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The Effect of Standard vs. Shorter Filter Lifespan During Continuous Renal Replacement Therapy

The Effect of Standard vs. Shorter Filter Lifespan During Continuous Renal Replacement Therapy in Critically Ill Patients With Acute Kidney Injury - a Feasibility Randomized Controlled Trial

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07630220
Acronym
SPECIAL
Enrollment
100
Registered
2026-06-05
Start date
2026-06-01
Completion date
2028-06-01
Last updated
2026-06-15

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

Conditions

Acute Kidney Injury

Keywords

Continuous Renal Replacement Therapy (CRRT), Infection, filter change, critical illness

Brief summary

This study aims to investigate shorter vs. standard filter lifespans in critically ill patients receiving continuous renal replacement therapy (CRRT) for acute kidney injury (AKI). The aim of this trial is to reliably implement,scheduled filter changes and to investigate whether shorter filter lifetime is associated with a lower incidence in rate of new infections.

Detailed description

Own data of patients under standard care indicated that a longer filter lifetime in CRRT is associated with an increased rate of new infections. The aim of this study is to demonstrate that a protocolized filter-change strategy can be reliably implemented in critically ill patients and a high protocol adherence can be achieved. The secondary aim is to investigate whether a shorter filter-change strategy is be associated with a lower incidence of newly acquired infections.

Interventions

OTHERtime span of filter change

The time span of the filter change during continuous renal replacement therapy will be specified

Sponsors

Universität Münster
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

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

Inclusion criteria

1. Adult ≥ 18 years 2. Critically ill patients with severe AKI consistent with KDIGO stage 3 and an absolute indication for CRRT 3. Written consent form from the patient or legal representative or authorized representative or emergency inclusion

Exclusion criteria

1. End-stage kidney disease or chronic dialysis dependence 2. Chronic kidney disease with eGFR\<20ml/min/1.73 m² 3. Prior kidney transplant 4. Prior renal replacement therapy during the index admission before randomization 5. Glomerulonephritis, interstitial nephritis, vasculitis 6. Patients on immunosuppression (above the cushing threshold) 7. Patients with chronic inflammatory diseases (e.g. arthritis, HIV with a CD4 count of \< 0.05 x 10E/l) 8. Do-not resuscitate order 9. Persons with any kind of dependency on the investigator or employed by the sponsor 10. Patients participating in an interventional study involving measures to influence the immune system

Design outcomes

Primary

MeasureTime frameDescription
Mean filter lifespan per patientFrom start of CRRT to end of CRRT or at day 30 after randomization, whatever occurs firstComparison of mean filter lifespans between study groups
Protocol adherence as documented filter change within the specified periodFrom start of CRRT to end of CRRT or at day 30 after randomization, whatever occurs firstProportion of protocol adherent patients, defined as patients with mean filter lifespan within the pre-specified time window in each arm (intervention group: 36±3hours; control group: 48-72hours

Secondary

MeasureTime frameDescription
New intensive care unit (ICU)-associated acquired infection up to day 30From start of CRRT to end of CRRT or at day 30 after randomization, whatever occurs firstRate of new ICU-acquired infections, defined as new infection in patients with pre-existing infection but with another pathogen than baseline or without baseline infection. All infections need to be culture proven. Only the first infection per patient will be considered

Countries

Germany

Contacts

CONTACTAlexander Zarbock, MD
zarbock@uni-muenster.de+49-251-8347255
CONTACTNadja Schöne, MD
nadja.schoene@ukmuenster.de+49-8347262
STUDY_CHAIRAlexander Zarbock, MD

University Hospital Muenster, Dept. of Anesthesiology, Intensive Care Medicine and Pain Therapy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 16, 2026