The Use of Capsaicin Challenge for Diagnosis, Monitoring and Follow-up of Chronic Cough.

March 7, 2013 updated by: Tel-Aviv Sourasky Medical Center
The purpose of this study is to determine whether the capsaicin challenge can improve the diagnosis, treatment, monitoring and follow-up in patients with chronic cough.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Capsaicin is administrated in incremental concentrations with two inhalations of normal saline solution. Patients are instructed to exhale to functional residual capacity and than to inhale through the mouthpiece for 1 second (single breath inhalation). The number of coughs in the first 10 seconds after each inhalation is counted. C2; the concentration of which the patient responded by 2 coughs, C5;the concentration of which the patient responded by 5 coughs. The challenge ends at C5.

Study Type

Interventional

Enrollment (Anticipated)

25

Phase

  • Not Applicable

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with persisting cough for more than 3 months, without known respiratory or lung diseases

Exclusion Criteria:

  • Diagnosis of respiratory or lung diseases of any kind

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

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: chronic cough
Capsaicine challenge in chronic cough patients
Other: capsaicin challenge

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
cough reflex hypersensitivity
Time Frame: 3 months
3 months

Collaborators and Investigators

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

Sponsor

Tel-Aviv Sourasky Medical Center

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

March 1, 2013

Primary Completion (Anticipated)

December 1, 2013

Study Completion (Anticipated)

December 1, 2013

Study Registration Dates

First Submitted

March 7, 2013

First Submitted That Met QC Criteria

March 7, 2013

First Posted (Estimate)

March 8, 2013

Study Record Updates

Last Update Posted (Estimate)

March 8, 2013

Last Update Submitted That Met QC Criteria

March 7, 2013

Last Verified

March 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TASMC-13-LF-0695-CTIL

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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