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NCT Number: NCT06951685

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

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.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Centro de Investigación y Manejo del Cáncer (CIMCA)

San José, Costa Rica

Location status: Recruiting

Location contact

Luis Corrales Rodríguez

CONTACT

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subjects with femoral artery occlusion who require elective above-knee femoral popliteal bypass surgery
  • 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
  • At least 18 years of age at screening
  • Suitable anatomy (assessed by a pre-procedural contrasted CT scan or previous angiogram assessed up to 90 days prior to baseline)
  • Patient has been informed of the nature of the study, agrees to its provisions, and has provided written informed consent
  • Patient has been informed and agrees to pre- and post-procedure follow-up, including follow-up angiography
  • Life expectancy of at least 24 months

Exclusion criteria

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

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

Treatment and study plan

Xeltis Peripheral Artery Disease (XPAD) Bypass Conduit

Device

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.

Primary outcomes

  1. Primary patency rate

    Time frame: 12 months

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

  2. Freedom from device-related SAE

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

Secondary outcomes

  1. Implantation success rate

    Time frame: Day 1

    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

  2. Freedom from Major Bleeding events

    Time frame: Day 1, 1 and 6 months

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

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

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

    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)

  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

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

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

  7. Freedom from all-cause mortality

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

Study contacts

Contact information is provided by the study sponsor or research team.

Methee Schreuder

CONTACT

[email protected]

+31 40 751 7614

Sponsors and collaborators

Lead sponsor

Xeltis

Industry

Registry information

Official study title

Prospective, Non-randomized, Early Feasibility Clinical Study to Assess the Feasibility of the Novel Xeltis Peripheral Artery Disease (XPAD) Bypass Conduit

Important dates

Study start
2025
Primary completion
2026
Study completion
2028
First posted
Apr 30, 2025
Registry last updated
Jul 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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