Non Invasive Ventilation for Acute Exacerbations in Adult CF (NIVinCF)
A Mixed Methods Study Comparing the Clinical Efficacy With the Patient Experience of Non-invasive Ventilation During an Acute Exacerbation Complicated by Respiratory Failure in Adult Cystic Fibrosis
Cystic Fibrosis (CF) is a life limiting illness. Median predicted UK survival is 41.4 years (UK CF Registry 2011). The commonest cause of death is respiratory failure.
Non invasive ventilation (NIV) is a system which delivers a preset pressure to supplement the size and depth of each breath. It is introduced in CF to manage established respiratory failure. A nose or a mask which covers both the nose and mouth allows flexible ventilation, is used just at night, or for part of the day in addition or for 24 hours as clinical status indicates. It is introduced within a normal ward environment and then continued longterm at home.Once respiratory failure is established longterm noninvasive ventilation is introduced throughout 24 hours and multidisciplinary assessment concludes that the timing is appropriate for the individual.
This study aims to evaluate a potential development of current practice: the use of non invasive ventilation during hospital admission only to enhance recovery from an acute exacerbation which has caused respiratory failure in those individuals where long term non invasive ventilation is not yet indicated. A mixed methods design will allow description of the experience of noninvasive ventilation during a semistructured interview to add to understanding of the results from an experiment designed to measure the differences between noninvasive ventilation and standard care.
Aim: To compare the clinical efficacy with the patient experience of NIV on recovery from an acute respiratory exacerbation complicated by respiratory failure in adult Cystic Fibrosis.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Design: The study will use a mixed methodology and it will be in 2 phases. Phase I A group randomised controlled trial
The following measurements will be performed on days 1, 3, 7, 10, 14 and twice weekly until discharge:
The exact timing of measurements will be planned by the participant and the researcher.
All of the outcome measures form part of routine clinical practice except the symptom score; the Cystic Fibrosis Respiratory Symptoms Diary (CFRSD V2.0) (Goss et al., 2009)
- Early morning and day time carbon dioxide (CO2) level.
- Day time oxygen levels
- Lung function Forced Expiratory Volume in 1 second (FEV1) and Forced Vital Capacity (FVC)
- Day time resting Respiratory Rate (RR), Heart Rate (HR)
- Symptom score CFRSD
Phase II A qualitative exploration of the experience of using NIV for adults with Cystic Fibrosis during an acute exacerbation
Methods: Prior to discharge a semistructured interview designed to explore the experience of using noninvasive ventilation will be undertaken by a clinical psychologist from the Cystic Fibrosis multidisciplinary team. The interviews will be undertaken purely for the research project, recorded and transcribed verbatim by the lead investigator. Thematic analysis will be undertaken to interpret and explore the individual's experience. Credibility checking of interpretation will be undertaken by the clinical psychologists and within academic supervision sessions.
Study Type
Study Type
Enrollment (Anticipated)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Contact
Study Contact
- Name: Susan C Johnson, MSc MCSP
- Phone Number: 5007 0161291
- Email: susan.johnson@uhsm.nhs.uk
Study Contact Backup
- Name: Rowland BrightThomas, MB ChB, MRCP, MD
- Phone Number: 5007 0161291
- Email: Rowland.brighthomas@uhsm.nhs.uk
Study Locations
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Manchester
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Wythenshawe, Manchester, United Kingdom, M23 9LT
- Recruiting
- Manchester Adult Cystic Fibrosis Centre, University Hospitals South Manchester
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Principal Investigator:
- Susan C Johnson, MSc MCSP
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adult Cystic Fibrosis
- Hospital admission to Pearce Ward Manchester Adult Cystic Fibrosis Centre
- Acute respiratory exacerbation conforming with a standard definition of pulmonary exacerbation (Fuchs et al 1994).
- An admission day time CO2 > 6 kilopascal (kPa) on standard therapy
- Freely given informed consent.-
- 24.3.15 substantial amendment approval for an admission early morning CO2 > 6 kPa
Exclusion Criteria:
- A day time CO2 >8.0 kPa
- respiratory acidosis
- clinical exclusion by CF consultant physician or clinical psychologist
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Non invasive ventilation (NIV)
Non invasive ventilation used for the first 7 days of study
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Other Names:
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Active Comparator: Standard Care
High Flow Controlled Oxygen Therapy
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Change in day time carbon dioxide (CO2)
Time Frame: Day 7
|
Day 7
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Early morning oxygen (O2) and CO2 levels
Time Frame: days 1,3,5,7,10 and 14
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days 1,3,5,7,10 and 14
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Lung function (FEV1 and FVC)
Time Frame: Day 7, 14
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Day 7, 14
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Respiratory Rate
Time Frame: days 1,3,5,7,10 and 14
|
days 1,3,5,7,10 and 14
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|
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Heart Rate
Time Frame: Days 1,3,5,7,10 and 14
|
Days 1,3,5,7,10 and 14
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Symptom score (CFRSD)
Time Frame: days 1,3,5,7,10 and 14
|
Cystic Fibrosis Respiratory Symptom Diary (Daily Recall)
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days 1,3,5,7,10 and 14
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Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Semi structured interview
Time Frame: Day 14
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Psychologist delivered semi structured interview discussing participant experience of non invasive ventilation (NIV)
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Day 14
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Susan C Johnson, MSC MCSP, Manchester Adult Cystic Fibrosis Centre, University Hospitals South Manchester
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Anticipated)
Primary Completion
Study Completion (Anticipated)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 1199
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