · 2025
    Review
  4. Review
  5. Article
  6. Enhanced mGluRCell death & disease · 2024
    Article
  7. Review
  8. Genetic Mechanisms of Migraine: Insights from Monogenic Migraine Mutations.International journal of molecular sciences · 2023
    Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Glutamate and Its Receptors as Therapeutic Targets for Migraine.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2018
    Review
  19. 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

5 authors at 2 institutions in 3 countries.

Maggie W WaungDepartment of Neurology University of California, San Francisco San Francisco California.
Simon AkermanDepartment of Neurology University of California, San Francisco San Francisco California; Present address: Department of Oral and Maxillofacial Pathology, Radiology and Medicine New York University College of Dentistry New York City New York.
Mark WakefieldAddex Pharma Geneva Switzerland; Present address: Outsourcing Management (Ext)Oncology Business Unit Novartis Pharma AGPostfach CH-4002 Basel Switzerland.
Charlotte KeywoodAddex Pharma Geneva Switzerland; Present address: Minerva Pharmaceutical Consulting Ltd London United Kingdom.
Peter J GoadsbyDepartment of Neurology University of California, San Francisco San Francisco California; Basic and Clinical Neurosciences Institute of Psychiatry, Psychology and Neuroscience Kings College London London United Kingdom.
University of California, San Francisco · USAddex Therapeutics (Switzerland) · CH

Funding

NINDS Research Education Programs for Residents and Fellows in Neurology, Neurosurgery, Neuropathology, Neuroradiology and Emergency Medicine (R25)R25NS070680 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOSEPHSON, SCOTT ANDREW · 2010 to 2023
$6.8M
NINDS NIH HHS R25 NS070680
6 · The paper itself

Abstract

introductionMany patients suffering from migraine gain little relief from existing treatments partly because many existing acute and preventive therapies used in migraine have been adopted from other neurologic conditions such as depression or epilepsy. Here, we present data supporting a new migraine-specific target, the mGlu5 receptor.

methodsWe studied the effect of mGlu5 blockade using ADX10059, on neuronal firing in the trigeminocervical complex (TCC) and durovascular effects of nociceptive trigeminovascular activation in the anesthetized rat. The clinical potential of the mGlu5 mechanism was tested with ADX10059 orally in a double-blind placebo-controlled, parallel group, clinical trial.

resultsThe negative allosteric mGlu5 modulator ADX10059 attenuated dural vasodilator responses to meningeal stimulation in a dose-dependent manner, comparable to naratriptan, while the N-methyl-d-aspartate receptor blocker MK-801 had no effect. ADX10059 reduced responses of trigeminocervical neurons to dural stimulation, most strikingly affecting their spontaneous firing rate. Immunostaining identified mGlu5 and not mGlu1a receptors in the TCC. The primary efficacy endpoint for the clinical trial, 2 h pain free, demonstrated a significant effect of ADX10059 375 mg, 17%, versus placebo, 5%. No serious adverse events were reported at the primary dose, with transient dizziness being the most common treatment-emergent event at 48%.

interpretationOur findings provide preclinical and clinical proof of concept establishing mGlu5 as a novel therapeutic target in the treatment of migraine. Although ADX10059 is unsuitable as a therapeutic candidate, because of hepatoxicity detected in a subsequent study, the data open a new direction for migraine research and therapy.

Identifiers

PMID27606340
PMCPMC4999590
OpenAlexW2468790958

What OpenQuestion holds

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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.