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Using less fluid in daily Hemodiafiltration may remain safe, support good metabolic control, and reduce water waste

Effects of reduced Dialysate flow on dialysis efficiency, metabolic control, water consumption, and safety in patients undergoing in-center short daily Hemodiafiltration a randomized clinical trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-4zvmwzd
Enrollment
Unknown
Registered
2025-10-06
Start date
2025-05-10
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Renal Dialysis

Interventions

This is a randomized controlled clinical trial with two arms, unmasked. A total of 50 patients who meet the eligibility criteria will be probabilistically allocated to one of two intervention groups u
E02.870.300.200

Sponsors

Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
Lead Sponsor
Faculdade de Medicina da Universidade de São Paulo
Collaborator

Eligibility

Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Individuals of both genders; age over 18 years and under 75 years; undergoing daily Hemodiafiltration due to stage five chronic kidney disease; clinically stable in the last three months; adherence to treatment of at least eighty percent in the last three months; written informed consent provided

Exclusion criteria

Exclusion criteria: Presence of clinically relevant acute infectious diseases; active cancer; recent cardiovascular instability such as myocardial infarction or decompensated heart failure; clinical conditions that may interfere with result interpretation or treatment adherence; severe psychiatric conditions that may compromise adherence or result interpretation; pregnant women

Design outcomes

Primary

MeasureTime frame
To assess the effectiveness of different dialysate flow rates in the clearance of urea, ß2-microglobulin, and free light chains Kappa and Lambda. Clearance will be measured using stKt/V for urea, Kt/V for ß2-microglobulin, and the percentage reduction of Kappa and Lambda chains. Comparisons will be made between groups over time.

Secondary

MeasureTime frame
To assess the amount of water used per session, calculated by the formula: water volume = 0.94 × total dialysate volume per session × number of sessions per week. Group comparisons will be made based on the total volume consumed at 12 and 24 weeks.;To evaluate the cost of water used during hemodiafiltration sessions, calculating the cost difference between groups based on the total water bill and volume consumed over 24 weeks.;To monitor pre-dialysis levels of phosphorus, calcium, potassium, sodium, and parathyroid hormone, as well as the need for therapy adjustments. Hemoglobin and hematocrit levels will also be monitored, along with the use of erythropoiesis-stimulating agents. Adverse events such as blood pressure instability, calciphylaxis, and uremic symptoms (nausea, loss of appetite, weight loss, pruritus) will be tracked, and their frequency will be observed in both groups.

Countries

Brazil

Contacts

Public ContactFelipe Pascoal

Centro Brasiliense de Nefrologia e Diálise

felipemedstu@gmail.com+55 (61) 33640364

Outcome results

None listed

Source: REBEC (via WHO ICTRP)