ClinicalTrials.gg
Not yet recruitingNCT07630220SPECIALUpdated Jun 15, 2026

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

An interventional study of time span of filter change in Acute Kidney Injury, sponsored by Universität Münster. Not yet recruiting at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-15.

Sponsored by Universität Münster · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study 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.

Read the 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.

02

Conditions studied

  • Acute Kidney Injury

Keywords

  • Continuous Renal Replacement Therapy (CRRT)
  • Infection
  • filter change
  • critical illness
03

In context

Acute Kidney Injury

1,691 studies on the registry are indexed under Acute Kidney Injury; 395 are open to participants now.

This study's planned enrollment of 100 is close to the median of 100 across 817 interventional studies indexed under Acute Kidney Injury.

Browse Acute Kidney Injury studies →

Lead sponsor

Universität Münster is the lead sponsor of 30 studies on the registry; 19 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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

Exclusion Criteria:

  1. End-stage kidney disease or chronic dialysis dependence
  2. Chronic kidney disease with \<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 (above the cushing threshold)
  7. Patients with chronic inflammatory diseases (e.g. arthritis, with a 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
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

CD4 count

The number of CD4 cells, a type of white blood cell, in a given amount of blood. It is used to follow how well the immune system is doing in HIV.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    Early filter change

    Scheduled filter change during continuous renal replacement therapy at 36 ± 3 hours.

    Other: time span of filter change

  • Active comparator
    Standard of Care filter change

    Standard of care with scheduled filter change during continuous renal replacement therapy at 72 hours.

    Other: time span of filter change

Interventions

  • Othertime span of filter change

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

06

What researchers measure

Primary outcomes

  1. Mean filter lifespan per patient

    Comparison of mean filter lifespans between study groups

    Time frame: From start of CRRT to end of CRRT or at day 30 after randomization, whatever occurs first

  2. Protocol adherence as documented filter change within the specified period

    Proportion 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

    Time frame: From start of CRRT to end of CRRT or at day 30 after randomization, whatever occurs first

Secondary outcomes

  1. New intensive care unit (ICU)-associated acquired infection up to day 30

    Rate 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

    Time frame: From start of CRRT to end of CRRT or at day 30 after randomization, whatever occurs first

07

Study locations

1 site
08

References and documents

Publications

  • Gerss J, Meersch M, Kindgen-Milles D, Brandenburger T, Willam C, Kellum JA, Zarbock A. The Effect of Filter Lifespan during Continuous Renal Replacement Therapy in Critically Ill Patients with Acute Kidney Injury on the Rate of New-Onset Infection: Analysis from the RICH Randomized Controlled Trial. Am J Respir Crit Care Med. 2022 Aug 15;206(4):511-514. doi: 10.1164/rccm.202201-0063LE. No abstract available. PubMed 35549654 ↗
  • Zarbock A, Kullmar M, Kindgen-Milles D, Wempe C, Gerss J, Brandenburger T, Dimski T, Tyczynski B, Jahn M, Mulling N, Mehrlander M, Rosenberger P, Marx G, Simon TP, Jaschinski U, Deetjen P, Putensen C, Schewe JC, Kluge S, Jarczak D, Slowinski T, Bodenstein M, Meybohm P, Wirtz S, Moerer O, Kortgen A, Simon P, Bagshaw SM, Kellum JA, Meersch M; RICH Investigators and the Sepnet Trial Group. Effect of Regional Citrate Anticoagulation vs Systemic Heparin Anticoagulation During Continuous Kidney Replacement Therapy on Dialysis Filter Life Span and Mortality Among Critically Ill Patients With Acute Kidney Injury: A Randomized Clinical Trial. JAMA. 2020 Oct 27;324(16):1629-1639. doi: 10.1001/jama.2020.18618. PubMed 33095849 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jun 2026; primary completion for Jun 2028, 24 months later.

Of 249 non-industry interventional studies with no phase under Acute Kidney Injury, half reached primary completion within 27 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 44. This study's planned 24 months is below that.

Counting every sponsor, half of 267 studies reached it within 26 months; a quarter within 12 and three quarters within 44.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 1, 2026
First posted
Jun 5, 2026
StartEst.
Jun 2026
Primary completionEst.
Jun 2028
CompletionEst.
Jun 2028
Last update
Jun 15, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07630220
Lead sponsor
Universität Münster
Responsible party
Sponsor
First posted
Jun 5, 2026
Start date
Jun 2026 (estimated)
Primary completion
Jun 2028 (estimated)
Completion
Jun 2028 (estimated)
Last update
Jun 15, 2026

Study contacts

Alexander Zarbock, MD
Contact
zarbock@uni-muenster.de
+49-251-8347255
Nadja Schöne, MD
Contact
nadja.schoene@ukmuenster.de
+49-8347262
Alexander Zarbock, MD
study chair · University Hospital Muenster, Dept. of Anesthesiology, Intensive Care Medicine and Pain Therapy

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in May 2026. You cannot join it, but the record below documents what was studied.

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