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NCT02695368: EPOS
The Effect of Plasma-air-filtration on the Incidence of Surgical Site Infections in Orthopaedic Surgery
NA trial testing Novaerus NV800 on in Orthopaedic Surgery (30 Minutes or Longer) in 45,000 participants. Completed in 31 December 2021.
31 December 2021
Quick facts
| Lead sponsor | Karolinska Institutet |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | triple |
| Primary purpose | prevention |
| Enrollment | 45,000 |
| Start date | 10 April 2017 |
| Primary completion | 31 December 2021 |
| Estimated completion | 31 December 2021 |
| Sites | 1 location across Sweden |
Drugs / interventions tested
- Novaerus NV800 on
- Novaerus NV800 off
- Novaerus NV800 on or off
Conditions studied
- Orthopaedic Surgery (30 Minutes or Longer) — all drugs for Orthopaedic Surgery (30 Minutes or Longer) →
Sponsor
Karolinska Institutet
Who can join
Eligibility, any sex, with Orthopaedic Surgery (30 Minutes or Longer). Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
The study is a multicenter, double-blind, randomized, controlled trial conducted at six major university and teaching hospitals with a catchment population of approximately 2 million. In the current study it has been hypothesized that a non-invasive air cleaner utilizing a plasma chamber can significantly reduce the incidence of surgical site infections (SSIs).
Publications & conference data
3 peer-reviewed publications reference this trial (live from Europe PMC):
-
Gas Plasma Technology-An Asset to Healthcare During Viral Pandemics Such as the COVID-19 Crisis?
Bekeschus S, Kramer A, Suffredini E, von Woedtke T, et al · · 2020 · cited 15× · PMID 34192214 · DOI 10.1109/trpms.2020.3002658 -
EPOS trial: the effect of air filtration through a plasma chamber on the incidence of surgical site infection in orthopaedic surgery: a study protocol of a randomised, double-blind, placebo-controlled trial.
Persson A, Atroshi I, Tyszkiewicz T, Hailer N, et al · · 2022 · cited 3× · PMID 35115346 · DOI 10.1136/bmjopen-2020-047500 -
Effect of Plasma Air Purifiers on Infection Rates in Orthopedic Surgery.
Persson A, Atroshi I, Tyszkiewicz T, Hailer NP, et al · · 2025 · PMID 40130977 · DOI 10.1056/evidoa2400289
Verify or expand the search:
- PubMed search for NCT02695368
- 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 NCT02695368 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 9 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 Karolinska Institutet
- Last refreshed: 24 June 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/NCT02695368.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing