Predictive Value of Spirometric PIF to Produce PIF Rate Needed for the Use of Current DPI's.

December 13, 2017 updated by: Universitair Ziekenhuis Brussel

Predictive Value of Peak Inspiratory Flow Rate Derived From Spirometry to Determine the Patient's Ability to Produce Peak Inspiratory Flow Rate to Overcome the Resistance of Current Dry Powders Inhalers.

The main aim is to study correlations between Peak inspiratory flow measured during a spirometry (PIFspiro) and Peak inspiratory flow measured over a pre-set resistance (PIFresist) in COPD patients and severe asthma patients. PIFresist will be measured using 5 different resistances, representing all DPI's relevant for the treatment of obstructive lung diseases. If this shows a distinct relationship between PIFspiro and PIFresist, PIFspiro cut-off points will be sought in an attempt to predict which patients are likely to be able to produce optimal flows for DPI use. If successful, this will make the actual measurement of PIFresist redundant in clinical practice. Also the relationship between PIFresist and device internal resistance in addition to PIFspiro (which corresponds to a very low resistance) will be examined.

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.

Detailed Description

The correct use of dry powder inhalers (DPI) crucially depends on the peak inspiratory flow (PIF) that the patient can generate when overcoming internal resistance of the inhaler device.

It has been shown that some patients cannot achieve sufficient peak inspiratory flows with some DPI's, especially in the elderly population. The In-check Dial device (Clement Clarke International Ltd, Harlow, UK) allows to measure these inspiratory flows for different pre-set resistances, representing different DPI's.

Study design: interventional, single center, single visit study

30 Severe asthmatics and 70 COPD patients will be recruited in the UZ Brussel respiratory outpatient clinic.

All participants will provide written informed consent.

Patients will perform:

  • pre-bronchodilator spirometry for the measurement of PIFspiro as per European respiratory Society/American Thoracic Society (ERS/ATS) guidelines for standard lung function5 (part of routine clinical follow-up).
  • 5 forced inspiratory manoeuvres using the In-check Dial device G16, set at 5 different resistances (performed in order of increasing resistance), yielding the PIFresist values for the different DPI's

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.
100

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 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

  • Belgium
      • Brussel, Belgium, 1090
        • Recruiting
        • UZ Brussel
        • Contact:
          • Anja Baeten

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

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Severe asthmatics (M/F; > 20 y) entering the Belgian Severe Asthma Registry (BSAR)
  • COPD patients (GOLD stage II-IV; M/F; > 40 y)

Exclusion Criteria:

  • Inability to perform spirometry

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: Other
  • Allocation: N/A
  • Interventional Model: Single Group 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.
Experimental: Severe asthma patients; COPD patients
Cross sectional study Lung function measurement
Device: In-check Dial device (Clement Clarke International Ltd, Harlow, UK)
  • pre-bronchodilator spirometry for the measurement of PIFspiro as per ERS/ATS guidelines for standard lung function5 (part of routine clinical follow-up).
  • 5 forced inspiratory manoeuvres using the In-check Dial device G16, set at 5 different resistances (performed in order of increasing resistance), yielding the PIFresist values for the different DPI's

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
PIFspiro
Time Frame: At inclusion (D0)
PIFspiro (L/s): PIF measurement from standardized spirometry (3 flow-volume measurements);
At inclusion (D0)
PIFresist
Time Frame: At inclusion (D0)
PIFresist (L/min): PIF from In-check Dial (5 flow measurements with flow restrictor in 5 different positions)
At inclusion (D0)

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.
Universitair Ziekenhuis Brussel

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Shane Hanon, Universitair Ziekenhuis Brussel

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 (Actual)

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 12, 2017

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.
September 1, 2019

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, 2019

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).
October 26, 2017

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.
December 13, 2017

First Posted (Actual)

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.
December 19, 2017

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.
December 19, 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.
December 13, 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.
October 1, 2017

More Information

Terms related to this study

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.
  • 143201733083

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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