Evidence mapPaperPMID 39762067Full record

Trial reportBMJ open respiratory research2025

Home high-flow therapy during recovery from severe chronic obstructive pulmonary disease (COPD) exacerbation: a mixed-methods feasibility randomised control trial.

Rebecca F D'Cruz, Anne Rossel, Georgios Kaltsakas, Eui-Sik Suh, Abdel Douiri, Louise Rose, Patrick B Murphy, Nicholas Hart

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMJ open respiratory research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. Article
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

8 authors.

Rebecca F D'CruzLane Fox Clinical Respiratory Physiology Research Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK rebecca.dcruz@gstt.nhs.uk.ORCID http://orcid.org/0000-0001-5245-9911
Anne RosselLane Fox Clinical Respiratory Physiology Research Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Georgios KaltsakasLane Fox Clinical Respiratory Physiology Research Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Eui-Sik SuhLane Fox Clinical Respiratory Physiology Research Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Abdel DouiriSchool of Population Health and Environmental Sciences, King's College London, London, UK.
Louise RoseKing's College London Florence Nightingale School of Nursing and Midwifery, London, UK.
Patrick B MurphyLane Fox Clinical Respiratory Physiology Research Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Nicholas HartLane Fox Clinical Respiratory Physiology Research Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPatients recovering from severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD) have a 30-day readmission rate of 20%. This study evaluated the feasibility of conducting a randomised controlled trial to evaluate clinical, patient-reported and physiological effects of home high-flow therapy (HFT) in addition to usual medical therapy, in eucapnic patients recovering from AECOPD to support the design of a phase 3 trial.

methodsA mixed-methods feasibility randomised controlled trial (quantitative primacy, concurrently embedded qualitative evaluation) (ISRCTN15949009) recruiting consecutive non-obese patients hospitalised with AECOPD not requiring acute non-invasive ventilation. Participants were randomised to receive usual care or usual care and home HFT (37°C, 30 L/min) with weekly home-based follow-up for 4 weeks to collect data on: device usage, breathlessness (modified Borg scale, visual analogue scale, Multidimensional Dyspnoea Profile), health-related quality of life (COPD Assessment Test (CAT), Clinical COPD Questionnaire), pulse oximetry, spirometry and inspiratory capacity, parasternal electromyography and actigraphy. Semistructured interviews were conducted in week 4. Trial progression criteria were: ≥40% of eligible patients randomised, ≤20% attrition, ≥70% complete data, and no device-related serious adverse events (SAE).

results18 of 45 eligible patients were randomised (age 69±5 years, 44% female, body mass index 23±5 kg/m

conclusionsThe data from this feasibility study support the progression to a phase 3 randomised clinical trial investigating the effect of home (HFT) on admission-free survival in COPD patients recovering from a severe exacerbation. TRIAL REGISTRATION NUMBER: The study received ethical approval (REC19/LO/0194) and was prospectively registered (ISRCTN15949009).

Indexed as

Disease ProgressionFeasibility StudiesPulmonary Disease, Chronic ObstructiveQuality of LifeAgedFemaleHome Care ServicesHumansMaleMiddle AgedOxygen Inhalation TherapySeverity of Illness IndexTreatment OutcomeCOPD ExacerbationsEmphysemaLung PhysiologyPatient Outcome AssessmentRespiratory Function TestRespiratory Muscles

Identifiers

PMID39762067
PMCPMC11784159

What Socratic 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 Socratic graph.