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Clinical Study to Evaluate the Efficacy of VR506 Using a New Inhaler for the Treatment of Asthma

This study has been completed.
Information provided by (Responsible Party):
Vectura Limited Identifier:
First received: November 11, 2011
Last updated: May 9, 2014
Last verified: May 2014
The purpose of the study is to evaluate the clinical efficacy of three doses of VR506 delivered via a new dry powder inhaler for the treatment of asthma.

Condition Intervention Phase
Drug: VR506
Drug: Placebo
Phase 2
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomised, Double-blind, Placebo-controlled, Parallel Group, Study to Evaluate the Efficacy and Safety of VR506 Inhaled From a New Inhaler in Adolescent and Adult Subjects With Asthma

Further study details as provided by Vectura Limited:

Primary Outcome Measures:
  • Morning Pre-Dose FEV(1) [ Time Frame: 12 weeks ]
    Mean change from start of treatment baseline for in clinic morning pre-dose FEV(1)

Secondary Outcome Measures:
  • To evaluate the safety and tolerability of VR506 in subjects with asthma [ Time Frame: 12 weeks ]
    Number of withdrawals due to worsening asthma and mean change in pre-dose PEF

  • To evaluate the subjects' operation and handling of the new inhaler [ Time Frame: 12 weeks ]
    Assessment of the compliance with the treatment regimen and acceptability of the device by questionnaire and operation

Enrollment: 374
Study Start Date: October 2011
Study Completion Date: May 2013
Primary Completion Date: May 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo Drug: Placebo
Placebo delivered via a new dry powder inhaler
Active Comparator: Dose 1 Drug: VR506
VR506 inhalation powder delivered via a new dry powder inhaler
Active Comparator: Dose 2 Drug: VR506
VR506 inhalation powder delivered via a new dry powder inhaler
Active Comparator: Dose 3 Drug: VR506
VR506 inhalation powder delivered via a new dry powder inhaler


Ages Eligible for Study:   12 Years to 65 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Written informed consent
  • Adolescents aged 12 to 17 years (inclusive) and adults aged 18 to 65 years (inclusive)
  • Documented clinical history of asthma (i.e. made by a physician) for at least 6 months before the Screening Visit
  • Documented asthma reversibility in the 5 years prior to or during Screening, or if the asthma reversibility criterion is not met at Screening, then a repeat test may be carried out at the end of the Run-In Period
  • Subjects with asthma who, in the opinion of the investigator, require maintenance therapy with ICS, are believed to have been regularly compliant with this therapy, and are therefore likely to deteriorate within 6 weeks following withdrawal of their usual ICS treatment
  • Mild or moderate asthma, defined as:

    • Mild - good asthma control achieved by low-dose inhaled corticosteroid (daily dose 200-500 μg beclomethasone dipropionate or equivalent) with or without other low-intensity treatment (e.g. leukotriene modifiers or cromones) for at least 28 days before the Screening Visit
    • Moderate - good asthma control achieved by low- to moderate-dose ICS (daily dose 200-1000 μg beclomethasone dipropionate or equivalent), and long acting β2-agonist (LABA) or other extra treatment, for at least 28 days before the Screening Visit
  • Ability to use the new inhaler correctly, based on investigator's review of the completed inhaler operation checklist
  • Ability to use the eDiary correctly, assessed by the investigator during the Screening Period
  • Ability to perform technically satisfactory pulmonary function tests
  • Ability to comply with study procedures, including blood sampling
  • Body mass index (BMI) of 16.0 to 26.0 kg/m2 in adolescents, and in adult subjects recruited in the Philippines, and 18.0 to 32.0 kg/m2 in adults recruited in other countries
  • Available to complete all study visits
  • Oral peak inspiratory flow (PIF) of at least 60 L/min; using an appropriate device set to match the resistance of the nDPI
  • Good health, except for the presence of asthma, according to medical history and physical examination
  • Normal (i.e. non-clinically significant abnormality) 12-lead electrocardiogram (ECG)
  • Negative drug, alcohol, and urine cotinine screen; subjects must test negative for amphetamines, barbiturates, benzodiazepines, cannabinoids, cocaine, cotinine (unless related to nicotine-containing therapies), ethanol, and opiates (unless given as a prescription medicine)
  • Non-smokers or ex-smokers with a smoking history of less than 10 pack-years (e.g. <20 cigarettes per day for 10 years or 40 cigarettes per day for 5 years) and stopped smoking for at least one year prior to the Screening Visit. Smoking will not be permitted throughout the study
  • Female subjects of child-bearing potential must be using medically acceptable forms of contraception; approved forms of contraception are abstinence, hormonal (oral, implant, transdermal, or injection, in use for ≥3 consecutive months before the start of the Run-In Period), double barrier (condom with spermicide, diaphragm with spermicide), intrauterine device, or vasectomised partner (≥6 months since vasectomy)

Exclusion Criteria:

  • Regular use (≥3 times per week) of topical steroids taken to treat dermatitis, rhinitis or allergic conjunctivitis, within 28 days of the Screening Visit
  • Subjects who have or who have had an upper or lower respiratory tract infection within 28 days of the Screening Visit
  • Subjects with asthma that required admission to an intensive care unit and/or ventilation within the previous 12 months
  • History of lung cancer
  • Subjects with "brittle asthma", defined as patients with asthma who either maintain over many months a wide variation (>40%) in PEF between morning and evening measurements despite moderate to high doses of ICS, or are prone to acute, severe and often unpredictable attacks of asthma that may be fatal, on a background of apparently good asthma control
  • History or current diagnosis of human immunodeficiency virus (HIV) infection
  • Active chronic hepatitis B or C infection. If the patient's screening test is positive for hepatitis B surface antigen, the patient should be excluded unless the investigator, after a careful review of the patient's medical history and current laboratory tests of liver function, can exclude the possibility of recent or current infection
  • Persistent arterial hypotension, with average systolic blood pressure (SBP) readings of ≤95 mmHg
  • Subjects who have any clinically significant abnormality or finding from examination, tests, or history that may compromise subject safety, specifically any history of cardiac, renal or hepatic impairment
  • Subjects with an abnormal ECG
  • Persistent elevation of blood pressure, with average SBP readings of ≥160 mmHg or average diastolic blood pressure (DBP) readings of ≥100 mmHg
  • Pregnant or lactating females
  • Participation in another clinical study in the 28 days prior to the Screening Visit
  • Current or a history of drug or alcohol abuse or dependence according to World Health Organization criteria in the 12 months prior to the Screening Visit or evidence of such abuse as indicated by laboratory assays conducted during the screening evaluation
  • Evidence of clinically significant renal, hepatic, cardiac, pulmonary (apart from asthma) or metabolic dysfunction, e.g. diabetes mellitus, thyrotoxicosis, uncorrected hypokalaemia, or predisposition to low levels of serum potassium
  • Inability to communicate well with the investigator
  • Evidence of clinically significant renal, hepatic, cardiac, pulmonary (apart from asthma) or metabolic dysfunction, e.g. diabetes mellitus, thyrotoxicosis, uncorrected hypokalaemia, or predisposition to low levels of serum potassium
  • Donation of ≥450 mL of blood or blood products within the previous 12 weeks prior to the Screening Visit
  • History of allergy, intolerance or contraindications to corticosteroids, lactose, or severe allergy to milk proteins
  • Consumption of alcohol- or caffeine-containing foods or beverages from midnight before or during the Screening Visit. The visit can be rescheduled once before the subject is excluded
  • History of medically diagnosed chronic respiratory diseases (other than asthma) e.g. chronic obstructive pulmonary disease
  • Subjects with previously clinically or radiologically diagnosed osteoporosis and/or those receiving regular treatment (more than 1 month duration) with oral or parenteral corticosteroids in the last year prior to the Screening Visit
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01472757

  Show 82 Study Locations
Sponsors and Collaborators
Vectura Limited
Principal Investigator: Ronald Dahl, Dr. Aarhus University Hospital
  More Information

Responsible Party: Vectura Limited Identifier: NCT01472757     History of Changes
Other Study ID Numbers: VR506/2/002
Study First Received: November 11, 2011
Last Updated: May 9, 2014

Additional relevant MeSH terms:
Bronchial Diseases
Respiratory Tract Diseases
Lung Diseases, Obstructive
Lung Diseases
Respiratory Hypersensitivity
Hypersensitivity, Immediate
Immune System Diseases processed this record on April 28, 2017