AzTrials
AzTrials

Respiratory FailureNCT05635903

Jet or Vibrating Mesh Nebulisation for Secretion Management in ICU

A study testing Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh Nebuliser, Intermittent nebulisation 0.9% saline Aerogen vibrating mesh Solo Nebuliser and Intermittent standard intermittent nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet Nebuliser in people with Respiratory Failure and Critical Illness, run by NHS Greater Glasgow and Clyde at 1 site in United Kingdom.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Critically unwell patients in Intensive Care have a decreased ability to effectively clear secretions. High secretion load is a major risk factor in the failure of tracheal extubation failure and the requirement for reintubation. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Respiratory Failure, Critical Illness
What is being tested?
Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh Nebuliser, Intermittent nebulisation 0.9% saline Aerogen vibrating mesh Solo Nebuliser and Intermittent standard intermittent nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet Nebuliser
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteUnited Kingdom
Study dates
22 Dec 2019to 22 Dec 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient aged 18-80 years at time of recruitment to study
  • Ventilated via an endotracheal tube or tracheostomy with an HME filter in the circuit
  • Secretion load defined as patient requiring suctioning at least 2 times in the 6 hours prior to recruitment
  • Sputum viscosity with grades 1 to 3 pourability in the Qualitative Sputum Assessment tool
  • Not yet received saline nebulisation in the 6 hours prior to recruitment
  • Likely to be ventilated via an endotracheal tube or tracheostomy for at least 3 days in the opinion of the treating clinician

Who cannot join

  • Pregnancy
  • Pulmonary embolus
  • Heart Failure (NYHA Grade III/IV)
  • Clinical evidence of frank pulmonary oedema
  • Cardiovascular instability (systolic BP ≤75 or heart rate ≥140)

Trial locations and contacts

1 site in 1 country.

malcolm SIm, MBChB contact

01414523430

malcolm.sim@ggc.scot.nhs.uk

malcolm watson, MBCHB contact

01414523430

malcolm.watson@ggc.scot.nhs.uk

United Kingdom1 site, 1 recruiting
  • Queen Elizabeth University Hospital

    Glasgow

    Malcolm Sim, MB ChB, 01414523430, malcolm.sim@ggc.scot.nhs.uk

    Malcolm j watson, MBchB, 01414523430, mwatson@doctors.org.uk

    Recruiting

Other trials in United Kingdom

About this study

Official title: Can Continuous or Intermittent Normal Saline Nebulisation Via a Vibrating Mesh Nebuliser or Intermittent Normal Saline Via a Standard Jet Nebuliser Improve the Lung Physiology and Secretion Viscosity in Mechanically Ventilated Patients?

Critically unwell patients in Intensive Care have a decreased ability to effectively clear secretions. High secretion load is a major risk factor in the failure of tracheal extubation failure and the requirement for reintubation. Extubation failure is a predictor of poor outcome independent of the severity of the underlying illness. Nebulisation of isotonic saline can be employed to manage secretions by reducing the secretion viscosity and facilitating clearance of respiratory sections during tracheal suction.

Standard jet nebulisers have been the mainstay of respiratory section management therapy in critical care since the early 1990s. A more recent development has been the vibrating mesh nebuliser. There is evidence of improved humidification and reduced water particle size and theoretically better transfer to the distal airways.

Read the detailed description

1.2 Rationale The vibrating mesh nebuliser (Aerogen technology) may be superior to standard nebuliser technology.

1.3 Study hypothesis Improved secretion management with reduced tenacity of respiratory sections and potentially improved lung physiology secondary to improved humidification or reduced size of nebulised particles? 2. STUDY OBJECTIVES

Primary Endpoint Pourability of respiratory secretions (As assessed by the Qualitative Sputum Assessment Tool)

(The QSA score will assess quantity, quality/stickiness/density and colour/appearance of secretions and is described and validated in the literature3,4)

Secondary endpoints

  • Volume of secretions (increased or decreased may be beneficial)
  • Work of breathing
  • Airway resistance
  • Number of number of additional nebulised doses of saline or other drugs administered during the study period
  • Ease of sampling, in the opinion of treating nurse
  • Frequency of requiring changing the HME(heat and moisture exchange) filter
  • Length of time on ventilator
  • Length of stay in ICU/HDU(Intensive care unit/high dependancy unit)
  • ICU Mortality
  1. STUDY DESIGN 3.1 Study Population

A total of 60 patients will be recruited to the study. Each patient will be randomised to receive:

Continuous nebulisation of 0.9% normal saline using the Aerogen Solo Nebuliser (50mls/24h via a syringe feed set) OR

Intermittent nebulisation of 0.9% normal saline using the Aerogen Solo Nebuliser (5mls, 6 hourly) OR

Intermittent standard nebulisation of 0.9% normal saline using the Intersurgical Cirrus 2 self-sealing Jet Nebuliser (5 mls, 6 hourly)

Being tested
Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh Nebuliser, Intermittent nebulisation 0.9% saline Aerogen vibrating mesh Solo Nebuliser, Intermittent standard intermittent nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet Nebuliser
Keywords
nebuliser, secretions
Medical subject headings
Respiratory Insufficiency, Critical Illness

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh NebuliserProcedure or surgery

    Continuous nebulisation of 0.9% saline using the Aerogen Solo vibrating mesh nebuliser

  • Intermittent nebulisation 0.9% saline Aerogen vibrating mesh Solo NebuliserProcedure or surgery

    Intermittent nebulisation of 0.9% saline using the Aerogen Solo vibrating mesh nebuliser

  • Intermittent standard intermittent nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet NebuliserProcedure or surgery

    standard intermittent nebulisation of 0.9% saline using the Intersurgical Cirrus 2 self-sealing Jet Nebuliser

Study groups in NCT05635903
Study groupRoleWhat they receive
Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh NebuliserExperimentalContinuous nebulization of 0.9% normal saline using the Aerogen Solo Nebuliser (50mls/24h continuous infusion using a syringe pump)
Receives: Procedure: Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh Nebuliser
Intermittent nebulisation 0.9% saline Aerogen Solo vibrating mesh NebuliserExperimentalIntermittent nebulization of 0.9% normal saline using the Aerogen Solo Nebuliser (5mls 0.9% normal saline nebulised every 6 hours)
Receives: Procedure: Intermittent nebulisation 0.9% saline Aerogen vibrating mesh Solo Nebuliser
Intermittent standard nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet NebuliserActive comparatorIntermittent standard nebulization of 0.9% normal saline using the Intersurgical Cirrus 2 self-sealing Jet Nebuliser ((5mls 0.9% normal saline nebulised every 6 hours)
Receives: Procedure: Intermittent standard intermittent nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet Nebuliser

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pourability of respiratory secretions (The QSA score will assess quantity, quality/stickiness/density and colour/appearance of secretions and is described and validated in the literature3,4)

    Pourability of respiratory secretions as assessed by the QSA (Qualitative Sputum Assessment) Tool 0-4. . As the QSA Tool score ranges from 1 to 4 in increments of 0.5, with 1 being the most pourable and 4 the least pourable.

    (The QSA score will assess quantity, quality/stickiness/density and colour/appearance of secretions and is described and validated Lopez-Vidriero MT, Charman J, Keal E, De Silva DJ, Reid L. Sputum viscosity: correlation with chemical and clinical features in chronic bronchitis. Thorax. 1973 Jul;28(4):401-8. PubMed ID: 4741442

    Measured: At 1000 and 1600 for 3 days

Secondary outcomes (9)
  1. Volume of secretions

    Total volume in ml of secretions aspirated from the patient's airway at 1000 and 1600 each day

    Measured: At 1000 and 1600 for 3 days

  2. Work of breathing

    Recorded by ventilator as pressure over volume curve for each breath in joules/min

    Measured: At 1000 and 1600 for 3 days

  3. Airway resistance

    Recorded by the ventilator in cm H2O/L/sec at 1000 and 1600 each day

    Measured: At 1000 and 1600 for 3 days

  4. Number of number of additional nebulised doses of saline or other drugs administered during the study period

    Number of nebulized drug doses of drugs administered excluding study drugs

    Measured: Number of administer nebulised drugs per 24hour per

  5. Ease of sampling, in the opinion of the treating nurse

    Qualitative assessment scale 1-10 . 1 very easy to sample-10 very difficult to obtain a sputum sample.

    Measured: At 1000 and 1600 for 3 days

  6. Frequency of requiring changing the HME filter

    Number of HME(heat moisture exchange) filter changes in the previous 24-hour period

    Measured: Number of filters used in each 24 hour period for 3 days

  7. Length of time on ventilator

    Total number of days ventilated

    Measured: 1 years after admission to ICU/HDU(Intensive care unit/high dependance unit)

  8. Length of stay in ICU

    Length of stay in ICU in days

    Measured: Number of day in ICU and HDU at Queen Elizabeth University hospital

  9. Mortality

    Alive at 28 days- Yes/NO

    Measured: 28 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Dec 2022
  2. Study start22 Dec 2019
  3. Primary completion22 Dec 2023 (estimated)
  4. Study completion22 Dec 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05635903
Sponsor's protocol ID
GN18RM440
Status last verified
Jan 2023
First submitted
19 Oct 2022
Last updated
2 Feb 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Thille AW, Richard JC, Brochard L. The decision to extubate in the intensive care unit. Am J Respir Crit Care Med. 2013 Jun 15;187(12):1294-302. doi: 10.1164/rccm.201208-1523CI.

    PubMed 23641924
  • Terzi N, Guerin C, Goncalves MR. What's new in management and clearing of airway secretions in ICU patients? It is time to focus on cough augmentation. Intensive Care Med. 2019 Jun;45(6):865-868. doi: 10.1007/s00134-018-5484-2. Epub 2018 Dec 5. No abstract available.

    PubMed 30519901
  • Jaber S, Quintard H, Cinotti R, Asehnoune K, Arnal JM, Guitton C, Paugam-Burtz C, Abback P, Mekontso Dessap A, Lakhal K, Lasocki S, Plantefeve G, Claud B, Pottecher J, Corne P, Ichai C, Hajjej Z, Molinari N, Chanques G, Papazian L, Azoulay E, De Jong A. Risk factors and outcomes for airway failure versus non-airway failure in the intensive care unit: a multicenter observational study of 1514 extubation procedures. Crit Care. 2018 Sep 23;22(1):236. doi: 10.1186/s13054-018-2150-6.

    PubMed 30243304
  • Keal EE, Reid L. Neuraminic acid content of sputum in chronic bronchitis. Thorax. 1972 Nov;27(6):643-53. doi: 10.1136/thx.27.6.643.

    PubMed 4647626
  • Lopez-Vidriero MT, Charman J, Keal E, De Silva DJ, Reid L. Sputum viscosity: correlation with chemical and clinical features in chronic bronchitis. Thorax. 1973 Jul;28(4):401-8. doi: 10.1136/thx.28.4.401.

    PubMed 4741442
  • Julious SA. Sample size of 12 per group rule of thumb for a pilot study. Pharmaceutical Statistics 2005; 4(4): 287-291.

  • Arnott A, Hart R, McQueen S, Watson M, Sim M. Prospective randomised unblinded comparison of sputum viscosity for three methods of saline nebulisation in mechanically ventilated patients: A pilot study protocol. PLoS One. 2023 Aug 17;18(8):e0290033. doi: 10.1371/journal.pone.0290033. eCollection 2023.

    PubMed 37590203

Questions about this trial

What is this clinical trial studying?

A study testing Continuous nebulisation 0.9% saline Aerogen Solo vibrating mesh Nebuliser, Intermittent nebulisation 0.9% saline Aerogen vibrating mesh Solo Nebuliser and Intermittent standard intermittent nebulisation of 0.9% saline Intersurgical Cirrus 2 self sealing Jet Nebuliser in people with Respiratory Failure and Critical Illness, run by NHS Greater Glasgow and Clyde at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 2 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact malcolm SIm, MBChB (01414523430, malcolm.sim@ggc.scot.nhs.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pourability of respiratory secretions (The QSA score will assess quantity, quality/stickiness/density and colour/appearance of secretions and is described and validated in the literature3,4) (time frame: At 1000 and 1600 for 3 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05635903, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Feb 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in