Head-to-head evidence
albuterol HFA (Armstrong's) vs Salbutamol HFA-152a
Same mechanism, same race: design-graded trial evidence for both assets, with the grading rationale shown. Grades describe the quality of the evidence, never the merits of either security.
Asthma
Shared mechanism: Beta-2 adrenergic receptor · full Asthma pipeline
albuterol HFA (Armstrong's)
Marketed by Amphastar Pharmaceuticals, Inc.
NCT00635505 · Phase 3 · terminated
This is a randomized, quadruple-blind, placebo- and active-controlled study with an adequate sample size measuring lung function directly, but no results have been posted yet, so the outcome is unknown.
Salbutamol HFA-152a
Developed by GlaxoSmithKline
NCT06261957 · Phase 3 · completed
The trial randomized 477 participants and used quadruple blinding with an active salbutamol comparator. Its primary clinical safety endpoint was the number of participants with adverse events, but results are not posted, so whether the primary comparison was favorable cannot be determined.
Next expected readout: February 2027 · NCT06433921 (registry estimate)
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: albuterol HFA (Armstrong's)'s landscape · Salbutamol HFA-152a's landscape