Inhaled Nebulized Furosemide & Physical Activity-Related Breathlessness

February 10, 2017 updated by: Dennis Jensen, Ph.D., McGill University

Effects of Inhaled Furosemide on Breathlessness During Exercise in the Presence of External Thoracic Restriction: A Dose-Reponse Study

Breathlessness on exertion is a common and troublesome complaint of individuals with restrictive lung disorders. In these adults, breathlessness contributes to physical activity-limitation and avoidance and an adverse health-related quality-of-life, often in a self-perpetuating cycle. It follows that alleviating dyspnea and improving exercise tolerance are among the principal goals in the management of adults with restrictive lung disorders. Nevertheless, effective management of breathlessness and physical activity-limitation remains an elusive goal for many healthcare providers and current therapies (e.g., antifibrotic agents, oxygen, exercise training) are only partially successful in this regard. Thus, research aimed at identifying breathlessness-specific medications to complement existing therapies for the management of physical activity-related breathlessness in restrictive lung disorders is timely and both clinically and physiologically relevant. The purpose of this randomized crossover study study is to examine the acute effects of two doses of inhaled nebulized furosemide (a loop diuretic) on the perception of breathlessness during laboratory-based cycle exercise in healthy, young men in the presence of an external thoracic restriction to mimic a 'mild' restrictive lung deficit. To this end, the investigators will compare the effects of inhaled 0.9% saline placebo and inhaled furosemide (40 mg and 120 mg) on detailed assessments of breathlessness (sensory intensity and affective responses) and its physiological determinants (ventilation, breathing pattern, dynamic operating lung volumes, cardio-metabolic function) symptom-limited, high-intensity, constant-work-rate cycle exercise testing with external thoracic restriction sufficient to mimic a 'mild' restrictive pulmonary deficit in healthy, men aged 18-40 years.

Study Overview

Status

Status

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

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 (Anticipated)

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.
30

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.
  • Phase 1

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Canada
    • Quebec
      • Montreal, Quebec, Canada, H4A 3J1
        • Recruiting
        • Centre of Innovative Medicine of the McGill University Health Centre
        • Contact:

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 40 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Male
  • Aged 18-40 years
  • FEV1 ≥80% predicted
  • FEV1/FVC >70%

Exclusion Criteria:

  • Current or ex-smoker
  • Body Mass Index <18.5 or >30 kg/m2
  • Self-reported history of cardiovascular, vascular, respiratory, renal, liver, musculoskeletal, endocrine, neuromuscular and/or metabolic disease/dysfunction
  • Taking doctor prescribed medications
  • Allergy to sulfa medications

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: CROSSOVER
  • Masking: QUADRUPLE

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: CWS+Furosemide (40 mg)
Chest wall strapping to reduce vital capacity by 20% of its baseline value + single-dose inhalation of furosemide (40 mg)
Other: CWS
Chest wall strapping to reduced vital capacity by 20% of its baseline value
Other Names:
  • Chest wall strapping
Drug: Furosemide
40 mg and 120 mg
PLACEBO_COMPARATOR: CWS+0.9% saline placebo
Chest wall strapping to reduce vital capacity by 20% of its baseline value + single-dose inhalation of 0.9% saline placebo
Drug: Placebo
0.9% saline
Other: CWS
Chest wall strapping to reduced vital capacity by 20% of its baseline value
Other Names:
  • Chest wall strapping
EXPERIMENTAL: CWS+Furosemide (120 mg)
Chest wall strapping to reduce vital capacity by 20% of its baseline value + single-dose inhalation of furosemide (120 mg)
Other: CWS
Chest wall strapping to reduced vital capacity by 20% of its baseline value
Other Names:
  • Chest wall strapping
Drug: Furosemide
40 mg and 120 mg

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
Time Frame
Sensory intensity (Borg 0-10 scale) ratings of dyspnea at isotime
Time Frame: Participants will be followed until all study visits are completed, an expected average of 3 weeks
Participants will be followed until all study visits are completed, an expected average of 3 weeks

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.
McGill University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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.
April 1, 2016

Primary Completion (ANTICIPATED)

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.
April 1, 2017

Study Completion (ANTICIPATED)

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.
September 1, 2017

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).
May 7, 2013

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.
May 10, 2013

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.
May 13, 2013

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.
February 14, 2017

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.
February 10, 2017

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.
February 1, 2017

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.
  • 15-370-MUHC

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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