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CompletedNCT03370029Updated Feb 15, 2019

Respiratory Muscle Strength, Exercise Capacity and Physical Activity Levels in Children Primary Ciliary Dyskinesia

An observational study in Primary Ciliary Dyskinesia, sponsored by Gazi University. Completed at 1 site in Turkey. Open to participants aged 6 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-02-15.

Sponsored by Gazi University · Observational

Study type
Observational
Model
Case-control
Time perspective
Cross-sectional
Enrollment
26
Ages
6 Years to 18 Years
Sex
All
01

Study summary

Primary ciliary dyskinesia is an autosomal recessive disorder characterized by abnormal ciliary movement and disrupted mucociliary clearance. In uncleaned airways, microorganisms and respiratory irritants cause inflammation and infection. Permanent rhinitis and chronic sputum cough are typical features in primary ciliary dyskinesia patients. Primary ciliary dyskinesia is a disease that threatens lung function from pre-school age. One of the main causes of respiratory muscle weakness in chronic lung diseases diseases is worsening of lung function. Such a weakness causes alveolar hypoventilation, microatelectasis, reduction of the cough strength .The cough strength is important for airway cleaning.

Exercise capacity is affected in chronic lung diseases. Assessment of exercise capacity in chronic lung diseases is prognostically important. Reduced exercise capacity and pulmonary function in PCD cause decrease in physical activity level. PCD patients have low quality of life and early recognition has been found to affect the quality of life positively. Children with chronic illness have higher level of depression than healthy children.

In literature, no study investigated respiratory muscle strength, exercise capacity and physical activity PCD patients. Therefore, the investigators aimed to compare aforementioned outcomes in PCD patients and healthy controls.

Read the detailed description

According to sample size calculation 26 diagnosed primary ciliary dyskinesia patients and 26 healthy individuals will be included. Respiratory muscle strength, anaerobic and aerobic exercise capacity, physical activity, pulmonary functions, peripheral muscle strength, cough strength, respiratory muscle endurance, activity dyspnea perception, quality of life and depression will be evaluated. Primary outcome measurements are respiratory muscle strength, exercise capacity, physical activity; secondary outcomes are pulmonary functions, peripheral muscle strength, cough strength, respiratory muscle endurance, activity dyspnea perception, quality of life and depression.

02

Conditions studied

  • Primary Ciliary Dyskinesia

Keywords

  • Exercise capacity
  • Respiratory muscle strength
  • Physical inactivity
  • Quality of life
03

In context

Ciliary Motility Disorders

79 studies on the registry are indexed under Ciliary Motility Disorders; 26 are open to participants now.

This study's enrollment of 26 is below the median of 130 across 55 observational studies indexed under Ciliary Motility Disorders.

Browse Ciliary Motility Disorders studies →

Lead sponsor

Gazi University is the lead sponsor of 551 studies on the registry; 102 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Out- patients and healthy volunteers

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

  • Diagnosed primary ciliary dyskinesia patients,
  • 6-18 years of age,
  • under standard medications,
  • stable patients without exacerbation or infection

Exclusion criteria

Exclusion Criteria:

  • having cognitive disorder,
  • orthopedic or neurological disease with a potential to affect functional capacity,
  • acute infections or pneumonia,
  • problems which may prevent evaluating such as visual problems
05

Study design

Observational model
Case-control
Time perspective
Cross-sectional
Enrollment
26 participants (actual)
Patient registry
No

Groups and cohorts

  • Primary ciliary dyskinesia patients

    Primary ciliary dyskinesia patients will be included in study. Inclusion and exclusion criteria were considered.

  • Healthy individuals

    Those without diagnosed chronic disease will be included in study. Inclusion and exclusion criteria were considered.

06

What researchers measure

Primary outcomes

  1. Respiratory muscle strength

    Evaluated using mouth pressure device

    Time frame: first day

  2. Functional exercise capacity

    Evaluated using 6-minute walking test

    Time frame: first day

  3. Anaerobic exercise capacity

    Evaluated using 3-minute step test

    Time frame: first day

  4. Physical activity

    Evaluated using a metabolic holter

    Time frame: first day

Secondary outcomes

  1. Pulmonary functions

    Evaluated using spirometer

    Time frame: first day

  2. Muscle strength

    Evaluated using hand-held dynamometer for peripheral muscles (shoulder abduction, elbow flexion, knee extension, hand grip strength)

    Time frame: second day

  3. Cough strength

    Evaluated using PEFmeter

    Time frame: second day

  4. Respiratory muscle endurance

    Evaluated using respiratory muscle trainer (POWERbreathe)

    Time frame: second day]

  5. Activity dyspnea

    Evaluated using Modified Borg Scale (0-10 scores, higher values represent a worse outcome)

    Time frame: first day

  6. Generic Quality of life

    Cystic Fibrosis Questionnaire Revised (CFQ-R) Turkish version (Scores range from 0 to 100, with higher scores indicating better health. 9 Quality of life domains: Physical, role/school, vitality, emotion, social, body image, eating, treatment burden, health perceptions.3 symptom scales: Weight, respiratory, and digestion.Number of items in CFQ-R CFQ-R Teen/Adult: 50. CFQ-R Parent: 44. CFQ-R Child: 35.)

    Time frame: second day

  7. Disease- specific quality of life

    Health-related quality-of-life questionnaires-Primary Ciliary Dyskinesia ( PCD-QOL) Turkish version ( PCD-QOL questionnaire developed different domains for different age groups: pediatric, adolescent, and adult patients as well as parents. These domains mainly evaluate physical, emotional, and social aspects of PCD related to QOL. Moreover, there are different domains for various symptoms at different age groups. The total numbers of items in the questionnaires are 37 in the questionnaire for children, 43 in the one for adolescents, 49 in the one for adults, 41 in the parents' questionnaire.

    Time frame: second day

  8. Depression

    Children's Depression Inventory Turkish Version (Children's Depression Inventory is a 27-item, self-rated, symptom-oriented scale.

    Time frame: second day

07

Study locations

1 site
  • Gazi University Faculty of Health Sciences Department of Physical Therapy and Rehabilitation
    Yenimahalle, Turkey
08

References and documents

Publications

  • Firat M, Bosnak-Guclu M, Sismanlar-Eyuboglu T, Aslan AT. Aerobic exercise capacity, cough strength, posture, and depression in primary ciliary dyskinesia. Pediatr Pulmonol. 2023 Jan;58(1):73-80. doi: 10.1002/ppul.26158. Epub 2022 Sep 28. PubMed 36114723 ↗
  • Firat M, Bosnak-Guclu M, Sismanlar-Eyuboglu T, Tana-Aslan A. Respiratory muscle strength, exercise capacity and physical activity in patients with primary ciliary dyskinesia: A cross-sectional study. Respir Med. 2022 Jan;191:106719. doi: 10.1016/j.rmed.2021.106719. Epub 2021 Dec 17. PubMed 34952415 ↗

Individual participant data

Plan to share: No — There is not a plan to make individual participant data but when the statistical analyses of all data are made, all results will be shared.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2016 to primary completion in Feb 2018, 16 months.

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

Registered
Nov 10, 2017
First posted
Dec 12, 2017
StartActual
Oct 2016
Primary completionActual
Feb 25, 2018
CompletionActual
Jun 30, 2018
Last update
Feb 15, 2019
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 Feb 15, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03370029
Lead sponsor
Gazi University
Responsible party
Meral Boşnak Güçlü (Associate professor, Gazi University) — Principal investigator
First posted
Dec 12, 2017
Start date
Oct 2016
Primary completion
Feb 25, 2018
Completion
Jun 30, 2018
Last update
Feb 15, 2019

Study contacts

Merve Fırat, Pt
study chair · Research assistant
Meral Boşnak Güçlü, Pt,Phd
study director · Associate professor
Tuğba Şişmanlar Eyüboğlu, MD
principal investigator · Medical doctor
Ayşe Tana Aslan, MD,Phd
principal investigator · Professor

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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