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CompletedNCT03290222TRACKUpdated Aug 1, 2018

TRACK: Validation of the Portuguese Version

An observational study in Asthma and Respiratory Disease, sponsored by Federal University of São Paulo. Completed at 1 site in Brazil. Open to participants aged Up to 5 Years. Per ClinicalTrials.gov, last updated 2018-08-01.

Sponsored by Federal University of São Paulo · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
299
Ages
Up to 5 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 138 studies in Asthma with a site in Brazil — 15 open to participants now, 18 under way, 5 of them phase 3. Asthma · Brazil.

Enrollment
8th of 13
299 · median 359
Started
2017
with 11 others
Observational
13 of 138
3 open now
Registered
92nd of 138
by date

Among the 138 studies in Asthma with a site in Brazil, this one is the 8th largest by enrollment of the 13 observational ones that give a count, is one of 12 that started in 2017, is one of 13 observational ones, and was the 92nd registered.

Asthma

4,843 studies on the registry are indexed under Asthma; 602 are open to participants now.

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Open to participants now

15 of the 138 studies in Asthma with a site in Brazil are open now. Recruiting first, the newest first:

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All 15 open studies →

A study can be open while its sites in Brazil have not opened yet or have stopped. Only those recruiting at a site in Brazil →

Who these studies take

Of the 417 Asthma studies recruiting now, 140 (34%) set no upper age limit and 205 (49%) stop at 75 or younger; 146 take children under 18; 104 take healthy volunteers.

This study: Up to 5 Years · all sexes · no healthy volunteers.

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02

Study summary

The TRACK ("Test for Respiratory and Asthma Control in Kids") questionnaire is a validated instrument to evaluate the control of respiratory symptoms in young children. The TRACK questionnaire was developed in English and a version in Portuguese is not available or validated, purpose of the present project.

Read the detailed description

The TRACK ("Test for Respiratory and Asthma Control in Kids") questionnaire is the only instrument developed and validated so far to evaluate the control of respiratory symptoms in young children under five years of age. The TRACK questionnaire consists of five questions, scored from 0 to 20, given to caregivers of children with asthma or recurrent respiratory symptoms, and addresses respiratory symptoms, nocturnal awakenings and limitation of daily activities in the last four weeks, use of bronchodilator medications over the past three months and systemic corticosteroids in the last year.

The TRACK questionnaire was developed in English and has already been translated and validated into Spanish and Arabic. At the moment there is no translation and validation of the TRACK questionnaire for the Portuguese language, purpose of the present project.

03

Conditions studied

  • Asthma
  • Respiratory Disease

Keywords

  • Respiratory symptoms
  • Children
04

Who can participate

Ages eligible
Up to 5 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Children up to five years of age with recurrent respiratory symptoms attended at pediatric clinics will be included in the study.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Native Portuguese speakers families
  • Medical diagnosis of asthma or history of at least three episodes of cough and/or wheeze and/or dyspnea (duration longer than 24 hours) and treated with bronchodilators

Exclusion criteria

Exclusion Criteria:

  • Other relevant pulmonary diseases (i.e.: cystic fibrosis, bronchopulmonary dysplasia)
  • Systemic diseases (i.e.: heart diseases, neurologic disorders)
  • Premature birth (under 37 weeks of gestational age)
  • Congenital malformations
  • Illiteracy and/or inability of parents to understand the questionnaire
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
299 participants (actual)
Patient registry
No

Groups and cohorts

  • TRACK

    Children will be followed for four weeks (3 to 5 weeks) after the inclusion in the study. Parents will complete the TRACK questionnaire in both visit and will answer additional questions about respiratory symptoms and use of medication.

    Other: TRACK questionnaire

Interventions

  • OtherTRACK questionnaire

    TRACK questionnaire consists of five questions, scored 0-20, to be made to caregivers of children with asthma or recurrent respiratory symptoms, regarding respiratory symptoms, nocturnal awakenings and limitation of daily activities in the last four weeks, use of bronchodilators in the last three months and systemic corticosteroids in the last year

06

What researchers measure

Primary outcomes

  1. Global Initiative for Asthma (GINA) criteria

    The TRACK criterion validation will be performed by the comparison of the scores obtained from patients in the three levels of control, according to GINA criteria

    Time frame: 4 weeks

  2. Respiratory symptoms

    Constructive validation will be done by comparing the TRACK notes between patients discriminated according to their respiratory symptoms (symptomatic, recent symptoms, and asymptomatic)

    Time frame: 4 weeks

Secondary outcomes

  1. Medical opinion

    Constructive validation will also be done by comparing the TRACK notes between patients discriminated according to the medical opinion

    Time frame: 4 weeks

07

Study locations

1 site
  • Division of Allergy and Clinical Immunology
    São Paulo, 0425002, Brazil
08

References and documents

Publications

  • Murphy KR, Zeiger RS, Kosinski M, Chipps B, Mellon M, Schatz M, Lampl K, Hanlon JT, Ramachandran S. Test for respiratory and asthma control in kids (TRACK): a caregiver-completed questionnaire for preschool-aged children. J Allergy Clin Immunol. 2009 Apr;123(4):833-9.e9. doi: 10.1016/j.jaci.2009.01.058. PubMed 19348922 ↗
  • Zeiger RS, Mellon M, Chipps B, Murphy KR, Schatz M, Kosinski M, Lampl K, Ramachandran S. Test for Respiratory and Asthma Control in Kids (TRACK): clinically meaningful changes in score. J Allergy Clin Immunol. 2011 Nov;128(5):983-8. doi: 10.1016/j.jaci.2011.08.010. Epub 2011 Sep 8. Erratum In: J Allergy Clin Immunol. 2012 Jan;129(1):270. PubMed 21906790 ↗
  • Rodriguez-Martinez CE, Nino G, Castro-Rodriguez JA. Validation of the Spanish version of the Test for Respiratory and Asthma Control in Kids (TRACK) in a population of Hispanic preschoolers. J Allergy Clin Immunol Pract. 2014 May-Jun;2(3):326-31.e3. doi: 10.1016/j.jaip.2014.01.014. Epub 2014 Mar 29. PubMed 24811025 ↗
  • Wandalsen GF, Dias RG, Chong-Neto HJ, Rosario N, Moraes L, Wandalsen NF, Medeiros D, Bianca ACD, Urrutia-Pereira M, Avila J, Jorge PP, Sole D. Test for Respiratory and Asthma Control in Kids (TRACK): validation of the Portuguese version. World Allergy Organ J. 2018 Dec 5;11(1):40. doi: 10.1186/s40413-018-0219-y. eCollection 2018. PubMed 30534341 ↗

Individual participant data

Plan to share: Undecided

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2017 to primary completion in Feb 2018, 5 months.

Of 364 non-industry observational studies under Asthma, half reached primary completion within 38 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 97. This study's 5 months is below that.

Counting every sponsor, half of 454 studies reached it within 36 months; a quarter within 18 and three quarters within 82.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 19, 2017
First posted
Sep 21, 2017
StartActual
Aug 22, 2017
Primary completionActual
Feb 1, 2018
CompletionActual
Apr 1, 2018
Last update
Aug 1, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 1, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03290222
Collaborators
AstraZeneca
Responsible party
Gustavo Wandalsen (Professor of the Pediatrics Department, Federal University of São Paulo) — Principal investigator
First posted
Sep 21, 2017
Start date
Aug 22, 2017
Primary completion
Feb 1, 2018
Completion
Apr 1, 2018
Last update
Aug 1, 2018

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2018. You cannot join it, but the record below documents what was studied.

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