A 2-group healthy volunteer study to compare a breath actuated inhaler (BAI) and a pressurised metered dose inhaler (pMDI) with and without spacer.
Group 1 will assess pharmacokinetics, Group 2 will assess pharmacodynamics. PK interim analysis to determine requirement for PK extension. Group 1 (PK) blood sampling and safety assessments up to 36 hours post-dose for 3 study periods. Results from PK stage will determine if Group 2 (PD) is required. Group 2 (PD) will assess LABA only effects (as confirmed in interim analysis). Group 2 (PD) to include 2 overnight stays for 5 study periods. Volunteers will receive a single dose of study medication, with discharge on Day 2. Study treatments are fluticasone/formoterol BAI, fluticasone/formoterol pMDI with/without spacer, formoterol alone without spacer, and low dose fluticasone/formoterol without spacer. Volunteers will undergo blood sampling, and safety assessments up to the morning of discharge. An inspiratory flow recorder (IPR) will be used for training and to monitor inspiratory flow rate, inhaled volume and inhalation technique.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
125
Fluticasone/formoterol 125/5 µg breath actuated inhaler (BAI) (250/10 µg total dose)
Formoterol
Fluticasone/Formoteral 125/5µg pMDI without spacer
Unnamed facility
Belfast, United Kingdom
Pharmacokinetic parameters Composite measurement of Pharmacokinetic parameters (Cmax, AUCt, AUCINF).
Time frame: Pre dose to 36 hours post dose
Serum Potassium
Maximum reduction in serum potassium from pre-dose.
Time frame: Pre Dose to 6 hours post first dose
Vital Signs
Composite measurement of vital signs (heart rate and blood pressure)
Time frame: Pre Dose to 6 hours post dose
Serum Glucose
Maximum increase in Serum Glucose
Time frame: Pre Dose to 6 hours post dose
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Fluticasone/Formoteral 125/5µg pMDI with spacer
Fluticasone/Formoteral 125/5µg pMDI without spacer, low dose