BL reports support from AstraZeneca for grants (an external supported research grant with benralizumab and multicentre trial with tezepelumab), and support to attend the European Respiratory Society meeting and personal fees (consulting and talks); support from Regeneron for grants (an external supported research grant with dupilumab) and support to attend the European Respiratory Society meeting; and the son of BL is presently an employee of AstraZeneca. RM has been on an advisory board for management of soft food bolus obstruction organised by Dr Falk Pharma UK. RC reports personal fees (talks) and support for attending the European Respiratory Society meeting from AstraZeneca; personal fees (consulting) from Vitalograph; and personal fees (talks) from Thorasys.