The Effect of Single Dose Paracetamol on the Lower Airways of Asthmatic and Healthy Children

January 23, 2011 updated by: Tel-Aviv Sourasky Medical Center

The Effect of Paracetamol on Lower Airway Obstruction in Asthmatic Versus Non Asthmatic Children

Asthma is a common inflammatory airway disease. Several researches have demonstrated a possible connection between asthma and exposure to paracetamol.

Our hypothesis is that even a single dose of paracetamol is sufficient to cause a measurable change in lung functions.

This trial aims to identify a possible effect of single dose paracetamol on lower airway function.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Asthma is a common inflammatory airway disease and its prevalence is on the rise all around the world, Most significantly in children under 5 years.

Paracetamol is one of the most common drugs used with children at thus age groups and several studies have proved a causative connection between exposure to paracetamol and asthma prevalence as well as other allergic conditions.

The mechanism is presumably by reduction of glutathione level, resulting in oxidative burst and formation of reactive oxygen species (ROS).

In addition, paracetamol maybe directly cytotoxic to pneumocytes if given in overdose.

The goal of this research is to identify and quantify the effect of single dose of paracetamol on lung functions of asthmatic and healthy subjects.

The study group will include 40 children aged 7-16 years, who are known to have asthma and a control group of 20 healthy children.

The children will be randomized to receive a dose of paracetamol or placebo, and lung functions will be measured by both spirometry and Fraction of expired Nitric Oxide (FeNO) test.

Each child will receive both paracetamol and placebo, randomly in to consecutive tests, thus children will serve as their own control.

Study Type

Interventional

Enrollment (Anticipated)

60

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

  • Israel
      • Tel Aviv, Israel
        • Recruiting
        • Tel Aviv Sourasky Medical Center
        • Sub-Investigator:
          • Assaf Tsivion, M.D

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

7 years to 16 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • age: 7-16 years
  • research group: children who have been diagnosed as asthmatic according to the American thoracic society (ATS) criteria
  • control group: children who are not known to have asthma

Exclusion Criteria:

  • paracetamol sensitivity
  • children with any kind of chronic disease (except asthma)
  • children with non asthma related chronic lung disease
  • acute asthma attack
  • children on systemic steroids

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: asthmatic subjects
Asthmatic children will be randomly exposed to paracetamol and placebo consecutively and their lung functions will be blindly compared.
Drug: paracetamol
single dose of paracetamol 15mg/kg.
Other Names:
  • Acetaminophen
  • Acamol
Other: Healthy children
Children with no asthma as control group.
Drug: paracetamol
single dose of paracetamol 15mg/kg.
Other Names:
  • Acetaminophen
  • Acamol

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
A measurable change in lung functions in response to paracetamol exposure.
Time Frame: 1 year
1 year

Collaborators and Investigators

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

Sponsor

Tel-Aviv Sourasky Medical Center

Investigators

  • Principal Investigator: Ruth Soferman, M.D, TASMC

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, 2010

Primary Completion (Anticipated)

March 1, 2011

Study Registration Dates

First Submitted

February 22, 2010

First Submitted That Met QC Criteria

February 22, 2010

First Posted (Estimate)

February 23, 2010

Study Record Updates

Last Update Posted (Estimate)

January 25, 2011

Last Update Submitted That Met QC Criteria

January 23, 2011

Last Verified

January 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TASMC-10-RS-422-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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