MedPath

Phase 2a, AMP Challenge, Dose Escalation Study to Assess the Dose Response for Topical Efficacy and Systemic Activity in Asthmatic Subjects

Registration Number
NCT02991859
Lead Sponsor
GlaxoSmithKline
Brief Summary

This is a randomized, placebo-controlled, 2-period crossover, escalating repeat dose study, aiming to investigate whether higher potency of different inhaled corticosteroid confers an improvement in the topical efficacy to systemic activity ratio in asthmatic subjects. It will compare the dose response for topical efficacy via airway responsiveness (to adenosine-5'-monophosphate \[AMP\] challenge), and the dose response for systemic activity via 24 hour plasma cortisol suppression, and thereby compare the relative therapeutic index, for the following inhaled corticosteroids: fluticasone furoate (FF), fluticasone propionate (FP) and budesonide (BUD). There will be a screening visit 4 - 42 days before the first dose of study treatment, and AMP challenge Provocative concentration 20 (PC20) of \<=80 milligrams per milliliter (mg/mL) at screening visit 2 i.e. at 4 - 14 days before the first dose of study treatment. Subjects will be randomized to one of 5 or 12 treatment sequences, and will have one or two treatment periods, each comprising 5 consecutive 7-day phases of escalating doses of either FF, FP, BUD or placebo. There will be a 25- to 42-day washout period between treatment periods. The study duration for each subject will be approximately 13 or 24 weeks including the follow-up period.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
56
Inclusion Criteria

Not provided

Read More
Exclusion Criteria
  • A history of life-threatening asthma, defined as an asthma episode that required intubation and/or was associated with hypercapnia, respiratory arrest or hypoxic seizures within the last 5 years. - Other significant pulmonary diseases to include (but not limited to) severe pneumonia within 6 months of the screening visit, pneumothorax, atelectasis, pulmonary fibrotic disease, bronchopulmonary dysplasia, chronic bronchitis, emphysema, chronic obstructive pulmonary disease, tuberculosis or other respiratory abnormalities other than asthma. - Culture-documented or suspected bacterial or viral infection of the upper or lower respiratory tract, sinus or middle ear within 4 weeks of screening that: In the opinion of the investigator, is expected to affect the subject's asthma status or the subject's ability to participate in the study. - A subject will not be eligible if he/she has clinical visual evidence of oral candidiasis at screening. - Any asthma exacerbation requiring oral corticosteroids within 12 weeks of screening or that resulted in overnight hospitalization requiring additional treatment for asthma within 6 months prior to randomization. - Use of prohibited medications including, anti-depressant drugs, and anti-asthma drugs (other than short acting inhaled beta-agonists supplied as rescue medication, oral contraceptives, non-steroidal anti-inflammatory drugs, stable doses of antihistamines, and paracetamol) for 1 week prior to screening and throughout the course of the study. Anti-histamines should be withheld 4 days prior to AMP challenge; subjects must also be able to abstain from short acting inhaled beta-agonists, for 8 hours prior to spirometry. - Subjects undergoing de-sensitization therapy - Current smokers who smoke > 20 cigarettes per week or the equivalent unit dose of other tobacco products or e-cigarettes, or smokers with a smoking history of >=10 pack years. - History of regular alcohol consumption exceeding 21 units per week for men and 14 units per week for females (1 unit =5 ounces [150 mL] of wine or 12 ounces [360 mL] of beer or 1.5 ounces [45 mL] of spirits) within 6 months of screening. - All subjects who are currently or in the last month have worked night-shifts are excluded from the study - Exposure to more than four new chemical entities within 12 months prior to the first dosing day or received an investigational product within 30 days of study start, or 5 half-lives of study drug if that is longer. - A subject has any clinically significant, uncontrolled condition or disease state that, in the opinion of the investigator, would put the safety of the subject at risk through study participation or would confound the interpretation of the study results if the condition/disease exacerbated during the study. (e.g. stroke or myocardial infarction within 3 months, uncontrolled hypertension, congestive heart failure, uncontrolled diabetes mellitus.) - Evidence of cancer or history of cancer in the past 5 years other than adequately treated basal or squamous cell carcinoma of the skin or adequately treated in situ carcinoma of the cervix. - Pregnant females as determined by positive urine HCG test at screening or by positive urine HCG test prior to dosing and lactating females. - Subjects with active or chronic infections including hepatitis B or C, human immunodeficiency virus. A positive serology at screening. - Allergies: History of severe milk protein allergy Drug Allergy defined as any adverse reaction including immediate or delayed hypersensitivity to intranasal, inhaled, or systemic corticosteroid therapy. Known or suspected sensitivity to the constituents of FF, FP or BUD (i.e., lactose or magnesium stearate etc.) Historical Allergy defined as history of drug or other allergy that, in the opinion of the investigator or GSK Medical Monitor, contraindicates their participation. - Significant abnormality in the 12-lead electrocardiogram (ECG) performed at screening. The mean of the three individual ECGs will be taken. Mean QT interval corrected for heart rate (QTc) >450 millisecond (msec) for males or QTc>470 msec for female subjects and >480 in subjects with bundle branch block. The QTc is the QT interval corrected for heart rate according to Fridericia's formula (QTcF).
Read More

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Arm CE - BUD followed by DISKUS PlaceboBudesonide (BUD) TurbuhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either BUD or DISKUS Placebo. In TP 1, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of DISKUS Placebo in first phase followed by AM and PM doses of 1 puff each DISKUS Placebo in second, third and fourth phase; and AM and PM doses of 2 puffs each of DISKUS Placebo in fifth phase. Washout period will be of 25-42 days.
Arm AC - FF followed by BUDBudesonide (BUD) TurbuhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FF or BUD. In TP 1, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD = 100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD = 400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD = 1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm BC - FP followed by BUDBudesonide (BUD) TurbuhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FP or BUD. In TP 1, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD = 400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm CA - BUD followed by FFBudesonide (BUD) TurbuhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either BUD or FF. In TP 1, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm CB - BUD followed by FPBudesonide (BUD) TurbuhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either BUD or FP. In TP 1, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD =500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm DC - ELLIPTA Placebo followed by BUDBudesonide (BUD) TurbuhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either ELLIPTA Placebo or BUD. In TP 1, subjects will receive PM dose of 1 puff of ELLIPTA Placebo in first, second and third phase followed by PM dose of 2 puffs of ELLIPTA Placebo in fourth phase and PM dose of 4 puffs of ELLIPTA Placebo in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm AB - FF followed by FPFluticasone furoate (FF) Dry Powder InhalerEach treatment period (TP) comprises of 5 consecutive 7-day dosing phases with escalating doses of either FF or FP. In TP 1, subjects will receive evening (PM) dose of 1 puff of FF 25 microgram (mcg) (Total daily dose \[TDD\] = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puff of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puff of FF 200 mcg (TDD = 800 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by morning (AM) and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm AB - FF followed by FPFluticasone propionate (FP) Dry Powder InhalerEach treatment period (TP) comprises of 5 consecutive 7-day dosing phases with escalating doses of either FF or FP. In TP 1, subjects will receive evening (PM) dose of 1 puff of FF 25 microgram (mcg) (Total daily dose \[TDD\] = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puff of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puff of FF 200 mcg (TDD = 800 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by morning (AM) and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm CB - BUD followed by FPFluticasone propionate (FP) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either BUD or FP. In TP 1, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD =500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm BA - FP followed by FFFluticasone propionate (FP) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FP or FF. In TP 1, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm AD - FF followed by ELLIPTA PlaceboFluticasone furoate (FF) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FF or ELLIPTA Placebo. In TP 1, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of ELLIPTA Placebo in first, second and third phases followed by PM dose of 2 puffs of ELLIPTA Placebo in fourth phase and PM dose of 4 puffs of ELLIPTA Placebo in fifth phase. Washout period will be of 25-42 days.
Arm BA - FP followed by FFFluticasone furoate (FF) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FP or FF. In TP 1, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm CA - BUD followed by FFFluticasone furoate (FF) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either BUD or FF. In TP 1, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm BC - FP followed by BUDFluticasone propionate (FP) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FP or BUD. In TP 1, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD = 400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm EB - DISKUS Placebo followed by FPFluticasone propionate (FP) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either DISKUS Placebo or FP. TP 1, subjects will receive PM dose of 1 puff of DISKUS Placebo in first phase followed by AM and PM doses of 1 puff each of DISKUS Placebo in second, third and fourth phase; AM and PM doses of 2 puffs each of DISKUS Placebo in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm AC - FF followed by BUDFluticasone furoate (FF) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FF or BUD. In TP 1, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD = 100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD = 400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD = 1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm AD - FF followed by ELLIPTA PlaceboPlacebo (ELLIPTA or DISKUS)Each TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FF or ELLIPTA Placebo. In TP 1, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of ELLIPTA Placebo in first, second and third phases followed by PM dose of 2 puffs of ELLIPTA Placebo in fourth phase and PM dose of 4 puffs of ELLIPTA Placebo in fifth phase. Washout period will be of 25-42 days.
Arm BE - FP followed by DISKUS PlaceboFluticasone propionate (FP) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FP or DISKUS Placebo. In TP 1, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of DISKUS Placebo in first phase followed by AM and PM doses of 1 puff each DISKUS Placebo in second, third and fourth phase; AM and PM doses of 2 puffs each of DISKUS Placebo in fifth phase. Each TP will be followed by a washout period of 25-42 days.
Arm EB - DISKUS Placebo followed by FPPlacebo (ELLIPTA or DISKUS)Each TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either DISKUS Placebo or FP. TP 1, subjects will receive PM dose of 1 puff of DISKUS Placebo in first phase followed by AM and PM doses of 1 puff each of DISKUS Placebo in second, third and fourth phase; AM and PM doses of 2 puffs each of DISKUS Placebo in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm DA - ELLIPTA Placebo followed by FFFluticasone furoate (FF) Dry Powder InhalerEach TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either ELLIPTA Placebo or FF. In TP 1, subjects will receive PM dose of 1 puff of ELLIPTA Placebo in first, second and third phase followed by PM dose of 2 puffs of ELLIPTA Placebo in fourth phase and PM dose of 4 puffs of ELLIPTA Placebo in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm DA - ELLIPTA Placebo followed by FFPlacebo (ELLIPTA or DISKUS)Each TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either ELLIPTA Placebo or FF. In TP 1, subjects will receive PM dose of 1 puff of ELLIPTA Placebo in first, second and third phase followed by PM dose of 2 puffs of ELLIPTA Placebo in fourth phase and PM dose of 4 puffs of ELLIPTA Placebo in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of FF 25 mcg (TDD = 25 mcg) in first phase followed by PM dose of 1 puff of FF 100 mcg (TDD = 100 mcg) in second phase; PM dose of 1 puff of FF 200 mcg (TDD = 200 mcg) in third phase; PM dose of 2 puffs of FF 200 mcg (TDD = 400 mcg) in fourth phase and PM dose of 4 puffs of FF 200 mcg (TDD = 800 mcg) in fifth phase. Washout period will be of 25-42 days.
Arm BE - FP followed by DISKUS PlaceboPlacebo (ELLIPTA or DISKUS)Each TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either FP or DISKUS Placebo. In TP 1, subjects will receive PM dose of 1 puff of FP 50 mcg (TDD = 50 mcg) in first phase followed by AM and PM doses of 1 puff each of FP 100 mcg (TDD = 200 mcg) in second phase; AM and PM doses of 1 puff each of FP 250 mcg (TDD = 500 mcg) in third phase; AM and PM doses of 1 puff each of FP 500 mcg (TDD = 1000 mcg) in fourth phase and AM and PM doses of 2 puffs each of FP 500 mcg (TDD = 2000 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of DISKUS Placebo in first phase followed by AM and PM doses of 1 puff each DISKUS Placebo in second, third and fourth phase; AM and PM doses of 2 puffs each of DISKUS Placebo in fifth phase. Each TP will be followed by a washout period of 25-42 days.
Arm CE - BUD followed by DISKUS PlaceboPlacebo (ELLIPTA or DISKUS)Each TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either BUD or DISKUS Placebo. In TP 1, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of DISKUS Placebo in first phase followed by AM and PM doses of 1 puff each DISKUS Placebo in second, third and fourth phase; and AM and PM doses of 2 puffs each of DISKUS Placebo in fifth phase. Washout period will be of 25-42 days.
Arm DC - ELLIPTA Placebo followed by BUDPlacebo (ELLIPTA or DISKUS)Each TP comprises of 5 consecutive 7-day dosing phases with escalating doses of either ELLIPTA Placebo or BUD. In TP 1, subjects will receive PM dose of 1 puff of ELLIPTA Placebo in first, second and third phase followed by PM dose of 2 puffs of ELLIPTA Placebo in fourth phase and PM dose of 4 puffs of ELLIPTA Placebo in fifth phase. In TP 2, subjects will receive PM dose of 1 puff of BUD 100 mcg (TDD =100 mcg) in first phase followed by AM and PM doses of 1 puff each of BUD 200 mcg (TDD =400 mcg) in second phase; AM and PM doses of 1 puff each of BUD 400 mcg (TDD = 800 mcg) in third phase; AM and PM doses of 2 puffs each of BUD 400 mcg (TDD =1600 mcg) in fourth phase and AM and PM doses of 4 puffs each of BUD 400 mcg (TDD = 3200 mcg) in fifth phase. Washout period will be of 25-42 days.
Primary Outcome Measures
NameTimeMethod
Provocative Concentration (PC) of Adenosine 5' Monophosphate (AMP) Causing a 20 Percent (%) Reduction in Forced Expiratory Volume in 1 Second (FEV1) (AMP PC20)- Dose Response Analysis12 hours post last dose on Day 7

The percentage fall in FEV1 was calculated using highest FEV1 (post saline) minus highest FEV1 (post AMP) divided by highest FEV1 (post saline)\*100 where highest FEV1 (post saline) is the highest value of two FEV1 measurements at 60 and 180 seconds after the saline control, highest FEV1 (post AMP) is the highest value of the two FEV1 measurements at 60 and 180 seconds after the dose of AMP. Results are presented treatment wise. The analysis method was a 3 parameter Emax model with log 2 transformed AMP PC20 as the outcome variable, assuming common Emax across FF, FP and BUD, and with an unstructured variance-covariance matrix. Mean and 95% Confidence Interval (CI) presented are predicted estimate.

Cortisol Suppression 0-24 Hours Weighted Mean-Dose Response AnalysisPre-dose PM dose on Day 6 to pre-dose PM dose Day 7

Blood samples for measurement of plasma cortisol were collected at given time point. The weighted means were derived by calculating the area under the curve (AUC) over the 0-24-hour period using the trapezoidal rule, and then dividing it by the actual time interval. Results are presented treatment wise. Mean and 95% CI presented are predicted estimate. The analysis method was an inhibitory exponential power-law model with log e transformed cortisol as the outcome variable, assuming 100% inhibition at highest doses.

Theraputic Index of FF12 hours post-dose on Day 7, pre-dose PM dose on Day 6 to pre-dose PM dose Day 7

Therapeutic Index was calculated by ED20 for Cortisol Suppression 0-24 Hours Weighted Mean (nanomoles per liter\[nmol/L\]) divided by Dose at which 80% of the maximum effect is reached (ED80) for AMP PC20 for FF 25 mcg, FF 100 mcg, FF 200 mcg, FF 400 mcg, FF 800 mcg. Theraputic index has been presented. Only those participants with data available at the specified time points were analyzed. The timeframe mentioned is for AMP PC20 and Cortisol suppression respectively.

Theraputic Index of BUD12 hours post-dose on Day 7, pre-dose PM dose on Day 6 to pre-dose PM dose Day 7

Therapeutic Index was calculated by ED20 for Cortisol Suppression 0-24 Hours Weighted Mean (nanomoles per liter\[nmol/L\]) divided by ED80 for AMP PC20 for BUD 100 mcg, BUD 400 mcg, BUD 800 mcg, BUD 1600 mcg, BUD 3200 mcg. Theraputic index has been presented. The timeframe mentioned is for AMP PC20 and Cortisol suppression respectively.

Theraputic Index of FP12 hours post-dose on Day 7, pre-dose PM dose on Day 6 to pre-dose PM dose Day 7

Therapeutic Index was calculated by Dose at which 20% of the maximum effect is reached (ED20) for Cortisol Suppression 0-24 Hours Weighted Mean (nanomoles per liter\[nmol/L\]) divided by ED80 for AMP PC20 for FP 50 mcg, FP 200 mcg, FP 500 mcg, FP 1000 mcg, FP 2000 mcg. Theraputic index has been presented. The timeframe mentioned is for AMP PC20 and Cortisol suppression respectively.

Secondary Outcome Measures
NameTimeMethod
PEFR as a Measure of Safety and Tolerability for FF 400 mcg in Period 1Days 22,23,24,25,26,27,28 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 400 mcg in Period 2Days 22,23,24,25,26,27,28 PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability of Placebo in Period 2Day 2 to 8 PM, Day 9 to 14 AM and PM, Day 15 PM, Day 16 to 21 AM and PM, Day 22 PM,Day 23 to 28 AM and PM, Day 29 PM,Day 30 to 35 AM and PM in Period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Participants recorded their PEFR measurement before each dose in a paper diary. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 25 mcg in Period 1Day 2,3,4,5,6,7 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 200 mcg in Period 1Day 15,16,17,18,19,20,21 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FP 50 mcg in Period 1Day 2,3,4,5,6,7 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 25 mcg in Period 2Day 2,3,4,5,6,7 PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FP 50 mcg in Period 2Day 2,3,4,5,6,7 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FP 200 mcg in Period 1Days 8,9,1,0,11,12,13,14 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for FP 1000 mcg in Period 2Day 22 PM, Day 23,24,25,26,27,28 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for FP 2000 mcg in Period 1Day 29 PM, Day 30,31,32,33,34,35 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 100 mcg in Period 2Day 2,3,4,5,6,7 PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 3200 mcg in Period 1Day 29 PM, Day 30, 31,32,33,34,35 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Number of Participants With Abnormal Physical ExaminationUp to Week 18

Physical examinations included assessment of the cardiovascular, respiratory, gastrointestinal, skin, abdomen (liver and spleen), and neurological systems. This analysis was planned and data was not collected and captured in the database. Results are presented treatment wise.

Number of Participants With Any Adverse Event (AE) and Any Serious Adverse Event (SAE)Up to Week 18

An AE is any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. SAE is any untoward medical occurrence that at any dose results in death, Is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability of Placebo in Period 1Day 2 to 8 PM, Day 9 to 14 AM and PM, Day 15 PM, Day 16 to 21 AM and PM, Day 22 PM,Day 23 to 28 AM and PM, Day 29 PM,Day 30 to 35 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Participants recorded their PEFR measurement before each dose in a paper diary. Results are presented treatment wise.Only those participants with data available at the indicated time points were analyzed (represented by n=X in the category titles).

PEFR as a Measure of Safety and Tolerability for FF 100 mcg in Period 1Day 8,9,10,11,12,13,14 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 100 mcg in Period 2Day 8,9,10,11,12,13,14 PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 200 mcg in Period 2Day 15,16,17,18,19,20 PM, Day 21 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 800 mcg in Period 1Days 29,30,31,32,33,34,35 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FF 800 mcg in Period 2Day 29,30,31,32,33,34,35 PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

PEFR as a Measure of Safety and Tolerability for FP 200 mcg in Period 2Day 8,9,1,0,11,12,13,14 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for FP 1000 mcg in Period 1Day 22 PM, Day 23,24,25,26,27,28,29,30,31,32,33,34,35 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise. One participant who was supposed to receive FP 1000 mg during day 22-28 and FP 2000 mg during day 28-35 but this participant continued the 3rd escalation phase dose (FP 500 mg) in fourth escalation phase and took FP 1000 mg (4th phase dose) in the fifth escalation phase (days 28-35).

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for FP 500 mcg in Period 1Day 15 PM, Day 16,17,18,19,20,21,22,23,24,25,26,27,28 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise. One participant who was supposed to receive FP 1000 mg during day 22-28 and FP 2000 mg during day 28-35 but this participant continued the 3rd escalation phase dose (FP 500 mg) in fourth escalation phase and took FP 1000 mg (4th phase dose) in the fifth escalation phase (days 28-35).

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for FP 500 mcg in Period 2Day 15 PM, Day 16,17,18,19,20,21 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 100 mcg in Period 1Day 2 to 6 AM and PM, Day 7 PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 400 mcg in Period 1Day 8 PM, Day 9 to 14 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 400 mcg in Period 2Day 8 PM, Day 9 to 14 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 800 mcg in Period 2Day 15 PM, Day 16, 17, 18, 19, 20, 21 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Number of Participants With Clinically Significant Abnormal Hematology ParametersUp to Week 18

Blood samples were collected for assessement of following hematology parameters: basophils, eosinophils, Erythrocyte mean corpuscular volume (MCV), hemoglobin, hematocrit, Erythrocyte mean corpuscular hemoglobin (MCH), leukocytes, lymphocytes, monocytes, platelets. Results are presented treatment wise. Only participants with clinically significant abnormal hematology data was reported.

Number of Participants With Clinically Significant Abnormal Chemistry ParametersUp to Week 18

Blood samples were collecte for assessment of following chemistry parametres:Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), albumin, alkaline phosphatase, bilirubin, calcium, creatinine, glucose, direct bilirubin, potassium, protein, sodium, urea. Results are presented treatment wise. Only participants with clinically significant abnormal chemistry data was reported.

Forced Expiratory Volume in 1 Second (FEV 1) in Period 1Day 1 (pre-dose) in Period 1

FEV1 was measured with participants in a sitting position using a calibrated spirometer in accordance with American Thoracic Society (ATS) guidelines using European Respiratory Society (ERS)guidelines for predicted values. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for FP 2000 mcg in Period 2Day 29 PM, Day 30,31,32,33,34,35 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 800 mcg in Period 1Day 15,16, 17, 18, 19, 20, 21 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 1600 mcg in Period 1Day 22 PM, Day 23,24,25,26,27,28 AM and PM in period 1

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Number of Participants With Clinically Significant Abnormal Vital Signs: Pulse RateUp to Week 18

Pulse rate was measured after participants had rested in supine position for at least 5 minutes. Results are presented treatment wise. No data collected separately for this outcome measure as any abnormal value would be recorded as an Adverse Event.

Number of Participants With Clinically Significant Abnormal Vital Signs: TemperatureUp to Week 18

Temperature was measured after participants have been rested in supine position for at least 5 minutes. Results are presented treatment wise. No data collected separately for this outcome measure as any abnormal value would be recorded as an Adverse Event.

Forced Vital Capacity (FVC) in Period 1Day 1 (pre-dose) in Period 1

FVC was measured with participants in a sitting position using a calibrated spirometer in accordance with ATS guidelines using ERS guidelines for predicted values. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 1600 mcg in Period 2Day 22 PM, Day 23,24,25,26,27,28 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Peak Expiratory Flow Rate (PEFR) as a Measure of Safety and Tolerability for BUD 3200 mcg in Period 2Day 29 PM, Day 30, 31,32,33,34,35 AM and PM in period 2

PEFR is a participant's maximum speed of expiration and was measured using a peak flow meter. Results are presented treatment wise.

Number of Participants With Clinically Significant Abnormal Vital Signs: Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)Up to Week 18

SBP and DBP were measured after participants had rested in supine position for at least 5 minutes. Results are presented treatment wise. No data collected separately for this outcome measure as any abnormal value would be recorded as an Adverse Event.

Number of Participants With Clinically Significant Abnormal Vital Signs: Respiratory RateUp to Week 18

Respiratory rate was measured after participants had rested in supine position for at least 5 minutes. Results are presented treatment wise. No data collected separately for this outcome measure as any abnormal value would be recorded as an Adverse Event.

Number of Participants With Clinically Significant Abnormal Urinalysis ParametersUp to Week 18

Urine sample were collected to assess following urine parameters: potential of hydrogen (pH), glucose, protein, blood and ketones by dipstick. Results are presented treatment wise. Only participants with clinically significant abnormal urinalysis data was reported.

Forced Expiratory Volume in 1 Second (FEV 1) in Period 2Day 1 (pre-dose) in Period 2

FEV1 was measured with participants in a sitting position using a calibrated spirometer in accordance with ATS guidelines using ERS guidelines for predicted values. Results are presented treatment wise.

Forced Vital Capacity (FVC) in Period 2Day 1 (pre-dose) in Period 2

FVC was measured with participants in a sitting position using a calibrated spirometer in accordance with ATS guidelines using ERS guidelines for predicted values. Results are presented treatment wise.

Trial Locations

Locations (1)

GSK Investigational Site

🇬🇧

Manchester, United Kingdom

© Copyright 2025. All Rights Reserved by MedPath