Asthma
Conditions
Keywords
GW870086X, inhaled, asthma, cortisol, pharmacokinetics, osteocalcin
Brief summary
GW870086X is a novel inhaled steroid that has an improved safety profile over other steroids but is also less potent. This study will look at higher doses to confirm the improved safety profile.
Detailed description
A randomized, double-blind, placebo-controlled, dose ascending, 3-cohort parallel group study to measure the systemic cortisol profile and evaluate the safety, tolerability and pharmacokinetics of GW870086X, administered as single doses (12mg and 15mg),and repeat doses over 3 days (6mg, 12mg and 15mg) in healthy male subjects.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* Healthy male subjects * Liver function tests normal * 18 - 45 years old * Non smoker * Can provide written informed consent * Available to complete the whole trial * Can use the inhalation device correctly * Able to read, understand and write English
Exclusion criteria
* Deemed suitable healthy subject * History to sensitivity to the study medication * Any history of breathing problems in adult life * Participated in another trial within 30 days or 5 half-lives of the new chemical entity * Exposed to more than 4 new chemical entities within 12 months * Donated \>500 mL blood within 2 months of screening * Haemoglobin level \< 13g/dl * Use of prescription or non-prescription drugs within 7 days of first dose * Taking drugs that significantly inhibit cytochrome P450 subfamily enzyme CYP3A4 * Drinks more than 4 units a day or 28 units a week * Cannot use DISKHALER device correctly * Positive HepB, HepC within 3 months of screening * Positive HIV test * Positive pre study drug/alcohol screen * Significant cardiac conduction abnormalities * Risk of non-compliance
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Effect of GW870086X on cortisol levels (naturally produced steroid hormone) in the body during a single dose and after 3 days of dosing | 3 days |
Secondary
| Measure | Time frame |
|---|---|
| Total urinary free cortisol excretion | over 24 hours on Day 1 and Day 3. |
| Serum osteocalcin weighted mean | over 24 hours on Day 3. |
| Fasting glucose | on Day 1 |
| mRNA steroid responsive gene panel | 3 days |
| Safety & tolerability measures: heart rate, blood pressure, ECG, safety laboratory tests, lung function | 3 days |
| Plasma concentrations of GW870086X and derived pharmacokinetic parameters | 3 days |
| Cortsiol urine concentrations | 3 days |
| Osteocalcin serum concentrations | 3 days |
| Plasma concentrations of GW870086X and GW870086X pharmacokinetic parameters (including AUC, Cmax, t1/2 and tmax). | 3 days |
Countries
Australia