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NCT04203446
Factors Influencing on Correctness of Inhalation Technique.
trial testing Assessment of correctness of inhaling technique in Asthma in 180 participants. Completed in 30 January 2023.
15 December 2022
Quick facts
| Lead sponsor | Medical University of Warsaw |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 180 |
| Start date | 30 October 2019 |
| Primary completion | 15 December 2022 |
| Estimated completion | 30 January 2023 |
| Sites | 1 location across Poland |
Drugs / interventions tested
- Assessment of correctness of inhaling technique
Conditions studied
Sponsor
Medical University of Warsaw
Who can join
Adults 18 to 85, any sex, with Asthma or COPD. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Asthma and COPD are common chronic diseases of respiratory system. The correct use of inhalers is crucial in terms of efficacy of the treatment, however both asthma and COPD patients quite frequently misuse the inhalers. The objective of this study is to determine the factors influencing the number of inhalation errors committed by asthma and COPD patients when using the inhalers. In included patients the inhalation technique will be evaluated (by both list of inhalation errors and 4 point scale of proper inhaling) by two observers and the below information will be collected: * general demographic information and education level * information concerning time of diagnosis, the previous course of disease, smoking history, number of previous inhalation techniques training, the sources of information about the inhalation technique and adherence to therapy * Asthma Control Test or COPD Assessment Test (respectively for asthma and COPD) * assessment of quality of life (St. George's Questionnaire for COPD and Asthma Quality of Life Questionnaire for asthma) * cognitive functions assessment using Mini-Mental State Examination * the simplified assessment of vision impairments * the results of spirometry
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Expectations Versus Reality in Inhalation Technique-A Case-Control Study of Inhalation Technique in Patients with Asthma or COPD.
Domagała-Mańczyk I, Miszczuk-Cieśla M, Maskey-Warzęchowska M, Zielecki M, et al · · 2025 · PMID 41095928 · DOI 10.3390/jcm14196848
Verify or expand the search:
- PubMed search for NCT04203446
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04203446 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Medical University of Warsaw
- Last refreshed: 21 February 2023
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04203446.
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