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RecruitingNCT06951685Updated Jul 15, 2025

Xeltis Peripheral Artery Disease (XPAD) Bypass Conduit Early Feasibility Study

An interventional study of Xeltis Peripheral Artery Disease (XPAD) Bypass Conduit in Peripheral Artery Occlusive Disease, sponsored by Xeltis. Recruiting at 1 site in Costa Rica. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-07-15.

Sponsored by Xeltis · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

A prospective, single arm, non-randomized early feasibility study to evaluate the preliminary safety and performance of the XPAD conduit in patients with peripheral arterial occlusive disease (PAOD), scheduled to undergo elective above-knee femoral popliteal bypass surgery.

02

Conditions studied

  • Peripheral Artery Occlusive Disease
03

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Subjects with femoral artery occlusion who require elective above-knee femoral popliteal bypass surgery
  2. Patient has Rutherford grade 3, 4, or 5 occlusive vascular disease and TASC C or D lesions. Rutherford grade 5 may be included with a wound, ischemia and foot infection (WiFi) classification of up to grade 2, provided there are two outflow vessels with at least one reaching the pedal arch
  3. At least 18 years of age at screening
  4. Suitable anatomy (assessed by a pre-procedural contrasted CT scan or previous angiogram assessed up to 90 days prior to baseline)
  5. Patient has been informed of the nature of the study, agrees to its provisions, and has provided written informed consent
  6. Patient has been informed and agrees to pre- and post-procedure follow-up, including follow-up angiography
  7. Life expectancy of at least 24 months

Exclusion criteria

Exclusion Criteria:

  1. Subject requires, or is scheduled for, a cardiac surgical procedure or a different vascular surgical procedure within 30 days of study procedure.
  2. Presence or history of bypass in the diseased limb
  3. Subject requires sequential extremity revascularizations or other procedures that require use of additional vascular grafts
  4. Stroke or myocardial infarction event within 6 weeks of the procedure or evidence of prior massive stroke (Modified Rankin Scale 3 or above)
  5. History of acute arterial occlusion requiring an emergent intervention
  6. Severe chronic renal insufficiency (serum creatinine >2.5 mg/dL) or undergoing hemodialysis
  7. Previous renal transplant
  8. Uncontrolled arterial hypertension (BP >200 mmHg) at 2 successive readings
  9. Uncontrolled or poorly controlled diabetes
  10. Abnormal blood values that could influence patient recovery and or/ graft hemostasis
  11. 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
  12. Any active local or systemic infection
  13. Known heparin-induced thrombocytopenia
  14. Known active bleeding disorder and/or any coagulopathy or thromboembolic disease
  15. Allergies to study device (nitinol) or agents/medication, such as contrast agents or aspirin, that can't be controlled medically
  16. Previous enrolment in this study
  17. Subject is participating in another study
  18. Pregnant or breastfeeding woman or woman in fertile period not taking adequate contraceptives
  19. 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 exclusion criteria:

1. Unsuitable anatomy to implant the XPAD conduit (e.g. target vessel diameter smaller than anticipated; severe calcification)

04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (estimated)

Study arms

  • Experimental
    XPAD Bypass Conduit

    Device: Xeltis Peripheral Artery Disease (XPAD) Bypass Conduit

Interventions

  • DeviceXeltis Peripheral Artery Disease (XPAD) Bypass Conduit

    The XPAD bypass conduit is a sterile, restorative biodegradable polymer-based vascular graft, consisting of a tubular structure with a 33cm length and 6mm inner diameter. It is comprised of a highly porous polymer matrix and an embedded electropolished nitinol reinforcement layer (Strain Relief System). The XPAD conduit is in a straight configuration and may be implanted above the knee for elective femoral popliteal bypass surgery.

05

What researchers measure

Primary outcomes

  1. Primary patency rate

    Primary patency: Defined as the interval between graft implantation and the first intervention to maintain or restore patency

    Time frame: 12 months

  2. Freedom from device-related SAE

    Time frame: Day 1, 1, 6 and 12 months

Secondary outcomes

  1. Implantation success rate

    Implantation success: Defined as a technically successful XPAD conduit implantation in the planned configuration, free from kinking and tension in the anastomoses, and a patent XPAD conduit at the moment of discharge

    Time frame: Day 1

  2. Freedom from Major Bleeding events

    Major Bleeding: Defined as type 3, 4 or 5 bleeding according to the Bleeding Academic Research Consortium (BARC) classifications

    Time frame: Day 1, 1 and 6 months

  3. Patency (primary, primary assisted, and secondary) rates

    Primary patency: Defined as the interval between graft implantation and the first intervention to maintain or restore patency. Assisted primary patency: Defined as the interval between graft implantation and the first occlusion (thrombosis), including interventions (operative or endovascular) aimed to maintain the functionality the graft. Secondary patency: Defined as the interval between graft implantation and abandonment with or without interventions (operative or endovascular) aimed to maintain the functionality the graft, including occurrence of a censored event (death, change of modality, loss of follow-up)

    Time frame: 6, 12, 24, and 36 months

  4. Freedom from device-related SAE

    Time frame: 24 and 36 months

  5. Rate of wound/graft infections

    Time frame: 1, 6, 12, 24, and 36 months

  6. Freedom from Major Amputations

    Major Amputation: Defined as any amputation that results in limb shortening

    Time frame: 1, 6, 12, 24, and 36 months

  7. Freedom from all-cause mortality

    Time frame: 1, 6, 12, 24, and 36 months

06

Study locations

1 of 1 sites recruiting
  • Centro de Investigación y Manejo del Cáncer (CIMCA)
    San José, Costa Rica
    • Luis Corrales Rodríguez · Contact
    Recruiting
07

Registry details

Key details

Study ID
NCT06951685
Lead sponsor
Xeltis
Responsible party
Sponsor
First posted
Apr 30, 2025
Start date
May 2, 2025
Primary completion
Sep 2026 (estimated)
Completion
Sep 2028 (estimated)
Last update
Jul 15, 2025

Study contacts

Methee Schreuder
Contact
clinical@xeltis.com
+31 40 751 7614

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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