Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Intrapulmonary percussion ventilation added to breathing support for adults with pneumonia on a ventilator

Official title: Efficacy and Safety of Intrapulmonary Percussive Ventilation in Patients With Pulmonary Infection Receiving Invasive Mechanical Ventilation Assessed by Electrical Impedance Tomography: a Randomized Controlled Trial

Run by Zhongnan Hospital · NCT07453966 · Data updated 2026-11-12

This trial will test whether adding intrapulmonary percussion ventilation (IPV) to usual airway clearance shortens time on a ventilator and improves lung ventilation in adults with pneumonia who are invasively mechanically ventilated.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment110 (estimated)
SponsorZhongnan Hospital
Academic / other
Locations1 site (Wuhan, Hubei)
StatusRecruiting
StartedMarch 6, 2026
Main results expectedMarch 1, 2027
Study endsMay 1, 2027
Registry record updatedAugust 12, 2026
Trial IDNCT07453966 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18 years) with a clinical diagnosis of pulmonary infection who are invasively mechanically ventilated with PaO2/FiO2 ≤ 300 and expected to need ventilation for at least 48 hours, with consent provided by a legal representative, are ideal candidates.

Probably not a fit

Patients with severe hemodynamic instability, markedly elevated intracranial pressure, or other contraindications to IPV are unlikely to benefit and are excluded from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults with pneumonia who are invasively mechanically ventilated and have an oxygenation index (PaO2/FiO2) ≤ 300 and are expected to require ventilation ≥ 48 hours will receive either standard airway clearance alone or standard care plus intrapulmonary percussive ventilation (IPV). The protocol includes serial electrical impedance tomography (EIT) monitoring at predefined time points to track regional and global lung ventilation and routine clinical and ventilator parameter assessments. Key outcomes include duration of invasive mechanical ventilation, changes in oxygenation and lung mechanics, pulmonary infection scores, and safety signals. Safety monitoring will pay particular attention to hemodynamic stability and intracranial pressure during IPV.

Why it matters

Potential benefit: If successful, adding IPV could shorten time on mechanical ventilation and improve oxygenation and regional lung ventilation, potentially reducing ICU complications and length of stay.

How similar studies have gone: IPV has been used for airway clearance in other settings, but randomized evidence in invasively ventilated pneumonia patients is limited, so applying IPV with serial EIT monitoring in this population is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥ 18 years;
2. Meeting the diagnostic criteria for pulmonary infection, defined as follows: meeting the diagnostic criteria for hospital-acquired pneumonia (HAP) or ventilator-associated pneumonia (VAP) according to the Chinese Guidelines for the Diagnosis and Treatment of Hospital-Acquired Pneumonia and Ventilator-Associated Pneumonia in Adults (2018 edition), or meeting the diagnostic criteria for community-acquired pneumonia (CAP) according to the Chinese Guidelines for the Diagnosis and Treatment of Community-Acquired Pneumonia in Adults (2016 edition);
3. Oxygenation index (PaO₂/FiO₂) ≤ 300;
4. Currently receiving invasive mechanical ventilation, with no planned liberation from invasive mechanical ventilation within the next 24 hours;
5. Receiving analgesia and sedation;
6. Written informed consent provided by the patient's family member or legally authorized representative.

Exclusion Criteria:

1. Presence of severe hemodynamic instability (norepinephrine dose \> 0.5 μg/kg/min);
2. Markedly elevated intracranial pressure (\> 25 mmHg) or a condition requiring strict intracranial pressure control;
3. Severe pulmonary bullae, untreated tension pneumothorax or undrained mediastinal emphysema;
4. Unstable chest wall, flail chest, recent thoracic or airway surgery, or severe thoracic spine injury;
5. Active massive hemoptysis;
6. Severe bronchospasm or inability to tolerate fluctuations in airway pressure;
7. Inability to place the EIT chest belt, such as open thoracic surgical wounds or skin lesions at the belt placement site;
8. Receiving extracorporeal membrane oxygenation (ECMO);
9. Acute exacerbation of chronic obstructive pulmonary disease as the primary reason for the current episode of invasive mechanical ventilation;
10. Expected death within 24 hours, or a decision already made to withhold or withdraw life-sustaining treatment;
11. Pregnancy or breastfeeding;
12. Concurrent participation in another clinical trial.

Where it's running

  • Zhongnan Hospital of Wuhan University
    Wuhan, Hubei, China
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.