CHildhood ASthma and Environment Research Study - CHASER Study

April 9, 2026 updated by: Stefania La Grutta, MD

"CHildhood ASthma and Environment Research study - CHASER study" is an observational longitudinal study in outpatient clinic of Pediatric Allergology & Pulmonology (PAP) of Respiratory Disease Research Center (RDRC) within the Institute of Biomedicine and Molecular Immunology (IBIM) of the National Research Council (CNR) of Palermo (RDRC-IBIM CNR), Italy.

The first phase - transversal study will identify determinants of pediatric asthma control

The second phase - longitudinal study, in patients with persistent asthma, will be focused on:

  • predictors for asthma exacerbations and loss of control
  • real life adherence to asthma therapy guidelines
  • phenotypic characterization through the collection of saliva samples
  • assessment of alterations and inflammatory changes in the nasal mucosa through nasal brushing
  • evaluation of the presence of 8-isoprostane, nicotine, cotinine and bisphenol-A through urine analysis.

Chaser Project is expected to improve the knowledge of pediatric asthma in patients with different level of control, identifying predictors for asthma exacerbations and loss of control.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

2660

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

    • Palermo
      • Palermo, Palermo, Italy, 90146
        • Institute of Biomedicine and Molecular Immunology, IBIM

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

5 years to 16 years (Child)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Children

Description

Inclusion Criteria:

  • age 5-16 years
  • asthma
  • not asthma

Exclusion Criteria:

  • chest deformity
  • active smoking

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Asthma
Time Frame: 5 years
5 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Measures from saliva samples
Time Frame: 5 years
5 years
Measures from nasal brushing
Time Frame: 5 years
5 years
Measures from urine samples
Time Frame: 5 years
5 years

Collaborators and Investigators

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

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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

September 1, 2011

Primary Completion (Actual)

February 1, 2020

Study Completion (Actual)

February 1, 2020

Study Registration Dates

First Submitted

April 29, 2015

First Submitted That Met QC Criteria

April 29, 2015

First Posted (Estimated)

May 4, 2015

Study Record Updates

Last Update Posted (Actual)

April 13, 2026

Last Update Submitted That Met QC Criteria

April 9, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The IPD collected will be available on December 2020.

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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