Accuracy of Accuhaler Tester, Ellipta Tester and Turbutester in Patients With Chronic Obstructive Pulmonary Disease

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06346678

Enrollment

Registered

2024-04-04

Start date

2024-04-01

Completion date

2024-11-15

Last updated

2026-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Obstructive Pulmonary Disease

Keywords

Chronic obstructive pulmonary disease, COPD, Accuhaler tester, Ellipta tester, Turbutester, Peak inspiratory flow rate

Brief summary

The goal of this observational study is to investigate the accuracy of Accuhaler tester, Ellipta tester and Turbutester in patients with chronic obstructive pulmonary disease (COPD). The main question it aims to answer is: • Do Accuhaler tester, Ellipta tester, and Turbutester demonstrate comparable accuracy to the In-check DIAL for assessing inspiratory inhalation force in COPD patients?

Detailed description

This study is a cross-sectional study. COPD patients aged 40 years or older will be included. Peak inspiratory flow rate (PIFR) will be assessed using In-check DIAL as the standard tool. PIFR will be tested in each patient using Accuhaler tester, Ellipta tester and Turbutester.

Interventions

OTHERAccuhaler tester

Patients will perform testing with Accuhaler tester, Ellipta tester and Turbutester.

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

40 Years to No maximum

Healthy volunteers

Inclusion criteria

* COPD diagnosis with confirmed by post-bronchodilator forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) \<0.7 * Age 40 years or older * Smoking history 10 pack-years or more

Exclusion criteria

* COPD exacerbation within 3 months * Oral or intravenous corticosteroid treatment within 6 weeks * Inability to perform assessment of peak inspiratory flow rate * Asthma * Tracheostomy, invasive or noninvasive mechanical ventilation

Design outcomes

Primary

Measure	Time frame	Description
Accuracy of Accuhaler tester	At day 1 of the study	Percentage
Accuracy of Ellipta tester	At day 1 of the study	Percentage
Accuracy of Turbutester	At day 1 of the study	Percentage

Secondary

Measure	Time frame	Description
Prevalence of suboptimal peak inspiratory flow rate	At day 1 of the study	Percentage
Prevalence of insufficient peak inspiratory flow rate	At day 1 of the study	Percentage

Countries

Thailand

Contacts

PRINCIPAL_INVESTIGATORNarongkorn Saiphoklang, MD

Thammasat University Faculty of Medicine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026