A new category of vascular access device for hemodialysis.
The surgical vascular device is implanted using standard techniques. Post implantation, aXess™ is ready for cannulation. Over time, it transforms into the patient’s own living vessel for reliable access.
CE marking received in 2026. US pivotal trial ongoing.
aXess™ was granted Breakthrough Device Designation by FDA.
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Regulatory status. The aXess™ Hemodialysis Conduit is CE marked in accordance with EU Medical Device Regulation 2017/745. In the United States it is an investigational device, limited by federal law to investigational use only, and not yet approved for commercial distribution.
CLINICAL NEED
Addressing the challenges of vascular access in hemodialysis.
Today, vascular access in hemodialysis is not a ‘create and forget’ procedure. Vascular access must be created, maintained and often repeatedly restored to ensure reliable blood flow for dialysis.
For patients, these challenges can lead to lost dialysis time, increased hospitalizations, fewer available vascular access options over time and reduced quality of life.
For clinicians and care teams, there is an increased focus on vascular access management, rather than underlying ESRD care. The increased intervention procedure burden disrupts operating room schedules and consumes valuable dialysis resources.
aXess™ was designed to address these challenges.
What is aXess™
Different by design.
aXess™ combines the immediate availability of an off-the-shelf medical device with the long-term benefits of transforming into each patient’s own living vessel.
Designed to provide clinical and economic benefits for patients and care team by reducing infection risk, intervention burden and catheter dependency. aXess™ delivers these benefits thanks to complementary layers – Design, Manufacturing, Clinical, Technique and Economics.
Watch our Restorex® Film
Built on Restorex® advanced polymer technology, aXess™ supports fast cannulation from 14 days while gradually transforming into a living vessel for reliable vascular access.
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Porosity achieved with proprietary electrospinning, allows instantaneous blood entrapment for fast hemostasis. Early cannulation 14 days after implantation.[9]
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Kink resistance and mechanical support, provided by embedded micro-skeleton for reliable access across high-volume cannulation.[10]
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Unique pro-healing response to Restorex® nature mimicking material, based on Nobel Prize-winning supramolecular chemistry, generating full neovascularization.[12]
Powerful clinical evidence behind aXess™
Strong global clinical evidence, aXess™ reinforced by 12‑month EU pivotal results [1]
Clinical trial data demonstrate that aXess™ provides reliable vascular access in hemodialysis, with reduced infection rates and fewer interventions compared with traditional grafts, catheters and fistulas [vs historical benchmarks].
12 months, European pivotal, multi-center, n=120 patients; of which many complex patients with 66% prior CVC, 34% prior AVF (17% with multiple attempts), 6% failed AVG.
High secondary patency
79
aXess™ 12 month secondary patency of 79%, in line with matured AVF patency.
12 months European pivotal, multi-center trial; 120 complex patients [1]
(historical benchmarks) [2]
Low infection rates
3
Only 3% clinically relevant infection rate vs. higher rates for other access options.
Clinically relevant access related infections
(per patient year)
(historical benchmarks) [5]
Fewer reinterventions
60
Up to 60% fewer patency related reinterventions vs AVG and 30% fewer vs matured AVF.
Patency-related reintervention rate
(per patient year)
(historical benchmarks) [6]
Compliance increases when aXess™ transforms.
A mechanical proof of a remodeled vessel
Doppler ultrasound shows a gradual increase in pulsatility between implant and follow-up at 12 months and beyond, with the vessel wall pulsating with the cardiac cycle: the mechanical signature of true tissue replacement.
Case 1
12 months
Case 2
18 months
Case 3
24 months
Case 4
24 months
aXess™ precision-engineering uses Restorex® supermolecule polymer technology, proprietary electrospinning manufacturing and an embedded nitinol micro-skeleton to support consistent product performance and handling.
“At 6 months, the Xeltis aXess™ conduit is soft and flexible, very similar to a native vessel”
Dr. Jan de Letter, Vascular Surgeon, AZ Sint Jan, Brugge, Belgium
PATIENT TESTIMONIALS
aXess™ Patient Testimonials

“It’s about being able to dialyze to live, rather than living to dialize.”
aXess™ Patient
Watch our film on the ongoing aXess™ EU Pivotal Trial

“ I love it, I recommend it…when I leave dialysis sessions, I feel good, I don’t feel tired at all.”
Reginal, Patient in US Pivotal implanted with aXess™
Watch Video
Advancing Vascular Access in Kidney Care: Challenges and Innovations
TECHNICAL & LOGISTICAL INFORMATION
Product Information & Specifications
aXess™ is a vascular implant for adult ESRD patients requiring arteriovenous hemodialysis access in the upper extremities.
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Compatible with standard surgical techniques
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Off-the-shelf implant
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Designed for integration into established clinical workflows
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Single-use sterile device – sterilized by gamma irradiation
Available in two configurations — Straight (S100) and Loop (L100) — with nitinol micro-skeleton-free ends for trimming and surgical customization.
TECHNICAL INFORMATION
TECHNICAL INFORMATION
Regulatory status. The aXess™ Hemodialysis Conduit is CE marked in accordance with EU Medical Device Regulation 2017/745. In the United States it is an investigational device, limited by federal law to investigational use only, and not yet approved for commercial distribution.

The aXess™ Hemodialysis Conduit is CE marked in accordance with EU Medical Device Regulation 2017/745. In the United States it is an investigational device, limited by federal law to investigational use only, and not yet approved for commercial distribution.
Intended purpose
The aXess™ Hemodialysis Conduit is intended for use as a vascular implant in patients requiring access for hemodialysis.
Indication for use
The aXess™ Hemodialysis Conduit is indicated for patients with end-stage renal disease (ESRD) who require arteriovenous hemodialysis access in the upper extremities.
Target patient population
Adult patients suffering from ESRD, requiring a vascular access for hemodialysis and having a suitable anatomy according to the treating physician (e.g. artery and vein with a lumen diameter of 3mm or greater).
RESOURCES
aXess™ Resources and Downloads

aXess™ Instructions for Use
IFU and other relevant documentation for patients and professionals

Advancing Vascular Access in Kidney Care: Challenges and Innovations
AAKP HealthLine Innovator
Watch Video
FREQUENTLY ASKED QUESTIONS
FAQ

What is aXess™?
aXess™ is a medical device for hemodialysis access.
The vascular access device is implanted in a single procedure, acting as a scaffold ready for cannulation and gradually transforming into each patient’s own living vessel for reliable, long-term access.
How does aXess™ work?
aXess™ is different by design. Built on Nobel Prize-winning science, the aXess™ device leverages Restorex® supramolecular electrospun polymer enabling the body’s natural healing. At implantation, the patient’s own cells infiltrate the porous aXess™ design, allowing instantaneous blood entrapment leading to fast hemostasis.
The implant allows for early cannulation with in 14 days. Overtime, a controlled transformation to the patient’s own living vessels is achieved for reliable access. Reducing infection risk, intervention burden and catheter dependency to positively impact patients’ quality of life. This has a positive shift on hemodialysis patient journey, toward a reliable living access and better quality of life.
What is the regulatory status of aXess™ in Europe and the US
aXess™ has received CE mark enabling commercialization across Europe.
In the United States, aXess™ FDA was granted Breakthrough Device Designation by FDA and is still an investigational device, limited by federal law to investigational use only, and not yet approved for commercial distribution.
How is aXess™ different from AV grafts or fistulas?
Unlike AV grafts, aXess™ is designed to be replaced by living tissue. aXess™ provides reliable hemodialysis access with fewer redos, and unlike fistulas, it provides a fast implantable solution allowing cannulation after 14 days.
When can aXess™ be used after implantation?
aXess™ is designed for early cannulation. The IFU currently recommend 14 days after implantation.
Who can benefit from aXess™?
ESRD patients requiring vascular access for hemodialysis.
What are the key benefits of aXess™?
aXess™ is designed to provide long-term clinical and economic benefits for patients and care teams by reducing infection risk, intervention burden and catheter dependency. aXess™ delivers these outcomes thanks to complementary layers of value with its design, manufacturing, clinical evidence, familiar implanting technique and life-long better economics.
Benefits include:
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Reliable access as aXess™ transforms into each patient’s vessel. Infection resistance and fewer emergency interventions.
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Lower reintervention burden, infection risk and catheter dependency. Delivering meaningful life-time cost saving, with up to €13k saving per patient on intervention devices, and up to €30k per each avoided blood stream infection.
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Early cannulation (IFU recommends after 14 days)
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Familiar implanting procedure, benefits of soft and strong material for ease of suturing, and fast hemostasis for predictable and time efficient dialysis sessions (in >95% of cannulations, hemostasis achieved in 5–10 mins.)[9]
What clinical evidence supports aXess™?
A substantial global body of evidence supports aXess™ clinical outcomes.
Recently Xeltis presented 12-month EU aXess™ pivotal multi-center trial with 120 patients; of which many complex patients [66% prior CVC, 34% prior AVF (17% with multiple attempts), 6% failed AVG].
Data demonstrates vs historical benchmarks:
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Sustained vascular access performance – 79% secondary patency at 12 months, in line with matured AVF patency and better than AVG.[2]
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Low infection rates – Clinically relevant access-related infection rate of ~3% per patient-year, comparable to 4% for arteriovenous fistulas (AVFs), 9% for arteriovenous grafts (AVGs) and 22% for central venous catheters (CVCs).[5]
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Reduced reintervention rates – Up to 60% fewer reinterventions compared with standard synthetic grafts (AVGs) and up to 30% fewer vs matured arteriovenous fistulas (AVFs).[6]
How long does it take for the implant to transform to a natural tissue?
Post-implantation, aXess™ is a scaffold ready to cannulate and the transformation to a living vessel starts at implantation. You can see it. Blood immediately enters the porous Restorex® scaffold; fibrin and cells infiltrate and begin early tissue integration — supporting fast cannulation. IFU currently indicates cannulation can begin after 14 days.
Over time the polymer is gradually resorbed and replaced by the patient’s own tissue (largely resorbed over ~2 years based on preclinical sheep data), forming a living, compliant vessel.
For patients: How do I get aXess™?
In the EU aXess™ is now CE marked and is available in selected-sites, patients should consult their healthcare provider for access.
In the US aXess™ enrollment into its pivotal trial is ongoing. Patients can consult their healthcare provider to assess eligibility.
To learn more about the US clinical program go to usa.axesspivotal.com
Why is hemodialysis vascular access important?
Reliable vascular access is essential for effective hemodialysis treatment and significantly impacts patient outcomes and quality of life. Today Hemodialysis access is not a “create and forget” procedure.
It is a lifelong journey – for the patient, and for the care team behind them. Vascular access must be created, maintained and often repeatedly restored to ensure reliable blood flow for dialysis. aXess™ was designed to address these challenges.
CONTACT
The Xeltis team is happy to answer your questions regarding aXess™get in touch.
REFERENCES
[1] aXess™ European Pivotal trial, 12 months data vs. historical benchmarks; 66% prior CVC, 34% prior AVF (17% with multiple attempts), 6% failed AVG. Comorbidities: 39% diabetes, 21% cardiovascular.
[2] [ePTFE] R.J. Halbert et al, Kidney360, 2020.; [AVF] T. S. Huber et al, J Vasc Surg. 2003.; [AVF] KJ. Woodside et al, AJKD, 2021;71(6).
[3] Data on file, REP #164044-001
[4] Data on file CSR #154049, table 18.
[5] [AVF] A. A. Al-Jaishi et al. Am Soc Nephrol 2017;28; [CVC] D.B Nguyen et al. Clin J Am Soc Nephrol, 2017;12 and A. A. Al-Jaishi et al. Am Soc Nephrol 2017;28;[Other AVG] R.J. Halbert et al. Kidney360 2020;1(12).
[6] Patency related reinterventions per patient year; [AVF, Other-AVG] Voorzaat BM et al. Kidney360. 2020;1(9); [PTFE] P. Marcus et al. Vasc Endovascular Surg, 2019;53(2).
[7] Average interventions per patient life derived from: Woodside et al., AJKD 2018 and T. S. Huber et al, 2003. With €1,200–€3,000 per PTA/thrombectomy/surgical revision.
[8] Average long-term hospitalization based on D.B Nguyen et al. Clin J Am Soc Nephrol, 2017;12; A. A. Al-Jaishi et al. Am Soc Nephrol 2017;28.
[9] Data on files, REP #154061-001
[10] Data on files, REP#137122-002
[11] Tozzi M. et al. The Journal of Vascular Access. 2025;27(3) Nov 1.
[12] Cramer M, et al. J Biomed Mater Res A. 2022,110(2) Internal Xeltis study XEL-PR-042.

