Clinical Trial on a Novel Blood Pumping System in 4008A Hemodialysis Machine

Not Applicable

Completed

• Conditions: Renal Dialysis

• Registration Number: NCT05217095
• Lead Sponsor: D.med Consulting GmbH

Brief Summary

The aim of this clinical trial will be to verify the feasibility of using an impeller system instead of a roller pump for hemodialysis, using the established 4008 hemodialysis system and a Convergence Dialyzer with design changes made to the FX-Coral P 600 dialyzer.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-12-13
• Study Start: 2022-01-19
• Study First Submitted QC: 2022-01-19
• Primary Completion: 2022-01-22
• Status Verified: 2022-02
• Study First Posted: 2022-02-01
• Study Completion: 2022-02-22
• Last Update Submitted: 2022-02-28
• Last Update Posted: 2022-03-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 8

Inclusion Criteria

• Patients must be up to 18-85 years
• Hemodialysis Schedule: 3 times per week; app. 3- 5 hour treatment
• Stable clinical conditions: no recent (last 2 weeks) hospitalization events, no recent main surgery (last 3 weeks), no acute cardiological problems, hemoglobine levels in the DOQI Guideline ranges.
• Hemodynamic stability during dialysis i.c. number of sessions complicated by acute hypotension events or arrhythmia <25% in the last 3 Months
• Well-functioning AVF vascular access: access recirculation ≤10%
• No coagulation disorders and anticoagulant therapy
• Patients must be using a similar size dialyzer as Convergence dialyzer
• Signed Inform consent form.

Exclusion Criteria

• Unstable clinical condition: recent hospitalization, recent surgery, anemia, active neoplastic diseases,shock or unstable cardiac function and intolerable to extracorporeal treatment
• Hemodynamic instability during the dialysis sessions; more than 25% of the sessions complicated by acute hypotension or arrhythmic events.Presence of clinically significant abnormality on a 12-lead ECG at Screening that, at the investigator's clinical judgment, may compromise the safety of the patient or affect the outcome of the study.
• History or presence of congestive heart failure with symptoms consistent with New York Heart Association Class III or IV functional status within 6 months prior to the study Convergence system treatment.
• Abnormal liver function values including but not limited to the aspartate transaminase, alanine transaminase or alkaline phosphatase ≥5 × upper limit normal.
• Any uncontrolled clinically significant respiratory disease in the investigator's opinion (e.g., chronic obstructive pulmonary disease, cystic fibrosis, bronchiectasis, asthma).
• Temporary excluded will be patients with increased body temperature due to some infective disease, dehydration, diarrhea, hyperglycemia,
• Severe bleeding, or history or evidence of bleeding diathesis or coagulopathy with the risk of bleeding or have to put on dialysis without anticoagulant.
• Using temporary or permanent dialysis catheter
• Uncontrolled diabetes mellitus or hypertension, at the discretion of investigator.
• Known pregnancy and lactating without pregnancy test
• Patient has known allergy or hypersensitivity reaction to dialyzer membrane or other disposable
• Any conditions significantly affecting the nervous system (i.e., neuropathic conditions or nervous system damage
• Patient shows evidence of a condition (psychological, emotional problems, any disorders or resultant therapy) that is likely to invalidate health information, consent, or limit the ability of the patient to comply with the protocol requirements in the opinion of the investigator
• Any other conditions at the discretion of investigator not suitable for patients to participate in the study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
Incidence of Alarms	1 study day	Incidence of alarms leading to end of treatment, cause identification
Serious adverse event / adverse event/ Serious adverse device effect/ Adverse device effect/Unanticipated serious adverse device effect	1 study day	Incidence of Serious adverse event / adverse event/ Serious adverse device effect/ Adverse device effect/Unanticipated serious adverse device effect
Product defects	1 study day	Product defects leading to end of treatment, cause identification
Incidence of "recoverable" alarms	1 study day	Incidence of "recoverable" alarms, cause of alarms i.e.arterial/venous pressure outside of set range/limits

Secondary Outcome Measures

Name	Time	Method
Arterial pressure	1 study day	The arterial pressure is measured in mmHg.
Bicarbonate	1 study day	The blood level of Bicarbonate is measured pre/post HD. Achievement of results in laboratory acceptable ranges.
Sodium	1 study day	The blood level of Sodium is measured pre/post HD. Achievement of results in laboratory acceptable ranges.
Dialysis Dose as single pool Kt/V	1 study day	The delivered dialysis dose as single-pool Kt/V. Achievement of a spKt/V \> 1.4 in at least 8 out of 10 patients.
Ultrafiltration Volume	1 study day	Total ultrafiltration volume (ml). Achievement of preset total ultrafiltration volume (ml) to reach dry weight target in at least 8 out of 10 patients.
pH	1 study day	The blood level of pH is measured pre/post HD. Achievement of results in laboratory acceptable ranges,
Average Blood Flow Rate	1 study day	The average blood flow rate is measured during the dialysis treatment. Maintenance of preset blood flow rates throughout the dialysis in at least 8 out of 10 patients
Completion Rate	1 study day	The completion rate of a dialysis session according to prescription. The study is considered to be successful, if at least 8 patients reach the effective dialysis time.
Venous pressure	1 study day	The venous pressure is measured in mmHg.
Dialysis Dose as Urea Reduction Ratio (URR)	1 study day	The delivered dialysis dose as URR.
Anticoagulation	1 study day	The total dose of anticoagulation consumption not to exceed patient treatment dose as I.U per kg
Clotting Score	1 study day	The clotting score of dialyzer(visual check, using common scale for dialyzer study); 1. No visible thrombosed fibers; 2. A few visible thrombosed fibers; 3. Moderately visible thrombosed fibers; 4. Many visible thrombosed fibers; 5. Completely visible thrombosed fibers; So the score goes from 1 (good) to 5 (bad).
Body weight change	1 study day	Patient body weight change (before treatment vs. after treatment).
Potassium	1 study day	The blood level of Potassium is measured pre/post HD. Achievement of results in laboratory acceptable ranges,
Chloride	1 study day	The blood level of Chloride is measured pre/post HD. Achievement of results in laboratory acceptable ranges.
Free hemoglobin	1 study day	The blood level of free hemoglobin (fHb measured on 30 min) to be in acceptable ranges for hemolysis
Impeller RPM	1 study day	The rotation of the impeller pump is measured in rpm.

Trial Locations

Locations (1)

Special Hospital for Nephrology and Dialysis Diamed; 🇲🇰 Skopje, North Macedonia