Skip to content

Trial of Antiseptic Irrigation for Pleural Infection

IrRigation of the INfected Pleural Space With antiSEptic Solution (RINSE) - a Proof of Concept Study

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05546762
Acronym
RINSE
Enrollment
22
Registered
2022-09-21
Start date
2022-09-19
Completion date
2024-05-01
Last updated
2026-06-30

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

Conditions

Empyema, Pleural

Brief summary

Pleural antiseptic irrigation (PAI) is used in conjunction with open drainage for treating adults with chronic post-thoracotomy empyema. The antiseptic povidone-iodine can safely be instilled into the pleural cavity for the purpose of pleurodesis and has recently been described for pleural irrigation in the acute management of paediatric pleural infection with good outcomes. A recent case report demonstrated the safe use of povidone-iodine pleural irrigation in a patient with complex pleural empyema with successful medical management. In a previous pilot study, antiseptic irrigation led to less referral to surgery and shorter length of hospital stay in comparison to no irrigation. This study aims to investigate the effect of antiseptic pleural irrigation (using povidone iodine) on the inflammatory response in adults patients with pleural infection in comparison to irrigation with normal saline alone. A reduction in the systemic inflammatory response can be inferred to correlate with reduction in the infection burden in the pleural space.

Interventions

Pleural irrigation with 2% povidone iodine

DRUGNormal saline

Pleural irrigation with normal saline

Sponsors

Alexandria University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Adults (18 year-old or more) * Pleural infection diagnosed by: the presence of pus in the pleural space, OR any of the following in the setting of acute lower-respiratory tract infection symptoms: pleural fluid PH\<7.2 or pleural fluid glucose \<40 mg/dL, positive gram stain or culture from pleural fluid * Predominantly unilocular pleural collection treated with chest tube drainage * Acute response at presentation as evidenced by fever (\>37.80C) and/or blood leucocytosis (\>11X103/mm3) and/or high serum C-reactive protein, CRP (\>50 mg/L)

Exclusion criteria

* Known or suspected thyroid disease * Allergy to iodine * Persistent large collection on follow-up imaging 24-48 post tube insertion that is deemed to require additional interventions (e.g., another drainage procedure, intrapleural fibrinolytic) * Evidence or suspicion of broncho-pleural fistula (suspected when there is air-fluid level without previous intervention, or if the participant is coughing large volume of purulent sputum that is physically similar to drained pleural fluid) * Tuberculous, post-operative or post-haemothorax pleural infections

Design outcomes

Primary

MeasureTime frameDescription
Percentage change in inflammatory markers before and after irrigationInitial levels to be measured 12 to 48 hours post tube insertion and follow up levels 12 to 24 hours post last dose of irrigationThe percentage by which inflammatory marker (CRP and/or procalcitonin) decrease after completing all irrigations in comparison to the pre-irrigation inflammatory markers level

Secondary

MeasureTime frameDescription
Time in days to chest tube removalAt the time of chest tube removal (up to 6 weeks)The time in days from the first irrigation to the chest tube removal
Total length of hospital stay in daysAt the point of deciding a patient is medically fit for discharge (assessed up to 6 weeks)Duration of hospital stay from admission until a patient is declared medically fit for discharge
Percentage of radiological clearance between baseline and discharge chest X-raysbaseline and discharge (up to week 6)Percentage of radiological clearance of pleural abnormalities between baseline and discharge chest X-rays using a computer software
Incidence of medical treatment failureAt discharge from the hospital or referral to another department (assessed up to week 6)Number of patients who fail medical treatment (referral to surgery, further pleural procedures or death)
Incidence of adverse eventsAdverse events will be recognised if they appear within 6 hours of a given irrigation procedureNumber of patients with different types of adverse events

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 1, 2026