Dal Negro 1997.

Methods	Setting: multicentre study Italy, hospital outpatient clinic Length of intervention period: 8 weeks Randomisation: yes, method not stated Allocation concealment: unclear Design: parallel group Masking: not stated Excluded: not stated Withdrawals: stated Baseline characteristics: no demographic data presented Jadad score: 1
Participants	79 adult adults Inclusion criteria: Adult patients with stable asthma (not defined) Regular treatment with BDP 1000 mcg/d No further details Exclusion criteria: No details
Interventions	BDP: 200 mcg 4xdaily (800 mcg/d) via Pulvinal DPI BUD: 200 mcg 4xdaily (800 mcg/d) via Turbuhaler DPI
Outcomes	FEV1 FVC FEF25‐75 MEF50 Morning PEFR Asthma symptom score
Notes	Study in abstract form only. No reply from trial sponsors to clarify details of randomisation procedure, further inclusion/exclusion criteria, patient withdrawals or outcomes data.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear