NCT06776315

Brief Summary

The goal of this observational study is to examine the effects of traditional respiratory rehabilitation and respiratory muscle strengthening training added to this program at the genetic level in asthma. The main questions it aims to answer are:

  • Does respiratory muscle strengthening exercise added to respiratory rehabilitation in asthmatic patients have additional benefits on rehabilitation outcome measures such as exercise capacity, shortness of breath, and muscle strength?
  • Does the gain obtained with respiratory muscle strengthening in asthmatic patients increase the quality of life of patients and have a positive effect on their psychological state?
  • Does respiratory rehabilitation applied to asthmatic patients have an effect on genetic changes?
  • Does respiratory muscle strengthening training applied in addition to respiratory rehabilitation in asthmatic patients have an effect on genetic changes?
  • Participants will be included in two different respiratory rehabilitation programs with and without respiratory muscle training, and pre- and post-treatment rehabilitation criteria and genetic changes will be compared.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
84

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 13, 2023

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

December 13, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 15, 2025

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 30, 2025

Completed
Last Updated

February 4, 2026

Status Verified

February 1, 2026

Enrollment Period

1.4 years

First QC Date

December 13, 2024

Last Update Submit

February 1, 2026

Conditions

Keywords

AsthmaPulmonary RehabilitationExerciseRehabilitationlong noncoding RNA

Outcome Measures

Primary Outcomes (6)

  • lncRNA MALAT1 expression levels

    Real-time PCR will be performed twice for each sample for each gene, and after all the steps, ΔCT, ΔΔCT, 2\^(ΔΔCT) fold change in expression between the experiment and control.

    Baseline and 12 weeks

  • Respiratory Muscle Strength Measurement

    The patient is seated in a straight-backed chair. The patient is asked to grasp the silicone mouthpiece with his/her mouth and inhale and exhale as quickly and deeply as possible. The measurements are repeated until 3 measurement values are obtained with a maximum of 10% deviation between the measured peak value. The maximum value is taken among the measured values.

    Baseline and 12 weeks

  • Forced Expiratory Volume in 1 s (FEV1 )

    FEV1 will perform by using the Pony Fx spirometry device, and according to the American Thoracic Society (ATS) guidelines.

    Baseline and 12 weeks

  • Exercise capacity

    A 6-minute walk test is performed for exercise capacity. After resting in a chair for a sufficient period (\>30 minutes), patients walk as fast as possible, without running, for 6 minutes on a straight 30-meter corridor. Before and after the test, the patient's fatigue and dyspnea are questioned using the Modified Borg Scale. Oxygen saturation and heart rate are monitored and recorded using a finger pulse oximeter before, during, and after the test.

    Baseline and 12 weeks

  • Forced Vital Capacity (FVC)

    FVC will perform by using the Pony Fx spirometry device, and according to the American Thoracic Society (ATS) guidelines.

    Baseline and 12 weeks

  • FEV1/FEVC

    FEV1/FEVC will perform by using the Pony Fx spirometry device, and according to the American Thoracic Society (ATS) guidelines.

    Baseline and 12 weeks

Secondary Outcomes (6)

  • Asthma Control Test (ACT-ACQ)

    Baseline and 12 weeks

  • Asthma Quality of Life Scale (AQLQ)

    Baseline and 12 weeks

  • Modified Medical Research Council (mMRC) Dyspnea Scale

    Baseline and 12 weeks

  • International Physical Activity Questionnaire-Short form (IPAQ-SF)

    Baseline and 12 weeks

  • Digital muscle strength measurement

    Baseline and 12 weeks

  • +1 more secondary outcomes

Study Arms (3)

Pulmonary Rehabilitation Group (PGr)

ACTIVE COMPARATOR

In the PGr program, exercises are planned to be performed under the supervision of a remote physiotherapist, 2 days a week with the telerehabilitation method and 1 day as a home-based program by the patient. The exercise program includes aerobic, resistance exercises and respiratory exercises, and patients are followed for 3 months.

Procedure: Standard pulmonary rehabilitation programme

Pulmonary Rehabilitation Group with Inspiratory Muscle Training (IKE+PGr)

EXPERIMENTAL

In the PGr program, exercises are planned under the supervision of a remote physiotherapist, with the telerehabilitation method 2 days a week and with a program to be done by the patient at home 1 day a week. The exercise program includes aerobics, resistance exercises, respiratory exercises and respiratory muscle strengthening training with a resistive thereshold inspiratory muscle strengthening device, and patients are followed for 3 months.

Device: Resistive threshold inspiratory muscle training device

Control Group (KGr)

OTHER

The KGr group will consist of women and men aged between 18-65, who have signed the informed consent form regarding the study, have a BMI \<30, are non-smokers, have no known systemic disease, and have FEV1\>80, and are age and gender matched to the exercise groups.

Genetic: No intervention

Interventions

In the other arm of the study, respiratory muscle training is performed in addition to the "standard pulmonary rehabilitation program." Respiratory muscle strengthening training is performed with a resistive thereshold inspiratory muscle strengthening device. The exercise is performed at an intensity of 30% of the maximum inspiratory pressure determined by mouth pressure measurement. The exercise is performed in 7 sets, with 2 minutes of work and 1 minute break for a total of 21 minutes.

Pulmonary Rehabilitation Group with Inspiratory Muscle Training (IKE+PGr)

Patients are asked to perform thoracic, diaphragmatic breathing, and lower basal breathing exercises with 10 repetitions. Then, strengthening exercises are performed on the major muscle groups of the upper and lower extremities. In accordance with the resistance training program in the ATS/ERS guidelines for pulmonary rehabilitation, two to four sets of 6-12 repetitions are performed with intensities ranging from 50% to 85% of one maximum repetition, two to three times a week. During the exercises, the patient is questioned about their fatigue and dyspnea levels using the Borg scale, and breaks are given when necessary. The aerobic exercise program is performed as a 12-week, 3-day-a-week self-walking exercise. The walking program is performed in the form of walking on flat ground at 60% workload, based on the data obtained from the 6-minute walking test result (land-based walking).

Pulmonary Rehabilitation Group (PGr)

Peripheral blood samples will be taken once from the participants in the control group and no other intervention will be performed.

Control Group (KGr)

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being between the ages of 18 and 75,
  • Being diagnosed with severe persistent asthma by a chest physician in accordance with the Global Initiative for Asthma (GINA) guideline criteria,
  • Patients with type 2 inflammation markers. According to the accepted standard; Peripheral eosinophils ≥150/µL and/or induced sputum eosinophils ≥2% - Airway hyperresponsiveness (PC20 methacholine \< 8 mg/mL) and/or bronchodilator response (\>12% or 200 mL improvement in % predicted FEV1 following 400 mg salbutamol inhalation)

You may not qualify if:

  • Having had a recent (within the last month) respiratory tract infection,
  • Having a smoking history of over 10 packs/years or having a smoking history within 6 months of quitting smoking,
  • Having received oral corticosteroid treatment within the last 4 weeks,
  • Having a Body Mass Index \>30,
  • Eosinophilic Granulomatosis with Polyangiitis (EGPA) and Allergic Bronchopulmonary Aspergillosis (ABPA),
  • Vasculitis,
  • History of malignancy,
  • Pregnancy,
  • Presence of a musculoskeletal, neurological or cardiac disease that would prevent exercise.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Health Sciences

Istanbul, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Motor ActivityAsthma

Condition Hierarchy (Ancestors)

BehaviorBronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Study Officials

  • Esra PEHLİVAN, Assoc. Prof.

    Saglik Bilimleri Universitesi

    STUDY CHAIR
  • Erdoğan ÇETİNKAYA, Prof. Dr.

    Yedikule Chest Diseases And Thoracic Surgery Training And Research Hospital

    STUDY DIRECTOR
  • Fulya Senem KARAAHMETOGLU, PhD (c)

    Saglik Bilimleri Universitesi

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

December 13, 2024

First Posted

January 15, 2025

Study Start

July 13, 2023

Primary Completion

December 1, 2024

Study Completion

July 30, 2025

Last Updated

February 4, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations