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AsthmaPhase 4NCT00385359

A Pilot Efficacy Study of Inhaled Albuterol Delivered With Akita Breath Control

A Phase 4 study testing aerosol drug deposition strategies and Albuterol in people with Asthma, run by University Health Network, Toronto at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Albuterol (salbutamol) is a widely used asthma medication but is associated with undesirable side effects such as shakiness and increased heart rate. Targeted delivery of albuterol to area of lungs where it has most effect would require a lower total dose to produce the same beneficial effects while reducing the side… Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Asthma
What is being tested?
aerosol drug deposition strategies and Albuterol
Type of treatment
Surgery or procedure
How many people
10 participants
Where
1 siteCanada
Study dates
Oct 2006to not given
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Male or female aged 18-60 years
  • Moderate asthma with baseline FEV1 40-75% predicted
  • Previous use of albuterol (salbutamol)
  • At least 20% improvement in FEV1 following 2.5 mg albuterol (salbutamol) delivered by nebulizer
  • O2 saturation > 90%
  • Non-smoker for > 6 months

Who cannot join

  • Upper respiratory tract infection or asthma exacerbation within 14 days of screening
  • Clinically significant abnormal chest radiograph
  • History of cardiovascular disorder including coronary insufficiency, cardiac arrhythmias or hypertension
  • Unable to tolerate bronchodilator withdrawal
  • Known hypersensitivity to albuterol (salbutamol)
  • Change in asthma treatment regimen in past 30 days

Trial locations and contacts

1 site in 1 country.

Canada1 site, 1 recruiting
  • Toronto Western Hospital - Respiratory Research Lab

    Toronto, Ontario, M5T 2S8

    Recruiting

Other trials in Canada

About this study

Official title: A Pilot Efficacy Study of Inhaled Albuterol Delivered With Akita Breath Control and Pari Nebulization for the Treatment of Adults With Moderate Asthma

Albuterol (salbutamol) is a widely used asthma medication but is associated with undesirable side effects such as shakiness and increased heart rate. Targeted delivery of albuterol to area of lungs where it has most effect would require a lower total dose to produce the same beneficial effects while reducing the side effects.

It is anticipated that only 1/13th to 1/25th of the standard nebulized dose of albuterol will be required to attain same bronchodilator response as a standard nebulizer treatment as determined by lung function measurement and that the reduced dose will significantly reduce side effects as determined by hand tremor and heart rate.

Read the detailed description

Side effects of albuterol (salbutamol)are directly related to the dose delivered and absorbed into blood stream. By controlling aerosol delivery, dose delivered, site of deposition, amount of drug absorption can be determined and thus the magnitude of the side effects. Delivery and deposition of aerosols are determined by both aerosol characteristics (size and timing of delivery) and breathing characteristics (breath size, flow rate and breathholding). Data supports the theory that if a high dose of albuterol can be deposited in the larger airway generations and prevented from entering the pulmonary circulation from the lung periphery, that this will result in the largest magnitude of bronchodilator response with the lowest circulatory absorbance.

This is a pilot study in 10 adults with moderate asthma. there are no investigational drugs or devices. It is an investigation of a strategy to maximize response to an approved drug while minimizing side effects. The investigational strategies will deposit less than 25% of the standard nebulized dose in the airways. This will be accomplished by pairing a Pari eFlow nebulizer configured to deliver particle sizes of 3.5 to 6 microns, with an Akita delivery system programmed to deliver the drug as either a late or early bolus during inspiration. The Akita is programmed with a specific breathing pattern based on participant's lung function tests at screening.

Moderate asthmatics with bronchodilator response >20% improvement in FEV1 will be selected. Treatments will be administered on separate days 1-7 days apart. Following baseline measurements 1 of 5 randomized aerosol treatments will be administered. Efficacy (FEV1) and side effects (tremor and heart rate)will be monitored for 6 hours following drug administration.

Conditions
Asthma
Being tested
aerosol drug deposition strategies, Albuterol
Medical subject headings
Asthma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • aerosol drug deposition strategiesProcedure or surgery

  • AlbuterolDrug

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. change in FEV1 expressed as a percent of predicted between baseline and 1 hour post drug administration.

Secondary outcomes (3)
  1. duration of effect based on FEV1 at 6 hours post treatment compared to standard treatment

  2. change in hand tremor compared to standard treatment

  3. change in heart rate compared to standard treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Oct 2006 (estimated)
  2. Study startOct 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
10 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00385359
Sponsor's protocol ID
IA-01
Status last verified
Oct 2006
First submitted
6 Oct 2006
Last updated
9 Oct 2006
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing aerosol drug deposition strategies and Albuterol in people with Asthma, run by University Health Network, Toronto at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 9 Oct 2006. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Patricia McClean, MSc (416-603-5800 ext. 3438, pmcclean@uhnres.utoronto.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

change in FEV1 expressed as a percent of predicted between baseline and 1 hour post drug administration.. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Oct 2006.

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