Environment Effect on Six-Minute Walk Test Performance (6MWTAATD)

August 20, 2019 updated by: University of Florida

Effect of the Environment on Six-minute Walk Test Performance in Individuals With Alpha-1 Antitrypsin Deficiency-Related Chronic Obstructive Pulmonary Disease

The purpose of this research study is to determine the effect of the environment on six-minute walk test performance in individuals with chronic obstructive pulmonary disease due to alpha-1 antitrypsin deficiency. The aim of the study is to determine the environmental impact on physical performance in this population to determine if any factors influence quality of life. This study was developed to evaluate the efficacy of the using the indoor six-minute walk test to determine eligibility for ambulatory oxygen therapy.

Study Overview

Status

Status

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

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.

Detailed Description

Participants will be asked to come to the Clinical Research Center (CRC) for a visit lasting about one hour. Participants will be asked to review and sign an informed consent document to participate in this trial. If participants agree to participate and sign the consent, the following procedures will be done. If they have not had pulmonary function testing performed in the past 18 months, standard spirometry testing will be performed. Participants will perform two six-minute walk tests, one indoors and one outdoors. First, they will be randomly assigned to perform either the indoor or outdoor testing first. Then participants will have their vital signs taken, perform the first six-minute walk study and immediately after have their vital signs taken again. Participants will have a rest period between the two six-minute walk tests of at least 30 minutes. Participants will then perform the second six-minute walk test with the same above procedures for the first test.

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.
27

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 States
    • Florida
      • Gainesville, Florida, United States, 32610
        • Uf Ctsi Crc

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Age above 18 years.
  2. Have a diagnosis of congenital Alpha-1 Antitrypsin Deficiency with an allelic combination of ZZ.
  3. Have a Forced Expiratory Volume in 1 second (FEV1)< 50% of predicted and FEV1/forced vital capacity (FVC) < 70% (Global Initiative for Chronic Obstructive Lung Disease [GOLD] stage II, III, or IV).
  4. Not currently prescribed Oxygen replacement at a rate of greater than 2 liters.
  5. Willing and able to perform two six-minute walk tests.
  6. Willing and able to provide written informed consent.

Exclusion Criteria:

  1. Subject has had a moderate or severe pulmonary exacerbation during the 4 weeks before the study visit.
  2. History of lung transplant.
  3. Severe concomitant disease (e.g., congestive heart failure, clinically significant pulmonary fibrosis, malignant disease [with the exception of skin cancers other than melanoma], history of acute hypersensitivity pneumonitis reaction, or current chronic hypersensitivity pneumonitis).
  4. Unwilling or unable to perform six-minute walk testing.
  5. Mentally challenged adult subjects who cannot give independent informed consent.
  6. In the opinion of the investigator the subject may have compliance problems with the protocol and the procedures of the protocol.
  7. American Thoracic Society listed absolute contraindications to six-minute walk test: unstable angina or myocardial infarction during previous month.

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: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

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.
Active Comparator: six-minute walk study indoors first
Participants randomized to indoor six-minute walk test first
Other: six-minute walk study indoors
Performance of a six-minute walk test according to American Thoracic Society standard.
Experimental: six-minute walk study outdoors first
Participants randomized to outdoor six-minute walk test first
Other: six-minute walk study outdoors
Performance of a six-minute walk test.
Active Comparator: six-minute walk study indoors second
Participants randomized to indoor six-minute walk test second
Other: six-minute walk study indoors
Performance of a six-minute walk test according to American Thoracic Society standard.
Experimental: six-minute walk study outdoors second
Participants randomized to outdoor six-minute walk test second
Other: six-minute walk study outdoors
Performance of a six-minute walk test.

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
Change in the meters walked during the six-minute walk test between the two groups.
Time Frame: baseline
baseline

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Borg Scale for shortness of breath between the two groups
Time Frame: baseline
The Borg Scale a numerical scale for assessing shortness of breath, from 0 representing no shortness of breath to 10 as maximal shortness of breath.
baseline
Change in Borg Scale for fatigue between the two groups
Time Frame: baseline
The Borg Scale a numerical scale for assessing shortness of breath, from 0 representing no shortness of breath to 10 as maximal shortness of breath.
baseline

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 Florida

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.
October 1, 2015

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.
August 30, 2017

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.
August 30, 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).
June 9, 2015

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.
July 16, 2015

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.
July 20, 2015

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.
August 22, 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.
August 20, 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.
August 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.
  • IRB201500220

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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