NCT06259188

Brief Summary

The current "Global Initiative for Chronic Obstructive Lung Diseases" (GOLD) guideline emphasizes that pulmonary rehabilitation should be recommended to all chronic obstructive pulmonary disease (COPD) patients from Stage II onwards. Respiratory muscle training applied to individuals with COPD is an important part of pulmonary rehabilitation due to its benefits such as improving pulmonary function and respiratory muscle strength, reducing the severity of dyspnea, and increasing exercise capacity and quality of life. Although there is sufficient evidence in the literature about the benefits of IMT in individuals with COPD. There is little evidence showing the effects of EMT. Studies show that isolated IMT and EMT are effective in increasing respiratory muscle strength, endurance and exercise capacity. Results from a limited number of studies show that combined training of IMT and EMT is superior compared to isolated IMT or isolated EMT in improving exercise capacity and dyspnea. Incentive spirometers, with their different mechanical properties, are low-cost respiratory exercise devices that are widely used in the early postoperative period, lung diseases, long-term bed rest and in situations where it is necessary to maintain or increase the ventilation ability of the lung, but they do not apply any resistance to the respiratory muscles. In the pulmonary rehabilitation guidelines published by the American Thoracic Society (ATS) and the European Respiratory Society (ERS), the necessity of using devices that apply resistance to the respiratory muscles to strengthen the respiratory muscles is underlined. The personalized respiratory exercise device will be a device that has the clinical features of an incentive spirometer and respiratory muscle training devices (inspiratory and expiratory) and can be personalized according to the desired purpose. With the same device, patients will be able to both improve lung ventilation, such as an incentive spirometer, and strengthen their respiratory muscles.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
34

participants targeted

Target at P25-P50 for not_applicable chronic-obstructive-pulmonary-disease

Timeline
Completed

Started Apr 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 19, 2024

Completed
26 days until next milestone

First Posted

Study publicly available on registry

February 14, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

April 10, 2024

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 29, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 29, 2025

Completed
Last Updated

October 8, 2024

Status Verified

April 1, 2024

Enrollment Period

1.1 years

First QC Date

January 19, 2024

Last Update Submit

October 3, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Maximal static inspiratory mouth pressure

    Measurement will be made with a respiratory muscle strength measuring device. MIP: maximal inspiratory pressure

    1 week-8 week

  • Maximal static expiratory mouth pressure

    Measurement will be made with a respiratory muscle strength measuring device. MEP: maximal expiratory pressure

    1 week-8 week

Secondary Outcomes (9)

  • Respiratory Functions FEV1

    1 week-8 week

  • Respiratory Functions FVC

    1 week-8 week

  • Respiratory Functions FEV1/FVC

    1 week-8 week

  • Respiratory Functions PEF

    1 week-8 week

  • Diffusion Capacity

    1 week-8 week

  • +4 more secondary outcomes

Study Arms (2)

Personalized Breathing Exercise Device Group

EXPERIMENTAL

In the personalized respiratory exercise device group, the initial pressure load will be set to the resistance level corresponding to 40% of the MIP and MEP measurements. Participants will be asked to rest following 5 breathing cycles and repeat the training for 10 sets. In each set, there will be a one-minute rest break between repetitions. Participants will be able to practice both inspiratory and expiratory respiratory muscle training in a single breathing cycle. As the progression progresses, the perceived exertion level will be increased by 5-10% on a weekly basis, to be in the range of 4-6 according to the Modified Borg scale.

Device: Personalized Breathing Exercise Device

Respiratory Muscle Training Group

ACTIVE COMPARATOR

Respiratory muscle training will be done with Threshold® IMT and Threshold™ PEP devices. Training intensity will be set to 40% of MIP and MEP measurements in the first week. For inspiratory muscle training, participants will be asked to rest after 5 breathing repetitions and repeat the training for 10 sets. Participants will be asked to rest after 5 exhalation repetitions for expiratory muscle training and repeat the training for 10 sets. In each set, there will be a one-minute rest break between repetitions. As the progression progresses, the perceived exertion level will be increased by 5-10% on a weekly basis, to be in the range of 4-6 according to the Modified Borg scale. At this point, if the training threshold exceeds the upper pressure limits of Threshold® IMT + Threshold™ PEP devices, the training intensity will continue at the upper limit.

Device: Respiratory Muscle Training Device

Interventions

In the both groups the initial pressure load will be set to the resistance level corresponding to the 40% of the MIP and MEP measurement. Participants will be asked to rest following 5 breathing cycles and repeat the training for 10 sets. In each set, there will be a one-minute rest break between repetitions. In breathing exercise device group participants will be able to practice both inspiratory and expiratory respiratory muscle training in a single breathing cycle. In IMT+EMT group, patients will be able to practice different to device. As the progression progresses, the perceived exertion level will be increased by 5-10% every week, to be in the range of 4-6 according to the Modified Borg scale.

Respiratory Muscle Training Group

Personalized Breathing Exercise Device

Personalized Breathing Exercise Device Group

Eligibility Criteria

Age40 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosed with COPD by a pulmonologist according to GOLD 2022 diagnostic criteria (GOLD, 2022) and in classes B, C and D according to GOLD
  • Followed for at least 6 months
  • Clinically stable patients without exacerbations or infections

You may not qualify if:

  • Patients with a history of spontaneous or trauma-related pneumothorax
  • Patients with middle ear-related pathologies (such as tympanic membrane rupture, otitis)
  • Orthopedic and neurological problems that may interfere with exercise training
  • Changes in medical treatment during the study
  • Patients with unstable concomitant cardiac disease
  • Patients who have been involved in another pulmonary rehabilitation program within the last 6 months
  • Insufficient cooperation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul University-Cerrahpasa

Istanbul, 34320, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Ozge Ertan

    Istanbul University - Cerrahpasa

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Buket Akıncı

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Physiotherapist MSc

Study Record Dates

First Submitted

January 19, 2024

First Posted

February 14, 2024

Study Start

April 10, 2024

Primary Completion

May 29, 2025

Study Completion

May 29, 2025

Last Updated

October 8, 2024

Record last verified: 2024-04

Locations