This is a Phase I, randomized, double-blind, single-dose, single-site, three way cross-over study to assess the pharmacokinetic (PK) and safety of BGF MDI with HFO propellant compared with BGF MDI with HFA propellant in healthy participants (male or female).
The study will comprise of:
* A Screening period of up to 27 days;
* Three Treatment periods: Participants will receive a single dose of the study intervention on three separate occasions (Period 1, Period 2 and Period 3), with the final dose on Day 2 of Treatment Period 3, and a washout period of 5 to 7 days between administration of each dose;
* A final Safety Follow-up within 5 to 7 days after the last administration of the study intervention in Treatment Period 3.
Participants will receive all the treatments as a single dose (2 inhalations) (Treatment A \[BGF MDI HFO - test formulation\], and Treatment B \[BGF MDI HFA - reference formulation\]) in one of the 3 possible treatment sequences: ABB, BAB, or BBA. Each participant will be involved in the study for up to 52 days.
