Inspiratory Muscle Training and Asthma

October 2, 2019 updated by: Mitch Lomax, University of Portsmouth

Inspiratory Muscle Training as a Novel Approach in the Treatment of Asthma

This is a pilot study which will assess the feasibility of a follow on main study. This study will examine the impact of inspiratory muscle training on quality of life, rescue drug medication usage, and other markers of asthma in adult asthmatics in the UK.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
16

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
    • Hampshire
      • Portsmouth, Hampshire, United Kingdom, PO6 3LY
        • Respiratory Centre, Queen Alexandra Hospital, Cosham
      • Portsmouth, Hampshire, United Kingdom, PO6 3LY
        • University of Portsmouth

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 59 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Asthma Control Questionnaire score of ≥ 1.5
  • 10 mg or less of prednisolone (or equivalent) daily
  • Aged 18 to 59 years inclusive
  • Able to provide written informed consent

Exclusion Criteria:

  • Any significant heart or lung disease other than asthma including any previous history of pneumothorax
  • Patients with a concomitant condition (including clinically relevant cardiovascular, hepatic, neurological, endocrine, or other major systemic disease) not controlled with treatment, making implementation of the protocol or interpretation of the study results difficult
  • Women who are pregnant
  • Forced expiratory volume in one second of less than 50% best or predicted
  • A history of smoking 20 cigarettes a day for 20 years or more (or an equivalent amount)
  • Undertaken a structured program of inspiratory muscle training within the past three months
  • Currently a participant in another interventional study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Experimental
6 weeks of inspiratory muscle training, 6 days per week. The intensity of training will be equivalent to up to 50% of pre-training maximal inspiratory mouth pressure and will be adapted weekly to reflect the improvement in inspiratory muscle strength
Other: inspiratory muscle training
Both groups will undertake six weeks of inspiratory muscle training (POWERbreathe, H&B International Ltd, UK), six days per week, with the only difference being the load set on the inspiratory muscle training device. For the real inspiratory muscle training group this load will be set to around 50% of maximal inspiratory mouth pressure and for the sham inspiratory muscle training group this load will be set to around 5% of maximal inspiratory mouth pressure.
Sham Comparator: Sham Comparator
6 weeks of sham inspiratory muscle training, 6 days per week. The intensity of training will be equivalent to 5% of pre-training inspiratory mouth pressure throughout the 6 week period.
Other: inspiratory muscle training
Both groups will undertake six weeks of inspiratory muscle training (POWERbreathe, H&B International Ltd, UK), six days per week, with the only difference being the load set on the inspiratory muscle training device. For the real inspiratory muscle training group this load will be set to around 50% of maximal inspiratory mouth pressure and for the sham inspiratory muscle training group this load will be set to around 5% of maximal inspiratory mouth pressure.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Maximal Inspiratory Mouth Pressure (MIP)
Time Frame: pre (after the 4 week run-in) and post 6 weeks of IMT
MIP is a surrogate measure of inspiratory muscle strength and was measured pre and post 6 weeks of either experimental or sham inspiratory muscle trianing (IMT).
pre (after the 4 week run-in) and post 6 weeks of IMT

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Portsmouth

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Health Service, United Kingdom

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 7, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 12, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 16, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 25, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 2, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IMT and Asthma

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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