The purpose of this study is to demonstrate dose proportionality of the FF (50 microgram (mcg), 100 mcg or 200 mcg), when administered as a single and repeat dose from the NDPI containing FF formulated with lactose. In addition, the aim of this study is to determine the absolute bioavailability of the FF single strip product using the high strength product administered as a single dose with multiple inhalations and using 250 mcg intravenous (IV) FF. This is a, part-randomized, open-label, 4 way crossover study (4 periods) in healthy adult subjects. During each period, subjects will receive FF in the morning and serial pharmacokinetic (PK) sampling (for up to 10 days for the inhaled treatment and up to 3 days for the IV treatment) and safety assessments will be performed. Each period will be separated by a washout period of at least 7 days and a follow-up telephone call will occur 7 -14 days after the last dose of study drug. The total duration of the study will be approximately 13-14 weeks for each subject.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
36
Novel dry powder inhaler
Novel dry powder inhaler
Novel dry powder inhaler
Intravenous
GSK Investigational Site
Groningen, Netherlands
FF pharmacokinetics; parameters: (AUC(0-infinity)) , (AUC(0-24)) and (Cmax)
FF pharmacokinetics; area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC (0-infinity)), area under the concentration-time curve from zero (pre-dose) to 24 h (AUC (0-24)) and maximum observed concentration (Cmax). Blood samples for PK analysis of FF will be collected and analysis will be performed. Concentrations of FF will be determined in plasma samples using the currently approved analytical methodology.
Time frame: 54 days
Plasma FF PK parameters: t1/2, tmax, MRT for all treatments
Following plasma FF PK parameters will be evaluated: terminal phase half life (t1/2), time of occurrence of Cmax (tmax), mean residence time (MRT) for all treatments Blood samples for PK analysis of FF will be collected and analysis will be performed. Concentrations of FF will be determined in plasma samples using the currently approved analytical methodology.
Time frame: 54 days
Plasma FF PK parameters: V and CL for IV treatment
Following plasma FF PK parameters will be evaluated: volume of distribution (V) and plasma clearance (CL) for intravenous administration Blood samples for PK analysis of FF will be collected and analysis will be performed. Concentrations of FF will be determined in plasma samples using the currently approved analytical methodology.
Time frame: 3 days (Study Day 52 to Study Day 54)
Mean absorption time (MAT) for inhaled treatments
Blood samples for PK analysis of FF will be collected and analysis will be performed. Concentrations of FF will be determined in plasma samples using the currently approved analytical methodology.
Time frame: 44 days
Safety of FF
To assess the safety and tolerability of FF administered as single and repeat dose adverse events will be studied.
Time frame: 68 days
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