Hemodialysis with Theranova MCO dialyzers versus high‑flux dialysis and hemodiafiltration

Comparisons Of Biochemical And Clinical Outcomes Of Hemodialysis Patients Treated With Middle Cut-Off Dialyzers Versus High-Flux Hemodialysis Or Hemodiafiltration

Observational Arbor Research Collaborative for Health · NCT07561424

This project tests whether using Theranova medium cut‑off dialyzers for adults on in‑center maintenance hemodialysis lowers the risk of death and other complications compared with high‑flux hemodialysis or hemodiafiltration.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
Ages18 Years and up
SexAll
SponsorArbor Research Collaborative for Health Academic / other
Locations1 site (Paris)
Trial IDNCT07561424 on ClinicalTrials.gov

What this trial studies

CONCORDIA is a retrospective, observational real‑world evidence comparison of adults on maintenance hemodialysis treated with medium cut‑off (MCO/Theranova) dialyzers versus high‑flux hemodialysis (HF‑HD) and hemodiafiltration (HDF). The study uses routine clinical and laboratory data from non‑DOPPS Theranova sites together with the DOPPS cohort as an external control to compare outcomes. The primary outcome is all‑cause mortality, and secondary outcomes include cardiovascular events, hospitalizations, infections, and laboratory measures related to anemia, mineral metabolism, and inflammation. Analyses will adjust for patient characteristics to account for baseline differences and explore whether MCO use is associated with improved biochemical and clinical outcomes or non‑inferior results compared with HDF.

Who should consider this trial

Good fit: Adults aged 18 or older who receive chronic, in‑center maintenance hemodialysis at participating clinics are the intended candidates.

Not a fit: Patients on peritoneal dialysis, home hemodialysis, or receiving only acute/short‑term dialysis are unlikely to be included or benefit from the comparisons made here.

Why it matters

Potential benefit: If positive, using MCO/Theranova dialyzers could reduce mortality and complications by better clearing middle molecules without the infrastructure needs of hemodiafiltration.

How similar studies have performed: Prior physiological and smaller observational studies have shown improved middle‑molecule clearance and some biomarker improvements with MCO membranes, but consistent reductions in mortality have not been clearly demonstrated.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria

* 18 years of age or older
* Treated at an in-centre dialysis clinic
* Receiving chronic, maintenance HD

Where this trial is running

Paris

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 ESKDDialysis PatientsdialysisHDF
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.