Evidence map›Paper›PMID 29658795›Full record

SynthesisExpert opinion on pharmacotherapy2018

An update and systematic review on drug therapies for the treatment of refractory chronic cough.

Nicole M Ryan, Anne E Vertigan, Surinder S Birring

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Expert opinion on pharmacotherapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 2 pooled it
7.0field-weighted citation impact, top 2% 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

50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 89 citations in OpenAlex.

  1. Diagnosis and Treatment of Adult Patients with Cough.Respiration; international review of thoracic diseases · 2025
    Guideline
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  14. Increased Resistance of the Peripheral Airways in Patients with Unexplained Chronic Cough.Respiration; international review of thoracic diseases · 2025
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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

3 authors at 3 institutions in 2 countries.

Nicole M Ryana Clinical Toxicology Research Group, School of Medicine and Public Health , The University of Newcastle, Calvary Mater Hospital , Newcastle , Australia.ORCID 0000-0003-0334-1938
Anne E Vertiganb Centre for Asthma and Respiratory Diseases, School of Medicine and Public Health , Hunter Medical Research Institute, The University of Newcastle , Newcastle , Australia.
Surinder S Birringd Division of Asthma, Allergy & Lung Biology, School of Transplantation, Immunology, Infection & Inflammation Sciences, Faculty of Life Sciences & Medicine , King's College London , London , UK.
Calvary Mater Newcastle Hospital · AUJohn Hunter Hospital · AUKing's College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionChronic Cough (CC) is common and often associated with significant comorbidity and decreased quality of life. In up to 50% of cases, the cough is refractory despite extensive investigation and treatment trials. It is likely that the key abnormality in refractory CC is dysfunctional, hypersensitive sensory nerves, similar to conditions such as laryngeal hypersensitivity and neuropathic pain. AREAS COVERED: The aim of this systematic review is to assess drug therapies for refractory CC. The authors review the current management of CC and provide discussion of the similarities between neuropathic pain and refractory CC. They review repurposed and new pharmacological treatments. Several meta-analyses were performed to compare the efficacy of treatments where possible. EXPERT OPINION: Repurposed pain medications such as gabapentin and pregabalin reduce the frequency of cough and improve quality of life. Along with speech pathology, they are important and alternate treatments for refractory CC. However, more treatments are needed and the P2X3 ion channel receptor antagonists show the most promise. With a better understanding of neuronal activation and sensitisation and their signal processing in the brain, improved animal models of cough, and the use of validated cough measurement tools, more effective treatments will develop.

Indexed as

Chronic DiseaseCoughHumansTreatment OutcomeAntitussivescough hypersensitivity syndromeion channel receptor antagonistsneuromodulating drugsrefractory chronic cough

Identifiers

PMID29658795
PMCPMC5935050
OpenAlexW2801128298

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.