Asthma Clinical Trial
— PUFFINOfficial title:
The Efficacy and Mechanisms of Action of n-3 Poly-unsaturated Fatty Acid Supplementation in People With Non-steroidal Exacerbated Airways Disease and Uncontrolled Asthma
Asthma is a syndrome compromising many phenotypes including N-ERD (caused by increased 4-series leukotriene (LT) production). n-3 PUFA supplementation modulates 4-series LT and has anti-inflammatory effects. However, other than in a pilot study with dietary manipulation, the effects of N-ERD are unknown. The primary objective is to determine whether n-3 PUFA supplementation in people with N-ERD can improve asthma control using the asthma control questionnaire (ACQ-7). This is a placebo controlled randomised controlled parallel multicentre study with of 6g per day of PUFA for 6 months in people with N-ERD and poor asthma control
Status | Recruiting |
Enrollment | 98 |
Est. completion date | August 31, 2024 |
Est. primary completion date | August 31, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: 1. aged =18 years. N-ERD does not occur at birth and it rarely occurs in children. 2. physician labelled diagnosis of asthma. 3. history of N-ERD according EAACI guidelines(9) with evidence of one of 1) Clinical diagnosis as evidence by i. A reliable history of aspirin or NSAID induced respiratory reaction as evidenced by more than one reaction, reactions to two or more different NSAIDs or the last reaction occurring within the last 5 years plus ii. Recurrent nasal polyposis, anosmia, moderate to severe asthma, intolerance to alcohol and/or blood eosinophilia 2) Positive nasal or bronchial aspirin challenge(43) 4. ACQ of more than 1.5 as this indicates poor control. This is required to ensure there is a clinical need or a requirement to alter medication. 5. stable disease, as evidenced by a lack of change in asthma therapy within the last 6 weeks. Exclusion Criteria: 1. significant cardiac disease, respiratory disease or other cause for breathlessness other than asthma 2. severe or uncontrolled co-morbid disease (other than nasal polyps) which is likely to affect the outcome of the study 3. having had an upper or lower respiratory tract infection requiring antibiotics within four weeks of randomisation 4. receiving aspirin desensitisation therapy or biologic agents 5. receiving n-3 fatty acid oral supplements 6. current smoker or more than 15 pack-year smoking history 7. consumption of more than 21 units of alcohol per week as alcohol-induced respiratory symptoms are more common in N-ERD. 8. patients unable to give written informed consent. |
Country | Name | City | State |
---|---|---|---|
United Kingdom | Norfolk and Norwich University Hospitals NHS Foundation Trust | Norwich | Norfolk |
Lead Sponsor | Collaborator |
---|---|
Norfolk and Norwich University Hospitals NHS Foundation Trust | University of East Anglia |
United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in Asthma Control Questionnaire (ACQ) 6 | Asthma control questionnaire (ACQ) mean score of more than 1.5, as this indicates poor control. This is required to ensure there is a clinical need or a requirement to alter medication. | 24 weeks post-randomisation |
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