Anti-Inflammatory Reliever Therapy for Asthma Using Inhaled Budesonide/Formoterol As-needed With or Without Maintenance in South African Children: A Pragmatic Open Label Phase 3 Randomised Controlled Trial
This is a Phase 3 single-centre open label randomised controlled trial with two equal sized groups to assess the efficacy of budesonide/formoterol 80/4.5 (6-11 years) and 160/4.5 (12-18 years) compared to the standard of care in reducing asthma exacerbations over 52 weeks. Children and adolescents with a diagnosis of asthma or newly diagnosed with asthma will be screened for eligibility for enrolment. Those who had an asthma exacerbation in the previous year will be randomised 1:1, to either receive budesonide/formoterol inhaler for both symptom relief and for chronic anti- inflammatory maintenance therapy or the standard of care which is separate inhalers for symptom relief (short acting bronchodilator salbutamol) and chronic maintenance therapy with inhaled corticosteroids (beclomethasone or budesonide) and/or long-acting beta agonists or montelukast as determined by treating physicians. All asthma exacerbations and clinic/hospital admissions will be recorded for the duration of the 52-week follow-up. Participants will be followed up at 13, 26, 39 and 52 weeks. The 13- and 39-week visit will be telephonic visits to capture the primary end-point i.e. asthma exacerbations. Adverse events and medication changes data will also be collected. An independent Data and Safety Monitoring Board (DSMB) will be convened for this study with expertise in asthma and asthma clinical trials. The purpose of the DSMB will be to monitor the study for safety and operational futility with pre-defined stopping criteria. In addition, a Trial Steering Committee (TSC) will also provide overall supervision of the trial and ensure the trial is delivered in accordance with ICH-GCP. The TSC has been established with an independent Chair and include additional independent members including an observer early career researcher. Representatives of the Trial Funder (NIHR) and Sponsor (AHRI) will be invited to all TSC meetings.
• Age for inclusion children and adolescents 6-18 years at the time of consent
• Known asthmatic on treatment.
• Newly diagnosed asthma based on investigator review and/or medical report.
• All patients will have their asthma diagnosis confirmed (both new or known asthmatic patients) by either spirometry with reversibility or excessive diurnal variability by PEFR twice daily over 2 weeks.
• Ability to perform Peak Expiratory Flow rate and/or bronchodilator reversibility testing.
• Only participants with mild, or moderate asthma , based on medical history
• At least one exacerbation of asthma in the past year as defined by an event requiring treatment with systemic corticosteroids for ≥3 days and/or a hospitalisation/emergency room visit for asthma requiring treatment with systemic corticosteroids.
• Written consent from the participant or parent/guardian and assent from study participants where applicable.
• Participant and/or parent/guardian agrees to comply with the study procedures, including the completion of the visits and be available for contact for telephonically for the non-contact visits