NCT07402850

Brief Summary

Chronic Obstructive Pulmonary Disease (COPD) is a long-term lung condition that causes breathing difficulty, cough, and sputum production. Airway clearance techniques are commonly used to help reduce symptoms and improve breathing in patients with COPD. This study compared two airway clearance methods-oscillating positive expiratory pressure (OPEP) therapy and autogenic drainage-to determine which method is more effective in improving lung function, sputum clearance, shortness of breath, and quality of life in patients with COPD. Participants were divided into two groups and received either OPEP therapy or autogenic drainage for four weeks. Outcomes were measured at the beginning of the study and again after completion of the intervention. The findings of this study aim to support evidence-based physiotherapy management for patients with COPD.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
58

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2025

Shorter than P25 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

May 5, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 8, 2025

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

September 12, 2025

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

January 26, 2026

Completed
16 days until next milestone

First Posted

Study publicly available on registry

February 11, 2026

Completed
Last Updated

February 11, 2026

Status Verified

January 1, 2026

Enrollment Period

3 months

First QC Date

January 26, 2026

Last Update Submit

February 3, 2026

Conditions

Keywords

COPDOscillating Positive Expiratory PressureAutogenic DrainagePhysiotherapyPulmonary RehabilitationAirway Clearance Techniques

Outcome Measures

Primary Outcomes (1)

  • Change in Forced Expiratory Volume in 1 Second (FEV₁ % Predicted)

    Pulmonary function was assessed using spirometry by measuring forced expiratory volume in one second (FEV₁), expressed as percentage of the predicted value, in patients with Chronic Obstructive Pulmonary Disease.

    Baseline and at 4 weeks

Secondary Outcomes (3)

  • Change in Sputum Clearance as Measured by the Breathlessness, Cough, and Sputum Scale (BCSS)

    Baseline and at 4 weeks

  • Change in Dyspnea Severity as Measured by the Modified Borg Dyspnea Scale

    Baseline and at 4 weeks

  • Change in Health-Related Quality of Life as Measured by the COPD Assessment Test (CAT)

    Baseline and at 4 weeks

Study Arms (2)

Oscillating Positive Expiratory Pressure Therapy Group

EXPERIMENTAL

Participants in this group received oscillating positive expiratory pressure therapy as an airway clearance technique for four weeks.

Device: Oscillating Positive Expiratory Pressure Therapy

Autogenic Drainage Group

ACTIVE COMPARATOR

Participants in this group received autogenic drainage as an airway clearance technique for four weeks.

Behavioral: Autogenic Drainage

Interventions

Oscillating positive expiratory pressure therapy was administered using a handheld device to facilitate airway clearance by providing expiratory resistance and oscillations during exhalation. The intervention was applied for four weeks.

Oscillating Positive Expiratory Pressure Therapy Group

Autogenic drainage is a breathing technique involving controlled breathing at different lung volumes to mobilize and clear bronchial secretions. Participants performed autogenic drainage sessions for four weeks.

Autogenic Drainage Group

Eligibility Criteria

Age35 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age between 35 and 50 years
  • Both genders
  • Participants must have a confirmed diagnosis of Chronic Obstructive Pulmonary Disease (COPD) based on the GOLD 2023 guidelines
  • Clinically stable
  • History of Sputum Culture

You may not qualify if:

  • Acute exacerbation of COPD
  • Severe cardiovascular, neurological, or musculoskeletal disorders
  • Recent thoracic or abdominal surgery
  • Presence of other significant respiratory diseases
  • Unwillingness to participate or inability to comply with the study protocol

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University

Lahore, Punjab Province, 54000, Pakistan

Location

Related Publications (8)

  • Bridges, C., Graham-Wollard, L., Morris, H., Annandale, J., & Lewis, K. (2023). S56 A feasibility randomised control trial (RCT) of OPEP verses active cycle of breathing technique (ACBT) in people with chronic obstructive pulmonary disease (COPD). In: BMJ Publishing Group Ltd.

    BACKGROUND
  • Boers, E., Barrett, M., Su, J. G., Benjafield, A. V., Sinha, S., Kaye, L., Zar, H. J., Vuong, V., Tellez, D., Gondalia, R., Rice, M. B., Nunez, C. M., Wedzicha, J. A., & Malhotra, A. (2023). Global Burden of Chronic Obstructive Pulmonary Disease Through 2050. JAMA Netw Open, 6(12), e2346598. https://doi.org/10.1001/jamanetworkopen.2023.46598

    BACKGROUND
  • Bishop, K. L., & Malone, D. J. (2024). Pulmonary Diseases and Disorders. In Acute Care Physical Therapy (pp. 245-310). Routledge.

    BACKGROUND
  • Belli, S., Prince, I., Savio, G., Paracchini, E., Cattaneo, D., Bianchi, M., Masocco, F., Bellanti, M. T., & Balbi, B. (2021). Airway clearance techniques: the right choice for the right patient. Frontiers in medicine, 8, 544826.

    BACKGROUND
  • Awokola, B., Amusa, G., Jewell, C., Okello, G., Stobrink, M., Finney, L., Mohammed, N., Erhart, A., & Mortimer, K. (2022). Chronic obstructive pulmonary disease in sub-Saharan Africa. The International Journal of Tuberculosis and Lung Disease, 26(3), 232-242.

    BACKGROUND
  • Alruwaili, A. T. S., Alsirhani, A. F., khlaif Alrwili, A., Aldaghmi, M. T. A., Alharbi, S. E. M., & Aldhafeeri, R. Z. (2024). NURSING, PHYSICAL THERAPY, AND RESPIRATORY CARE IN ENHANCING PHYSICAL AND PSYCHOLOGICAL REHABILITATION FOR PATIENTS WITH RESPIRATORY DISEASES. Gland Surgery, 9(2).

    BACKGROUND
  • Alghamdi, S. M., Alsulayyim, A. S., Alasmari, A. M., Philip, K. E., Buttery, S. C., Banya, W. A., Polkey, M. I., Birring, S. S., & Hopkinson, N. S. (2023). Oscillatory positive expiratory pressure therapy in COPD (O-COPD): a randomised controlled trial. Thorax, 78(2), 136-143.

    BACKGROUND
  • Adeloye, D., Song, P., Zhu, Y., Campbell, H., Sheikh, A., & Rudan, I. (2022). Global, regional, and national prevalence of, and risk factors for, chronic obstructive pulmonary disease (COPD) in 2019: a systematic review and modelling analysis. The Lancet Respiratory Medicine, 10(5), 447-458.

    BACKGROUND

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

  • Adnan Hashim, DPT

    Department of Physical Therapy, The University of Lahore

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Outcome assessors were blinded to group allocation to minimize assessment bias. Participants and care providers were not blinded due to the nature of the interventions.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants were allocated into two parallel groups to receive either oscillating positive expiratory pressure therapy or autogenic drainage for a four-week intervention period.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Doctor of Physical Therapy Student

Study Record Dates

First Submitted

January 26, 2026

First Posted

February 11, 2026

Study Start

May 5, 2025

Primary Completion

August 8, 2025

Study Completion

September 12, 2025

Last Updated

February 11, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared because this study was conducted as an academic research project. The informed consent obtained from participants did not include provisions for public data sharing, and the dataset contains sensitive personal health information. Data will be stored securely and used only for academic and research purposes in accordance with institutional ethics approval.

Locations