End Stage Renal Disease
Conditions
Brief summary
A prospective, single arm, non-randomized feasibility study to confirm the safety and performance of the Xeltis Hemodialysis Access conduit, aXess-E, in subjects older than 18 years with end-stage renal disease, who plan to undergo hemodialysis for at least the first 6 months after study access creation.
Interventions
DEVICEaXess-E conduit
The aXess-E conduit is a sterile, regenerative biodegradable polymer-based vascular conduit, consisting of a tubular structure with a 6mm inner diameter. It is comprised of a highly porous polymer matrix and an embedded electropolished nitinol reinforcement layer (Strain Relief System). The aXess-E conduit is able to support both straight and loop configurations and may be implanted in the upper arm and forearm.
Sponsors
Xeltis
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. Subjects with end-stage renal disease (ESRD) who require placement of an Arteriovenous Graft (AVG) in the upper extremity to start or maintain hemodialysis therapy 2. At least 18 years of age at screening 3. Suitable anatomy (e.g. a target vein with a minimum diameter of 5mm) for the implantation of an aXess-E conduit 4. The patient has been informed about the nature of the study, understands and agrees to its provisions, and has personally provided written informed consent 5. The patient has been informed and agrees to pre- and post- procedure follow-up 6. Life expectancy of at least 12 months
Exclusion criteria
1. History or evidence of severe cardiac disease (New York Heart Association (NYHA) Functional Class IV and/or Ejection Fraction (EF) \<25%), myocardial infarction within six months of study enrolment, ventricular tachyarrhythmias requiring continuing treatment, or unstable angina 2. Uncontrolled or poorly controlled diabetes 3. Abnormal blood values that could influence patient recovery and or/ conduit hemostasis 4. Reduced liver function, defined as: \>2x the upper limit of normal for serum bilirubin, International Normalized Ratio (INR) \>1.5 or prothrombin time (PT) \>18 seconds 5. Any active local or systemic infection 6. Known heparin-induced thrombocytopenia 7. Known active bleeding disorder and/or any coagulopathy or thromboembolic disease 8. Allergies to study device (nitinol) or agents/medication, such as contrast agents or aspirin, that can't be controlled medically 9. Anticipated renal transplant within 6 months 10. Known or suspected central vein obstruction on the side of planned conduit implantation 11. Previous dialysis access conduit in the operative limb unless the aXess-E conduit can be placed more proximally than the previous failed conduit 12. Previous enrolment in this study 13. Subject is participating in another study 14. Pregnant or breastfeeding woman or woman in fertile period not taking adequate contraceptives 15. Any other condition which, in the judgement of the investigator would preclude adequate evaluation for the safety and performance of the study conduit Intra-operative
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Primary Patency rate | 6 months | Defined as the interval between vascular access creation and the first intervention to maintain or restore patency. |
| Freedom from device-related Serious Adverse Event (SAE) | 6 months | — |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Implantation success rate | 1 day, from moment of implant until end of procedure day | Defined as a technically successful aXess-E conduit implantation in the planned configuration, free from kinking and tension in the anastomoses. |
| Primary patency rate | 6, 12, 18, and 24 months | Primary patency: Defined as the interval between vascular access creation and the first intervention to maintain or restore patency. |
| Primary assisted patency rate | 6, 12, 18, and 24 months | Assisted primary patency: Defined as the interval between vascular access creation and the first occlusion (thrombosis), including interventions (operative or endovascular) aimed to maintain the functionality the vascular access. |
| Secondary patency rate | 6, 12, 18, and 24 months | Secondary patency: Defined as the interval between vascular access creation and abandonment with or without interventions (operative or endovascular) aimed to maintain the functionality the vascular access, including occurrence of a censored event (death, change of modality, loss of follow-up). |
| Functional patency rate | 6, 12, 18, and 24 months | Functional patency: Defined as the interval between first cannulation and abandonment, including occurrence of a censored event (death, change of modality, loss of follow-up). |
| Time (expressed in months) to first intervention and to access abandonment | 24 months | — |
| Rate of access-related interventions required to achieve/maintain patency | 6, 12, 18, and 24 months | — |
| Freedom from device-related SAE | 12, 18, and 24 months | — |
| Rate of access site infections | 6, 12, 18, and 24 months | — |
| Proportion of hemodialysis sessions completed via central venous catheter (CVC) during the first 12 months of access creation and access cannulation, irrespective of access abandonment | 24 months | — |
| Time to first cannulation | 24 months | Assessed only in subjects who are already on dialysis at the time of implant. |
| Following first cannulation, number of days with CVC in situ (catheter contact time) irrespective of access abandonment | 12 months | — |
Countries
Portugal, Serbia
Contacts
CONTACTEliane Schutte
Outcome results
None listed