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CompletedNCT04718922CHX_EBUSUpdated Feb 15, 2022

Chlorhexidine Mouthrinse Before EBUS-TBNA

A Phase 4 interventional study of Chlorhexidine Gluconate 0.12 % Mouthwash in Endobronchial Ultrasound, sponsored by Seoul National University Hospital. Completed at 1 site in Korea, Republic of. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2022-02-15.

Sponsored by Seoul National University Hospital · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
112
Allocation
Randomized
Ages
19 Years and older
Sex
All
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Study summary

The purpose of this study is to investigate whether chlorhexidine mouthrinse is effective in preventing microbial contamination during endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

Read the detailed description

EBUS-TBNA using the convex probe is a standard of care for the assessment of mediastinal and hilar lymphadenopathy. Although EBUS-TBNA is a minimally invasive procedure, rare but serious infectious complications such as pneumonia, lung abscess, empyema, mediastinal adenitis/abscess, mediastinitis, pericarditis, and sepsis were reported. EBUS-scope might be contaminated with oropharyngeal commensal bacteria while passing the oropharyngeal airway during EBUS-TBNA. Contamination of punctured lymph nodes by oropharyngeal commensal bacteria can cause severe infections.

Chlorhexidine gluconate is an antimicrobial agent that has a broad antibacterial activity including both gram-positive and negative bacteria. Chlorhexidine has been widely used for surgical scrub, skin disinfection, and mouthrinse. We, therefore, designed a phase 4, single-center, randomized, controlled clinical trial to investigate whether chlorhexidine mouthrinse is effective in preventing microbial contamination during EBUS-TBNA.

02

Conditions studied

  • Endobronchial Ultrasound

Keywords

  • Endobronchial ultrasound
  • Transbronchial needle aspiration
  • Chlorhexidine
  • Infection
  • Complication
03

In context

Lead sponsor

Seoul National University Hospital is the lead sponsor of 1,860 studies on the registry; 275 are open to participants now.

Of its 12 completed or terminated interventional studies of FDA-regulated products, 2 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • inpatients aged 19 years and older who are scheduled to undergo EBUS-TBNA using a convex probe

Exclusion criteria

Exclusion Criteria:

  • antiseptic mouthrinse within 7 days before inclusion;
  • active infection or antibiotic treatment within 7 days before inclusion;
  • immunocompromised;
  • trachemostomy status;
  • who have already undergone gastroscopy on the same day when EBUS- TBNA is scheduled to be administered
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Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Care provider, Investigator, Outcomes assessor)
Enrollment
112 participants (actual)

Study arms

  • Experimental
    Experimental Arm

    Mouthrinse with 100 ml 0.12% chlorhexidine for 1 min

    Drug: Chlorhexidine Gluconate 0.12 % Mouthwash

  • No intervention
    Control Arm

    No mouthrinse

Interventions

  • DrugChlorhexidine Gluconate 0.12 % Mouthwash

    Intervention with chlorhexidine mouthrinse will be performed approximately 10 min before the start of EBUS-TBNA

    Also known as: Hexamedine Sol.

06

What researchers measure

Primary outcomes

  1. Colony forming unit (CFU) counts of EBUS-TBNA needle wash solution in aerobic media

    Needle wash solution is obtained by instilling 5mL of sterile physiological saline into the puncture needle.

    Time frame: Needle wash solution is obtained immediately after termination of EBUS-TBNA

Secondary outcomes

  1. CFU counts of EBUS-TBNA needle wash solution in anaerobic media

    Needle wash solution is obtained by instilling 5mL of sterile physiological saline into the puncture needle.

    Time frame: Needle wash solution is obtained immediately after termination of EBUS-TBNA

  2. Fever

    Fever is defined as a temperature ≥37.8°C.

    Time frame: 24 hours after EBUS-TBNA

  3. Infectious complications

    Infectious complications include pneumonia, lung abscess, empyema, mediastinal adenitis/abscess, mediastinitis, pericarditis, and sepsis.

    Time frame: 4 weeks after EBUS-TBNA

07

Study locations

1 site
  • Seoul National University Hospital
    Seoul, 03080, Korea, Republic of
08

References and documents

Publications

  • Kim NY, Park JH, Park J, Kwak N, Choi SM, Park YS, Lee CH, Cho J. Effect of Chlorhexidine Mouthrinse on Prevention of Microbial Contamination during EBUS-TBNA: A Study Protocol for a Randomized Controlled Trial. Tuberc Respir Dis (Seoul). 2021 Oct;84(4):291-298. doi: 10.4046/trd.2021.0058. Epub 2021 Jun 24. PubMed 34162198 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 15, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04718922
Lead sponsor
Seoul National University Hospital
Responsible party
Jaeyoung Cho (Assistant Professor, Seoul National University Hospital) — Principal investigator
First posted
Jan 22, 2021
Start date
Jan 20, 2021
Primary completion
Jun 11, 2021
Completion
Dec 11, 2021
Last update
Feb 15, 2022

Study contacts

Jaeyoung Cho, MD
principal investigator · Seoul National University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2022. You cannot join it, but the record below documents what was studied.

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