Evidence map›Paper›PMID 34322861›Full record

ReviewPharmacoEconomics - open2021

gammaCore for Cluster Headaches: A NICE Medical Technologies Guidance.

Susan O'Connell, Megan Dale, Helen Morgan, Kimberley Carter, Rhys Morris, Grace Carolan-Rees

Open access · goldAbstract readReview
In one paragraph

Review in PharmacoEconomics - open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

  1. Non-Invasive Vagus Nerve Stimulation in Cluster Headache: A Clinical Practice Guideline.Pain practice : the official journal of World Institute of Pain · 2025
    Review
  2. Review
  3. 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

6 authors at 3 institutions in 1 country.

Susan O'ConnellCedar, Cardiff and Vale University Health Board, Cardiff, UK. Susan.OConnell@wales.nhs.uk.ORCID http://orcid.org/0000-0002-5887-2771
Megan DaleCedar, Cardiff and Vale University Health Board, Cardiff, UK.
Helen MorganCedar, Cardiff University, Cardiff, UK.
Kimberley CarterNational Institute for Health and Care Excellence, Manchester, UK.
Rhys MorrisCedar, Cardiff and Vale University Health Board, Cardiff, UK.
Grace Carolan-ReesCedar, Cardiff and Vale University Health Board, Cardiff, UK.
Cardiff and Vale University Health Board · GBCardiff University · GBNational Institute for Health and Care Excellence · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cluster headaches are excruciating attacks of pain that can last between 15 min and 3 h. Cluster headaches can be episodic, where patients have long pain-free intervals between attacks, or chronic, where they do not. As part of the Medical Technologies Evaluation Programme, the UK National Institute for Health and Care Excellence (NICE) considered the clinical effectiveness and cost impact of gammaCore (electroCore), a handheld, patient-controlled device used to treat and prevent cluster headache. gammaCore is a non-invasive vagus nerve stimulator, the aim of which is to modify pain signals by stimulating the vagus nerve through the skin of the neck. Evidence suggests that gammaCore reduces the intensity and frequency of cluster headaches and that the addition of gammaCore to standard care is cost saving. Therefore, the guidance published by NICE in December 2019 recommends routine adoption of gammaCore into the UK national health service. However, the guidance noted that gammaCore does not work for everyone and recommended that treatment with gammaCore should stop after 3 months in patients whose symptoms do not improve.

Identifiers

PMID34322861
PMCPMC8611122
OpenAlexW3185824831

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.