Bronchial Hyperreactivity During Histamine Passive Exposure

February 20, 2015 updated by: Marie Bruyneel, Centre Hospitalier Universitaire Saint Pierre

Are Technicians Showing Bronchial Hyperreactivity Able to Safely Perform Bronchial Provocation Tests?

Bronchial hyperresponsiveness consists in excessive response to bronchial stimuli.Bronchial challenge test is used to confirm/exclude asthma (metacholine or histamine).Protection are used to avoid passive exposure of the technicians performing the test, despite the absence of evidence that they could develop a bronchoconstriction even if they suffer from BHR.The purpose of the study is to determine if patients with a high level of bronchial hyperreactivity and exposed passively to histamine during a bronchial challenge, are developing a bronchoconstriction, when placed in the same conditions that the technicians performing these tests.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Bronchial hyperresponsiveness (BHR) consists in excessive response to bronchial stimuli.Bronchial challenge test is used to confirm/exclude asthma.BHR is also present in other diseases such as allergic rhinitis, Chronic Obstructive pulmonary disease,heart failure..

Thes test is performed with metacholine or histamine with spirometric documented response to incremental doses.Protection are used to avoid passive exposure of the technicians performing the test, despite the absence of evidence that they could develop a bronchoconstriction if they suffer from BHR.

The purpose of the study is to determine if patients, newly diagnosed with a high level of bronchial hyperreactivity and exposed passively to histamine during a bronchial challenge, are reacting to histamine when placed in the same conditions that the technicians performing these tests.

Study Type

Interventional

Enrollment (Actual)

13

Phase

  • 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

  • Belgium
      • Brussels, Belgium, 1000
        • service de pneumologie, CHU St Pierre

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • adult patients with positive histamine challenge test (first dose)

Exclusion Criteria:

  • other active respiratory disease

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: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: asthma patients
patients who show a positive response at the first dos of histamine challenge test will be enrolled
Drug: histamine-benzylic alcohol (magistral preparation)
passive exposure to histamine during a bronchial hyperresponsiveness challenge

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
spirometric values in patients exposed passively to histamine during BHR challenge
Time Frame: 1 hour
1 hour

Collaborators and Investigators

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

Sponsor

Centre Hospitalier Universitaire Saint Pierre

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

May 1, 2013

Primary Completion (Actual)

May 1, 2014

Study Completion (Actual)

May 1, 2014

Study Registration Dates

First Submitted

August 29, 2013

First Submitted That Met QC Criteria

September 4, 2013

First Posted (Estimate)

September 9, 2013

Study Record Updates

Last Update Posted (Estimate)

February 23, 2015

Last Update Submitted That Met QC Criteria

February 20, 2015

Last Verified

February 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • AK/13-03-34/4235

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.

Clinical Trials on Asthma

Clinical Trials on histamine-benzylic alcohol (magistral preparation)

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Thailand

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe