Inhaled colistin to prevent pneumonia in ventilated patients

Colistin Methanesulfonate Sodium Inhalation for Prophylaxis of Ventilator-Associated Pneumonia (CIVAP): A Prospective, Multicentre, Double-Blind, Randomized, Placebo-Controlled Trial

Not applicable Interventional Qilu Hospital of Shandong University · NCT06834971

This study is testing if inhaled colistin can help prevent pneumonia in patients on ventilators who are at high risk for infections.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment508 (estimated)
Ages18 Years and up
SexAll
SponsorQilu Hospital of Shandong University Academic / other
Locations1 site (Jinan, Shandong)
Trial IDNCT06834971 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of inhaled colistin methanesulfonate sodium (CMS) in preventing ventilator-associated pneumonia (VAP) among patients on mechanical ventilation. It is a multicenter, double-blind, randomized, placebo-controlled trial that aims to administer a 3-day course of CMS to high-risk patients. The study focuses on patients who have been on mechanical ventilation for more than 48 hours and are at risk for multidrug-resistant bacterial infections. The trial seeks to determine if this intervention can significantly reduce the incidence of VAP, which is a serious complication in intensive care settings.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older who have been on mechanical ventilation for more than 48 hours and have high-risk factors for multidrug-resistant infections.

Not a fit: Patients who are suspected or confirmed to have ventilator-associated pneumonia at the time of inclusion will not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the incidence of ventilator-associated pneumonia, improving patient outcomes and reducing healthcare costs.

How similar studies have performed: Previous studies have indicated the effectiveness of colistin against multidrug-resistant organisms, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Participants will be enrolled if they meet the following criteria:

1. Age ≥18 years;
2. Mechanical ventilation for more than two consecutive days (48 hours);
3. Patient has high-risk factors for multidrug-resistant bacterial infections, which meet any of the following criteria:

(1)History of antibiotic exposure within 30 days; (2)Hospitalization time\>5 days (120 hours); (3)Septic shock; (4) ARDS; (5)Accept renal replacement therapy; (6)Previous colonization of multidrug-resistant bacteria; 4. Informed consent of the patient or a proxy was written.

Participants will be excluded in case of:

1. Suspected or confirmed VAP at the inclusion day;
2. Patient ventilated through an endotracheal tube for more than four consecutive days (96 hours);
3. Expected that endotracheal intubation will be removed within the next 24 hours;
4. Tracheostomy;
5. Allergy to CMS;
6. Patients has polymyxins medication history within 7 days or clinical indication for systemic CMS therapy at the inclusion day;
7. Chronic kidney failure with baseline glomerular filtration ≤30 mL/min or Stage 3 classification AKI (KDIGO) (excluding patients undergoing renal replacement therapy);
8. Expected survival time not exceeding 48 hours;
9. Pregnancy or breastfeeding period;
10. Patients previously included in this study or are using any inhaled antibiotics or are participating in other clinical studies within 30 days.

Where this trial is running

Jinan, Shandong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Ventilator-Associated Pneumoniacolistinpreventionnebulization
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.