Pulmonary Disease, Chronic Obstructive
Conditions
Keywords
total radioactivity, [14C]-GSK961081, Pharmacokinetics, Chronic Obstructive Pulmonary Disease (COPD), Microtracer
Brief summary
Batefenterol (GSK961081) is a bifunctional bronchodilator that is being developed for the treatment of Chronic Obstructive Pulmonary Disease (COPD). Absorption, metabolism and excretion of batefenterol have been studied in animals, in vitro, and in previous clinical studies; however, the elimination routes and metabolic pathways of batefenterol have not been fully elucidated in humans. This is an open-label, single centre, non-randomised, 2-period single-sequence crossover, mass balance study to determine total radioactivity (drug related material) in plasma, the rate and extent of excretion of total radioactivity in urine and faeces and the total recovery of radioactivity of \[14C\] GSK961081 administered as a single IV dose (concomitant with an inhaled non-radiolabelled dose) and a single oral dose, in healthy male subjects. A total of 6 healthy male subjects will be enrolled. The duration of each subject in the study is up to 11 weeks, which consists of a screening visit, 2 Treatment Periods, and a follow up visit.
Interventions
DRUG[14C]-GSK961081 solution for IV infusion
Subjects will receive 10 mL of solution equivalent to 4 mcg of \[14C\]-GSK961081 (approximately 6.2 kilobecquerel \[kBq\]) intravenously as a single dose over 1 hour.
DRUG[14C]-GSK961081 oral solution
Subjects will receive 10 mL of solution equivalent to 200 mcg of \[14C\]-GSK961081 (approximately 311 kBq) orally as a single dose with up to 250 mL of water.
DRUGGSK961081 dry powder for inhalation
Subjects will receive single dose of 4 actuations of 300 mcg GSK961081 per actuation (1200 mcg GSK961081 total) as inhalation immediately after the start of infusion.
Sponsors
Hammersmith Medicines Research
GlaxoSmithKline
Theravance Biopharma
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
MALE
Age
30 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
* Between 30 and 55 years of age inclusive, at the time of signing the informed consent. * Healthy as determined by the investigator or medically qualified designee based on a medical evaluation including medical history, physical examination, vital signs, laboratory tests, and cardiac monitoring. A subject with a clinical abnormality or laboratory parameter(s) which is/are not specifically listed in the inclusion or
Exclusion criteria
, outside the reference range for the population being studied may be included only if the investigator agrees and documents that the finding is unlikely to introduce additional risk factors and will not interfere with the study procedures. * A history of regular bowel movements (averaging one or more bowel movements per day). * Body weight \>=50 kilograms (kg) and body mass index (BMI) within the range 19.0-31.0 kg/square metre (m\^2) (inclusive) * Sex: Male * Subjects with female partners of child bearing potential must use a condom from the time of first dose of study medication until follow-up. * Capable of giving signed informed consent as described in protocol which includes compliance with the requirements and restrictions listed in the consent form.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| AUC(0 inf) of total drug-related material (radioactivity) in plasma after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25 , 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | The following PK parameter will be measured: Area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC\[0 inf\]) |
| AUC(0-t) of total drug-related material (radioactivity) in plasma after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | The following PK parameter will be measured: Area under the concentration-time curve from time zero (pre-dose) to last time of quantifiable concentration (AUC\[0-t\]). |
| Cmax of total drug-related material (radioactivity) in plasma after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | The following PK parameter will be measured: maximum observed plasma concentration (Cmax) |
| Tmax of total drug-related material (radioactivity) in plasma after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | The following PK parameter will be measured: time of occurrence of Cmax (Tmax) |
| T1/2 of total drug-related material (radioactivity) in plasma after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | The following PK parameter will be measured: terminal phase half-life (t1/2) |
| Volume of total radioactivity (drug related material) after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Clearance of total radioactivity (drug related material) after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Urinary and faecal cumulative excretion as a percentage of the total radioactive dose administered over time after a single IV microtracer of [14C] GSK961081 (concomitant with an inhaled non-radiolabelled dose) and a single oral dose of [14C] GSK961081 | Pre-dose and at 0-24, 24-48, 48-72, 72-96, 96-120, 120-144, 144-168 hours post-dose during Treatment Period 1 and 2 | — |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of subjects with any adverse events (AEs) as a measure of safety | Up to 7 weeks | An AE is any untoward medical occurrence in a subject or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. |
| Composite of Hematology parameters as a measure of safety | Up to 11 weeks | The following hematology parameters will be measured: Platelet Count, red blood cell (RBC) count, Hemoglobin, Hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), white blood cell (WBC) count, Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils |
| Composite of Clinical Chemistry parameters as a measure of safety | Up to 11 weeks | The following clinical chemistry parameters will be measured: Urea, Creatinine, Glucose (fasting), Uric acid, Potassium, Sodium, Calcium, Chloride, phosphate, Aspartate aminotransferase (AST), Alanine aminotransferase (ALT), Alkaline phosphatase, Gamma-glutamyl transferase (GGT), Cholesterol, Triglycerides, Total Bilirubin, Total Protein, Albumin, and Globulin. |
| Composite of Urinalysis parameters as a measure of safety | Up to 11 weeks | The following urinalysis parameters will be measured by dip stick method: Protein, Blood, Ketones, glucose, bilirubin, urobilinogen, leukocyte esterase, specific gravity, nitrites, power of hydrogen (pH). If urine dipstick is abnormal for leukocyte esterase, nitrites, blood or protein, microscopic examination will be performed. |
| AUC(0-inf) of parent GSK961081 and [14C] GSK961081 in plasma after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Temperature as a measure of safety | Up to 11 weeks | — |
| Systolic and diastolic blood pressure as a measure of safety | Up to 11 weeks | — |
| Pulse rate as a measure of safety | Up to 11 weeks | — |
| Respiratory rate as a measure of safety | Up to 11 weeks | — |
| Electrocardiogram (ECG) as a measure of safety | Up to 11 weeks | 12-lead ECGs will be obtained using an ECG machine that automatically calculates the heart rate and measures PR, QRS, QT, and corrected QT using Bazett's formula (QTcB) or corrected QT using Fridericia's formula (QTcF) intervals. |
| AUC(0-t) of parent GSK961081 and [14C] GSK961081 in plasma after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Cmax of parent GSK961081 and [14C] GSK961081 in plasma after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Tmax of parent GSK961081 and [14C] GSK961081 in plasma after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| T1/2 of parent GSK961081 and [14C] GSK961081 in plasma after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose and a single oral dose of [14C] GSK961081 | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Volume of parent GSK961081 and [14C] GSK961081 after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Clearance of parent GSK961081 and [14C] GSK961081 after a single IV microtracer of [14C]-GSK961081 concomitant with an inhaled non-radiolabelled GSK961081 dose | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
| Oral and inhaled absolute bioavailability (F) | Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 168 hours post-dose during Treatment Period 1 and 2 | — |
Countries
United Kingdom
Outcome results
None listed