Safety of Nasal Influenza Immunisation in Children With Asthma
SNIFFLE-4
2 other identifiers
interventional
479
0 countries
N/A
Brief Summary
A new influenza vaccine, known as LAIV (Live Attenuated Intranasal Vaccine) has recently been approved by a number of licensing boards and is given by a spray into the nose. In the United Kingdom (UK), the vaccine has been demonstrated to be highly effective against influenza infection. Further, despite concerns that LAIV can cause wheezing in children under age 2 years, the previous SNIFFLE studies have demonstrated it to be safe in children over 2 years with mild-moderate asthma. The objective of this multicentre study is to further assess the safety of intranasal LAIV in children with asthma and recurrent wheeze, including those with severe symptoms.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4 asthma
Started Oct 2016
Shorter than P25 for phase_4 asthma
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 4, 2016
CompletedFirst Posted
Study publicly available on registry
August 15, 2016
CompletedStudy Start
First participant enrolled
October 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2017
CompletedResults Posted
Study results publicly available
April 26, 2019
CompletedMay 10, 2019
May 1, 2019
5 months
August 4, 2016
February 14, 2019
May 8, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Change in Asthma Symptoms and Control Pre and 4 Weeks Post LAIV, as Assessed by Validated Questionnaire
The validated questionnaire to be used will depend on the age of the enrolled child: * Age 2-4 years: TRACK questionnaire * Age 5-11 years: Children's Asthma Control Test (C-ACT) score * Age 12+ years: Asthma Control Test (ACT) score The change in score (using the appropriate questionnaire for age) between pre- and 4 weeks post LAIV will be used to assess the primary outcome across all participants. a change in (c-)ACT of at least 3 points, or 10 points for TRACK will be determined a significant change. For TRACK, the minimum and maximum score possible is 0 and 100 respectively, the higher the score, the better is symptom control. For c-ACT, the minimum and maximum score possible is 0 and 27 respectively, the higher the score, the better controlled are asthma symptoms. For ACT, the minimum and maximum score possible is 5 and 25 respectively, the higher the score, the better controlled are asthma symptoms.
4 weeks post LAIV
Secondary Outcomes (1)
Incidence of Adverse Events (AE) and Serious Adverse Events (SAEs) in Children Receiving LAIV
Up to 4 weeks post LAIV administration
Study Arms (1)
Asthma
EXPERIMENTALLAIV administration in children with asthma receiving treatment according to British Thoracic Society step 2+
Interventions
Eligibility Criteria
You may qualify if:
- Aged 2 - 18 years old (inclusive)
- Physician diagnosis of asthma or recurrent wheezing (by the hospital specialist) AND (i) in children age 2-4 years: ≥2 exacerbations in the past year requiring oral steroids or observation in-hospital beyond 4 hours duration, OR (ii) in children ≥ 5 years of age, receiving treatment equivalent to at least BTS/SIGN step 2 therapy.
- Written informed consent from parent/guardian (or the patient themselves from age 16 years), with assent from children aged 8 years and above wherever possible.
You may not qualify if:
- Admission to Paediatric Intensive Care for invasive ventilation due to a respiratory illness in the preceding 2 years.
- Contraindications to LAIV (notwithstanding allergy to egg protein), which include:
- Hypersensitivity to the active ingredients, gelatin or gentamicin (a possible trace residue)
- Previous systemic allergic reaction to LAIV
- Previous allergic reaction to an influenza vaccine (not LAIV) is a relative contra-indication, which must be discussed with the site PI to confirm patient suitability
- Children/adolescents who are clinically immunodeficient due to conditions or immunosuppressive therapy such as: acute and chronic leukaemias; lymphoma; symptomatic HIV infection; cellular immune deficiencies; and high-dose corticosteroids\*\*.
- \*\*High-dose steroids is defined as a treatment course for at least one month, equivalent to a dose greater than 20mg prednisolone per day (any age), or for children under 20kg, a dose greater than 1mg/kg/day.
- NB: LAIV is not contraindicated for use in individuals with asymptomatic HIV infection; or individuals who are receiving topical/inhaled/low-dose oral systemic corticosteroids or those receiving corticosteroids as replacement therapy, e.g. for adrenal insufficiency.
- Children and adolescents younger than 18 years of age receiving salicylate therapy because of the association of Reye's syndrome with salicylates and wild-type influenza infection.
- pregnancy
- Contraindications to vaccination on that occasion, e.g. due to child being acutely unwell:
- Febrile ≥38.0 degrees C in last 72 hours
- \*Acute wheeze in last 72 hours requiring treatment beyond that normally prescribed for regular use by the child's treating healthcare professional
- \*Recent admission to hospital in last 2 weeks for acute asthma
- \*Current oral steroid for asthma exacerbation or course completed within last 2 weeks
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Imperial College Londonlead
- Public Health Englandcollaborator
Related Publications (3)
Turner PJ, Southern J, Andrews NJ, Miller E, Erlewyn-Lajeunesse M; SNIFFLE Study Investigators. Safety of live attenuated influenza vaccine in atopic children with egg allergy. J Allergy Clin Immunol. 2015 Aug;136(2):376-81. doi: 10.1016/j.jaci.2014.12.1925. Epub 2015 Feb 13.
PMID: 25684279BACKGROUNDTurner PJ, Southern J, Andrews NJ, Miller E, Erlewyn-Lajeunesse M; SNIFFLE-2 Study Investigators. Safety of live attenuated influenza vaccine in young people with egg allergy: multicentre prospective cohort study. BMJ. 2015 Dec 8;351:h6291. doi: 10.1136/bmj.h6291.
PMID: 26645895BACKGROUNDJackson D, Pitcher M, Hudson C, Andrews N, Southern J, Ellis J, Hoschler K, Pebody R, Turner PJ, Miller E, Zambon M. Viral Shedding in Recipients of Live Attenuated Influenza Vaccine in the 2016-2017 and 2017-2018 Influenza Seasons in the United Kingdom. Clin Infect Dis. 2020 Jun 10;70(12):2505-2513. doi: 10.1093/cid/ciz719.
PMID: 31642899DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr Paul Turner
- Organization
- Imperial College London
Study Officials
- PRINCIPAL INVESTIGATOR
Paul J Turner
Imperial College London / Imperial College Healthcare NHS Trust / Public Health England
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MRC Clinician Scientist
Study Record Dates
First Submitted
August 4, 2016
First Posted
August 15, 2016
Study Start
October 1, 2016
Primary Completion
March 1, 2017
Study Completion
March 1, 2017
Last Updated
May 10, 2019
Results First Posted
April 26, 2019
Record last verified: 2019-05
Data Sharing
- IPD Sharing
- Will not share