Low blood creatinine as a sign of longer ventilator use and a target for creatine supplements

Low Serum Creatinine as a Predictor of Prolonged Mechanical Ventilation and Weaning Failure

Not applicable Interventional University Hospital Ostrava · NCT07177183

This project will test whether a low serum creatinine on admission predicts a longer need for mechanical ventilation and whether giving creatine supplements to post-ICU patients with low creatinine can shorten time on the ventilator.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment492 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital Ostrava Academic / other
Locations2 sites (Brno and 1 other locations)
Trial IDNCT07177183 on ClinicalTrials.gov

What this trial studies

Researchers will measure serum creatinine at admission to post-ICU care units and identify patients with subnormal values. Patients with low creatinine will be allocated to receive oral creatine supplementation, a placebo, or no intervention and followed for duration of ventilatory support and weaning outcomes. Key exclusions include chronic kidney or liver disease, supranormal creatinine, patients unlikely to be weaned, or those in palliative care. The primary focus is on whether admission creatinine predicts prolonged mechanical ventilation and whether creatine intake shortens ventilation time and improves weaning success.

Who should consider this trial

Good fit: Patients admitted to post-ICU care units at the participating Chronicare locations who have subnormal serum creatinine on admission and do not have chronic liver or kidney disease are the ideal candidates.

Not a fit: Patients with advanced malignancy, a survival prognosis under three months, chronic kidney or liver disease, supranormal creatinine, those unlikely to be weaned, or patients in palliative care are unlikely to benefit from the interventions tested.

Why it matters

Potential benefit: If successful, the approach could help identify patients at risk of prolonged ventilation and shorten ventilator time using a low-cost supplement.

How similar studies have performed: Prior work links serum creatinine to muscle mass and there is limited evidence on creatine supplementation in critical illness, so the predictive idea has supportive rationale but the supplementation approach is relatively novel in this setting.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients \<18 years of age
* Patients admitted to post-ICU care units at Chronicare Group a.s. in the Czech Republic within 12 months

Exclusion Criteria:

* Patients who are unlikely to be weaned from ventilatory support.
* Patients in palliative care or with a survival probability of \<3 months
* Patients with advanced malignancy
* Patients with a history of chronic kidney disease
* Patients with a history of chronic liver disease
* Patients with supranormal serum creatinine on admission to the post-ICU care unit
* Patients who refused to sign the Informed Consent with participation in the study.

Where this trial is running

Brno and 1 other locations

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 Prolonged Mechanical VentilationCritical IllnessProlonged mechanical ventilationCritical illnessCreatinineCreatine supplementation
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.