Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomised, Double-blind, Placebo Controlled, Parallel Group, Dose Ranging Study Evaluating the Efficacy and Safety of GW642444M Administered Once Daily Compared With Placebo for 28 Days in Adolescent and Adult Subjects With Persistent Asthma
Brief Summary: This study is designed to determine if the investigational drug is effective and safe in individuals with asthma


Options:
A: INCLUSION CRITERIA:

Subjects eligible for enrolment in the study must meet all of the following criteria:

* Type of Subject: Outpatient
* Age: 12 years of age or older at Visit 1. For sites in the following countries, subjects recruited will be ≥18 years of age: Bulgaria, Czech Republic, Germany, Greece, Lithuania, New Zealand, Russian Federation, Turkey and any other countries where local regulations or the regulatory status of study medication permit enrolment of adults only.
* Gender: Male or Eligible Female
* To be eligible for entry into the study, females of childbearing potential must commit to consistent and correct use of an acceptable method of birth control, as defined by the following:
* Male partner who is sterile prior to the female subject's entry into the study and is the sole sexual partner for that female subject
* Implants of levonorgestrel
* Injectable progestogen
* Oral contraceptive (either combined estrogen/progestin or progestin only)
* Any intrauterine device (IUD) with a documented failure rate of less than 1% per year.
* Females of childbearing potential who are not sexually active must commit to complete abstinence from intercourse throughout the clinical trial and for a period after the trial to account for elimination of the drug (minimum of six days).
* Double barrier method - spermicide plus a mechanical barrier (e.g., spermicide plus a male condom or a spermicide and female diaphragm).
* NB: For German sites, female subjects must use a method of birth control other than the double barrier method.
* The contraceptive transdermal patch, Ortho Evra (if the subject is less than 198 pounds)
* Female subjects should not be enrolled if they are pregnant, lactating or plan to become pregnant during the time of study participation. A serum pregnancy test is required of all females. This test will be performed at the initial screening visit (Visit 1) and Visit 8. In addition, a urine pregnancy test will be performed on the evening of the double-blind treatment visit, prior to randomization (Visit 3) and at Visits 4 through 7.
* Asthma Diagnosis: Asthma as defined by the National Institutes of Health \[National Institutes of Health, 2007\].
* Severity of Disease: A best FEV1 of 40%-90% of the predicted normal value during Visit 1. NHANES III predicted values will be used for subjects aged ≥ 12 years and adjustments to predicted values will be made for African American subjects. \[Hankinson, 1999\].
* Reversibility of Disease: Demonstrated a ≥ 12% and ≥200mL reversibility of FEV1 within approximately 30-minutes following 4 inhalations of albuterol/salbutamol inhalation aerosol (if required, spacers are permitted for reversibility testing only) or one nebulized albuterol/salbutamol solution at the Screening Visit. If a subject fails to demonstrate an increase in FEV1 ≥12% and ≥200mL, then the subject is not eligible for the study and will not be allowed to re-screen.
* Current Anti-Asthma Therapy: Subjects must have been using a inhaled corticosteroid for at least 8 weeks prior to Visit 1 and maintained on a stable dose of inhaled corticosteroids for four weeks prior to Visit 1 at one of the following doses: \[fluticasone propionate MDI CFC/HFA \>220mcg exactuator or ≤250mcg ex valve\]; \[fluticasone propionate DPI ≤200mcg\]; \[beclomethasone dipropionate DPI ≤ 420mcg exactuator or ≤ 500mcg ex-valve\]; \[beclomethasone dipropionate HFA (Qvar) ≤ 160mcg exactuator or ≤ 200mcg ex-valve\]; \[budesonide DPI MDI ≤400mcg\]; \[flunisolide ≤ 1000mcg\]; \[triamcinolone acetonide ≤1000mcg\]; \[mometasone furoate DPI \>200mcg or ≤ 220mcg\]; \[ciclesonide MDI HFA ≤ 160mcg ex-actuator dose / ≤ 200mcg ex-valve dose\].
* Short- Acting Beta2-Agonists: All subjects must be able to replace their current short-acting beta2-agonists with albuterol/salbutamol inhalation aerosol at Visit 1 for use as needed for the duration of the study. The use of spacer devices with metered dose inhaler (MDI) or nebulized albuterol/salbutamol will not be allowed during the study with the exception of their use during reversibility testing at Visit 1. Subjects must be able to withhold all inhaled short-acting beta sympathomimetic bronchodilators for at least 6 hours prior to all study visits.
* Informed Consent: All subjects must be able and willing to give written informed consent to take part in the study.
* Compliance: Subjects must be able to comply with completion of the Daily Diary (includes paper medical conditions diary).
* French subjects: In France, a subject will be eligible for inclusion in this study only if either affiliated to or a beneficiary of a social security category.

Inclusion Criteria for Randomization

At the end of the run-in period, a subject will be eligible to enter the treatment period of the study if he/she meets the following criteria at Visit 3:

1. Evening pre-dose percent predicted FEV1 of between 40% and 90% of their predicted normal.
2. Any combination of the daily asthma symptom scores (day-time plus night-time) of ≥1 or albuterol/salbutamol use on at least 4 of the last 7 consecutive days of the run-in period (immediately preceding Visit 3).

EXCLUSION CRITERIA:

* History of Life-threatening asthma: Defined for this protocol as an asthma episode that required intubation and/or was associated with hypercapnia, respiratory arrest or hypoxic seizures.
* Respiratory Infection: Culture-documented or suspected bacterial or viral infection of the upper or lower respiratory tract, sinus or middle ear that is not resolved within 4 weeks of Visit 1 and led to a change in asthma management, or in the opinion of the Investigator is expected to affect the subjects asthma status or the subjects ability to participate in the study.
* Asthma Exacerbation: Any asthma exacerbation requiring oral corticosteroids within 3 months of Visit 1. A subject must not have had any hospitalization for asthma within 6 months prior to Visit 1.
* Concurrent Diseases/Abnormalities: Historical or current evidence of clinically significant uncontrolled disease including, but not limited to: cardiovascular disease, hepatic disease, renal disease, hematological disease, neurological disease, or pulmonary disease (including, but not confined to chronic bronchitis, emphysema, bronchiectasis with the need of treatment, cystic fibrosis, bronchopulmonary dysplasia, and chronic obstructive pulmonary disease). Significant is defined as any disease that, in the opinion of the investigator, would put the safety of the subject at risk through participation, or which would affect the efficacy or safety analysis if the disease/condition exacerbated during the study. The list of additional excluded conditions/diseases includes, but is not limited to the following: congestive heart failure, clinically significant coronary artery disease, stroke within 3 months of Visit 1, poorly controlled peptic ulcer, immunologic compromise, tuberculosis (current or untreated), Addison's disease, uncontrolled thyroid disorder, known aortic aneurysm, clinically significant cardiac arrhythmia, uncontrolled hypertension, hematological, hepatic, or renal disease, current malignancy, cushings disease, uncontrolled diabetes mellitus, recent history of drug or alcohol abuse.
* Oropharyngeal Examination: A subject will not be eligible for the run-in if he/she has clinical visual evidence of oral candidiasis at Visit 1.
* Investigational Medications: A subject must not have participated in a study or used any investigational drug within 30 days prior to Visit 1.
* Drug Allergy: Any adverse reaction including immediate or delayed hypersensitivity to any beta2-agonist, sympathomimetic drug, or any intranasal, inhaled, or systemic corticosteroid therapy. Known or suspected sensitivity to the constituents of the novel dry powder inhaler or DISKUS/ACCUHALER (i.e., lactose or magnesium stearate).
* Milk Protein Allergy: History of severe milk protein allergy.
* Immunosuppressive Medications: A subject must not be using, or require use, of immunosuppressive medications during the study.

NOTE: Immunotherapy for the treatment of allergies is allowed during the study provided that the treatment was initiated prior to Visit 1 and the subject is maintained on a stable regimen throughout the study period.

* Attendance: A subject will not be eligible if he/she or his/her parent or legal guardian has any infirmity, disability, or geographical location which seems likely (in the opinion of the Investigator) to impair compliance with any aspect of this study protocol or scheduled visits to the study center and non-compliant with study medication or procedures (e.g. completion of daily diary). Neurological or psychiatric disease or history of drug or alcohol abuse which in the opinion of the investigator could interfere with the subject's proper completion of the protocol requirements excludes study participation.
* Tobacco Use : Current smoker or a smoking history of 10 pack years or more (e.g. 20 cigarettes/day for 10 years). A subject may not have used tobacco products within the past one year (i.e., cigarettes, cigars, or pipe tobacco).
* Affiliation with Investigator's Site: A subject will not be eligible for this study if he/she is an immediate family member of the participating Investigator, sub-Investigator, study coordinator, or employee of the participating Investigator.
* Corticosteroid Use: Administration of systemic, oral or depot corticosteroids within 12 weeks of Visit 1.
* Potent Cytochrome P450 3A4 (CYP3A4) inhibitors: Patients who are receiving potent CYP3A4 inhibitors within 4 weeks of Visit 1 (e.g., ritonavir, ketoconazole, itraconazole).

Exclusion Criteria for Randomization At the end of the run-in period, a subject will not be eligible to enter the treatment period of the study if they meet any of the following criteria.

1. Clinical Laboratory Abnormalities: Clinically significant abnormal laboratory tests during Visit 1 which are still abnormal upon repeat analysis and are not believed to be due to disease(s) present. Each Investigator will use his/her own discretion in determining the clinical significance of the abnormality. When in doubt, GlaxoSmithKline, or designee, should be notified so that a joint decision can be made.
2. Changes in asthma medication (excluding albuterol/salbutamol inhalation aerosol provided at Visit 1).
3. Occurrence of a culture-documented or suspected bacterial or viral infection of the upper or lower respiratory tract, sinus or middle ear during the run-in period that led to a change in asthma management, or in the opinion of the Investigator is expected to affect the subjects asthma status or the subjects ability to participate in the study.
4. Asthma exacerbation, defined as any worsening of asthma requiring any treatment other than rescue albuterol/salbutamol or regular inhaled corticosteroid use. This includes requiring the use of systemic corticosteroids and / or emergency room visit or hospitalization or a change in subject's regular inhaled corticosteroid dose.
5. A subject will not be eligible for randomization if he/she has an abnormal visual oropharyngeal exam at the randomization Visit 3 (visual clinical evidence of oral candidiasis).
6. Non-compliance with completion of the Daily Diary, defined as: -Completion of AM and PM symptom scores on less than 4 days out of the last 7 days immediately preceding Visit 3.

   * Completion of AM and PM rescue use on less than 4 days out of the last 7 days immediately preceding Visit 3.
   * Completion of AM and PM PEF measurements on less than 4 days out of the last 7 days immediately preceding Visit 3.
   * Recording run-in asthma medication use on less than 4 days out of the last 7 days immediately preceding Visit 3.
B: Inclusion criteria:

* Type of Subject: Outpatient
* Age: 12 years of age or older at Visit 1 (or ³18 years of age or older if local regulations or the regulatory status of study medication permit enrollment of adults only).
* Gender: Male or eligible female - Females are eligible to participate only if they are currently non-pregnant and non-lactating. To be eligible for entry into the study, females of childbearing potential must commit to consistent and correct use of an acceptable method of birth control, as defined by the following: Male partner who is sterile prior to the female subject's entry into the study and is the sole sexual partner for that female subject, Implants of levonorgestrel, Injectable progestogen, Oral contraceptive (either combined estrogen/progestin or progestin only), Any intrauterine device (IUD) with a documented failure rate of less than 1% per year, Double-barrier method - spermicide plus a mechanical barrier (e.g., spermicide plus a male condom or a spermicide and female diaphragm), The contraceptive transdermal patch, Ortho Evra (if the subject is less than 198 pounds), Female subjects should not be enrolled if they plan to become pregnant during the time of study participation. A urine pregnancy test is required for all subjects at all visits, Female subjects should not be enrolled if they plan to become pregnant during the time of study participation. A urine pregnancy test is required for all subjects at all visits, Female subjects should not be enrolled if they plan to become pregnant during the time of study participation. A urine pregnancy test is required for all subjects at all visits, Females of childbearing potential who are not sexually active must commit to complete abstinence from intercourse throughout the clinical trial, and for a period after the trial to account for elimination of the drug (minimum of six days),
* Asthma Diagnosis: Asthma as defined by the National Institutes of Health \[National Institutes of Health, 2002; GINA, 2005\].
* Severity of Disease: A best AM FEV1 of 50% to 80% of the predicted value during Visit 1 based on the "Standardization of Lung Function Tests" \[European Respiratory Society, 1993\] standards for 18 years and older or Polgar \[Polgar, 1971\] standards for 12 to 17 years and race adjusted for African-Americans \[American Thoracic Society, 1991\].
* Reversibility of Disease: Demonstrated ³12% and 200mL reversibility of FEV1 within 30 minutes following 200 to 400mcg of albuterol/salbutamol inhalation aerosol (or one nebulized albuterol/salbutamol treatment) at Visit 1. If a subject fails to demonstrate an increase in FEV1 of ³12% and 200mL, the subject is not eligible for the study and will not be allowed to re-screen.
* Concurrent Anti-Asthma Therapy: Subjects must be using an inhaled corticosteroid for at least 3 months prior to Visit 1 and be maintained on a stable dose for four weeks prior to Visit 1 at one of the following doses: Anti-Asthma Therapy Maximum Daily Dose (mcg/day) Fluticasone propionate MDI CFC/HFA ≤220mcg1/≥250mcg2 Fluticasone propionate DPI 200mcg Beclomethasone dipropionate 420mcg1/500mcg2 Beclomethasone dipropionate HFA 160mcg1/200mcg2 Budesonide DPI 400mcg Flunisolide 1000mcg Triamcinolone acetonide 1000mcg Mometasone furoate 200mcg Ciclesonide 160mcg1/200mcg2

  1. Ex-actuator dose: dose delivered to the lungs
  2. Ex-valve dose: dose expressed from the valve
* Short-Acting Beta2-Agonist: All subjects must be able to replace short-acting beta2-agonists with albuterol/salbutamol inhalation aerosol at Visit 1 for use as-needed for the duration of the study. Subjects must be able to withhold all inhaled short-acting beta-sympathomimetic bronchodilators for at least 6 hours prior to study visits.Note: Nebulized albuterol/salbutamol will not be allowed during the study with the exception of its use during reversibility testing at Visit 1. The use of albuterol/salbutamol through the DISKUS/ACCUHALER device will not be allowed during the study.
* Informed Consent: All subjects must be able and willing to give written informed consent to take part in the study.
* Compliance: Subjects must be able to comply with all the study requirements.

Exclusion criteria:

* History of Life-Threatening Asthma: History of life-threatening asthma, defined as an asthma episode that required intubation and/or was associated with hypercapnia, respiratory arrest or hypoxic seizures.
* Anti-Asthma Medications: Asthma medications listed below must not have been used prior to Visit 1 for the required interval listed below, and not taken during the study: Within 24 hours of Visit 1: Oral short-acting beta2-agonists: Within 2 weeks of Visit 1:Combination therapy containing inhaled beta2-agonists and ICS for asthma (e.g., fluticasone propionate/salmeterol combination, budesonide/formoterol combination);Slow-release bronchodilators (e.g., aminophylline, theophylline);Anticholinergics; Long-acting beta2-agonists (e.g., salmeterol); Ketotifen; Nedocromil sodium; Sodium cromoglycate; Oral long-acting beta2-agonists. Within 4 weeks of Visit 1: Anti-leukotrienes including suppressors of leukotriene production and antagonists. Within 12 weeks of Visit 1: Systemic, oral, parenteral, or depot corticosteroids; Anti-IgE (e.g., omalizumab).
* Other Medications: The medications listed below must not have been used prior to Visit 1 for the required interval indicated below, and not taken during the study: Within 4 weeks of Visit 1: Known potent inhibitors of CYP3A4 (e.g., ritonavir, ketoconazole)
* Respiratory Infection: History of a respiratory tract infection within 4 weeks of Visit 1. In addition, the subject must be excluded, if such infection occurs between Visits 1 and 2.
* Asthma Exacerbation: History of a an asthma exacerbation within 4 weeks of Visit 1, any asthma exacerbation requiring oral corticosteroids within 3 months of Visit 1, or any hospitalization due to asthma exacerbation within 6 months of Visit 1.
* Investigational Medications: A subject must not have used any investigational drug within 30 days prior to Visit 1 or within ten half-lives (t1/2) of the prior investigational study (which ever is longer of the two) or concurrently during the study.
* Concurrent Diseases/Abnormalities: Historical or current evidence of clinically significant uncontrolled disease including, but not limited to: cardiovascular disease, malignancy, hepatic disease, renal disease, hematological disease, neurological disease, or pulmonary disease (including, but not confined to chronic bronchitis, emphysema, bronchiectasis with the need of treatment, cystic fibrosis, bronchopulmonary dysplasia, and chronic obstructive pulmonary disease). Significant is defined as any disease that, in the opinion of the investigator, would put the safety of the subject at risk through participation, or which would affect the efficacy or safety analysis if the disease/condition exacerbated during the study.
* Oropharyngeal Examination: A subject will not be eligible for the run-in if he/she has evidence of oropharyngeal candidiasis at Visit 1.
* Drug Allergy: Any adverse reaction including immediate or delayed hypersensitivity to any beta2-agonist, sympathomimetic drug, or any intranasal, inhaled, or systemic corticosteroid therapy.
* Milk Protein Allergy: History of severe milk protein allergy.
* Immunosuppressive Medications: A subject must not be using, or require use of, immunosuppressive medications during the study.

Note: Immunotherapy for the treatment of allergies is allowed during the study provided that it was initiated prior to Visit 1 and the subject is maintained on a stable daily dose throughout the study period.

* Attendance: A subject will not be eligible if he/she or his/her parent or legal guardian has any infirmity, disability, or geographical location which seems likely (in the opinion of the Investigator) to impair compliance with any aspect of this study protocol or scheduled visits to the study center and compliance with study medication or procedures (e.g., completion of daily diary). Neurological or psychiatric disease or history of drug or alcohol abuse which would interfere with the subject's proper completion of the protocol requirements excludes study participation.
* Tobacco Use: A subject may not have used tobacco products within the past one year (i.e., cigarettes, cigars, or pipe tobacco) and must not have historical use of \>10 pack years (e.g., 20 cigarettes/day for 10 years).
* Affiliation with Investigator's Site: A subject will not be eligible for this study if he/she is an immediate family member of the participating investigator, sub-investigator, study coordinator, or employee of the participating investigator.
C: Inclusion criteria:

* Aged 12 years of age or older at Visit 1 For sites in the following countries, subjects recruited will be ³ 18 years of age: Germany, Hungary and the Russian Federation and any other countries where local regulations or the regulatory status of study medication permit enrolment of adults only.
* Male or eligible female subjects

A female is eligible to enter and participate in the study if she is of:

Non-child bearing potential (i.e. physiologically incapable of becoming pregnant), including any female who is post-menopausal.

Child bearing potential, has a negative pregnancy test at screening, and agrees to one of the following acceptable contraceptive methods used consistently and correctly (i.e. in accordance with the approved product label and the instructions of the physician for the duration of the study - screening to follow-up contact):

* Complete abstinence from intercourse from screening until 2 weeks after the follow-up contact; or
* Sterilisation of male partner (vasectomy with documentation of azoospermia) prior to female subject entry into the study, and this male partner is the sole partner for that subject; or
* Implants of levonorgestral inserted for at least 1 month prior to the study medication administration but not beyond the third successive year following insertion; or
* Injectable progestogen administered for at least 1 month prior to study medication administration and administered for 1 month following study completion; or
* Oral contraceptive (combined or progestogen only) administered for at least one monthly cycle prior to study medication administration; or
* Double barrier method: condom or occlusive cap (diaphragm or cervical/vault caps) plus spermicidal agent (foam/gel/film/cream/suppository) N.B. For German sites female subjects must use a method of birth control other than the double barrier method
* An intrauterine device (IUD), inserted by a qualified physician, with published data showing that the highest expected failure rate is less than 1% per year; or
* Estrogenic vaginal ring inserted for at least 1 month prior to study medication administration; or
* Percutaneous contraceptive patches in place for at least 1 month prior to study medication administration Female subjects should not be enrolled if they are pregnant, or lactating, or plan to become pregnant during the time of study participation.
* Documented clinical history of persistent asthma, as defined by the National Institutes of Health \[NIH, 2007\] first diagnosed at least 6 months prior to Visit 1.
* Subjects with current reversible airways disease as demonstrated at Visit 1 by an increase in FEV1 of ≥ 12% and ≥ 200ml over the pre-salbutamol/albuterol FEV1 at approximately 30 minutes after the inhalation of 400mcg of salbutamol/albuterol via MDI (spacer permitted for reversibility testing only if required) or one nebulised salbutamol/albuterol solution.
* Subjects must be using an inhaled corticosteroid and have been maintained on a stable dose for 4 weeks prior to Visit 1 at one of the following doses:

Maximum Allowable Concurrent Inhaled Corticosteroid Doses

Asthma Therapy(Maximum Daily Dose (mcg/day)) fluticasone propionate MDI CFC/HFA (≤ 880mcg1/ ≤1000mcg2) fluticasone propionate DPI(≤ 1000mcg) beclomethasone dipropionate(≤ 1680mcg1/ ≤ 2000mcg2) beclomethasone dipropionate HFA (QVAR)(≤ 640mcg1/ ≤ 800mcg2) budesonide DPI/MDI(≤ 2000mcg) Flunisolide(≤ 2000mcg) triamcinolone acetonide(≤ 2000mcg) mometasone furoate(≤ 880mcg) Ciclesonide(≤ 320mcg1/ ≤ 400mcg2)

CFC=chlorofluorocarbon HFA=hydrofluoroalkane

1. Ex-actuator dose
2. Ex-valve dose

   * Pre-bronchodilator FEV1 between ≥ 40 - ≤ 90% predicted at Visit 1. NHANES III predicted values will be used for subjects aged ≥ 12 years and adjustments to predicted values will be made for African American subjects \[Hankinson, 1999\].
   * Appropriately signed and dated informed consent has been obtained.
   * Capable of withholding salbutamol/albuterol use for ≥ 6 hours prior to clinic visits.
   * In France, a subject will be eligible for inclusion in this study only if either affiliated to or a beneficiary of a social security category.

Exclusion criteria:

* An exacerbation of asthma within 4 weeks of Visit 1, or a culture documented or suspected bacterial or viral infection of the upper or lower respiratory tract, sinus or middle ear within 4 weeks of Visit 1 that led to a change in asthma management, or in the opinion of the Investigator is expected to affect the subjects asthma status or the subjects ability to participate in the study.
* History of life-threatening asthma, defined as an asthma episode that required intubation and/or was associated with hypercapnoea, respiratory arrest or hypoxia seizures.
* Asthma exacerbation requiring treatment with oral corticosteroids within 3 months prior to Visit 1.
* Hospitalised for an asthma exacerbation within 6 months of Visit 1. Hospitalisation is defined as an overnight stay in a hospital.
* Previously enrolled in this study, or has participated in any study using an investigational drug during the previous 30 days or will participate simultaneously in another clinical trial.
* A subject must not have any clinically significant, uncontrolled condition or disease state that, in the opinion of the investigator, would put the subject's safety at risk through study participation or would confound the interpretation of the efficacy results if the condition/disease exacerbated during the study.

The list of additional excluded conditions/diseases includes, but is not limited to the following:

congestive heart failure, known aortic aneurysm clinically significant coronary heart disease, clinically significant cardiac arrhythmia stroke within 3 months of Visit 1, uncontrolled hypertension1 poorly controlled peptic ulcer, haematologic, hepatic, or renal disease immunologic compromise, current malignancy2 tuberculosis (current or untreated3), Cushing's disease Addison's disease, uncontrolled diabetes mellitus uncontrolled thyroid disorder, recent history of drug or alcohol abuse neurological disease, pulmonary disease4

1. systolic blood pressure 160, or diastolic blood pressure \>100
2. history of malignancy is acceptable only if subject has been in remission for one year prior to Visit 1 (remission = no current evidence of malignancy and no treatment for the malignancy in the 12 months prior to Visit 1)
3. Subjects with a history of tuberculosis who have received an approved prophylactic treatment regimen or an approved active treatment regimen and who have no evidence of active disease for a minimum of 2 years may be enrolled \[American Thoracic Society Documents, 2005\] \[American Thoracic Society (ATS), 2003\]
4. Including but not limited to chronic bronchitis, emphysema, bronchiectasis with the need of treatment, cystic fibrosis, bronchopulmonary dysplasia, and chronic obstructive pulmonary disease.

   * Any adverse reaction including immediate or delayed hypersensitivity to any ß2-agonist or sympathomimetic drug, or known (i.e., patients with a history of severe milk protein allergy) or suspected sensitivity to the constituents of GW642444M inhalation powder (e.g., lactose or magnesium stearate).
   * Subjects who are likely to be non-compliant with study medication and other study-related requirements (e.g. attendance at clinic visits or completion of Daily Diary).
   * Neurological or psychiatric disease or history of drug or alcohol abuse which would interfere with the subject's proper completion of the protocol requirements.

Abuse of alcohol is defined as an average weekly intake of greater than 21 units or an average daily intake of greater than 3 units (males) or defined as an average weekly intake of greater than 14 units or an average daily intake of greater than 2 units (females). The number of units of alcohol in a drink can be determined by multiplying the volume of the drink (in millilitres) by its percentage ABV and dividing by 1000

* Current smoker or a smoking history of 10 pack years or more (e.g. 20 cigarettes/day for 10 years). A subject may not have used tobacco products within the past one year (i.e., cigarettes, cigars, or pipe tobacco).
* Administration of systemic, oral or depot corticosteroids or administration of anti-IgE (e.g. omalizumab \[Xolair\]) within 12 weeks of Visit 1.
* Administration of the following asthma medications within 14 days of Visit 1:
* Theophyllines
* Oral β2-agonists (e.g. bambuterol)
* Slow-release bronchodilators
* Anticholinergics - short or long-acting
* Oral long acting antihistamines
* Oral leukotriene receptor antagonists (e.g. montelukast)
D: Inclusion Criteria:

* Body mass index within the range 18.5-35.0 kilograms/metre2 (kg/m2).
* Females of non-child bearing potential.
* Documented history of bronchial asthma, first diagnosed at least 6 months prior to the screening visit and currently being treated only with intermittent short-acting beta -agonist therapy by inhalation
* Pre-bronchodilator FEV1 \>70% of predicted at screening
* Subjects who are current non-smokers
* Methacholine challenge PC20 \< 8 mg/mL at screening
* Screening allergen challenge demonstrates that the subject experiences an early asthmatic response

Exclusion Criteria:

* Current or chronic history of liver disease, or known hepatic or biliary abnormalities
* Subject is hypertensive at screening
* Respiratory tract infection and/or exacerbation of asthma within 4 weeks prior to the first dose of study medication.
* History of life-threatening asthma
* Symptomatic with hay fever at screening or predicted to have symptomatic hayfever
* Unable to abstain from short acting beta agonists
* Unable to abstain from antihistamines
* Unable to abstain from other medications including non-steroidal anti-inflammatory drugs (NSAIDs), anti-depressant drugs, anti-asthma anti-rhinitis or hay fever medication
* The subject has participated in a study with a new molecular entity during the previous 3 months or has participated in 4 or more clinical studies in the previous 12 months
* undergoing allergen desensitisation therapy

Answer: C