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NCT04980820
Changes in Capillary Carbon Dioxide Partial Pressure (pCO2) While Wearing FFP2 / FFP3 Masks
NA trial testing No mask in Hypercapnia in 200 participants. Completed in 28 February 2022.
28 February 2022
Quick facts
| Lead sponsor | Medical University of Vienna |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | non randomized |
| Design | crossover |
| Masking | none |
| Primary purpose | diagnostic |
| Enrollment | 200 |
| Start date | 19 July 2021 |
| Primary completion | 28 February 2022 |
| Estimated completion | 28 February 2022 |
| Sites | 1 location across Austria |
Drugs / interventions tested
- No mask
- Filtering face mask 2 (FFP2)
- Filtering face mask 3 (FFP3)
Conditions studied
- Hypercapnia — all drugs for Hypercapnia →
Sponsor
Medical University of Vienna
Who can join
18 and older, any sex, with Hypercapnia. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
The aim of this study is to determine whether there are any changes in the carbon dioxide partial pressure in medical staff while wearing a filtering face piece (FFP) 2 or FFP3 mask. Furthermore, changes in the capillary oxygen partial pressure, the subjective respiratory effort and the breathing rate are measured.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Capillary carbon dioxide tension increases in hospital staff wearing filtering facepiece masks: a prospective crossover study.
Roeder G, Bilir A, Graf A, Baron DM. · · 2023 · cited 1× · PMID 37404843 · DOI 10.1183/23120541.00186-2023
Verify or expand the search:
- PubMed search for NCT04980820
- 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 NCT04980820 (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 Vienna
- Last refreshed: 19 December 2022
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/NCT04980820.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing