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Asthma, BronchialNCT03034447

Sleep Apnea in Asthmatic Children and Teenagers

A study testing Questionnaire, Lung Function Test and Home Sleep Study in people with Asthma, Bronchial and Bronchial Asthma, run by Federal University of São Paulo at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Asthma and sleep apnea are both respiratory diseases and one can worsen the other. Those who suffer from asthma have a higher risk of sleep apnea and sleep apnea can make the asthma more difficult to control. Read more about this study

Who is it for?
Ages 7 to 17 years
Conditions the study is for
Asthma, Bronchial, Bronchial Asthma, Apnea, Sleep
What is being tested?
Questionnaire, Lung Function Test and Home Sleep Study
Could I receive a placebo?
No, everyone receives an active treatment
How many people
80 participants
Where
1 siteBrazil
Study dates
Dec 2016to Sep 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 7 to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Persistent asthma

Who cannot join

  • Craniofacial malformation
  • Thoracic malformation
  • Genetic syndromes
  • Bronchopulmonary dysplasia
  • Bronchiolitis obliterans
  • Neuromuscular diseases
  • Sickle cell anemia
  • Cystic fibrosis

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Federal University of São Paulo

    São Paulo, 04021-001

Other trials in Brazil

About this study

Official title: Obstructive Sleep Apnea in Asthmatic Children: Does the Sex Matter?

Asthma and sleep apnea are both respiratory diseases and one can worsen the other. Those who suffer from asthma have a higher risk of sleep apnea and sleep apnea can make the asthma more difficult to control.

As girls usually have a more severe asthma than boys, the investigators believe that girls have a higher risk of sleep apnea.

Read more

To test if asthmatic girls have more sleep apnea than boys, the investigators are going to ask them questions regarding asthma and sleep symptoms (such as snore) and the investigators are going test the lung function and how many times they stop breathing during the sleep. The sleep test is going to be performed in children's home.

In children, having sleep apnea can make the asthmatic stay in the hospital 30% more when they have an asthma attack. We also are going to look if sleep apnea increases the number of hospitalizations and asthma attacks in the past 12 months.

Read the detailed description

Obstructive sleep apnea (OSA) and asthma are both inflammatory airway diseases. A systematic review regarding sleep-disordered breathing (SDB) in asthmatic children analyzed 17 studies but only two of them had objective OSA measurement. In total, 45,115 children were included, 53% boys, mean age 8.6 ± 2.5 years. SDB was present in 23.8% of asthmatic children and in 16.7% of non-asthmatic (p < 0.001, OR 1.9, 95%CI 1.7-2.2).

An American study found that OSA in asthmatic children increases hospital length of stay (OR 2.3; 95% CI = 1.8 - 2.9). Brazilian database of the year 2015 showed that, among children 5-19 years, asthma was the 5th cause of hospitalization: a total of 2.4% of the hospitalization in this age group, after birth and its complication (31%), limb fractures (5.7%), pneumonia (3.8%), and appendicitis (3.2%).

The relationship among asthma severity (mild, moderate, and severe) and OSA has been described previously, but not in every study. Poor asthma control has also been linked to a higher OSA risk in adults and children.

OSA and asthma share many risk factors: rhinitis, increased collapsibility of the upper airway, local and systemic inflammation, gastroesophageal reflux, and obesity.

A higher risk of SDB in asthmatic girls has recently been described (OR 2.55 for girls and 0.70 for boys). Among non-asthmatic children OSA is usually equal among boys and girls until adolescence. A possible explanation is asthma severity in children: younger boys are more severe but after puberty, girls are.

Since OSA and asthma are linked diseases and that little is known about them in the pediatric field, specially differences related to sex, the investigators hypothesize that: 1) asthmatic girls have a higher OSA risk; 2) OSA will be higher in asthmatic children compared to the pediatric literature; 3) asthma severity, asthma control, and rhinitis will be related to a higher OSA risk. The investigators also aim to analyze factors associated with a higher risk of hospitalizations and asthma attacks.

Being tested
Questionnaire, Lung Function Test, Home Sleep Study
Keywords
Asthma, Obstructive Sleep Apnea, Children, Teenagers
Medical subject headings
Asthma, Sleep Apnea Syndromes, Disease, Sleep Apnea, Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • QuestionnaireOther

    Children and parents are going to inform data regarding socioeconomical status, asthma and rhinitis diagnosis, asthma and rhinitis control, medications, sleep complaints, and sleep habits

  • Lung Function TestOther

    Also called Spirometry

    Children are going to blow in a machine that measures how the lung is working

  • Home Sleep StudyOther

    Also called Polysomnography

    Children are going to sleep at home with a device that tells if they stop breathing during sleep

Study groups in NCT03034447
Study groupRoleWhat they receive
AsthmaOtherChildren and teenagers with persistent asthma will perform questionnaires, lung function test, and home sleep study
Receives: Other: Questionnaire; Other: Lung Function Test; Other: Home Sleep Study

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Sleep Apnea Syndrome

    Apneas and hypopneas during sleep

    Measured: 1 night

Secondary outcomes (3)
  1. Asthma Control

    Asthma Control based on Global Initiative for Asthma (GINA) questions

    Measured: 4 weeks

  2. ER visits

    How many times went to hospital the previous year

    Measured: 1 year

  3. Lung function

    Currently lung function

    Measured: 1 day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jan 2017 (estimated)
  2. Study startDec 2016
  3. Primary completionSep 2018
  4. Study completionSep 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Not applicable
Intervention model
Single group
Model description
Sleep study and spirometric evaluation of children with asthma
Masking
None (open label)
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03034447
Sponsor's protocol ID
CEP/UNIFESP 1398/2016
Status last verified
Feb 2019
First submitted
20 Jan 2017
Last updated
15 Feb 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Malakasioti G, Gourgoulianis K, Chrousos G, Kaditis A. Interactions of obstructive sleep-disordered breathing with recurrent wheezing or asthma and their effects on sleep quality. Pediatr Pulmonol. 2011 Nov;46(11):1047-54. doi: 10.1002/ppul.21497. Epub 2011 Aug 1.

    PubMed 21809473
  • Kheirandish-Gozal L, Dayyat EA, Eid NS, Morton RL, Gozal D. Obstructive sleep apnea in poorly controlled asthmatic children: effect of adenotonsillectomy. Pediatr Pulmonol. 2011 Sep;46(9):913-8. doi: 10.1002/ppul.21451. Epub 2011 Apr 4.

    PubMed 21465680
  • Alonso-Alvarez ML, Teran-Santos J, Ordax Carbajo E, Cordero-Guevara JA, Navazo-Eguia AI, Kheirandish-Gozal L, Gozal D. Reliability of home respiratory polygraphy for the diagnosis of sleep apnea in children. Chest. 2015 Apr;147(4):1020-1028. doi: 10.1378/chest.14-1959.

    PubMed 25539419
  • Shanley LA, Lin H, Flores G. Factors associated with length of stay for pediatric asthma hospitalizations. J Asthma. 2015 Jun;52(5):471-7. doi: 10.3109/02770903.2014.984843. Epub 2014 Nov 21.

    PubMed 25375904
  • Goldstein NA, Aronin C, Kantrowitz B, Hershcopf R, Fishkin S, Lee H, Weaver DE, Yip C, Liaw C, Saadia TA, Abramowitz J, Weedon J. The prevalence of sleep-disordered breathing in children with asthma and its behavioral effects. Pediatr Pulmonol. 2015 Nov;50(11):1128-36. doi: 10.1002/ppul.23120. Epub 2014 Dec 2.

    PubMed 25461921

Questions about this trial

What is this clinical trial studying?

A study testing Questionnaire, Lung Function Test and Home Sleep Study in people with Asthma, Bronchial and Bronchial Asthma, run by Federal University of São Paulo at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Sleep Apnea Syndrome (time frame: 1 night). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03034447, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Feb 2019.

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