Evidence map›Paper›PMID 35295236›Full record

ArticleERJ open research2022

A double-blind randomised placebo-controlled trial investigating the effects of lesogaberan on the objective cough frequency and capsaicin-evoked coughs in patients with refractory chronic cough.

Huda Badri, Carmen Gibbard, Dimitra Denton, Imran Satia, Bashar Al-Sheklly, Rachel J Dockry, Kimberley Holt, Kevin McGuiness, Sam Treadway, Peter Whorwell and 8 more

Open access · goldAbstract read
In one paragraph

Article in ERJ open research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Cough monitoring systems in adults with chronic respiratory diseases: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Gamma-aminobutyric acid for delaying type 1 diabetes mellitus: an update.Annals of pediatric endocrinology & metabolism · 2024
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Cough hypersensitivity and chronic cough.Nature reviews. Disease primers · 2022
    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

18 authors at 5 institutions in 3 countries.

Huda BadriDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.ORCID https://orcid.org/0000-0002-6134-4347
Carmen GibbardDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.
Dimitra DentonDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.
Imran SatiaDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.
Bashar Al-ShekllyDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.
Rachel J DockryDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.ORCID https://orcid.org/0000-0002-0908-3362
Kimberley HoltDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.ORCID https://orcid.org/0000-0003-0413-8085
Kevin McGuinessWythenshawe Hospital, Manchester University Foundation Trust, Manchester, UK.
Sam TreadwayWythenshawe Hospital, Manchester University Foundation Trust, Manchester, UK.
Peter WhorwellDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.
Lesley HoughtonDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.
Augustine LeePulmonary Medicine, Mayo Clinic, Jacksonville, FL, USA.ORCID https://orcid.org/0000-0001-8018-5145
K Jane EscottEmerging Innovations, BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK.
Theresa LeePulmonary Medicine, Mayo Clinic, Jacksonville, FL, USA.
Greame WilkinsonAstraZeneca, Macclesfield, UK.
Alison HoltAstraZeneca, Macclesfield, UK.
Brendan J CanningJohns Hopkins Asthma and Allergy Centre, Baltimore, MD, USA.
Jacky A SmithDivision of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK.ORCID https://orcid.org/0000-0001-8837-4928
University of Manchester · GBAstraZeneca (United Kingdom) · GBMayo Clinic in Florida · USPennine Acute Hospitals NHS Trust · GBUniversity of Leeds · GB

Funding

Medical Research Council MR/K015141/1Wellcome Trust
6 · The paper itself

Abstract

Objective: Baclofen is a centrally acting γ-aminobutyric acid type B (GABA Design: We performed a single-centre, placebo-controlled, double-blind randomised crossover study in patients with chronic cough, refractory to the treatment of underlying conditions. Patients were randomised to treatment with lesogaberan 120 mg modified release twice daily or matched placebo for 2 weeks and then crossed over to the alternative therapy after a 2-week washout. The primary end-point was 24-h cough frequency measured with an acoustic monitoring system. In addition, cough responses to capsaicin were measured, and gastro-oesophageal reflux assessed by 24-h pH/impedance at screening. Results: 22 patients were randomised to receive lesogaberan/placebo or placebo/lesogaberan (female (73%); mean±sd age 63.7±7.2 years; median (interquartile range) cough duration 10.5 (5.8-17.0) years; mean (95% CI) 45 (29-67) reflux events in 24 h; two patients had abnormal oesophageal acid exposure times). Although lesogaberan reduced cough counts by 26% over placebo, this did not reach statistical significance (p=0.12). However, lesogaberan did significantly improve cough responses to capsaicin (p=0.04) and the number of cough bouts (p=0.04) compared with placebo. Lesogaberan was well tolerated in this study. Conclusions: Lesogaberan improved cough hypersensitivity and the number of bouts of coughing, but not coughs per hour. This implies a possible role for peripheral GABA

Identifiers

PMID35295236
PMCPMC8918934
OpenAlexW4214878209

What OpenQuestion holds

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LicenceCC BY-NC
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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.