Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 to 64

Inhaled acetylcysteine to prevent pneumonia in adults on mechanical ventilation

Official title: The Role of N-Acetylcysteine Inhalation in Critically Ill Mechanically Ventilated Patients

Run by Cairo University · NCT07409727 · Data updated 2026-11-12

This trial tests whether breathing in acetylcysteine instead of saline can lower the chance of getting ventilator-associated pneumonia or delay when it starts in adults on a ventilator.

More Community-acquired Pneumonia trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 64 Years
SexAll
Enrollment80 (estimated)
SponsorCairo University
Academic / other
Locations1 site (Cairo)
StatusRecruiting
StartedMarch 1, 2026
Main results expectedMarch 2028
Study endsJune 1, 2028
Registry record updatedJuly 10, 2026
Trial IDNCT07409727 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adult (18–64) critically ill patients who are intubated, expected to require mechanical ventilation for more than 48 hours, and whose next of kin can provide consent are the intended participants.

Probably not a fit

Patients already on long-term NAC, those who are pregnant, immunocompromised, brain dead, hemodynamically unstable (MAP <60 mmHg despite support), or ventilated at another hospital are excluded and unlikely to benefit from this intervention.

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

What this trial studies

Critically ill adults who are intubated and expected to need mechanical ventilation for more than 48 hours will receive inhaled acetylcysteine or inhaled normal saline while in the ICU. The trial monitors whether acetylcysteine changes the incidence of ventilator-associated pneumonia and the time until pneumonia develops. Key exclusions include patients already on long-term NAC, those who are pregnant, immunocompromised, brain dead, or hemodynamically unstable. Outcomes include infection rates and timing of ventilator-associated complications during the ICU stay.

Why it matters

Potential benefit: If successful, inhaled acetylcysteine could reduce ventilator-associated pneumonia and shorten time on the ventilator and in the ICU.

How similar studies have gone: Prior small trials and observational studies of inhaled mucolytics including N-acetylcysteine have shown mixed and limited evidence for preventing ventilator-associated pneumonia, so effectiveness is not yet established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Aged 18-64 years, either male or female.
2. Critically ill patients who have undergone intubation and are on mechanical ventilation.
3. Expected duration of mechanical ventilation of more than 48 hours.
4. Provided consent to participate in this clinical trial by next of kin.

Exclusion Criteria:

1. Patients currently on long-term NAC treatment.
2. Confirmed brain death.
3. Recent chest infection.
4. Immunocompromised patients on immunosuppressive medication.
5. Patients mechanically ventilated in another hospital.
6. Pregnant women.
7. Mean arterial pressure (MAP) \<60 mmHg despite adequate resuscitation and vasopressor therapy at the time of randomization.
8. Known intolerance or hypersensitivity to study medication.
9. Presence of a condition or abnormality that would compromise the quality of the data.

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Where it's running

  • Cairo University Hospitals
    Cairo, Egypt
    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.
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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.