Comparing hemodialysis techniques for removing toxins in chronic kidney failure

Comparison of Expanded Hemodialysis With 3 Other Dialysis Techniques in the Removal of Uremic Toxins in Chronic Renal Failure

IRCCS Azienda Ospedaliero-Universitaria di Bologna · NCT06794216

This study is trying to see if a new hemodialysis filter can remove more toxins from patients with chronic kidney failure compared to other standard methods.

Quick facts

Study typeObservational
Enrollment50 (estimated)
Ages18 Years and up
SexAll
SponsorIRCCS Azienda Ospedaliero-Universitaria di Bologna (other)
Locations1 site (Bologna, Emilia-Romagna)
Trial IDNCT06794216 on ClinicalTrials.gov

What this trial studies

This observational study evaluates the effectiveness of different hemodialysis techniques in removing uremic toxins from patients with chronic end-stage renal disease. It compares the Theranova 400™ filter used in expanded hemodialysis (HDx) with high-flux hemodialysis (HF HD), online hemodiafiltration (OL-HDF), and high-flux hemodiafiltration (HFR). The study will analyze data from approximately 50 patients treated over a four-year period, focusing on mid-term outcomes and the potential benefits of personalized therapy for frail patients. The study is non-interventional, relying on standard clinical practices and existing patient data.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have been on chronic hemodialysis for at least six months and meet specific clinical criteria.

Not a fit: Patients with active bleeding, uncontrolled diabetes, or other severe comorbidities may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved dialysis techniques that better remove toxins and enhance the quality of life for patients with chronic kidney failure.

How similar studies have performed: While there have been studies comparing some hemodialysis techniques, this specific comparison of HDx with HFR is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years
* Chronic hemodialytic treatment (on dialysis for at least 6 months), hemodialytic treatment with MCO filter (Theranova) or HF filter, OL- HDF or HFR with HFR filter17.
* Continuous use of the same filter for at least 12 months.
* Diuresis \< 200 ml/day.
* Trisweekly hemodialysis treatment.
* Session duration ≥ 210 minutes.
* Availability of clinical data collected during the follow-up that took place at the O.U. of Nephrology, Dialysis and Transplantation - La Manna

Exclusion Criteria:

* Intradialytic hypotension
* Need for dialysis without heparin
* Active bleeding
* Active hematologic diseases
* Thrombocytopenia
* Chronic hepatopathies
* Active systemic inflammatory diseases
* Uncontrolled diabetes mellitus
* Temporary vascular access
* Recurrent vascular access infections

Where this trial is running

Bologna, Emilia-Romagna

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.

View on ClinicalTrials.gov →

Conditions: Dialysis

Last reviewed 2026-05-15 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.